summaryrefslogtreecommitdiff
path: root/src/core.py
blob: af0c634815196e7b722fab2420e6ac80bb6959e6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
# Copyright 2010-2011 Florent Le Coz <louiz@louiz.org>
#
# This file is part of Poezio.
#
# Poezio is free software: you can redistribute it and/or modify
# it under the terms of the zlib license. See the COPYING file.

from gettext import gettext as _

import os
import sys
import time
import curses
import pipes
import ssl

from functools import reduce
from hashlib import sha1
from threading import Event
from datetime import datetime
from xml.etree import cElementTree as ET

import pep
import common
import theming
import logging
import singleton
import collections

from sleekxmpp import JID, InvalidJID
from common import safeJID
from sleekxmpp.xmlstream.stanzabase import StanzaBase
from sleekxmpp.xmlstream.handler import Callback
from sleekxmpp.xmlstream.matcher import StanzaPath

log = logging.getLogger(__name__)

import multiuserchat as muc
import tabs

import fixes
import decorators
import xhtml
import events
import pubsub
import windows
import connection
import timed_events
import bookmark

from plugin_manager import PluginManager

from data_forms import DataFormsTab
from config import config, firstrun, options as config_opts
from logger import logger
from roster import roster
from contact import Contact, Resource
from text_buffer import TextBuffer, CorrectionError
from keyboard import keyboard
from theming import get_theme, dump_tuple
from fifo import Fifo
from windows import g_lock
from daemon import Executor

# http://xmpp.org/extensions/xep-0045.html#errorstatus
ERROR_AND_STATUS_CODES = {
    '401': _('A password is required'),
    '403': _('Permission denied'),
    '404': _('The room doesn’t exist'),
    '405': _('Your are not allowed to create a new room'),
    '406': _('A reserved nick must be used'),
    '407': _('You are not in the member list'),
    '409': _('This nickname is already in use or has been reserved'),
    '503': _('The maximum number of users has been reached'),
    }

# http://xmpp.org/extensions/xep-0086.html
DEPRECATED_ERRORS = {
    '302': _('Redirect'),
    '400': _('Bad request'),
    '401': _('Not authorized'),
    '402': _('Payment required'),
    '403': _('Forbidden'),
    '404': _('Not found'),
    '405': _('Not allowed'),
    '406': _('Not acceptable'),
    '407': _('Registration required'),
    '408': _('Request timeout'),
    '409': _('Conflict'),
    '500': _('Internal server error'),
    '501': _('Feature not implemented'),
    '502': _('Remote server error'),
    '503': _('Service unavailable'),
    '504': _('Remote server timeout'),
    '510': _('Disconnected'),
}

possible_show = {'available':None,
                 'chat':'chat',
                 'away':'away',
                 'afk':'away',
                 'dnd':'dnd',
                 'busy':'dnd',
                 'xa':'xa'
                 }

Status = collections.namedtuple('Status', 'show message')
Command = collections.namedtuple('Command', 'func desc comp short usage')

class Core(object):
    """
    “Main” class of poezion
    """

    def __init__(self):
        # All uncaught exception are given to this callback, instead
        # of being displayed on the screen and exiting the program.
        sys.excepthook = self.on_exception
        self.connection_time = time.time()
        status = config.get('status', None)
        status = possible_show.get(status, None)
        self.status = Status(show=status,
                message=config.get('status_message', ''))
        self.running = True
        self.xmpp = singleton.Singleton(connection.Connection)
        self.xmpp.core = self
        roster.set_node(self.xmpp.client_roster)
        decorators.refresh_wrapper.core = self
        self.paused = False
        self.event = Event()
        self.debug = False
        self.remote_fifo = None
        # a unique buffer used to store global informations
        # that are displayed in almost all tabs, in an
        # information window.
        self.information_buffer = TextBuffer()
        self.information_win_size = config.get('info_win_height', 2, 'var')
        self.information_win = windows.TextWin(300)
        self.information_buffer.add_window(self.information_win)

        self.tab_win = windows.GlobalInfoBar()
        # Number of xml tabs opened, used to avoid useless memory consumption
        self.xml_tab = False
        self.xml_buffer = TextBuffer()

        self.tabs = []
        self._current_tab_nb = 0
        self.previous_tab_nb = 0

        self.own_nick = config.get('default_nick', '') or self.xmpp.boundjid.user or os.environ.get('USER') or 'poezio'

        self.plugins_autoloaded = False
        self.plugin_manager = PluginManager(self)
        self.events = events.EventHandler()


        # global commands, available from all tabs
        # a command is tuple of the form:
        # (the function executing the command. Takes a string as argument,
        #  a string representing the help message,
        #  a completion function, taking a Input as argument. Can be None)
        #  The completion function should return True if a completion was
        #  made ; False otherwise
        self.commands = {}
        self.register_initial_commands()

        # We are invisible
        if config.get('send_initial_presence', 'true').lower() == 'false':
            del self.commands['status']
            del self.commands['show']

        self.key_func = KeyDict()
        # Key bindings associated with handlers
        # and pseudo-keys used to map actions below.
        key_func = {
            "KEY_PPAGE": self.scroll_page_up,
            "KEY_NPAGE": self.scroll_page_down,
            "^B": self.scroll_line_up,
            "^F": self.scroll_line_down,
            "^X": self.scroll_half_down,
            "^S": self.scroll_half_up,
            "KEY_F(5)": self.rotate_rooms_left,
            "^P": self.rotate_rooms_left,
            "M-[-D": self.rotate_rooms_left,
            'kLFT3': self.rotate_rooms_left,
            "KEY_F(6)": self.rotate_rooms_right,
            "^N": self.rotate_rooms_right,
            "M-[-C": self.rotate_rooms_right,
            'kRIT3': self.rotate_rooms_right,
            "KEY_F(4)": self.toggle_left_pane,
            "KEY_F(7)": self.shrink_information_win,
            "KEY_F(8)": self.grow_information_win,
            "KEY_RESIZE": self.call_for_resize,
            'M-e': self.go_to_important_room,
            'M-r': self.go_to_roster,
            'M-z': self.go_to_previous_tab,
            '^L': self.full_screen_redraw,
            'M-j': self.go_to_room_number,
            'M-D': self.scroll_info_up,
            'M-C': self.scroll_info_down,
            'M-k': self.escape_next_key,
        ######## actions mappings ##########
            '_bookmark': self.command_bookmark,
            '_bookmark_local': self.command_bookmark_local,
            '_close_tab': self.close_tab,
            '_disconnect': self.disconnect,
            '_quit': self.command_quit,
            '_redraw_screen': self.full_screen_redraw,
            '_reload_theme': self.command_theme,
            '_remove_bookmark': self.command_remove_bookmark,
            '_room_left': self.rotate_rooms_left,
            '_room_right': self.rotate_rooms_right,
            '_show_roster': self.go_to_roster,
            '_scroll_down': self.scroll_page_down,
            '_scroll_up': self.scroll_page_up,
            '_scroll_info_up': self.scroll_info_up,
            '_scroll_info_down': self.scroll_info_down,
            '_server_cycle': self.command_server_cycle,
            '_show_bookmarks': self.command_bookmarks,
            '_show_important_room': self.go_to_important_room,
            '_show_invitations': self.command_invitations,
            '_show_plugins': self.command_plugins,
            '_show_xmltab': self.command_xml_tab,
            '_toggle_pane': self.toggle_left_pane,
        ###### status actions ######
            '_available': lambda: self.command_status('available'),
            '_away': lambda: self.command_status('away'),
            '_chat': lambda: self.command_status('chat'),
            '_dnd': lambda: self.command_status('dnd'),
            '_xa': lambda: self.command_status('xa'),
        ##### Custom actions ########
            '_exc_': lambda arg: self.try_execute(arg),
        }
        self.key_func.update(key_func)

        # Add handlers
        self.xmpp.add_event_handler('connected', self.on_connected)
        self.xmpp.add_event_handler('disconnected', self.on_disconnected)
        self.xmpp.add_event_handler('failed_auth', self.on_failed_auth)
        self.xmpp.add_event_handler('no_auth', self.on_no_auth)
        self.xmpp.add_event_handler("session_start", self.on_session_start)
        self.xmpp.add_event_handler("session_start", self.on_session_start_features)
        self.xmpp.add_event_handler("groupchat_presence", self.on_groupchat_presence)
        self.xmpp.add_event_handler("groupchat_message", self.on_groupchat_message)
        self.xmpp.add_event_handler("groupchat_invite", self.on_groupchat_invite)
        self.xmpp.add_event_handler("groupchat_decline", self.on_groupchat_decline)
        self.xmpp.add_event_handler("groupchat_config_status", self.on_status_codes)
        self.xmpp.add_event_handler("groupchat_subject", self.on_groupchat_subject)
        self.xmpp.add_event_handler("message", self.on_message)
        self.xmpp.add_event_handler("got_online" , self.on_got_online)
        self.xmpp.add_event_handler("got_offline" , self.on_got_offline)
        self.xmpp.add_event_handler("roster_update", self.on_roster_update)
        self.xmpp.add_event_handler("changed_status", self.on_presence)
        self.xmpp.add_event_handler("presence_error", self.on_presence_error)
        self.xmpp.add_event_handler("roster_subscription_request", self.on_subscription_request)
        self.xmpp.add_event_handler("roster_subscription_authorized", self.on_subscription_authorized)
        self.xmpp.add_event_handler("roster_subscription_remove", self.on_subscription_remove)
        self.xmpp.add_event_handler("roster_subscription_removed", self.on_subscription_removed)
        self.xmpp.add_event_handler("message_xform", self.on_data_form)
        self.xmpp.add_event_handler("chatstate_active", self.on_chatstate_active)
        self.xmpp.add_event_handler("chatstate_composing", self.on_chatstate_composing)
        self.xmpp.add_event_handler("chatstate_paused", self.on_chatstate_paused)
        self.xmpp.add_event_handler("chatstate_gone", self.on_chatstate_gone)
        self.xmpp.add_event_handler("chatstate_inactive", self.on_chatstate_inactive)
        self.xmpp.add_event_handler("attention", self.on_attention)
        self.xmpp.add_event_handler("ssl_cert", self.validate_ssl)
        self.all_stanzas = Callback('custom matcher', connection.MatchAll(None), self.incoming_stanza)
        self.xmpp.register_handler(self.all_stanzas)
        if config.get('enable_user_tune', 'true') != 'false':
            self.xmpp.add_event_handler("user_tune_publish", self.on_tune_event)
        if config.get('enable_user_nick', 'true') != 'false':
            self.xmpp.add_event_handler("user_nick_publish", self.on_nick_received)
        if config.get('enable_user_mood', 'true') != 'false':
            self.xmpp.add_event_handler("user_mood_publish", self.on_mood_event)
        if config.get('enable_user_activity', 'true') != 'false':
            self.xmpp.add_event_handler("user_activity_publish", self.on_activity_event)
        if config.get('enable_user_gaming', 'true') != 'false':
            self.xmpp.add_event_handler("user_gaming_publish", self.on_gaming_event)

        self.initial_joins = []

        self.timed_events = set()

        self.connected_events = {}

        self.pending_invites = {}

        # a dict of the form {'config_option': [list, of, callbacks]}
        # Whenever a configuration option is changed (using /set or by
        # reloading a new config using a signal), all the associated
        # callbacks are triggered.
        # Use Core.add_configuration_handler("option", callback) to add a
        # handler
        # Note that the callback will be called when it’s changed in the global section, OR
        # in a special section.
        # As a special case, handlers can be associated with the empty
        # string option (""), they will be called for every option change
        # The callback takes two argument: the config option, and the new
        # value
        self.configuration_change_handlers = {"": []}
        self.add_configuration_handler("create_gaps", self.on_gaps_config_change)
        self.add_configuration_handler("plugins_dir", self.on_plugins_dir_config_change)
        self.add_configuration_handler("plugins_conf_dir", self.on_plugins_conf_dir_config_change)
        self.add_configuration_handler("connection_timeout_delay", self.xmpp.set_keepalive_values)
        self.add_configuration_handler("connection_check_interval", self.xmpp.set_keepalive_values)
        self.add_configuration_handler("themes_dir", theming.update_themes_dir)
        self.add_configuration_handler("", self.on_any_config_change)

    def on_any_config_change(self, option, value):
        """
        Update the roster, in case a roster option changed.
        """
        roster.modified()

    def add_configuration_handler(self, option, callback):
        """
        Add a callback, associated with the given option. It will be called
        each time the configuration option is changed using /set or by
        reloading the configuration with a signal
        """
        if option not in self.configuration_change_handlers:
            self.configuration_change_handlers[option] = []
        self.configuration_change_handlers[option].append(callback)

    def trigger_configuration_change(self, option, value):
        """
        Triggers all the handlers associated with the given configuration
        option
        """
        # First call the callbacks associated with any configuration change
        for callback in self.configuration_change_handlers[""]:
            callback(option, value)
        # and then the callbacks associated with this specific option, if
        # any
        if option not in self.configuration_change_handlers:
            return
        for callback in self.configuration_change_handlers[option]:
            callback(option, value)

    def on_gaps_config_change(self, option, value):
        """
        Called when the option create_gaps is changed.
        Remove all gaptabs if switching from gaps to nogaps.
        """
        if value.lower() == "false":
            self.tabs = list(filter(lambda x: bool(x), self.tabs))

    def on_plugins_dir_config_change(self, option, value):
        """
        Called when the plugins_dir option is changed
        """
        path = os.path.expanduser(value)
        self.plugin_manager.on_plugins_dir_change(path)

    def on_plugins_conf_dir_config_change(self, option, value):
        """
        Called when the plugins_conf_dir option is changed
        """
        path = os.path.expanduser(value)
        self.plugin_manager.on_plugins_conf_dir_change(path)

    def sigusr_handler(self, num, stack):
        """
        Handle SIGUSR1 (10)
        When caught, reload all the possible files.
        """
        log.debug("SIGUSR1 caught, reloading the files…")
        # reload all log files
        log.debug("Reloading the log files…")
        logger.reload_all()
        log.debug("Log files reloaded.")
        # reload the theme
        log.debug("Reloading the theme…")
        self.command_theme("")
        log.debug("Theme reloaded.")
        # reload the config from the disk
        log.debug("Reloading the config…")
        # Copy the old config in a dict
        old_config = config.to_dict()
        config.read_file(config.file_name)
        # Compare old and current config, to trigger the callbacks of all
        # modified options
        for section in config.sections():
            old_section = old_config.get(section, {})
            for option in config.options(section):
                old_value = old_section.get(option)
                new_value = config.get(option, "", section)
                if new_value != old_value:
                    self.trigger_configuration_change(option, new_value)
        log.debug("Config reloaded.")
        # in case some roster options have changed
        roster.modified()

    def exit_from_signal(self, *args, **kwargs):
        """
        Quit when receiving SIGHUP or SIGTERM

        do not save the config because it is not a normal exit
        (and only roster UI things are not yet saved)
        """
        log.debug("Either SIGHUP or SIGTERM received. Exiting…")
        if config.get('enable_user_mood', 'true') != 'false':
            self.xmpp.plugin['xep_0107'].stop(block=False)
        if config.get('enable_user_activity', 'true') != 'false':
            self.xmpp.plugin['xep_0108'].stop(block=False)
        if config.get('enable_user_gaming', 'true') != 'false':
            self.xmpp.plugin['xep_0196'].stop(block=False)
        self.plugin_manager.disable_plugins()
        self.disconnect('')
        self.running = False
        try:
            self.reset_curses()
        except: # too bad
            pass
        sys.exit()

    def autoload_plugins(self):
        """
        Load the plugins on startup.
        """
        plugins = config.get('plugins_autoload', '')
        if ':' in plugins:
            for plugin in plugins.split(':'):
                self.plugin_manager.load(plugin)
        else:
            for plugin in plugins.split():
                self.plugin_manager.load(plugin)
        self.plugins_autoloaded = True

    def start(self):
        """
        Init curses, create the first tab, etc
        """
        self.stdscr = curses.initscr()
        self.init_curses(self.stdscr)
        self.call_for_resize()
        default_tab = tabs.RosterInfoTab()
        default_tab.on_gain_focus()
        self.tabs.append(default_tab)
        self.information(_('Welcome to poezio!'))
        if firstrun:
            self.information(_(
                'It seems that it is the first time you start poezio.\n'
                'The online help is here http://poezio.eu/doc/en/\n'
                'No room is joined by default, but you can join poezio’s chatroom '
                '(with /join poezio@muc.poezio.eu), where you can ask for help or tell us how great it is.'
            ), 'Help')
        self.refresh_window()

    def on_exception(self, typ, value, trace):
        """
        When an exception is raised, just reset curses and call
        the original exception handler (will nicely print the traceback)
        """
        try:
            self.reset_curses()
        except:
            pass
        sys.__excepthook__(typ, value, trace)

    def main_loop(self):
        """
        main loop waiting for the user to press a key
        """
        def replace_line_breaks(key):
            if key == '^J':
                return '\n'
            return key
        def separate_chars_from_bindings(char_list):
            """
            returns a list of lists. For example if you give
            ['a', 'b', 'KEY_BACKSPACE', 'n', 'u'], this function returns
            [['a', 'b'], ['KEY_BACKSPACE'], ['n', 'u']]

            This way, in case of lag (for example), we handle the typed text
            by “batch” as much as possible (instead of one char at a time,
            which implies a refresh after each char, which is very slow),
            but we still handle the special chars (backspaces, arrows,
            ctrl+x ou alt+x, etc) one by one, which avoids the issue of
            printing them OR ignoring them in that case.  This should
            resolve the “my ^W are ignored when I lag ;(”.
            """
            res = []
            current = []
            for char in char_list:
                assert(len(char) > 0)
                # Transform that stupid char into what we actually meant
                if char == '\x1f':
                    char = '^/'
                if len(char) == 1:
                    current.append(char)
                else:
                    # special case for the ^I key, it’s considered as \t
                    # only when pasting some text, otherwise that’s the ^I
                    # (or M-i) key, which stands for completion by default.
                    if char == '^I' and len(char_list) != 1:
                        current.append('\t')
                        continue
                    if current:
                        res.append(current)
                        current = []
                    res.append([char])
            if current:
                res.append(current)
            return res

        while self.running:
            big_char_list = [replace_key_with_bound(key)\
                             for key in self.read_keyboard()]
            # whether to refresh after ALL keys have been handled
            for char_list in separate_chars_from_bindings(big_char_list):
                if self.paused:
                    self.current_tab().input.do_command(char_list[0])
                    self.current_tab().input.prompt()
                    self.event.set()
                    continue
                # Special case for M-x where x is a number
                if len(char_list) == 1:
                    char = char_list[0]
                    if char.startswith('M-') and len(char) == 3:
                        try:
                            nb = int(char[2])
                        except ValueError:
                            pass
                        else:
                            if self.current_tab().nb == nb:
                                self.go_to_previous_tab()
                            else:
                                self.command_win('%d' % nb)
                        # search for keyboard shortcut
                    func = self.key_func.get(char, None)
                    if func:
                        func()
                    else:
                        res = self.do_command(replace_line_breaks(char), False)
                else:
                    self.do_command(''.join(char_list), True)
            self.doupdate()

    def save_config(self):
        """
        Save config in the file just before exit
        """
        if not roster.save_to_config_file() or \
                not config.silent_set('info_win_height', self.information_win_size, 'var'):
            self.information(_('Unable to write in the config file'), 'Error')

    def on_roster_enter_key(self, roster_row):
        """
        when enter is pressed on the roster window
        """
        if isinstance(roster_row, Contact):
            if not self.get_conversation_by_jid(roster_row.bare_jid, False):
                self.open_conversation_window(roster_row.bare_jid)
            else:
                self.focus_tab_named(roster_row.bare_jid)
        if isinstance(roster_row, Resource):
            if not self.get_conversation_by_jid(roster_row.jid, False):
                self.open_conversation_window(roster_row.jid)
            else:
                self.focus_tab_named(roster_row.jid)
        self.refresh_window()

    def get_conversation_messages(self):
        """
        Returns a list of all the messages in the current chat.
        If the current tab is not a ChatTab, returns None.

        Messages are namedtuples of the form
        ('txt nick_color time str_time nickname user')
        """
        if not isinstance(self.current_tab(), tabs.ChatTab):
            return None
        return self.current_tab().get_conversation_messages()

    def insert_input_text(self, text):
        """
        Insert the given text into the current input
        """
        self.do_command(text, True)


##################### Anything related to command execution ###################

    def execute(self, line):
        """
        Execute the /command or just send the line on the current room
        """
        if line == "":
            return
        if line.startswith('/'):
            command = line.strip()[:].split()[0][1:]
            arg = line[2+len(command):] # jump the '/' and the ' '
            # example. on "/link 0 open", command = "link" and arg = "0 open"
            if command in self.commands:
                func = self.commands[command][0]
                func(arg)
                return
            else:
                self.information(_("Unknown command (%s)") % (command), _('Error'))

    def exec_command(self, command):
        """
        Execute an external command on the local or a remote machine,
        depending on the conf. For example, to open a link in a browser, do
        exec_command(["firefox", "http://poezio.eu"]), and this will call
        the command on the correct computer.

        The command argument is a list of strings, not quoted or escaped in
        any way. The escaping is done here if needed.

        The remote execution is done
        by writing the command on a fifo.  That fifo has to be on the
        machine where poezio is running, and accessible (through sshfs for
        example) from the local machine (where poezio is not running). A
        very simple daemon (daemon.py) reads on that fifo, and executes any
        command that is read in it. Since we can only write strings to that
        fifo, each argument has to be pipes.quote()d. That way the
        shlex.split on the reading-side of the daemon will be safe.

        You cannot use a real command line with pipes, redirections etc, but
        this function supports a simple case redirection to file: if the
        before-last argument of the command is ">" or ">>", then the last
        argument is considered to be a filename where the command stdout
        will be written. For example you can do exec_command(["echo",
        "coucou les amis coucou coucou", ">", "output.txt"]) and this will
        work. If you try to do anything else, your |, [, <<, etc will be
        interpreted as normal command arguments, not shell special tokens.
        """
        if config.get('exec_remote', 'false') == 'true':
            # We just write the command in the fifo
            if not self.remote_fifo:
                try:
                    self.remote_fifo = Fifo(os.path.join(config.get('remote_fifo_path', './'), 'poezio.fifo'), 'w')
                except (OSError, IOError) as e:
                    log.error('Could not open the fifo for writing (%s)',
                            os.path.join(config.get('remote_fifo_path', './'), 'poezio.fifo'),
                            exc_info=True)
                    self.information('Could not open fifo file for writing: %s' % (e,), 'Error')
                    return
            command_str = ' '.join([pipes.quote(arg.replace('\n', ' ')) for arg in command]) + '\n'
            try:
                self.remote_fifo.write(command_str)
            except (IOError) as e:
                log.error('Could not write in the fifo (%s): %s',
                            os.path.join(config.get('remote_fifo_path', './'), 'poezio.fifo'),
                            repr(command),
                            exc_info=True)
                self.information('Could not execute %s: %s' % (command, e,), 'Error')
                self.remote_fifo = None
        else:
            e = Executor(command)
            try:
                e.start()
            except ValueError as e:
                log.error('Could not execute command (%s)', repr(command), exc_info=True)
                self.information('%s' % (e,), 'Error')


    def do_command(self, key, raw):
        if not key:
            return
        return self.current_tab().on_input(key, raw)


    def try_execute(self, line):
        """
        Try to execute a command in the current tab
        """
        line = '/' + line
        try:
            self.current_tab().execute_command(line)
        except:
            log.error('Execute failed (%s)', line, exc_info=True)


########################## TImed Events #######################################

    def remove_timed_event(self, event):
        """Remove an existing timed event"""
        if event and event in self.timed_events:
            self.timed_events.remove(event)

    def add_timed_event(self, event):
        """Add a new timed event"""
        self.timed_events.add(event)

    def check_timed_events(self):
        """Check for the execution of timed events"""
        now = datetime.now()
        for event in self.timed_events:
            if event.has_timed_out(now):
                res = event()
                if not res:
                    self.timed_events.remove(event)
                    break


####################### XMPP-related actions ##################################

    def get_status(self):
        """
        Get the last status that was previously set
        """
        return self.status

    def set_status(self, pres, msg):
        """
        Set our current status so we can remember
        it and use it back when needed (for example to display it
        or to use it when joining a new muc)
        """
        self.status = Status(show=pres, message=msg)
        if config.get('save_status', 'true').lower() != 'false':
            if not config.silent_set('status', pres if pres else '') or \
                    not config.silent_set('status_message', msg.replace('\n', '|') if msg else ''):
                self.information(_('Unable to write in the config file'), 'Error')

    def get_bookmark_nickname(self, room_name):
        """
        Returns the nickname associated with a bookmark
        or the default nickname
        """
        bm = bookmark.get_by_jid(room_name)
        if bm:
            return bm.nick
        return self.own_nick

    def disconnect(self, msg='', reconnect=False):
        """
        Disconnect from remote server and correctly set the states of all
        parts of the client (for example, set the MucTabs as not joined, etc)
        """
        msg = msg or ''
        for tab in self.tabs:
            if isinstance(tab, tabs.MucTab):
                tab.command_part(msg)
        self.xmpp.disconnect()
        if reconnect:
            self.xmpp.start()

    def send_message(self, msg):
        """
        Function to use in plugins to send a message in the current conversation.
        Returns False if the current tab is not a conversation tab
        """
        if not isinstance(self.current_tab(), tabs.ChatTab):
            return False
        self.current_tab().command_say(msg)
        return True

    def get_error_message(self, stanza, deprecated=False):
        """
        Takes a stanza of the form <message type='error'><error/></message>
        and return a well formed string containing the error informations
        """
        sender = stanza.attrib['from']
        msg = stanza['error']['type']
        condition = stanza['error']['condition']
        code = stanza['error']['code']
        body = stanza['error']['text']
        if not body:
            if deprecated:
                if code in DEPRECATED_ERRORS:
                    body = DEPRECATED_ERRORS[code]
                else:
                    body = condition or _('Unknown error')
            else:
                if code in ERROR_AND_STATUS_CODES:
                    body = ERROR_AND_STATUS_CODES[code]
                else:
                    body = condition or _('Unknown error')
        if code:
            message = _('%(from)s: %(code)s - %(msg)s: %(body)s') % {'from':sender, 'msg':msg, 'body':body, 'code':code}
        else:
            message = _('%(from)s: %(msg)s: %(body)s') % {'from':sender, 'msg':msg, 'body':body}
        return message


####################### Tab logic-related things ##############################

    ### Tab getters ###

    def current_tab(self):
        """
        returns the current room, the one we are viewing
        """
        self.current_tab_nb = self.current_tab_nb
        return self.tabs[self.current_tab_nb]

    def get_conversation_by_jid(self, jid, create=True, fallback_barejid=True):
        """
        From a JID, get the tab containing the conversation with it.
        If none already exist, and create is "True", we create it
        and return it. Otherwise, we return None.

        If fallback_barejid is True, then this method will seek other
        tabs with the same barejid, instead of searching only by fulljid.
        """
        jid = safeJID(jid)
        # We first check if we have a static conversation opened with this precise resource
        conversation = self.get_tab_by_name(jid.full, tabs.StaticConversationTab)
        if jid.bare == jid.full and not conversation:
            conversation = self.get_tab_by_name(jid.full, tabs.DynamicConversationTab)

        if not conversation and fallback_barejid:
            # If not, we search for a conversation with the bare jid
            conversation = self.get_tab_by_name(jid.bare, tabs.DynamicConversationTab)
            if not conversation:
                if create:
                    # We create a dynamic conversation with the bare Jid if
                    # nothing was found (and we lock it to the resource
                    # later)
                    conversation = self.open_conversation_window(jid.bare, False)
                else:
                    conversation = None
        return conversation

    def get_tab_by_name(self, name, typ=None):
        """
        Get the tab with the given name.
        If typ is provided, return a tab of this type only
        """
        for tab in self.tabs:
            if tab.get_name() == name:
                if (typ and isinstance(tab, typ)) or\
                        not typ:
                    return tab
        return None

    def get_tab_by_number(self, number):
        if 0 <= number < len(self.tabs):
            return self.tabs[number]
        return None

    def add_tab(self, new_tab, focus=False):
        """
        Appends the new_tab in the tab list and
        focus it if focus==True
        """
        self.tabs.append(new_tab)
        if focus:
            self.command_win("%s" % new_tab.nb)

    def insert_tab_nogaps(self, old_pos, new_pos):
        """
        Move tabs without creating gaps
        old_pos: old position of the tab
        new_pos: desired position of the tab
        """
        tab = self.tabs[old_pos]
        if new_pos < old_pos:
            self.tabs.pop(old_pos)
            self.tabs.insert(new_pos, tab)
        elif new_pos > old_pos:
            self.tabs.insert(new_pos, tab)
            self.tabs.remove(tab)
        else:
            return False
        return True

    def insert_tab_gaps(self, old_pos, new_pos):
        """
        Move tabs and create gaps in the eventual remaining space
        old_pos: old position of the tab
        new_pos: desired position of the tab
        """
        tab = self.tabs[old_pos]
        target = None if new_pos >= len(self.tabs) else self.tabs[new_pos]
        if not target:
            if new_pos < len(self.tabs):
                self.tabs[new_pos], self.tabs[old_pos] = self.tabs[old_pos], tabs.GapTab()
            else:
                self.tabs.append(self.tabs[old_pos])
                self.tabs[old_pos] = tabs.GapTab()
        else:
            if new_pos > old_pos:
                self.tabs.insert(new_pos, tab)
                self.tabs[old_pos] = tabs.GapTab()
            elif new_pos < old_pos:
                self.tabs[old_pos] = tabs.GapTab()
                self.tabs.insert(new_pos, tab)
            else:
                return False
            i = self.tabs.index(tab)
            done = False
            # Remove the first Gap on the right in the list
            # in order to prevent global shifts when there is empty space
            while not done:
                i += 1
                if i >= len(self.tabs):
                    done = True
                elif not self.tabs[i]:
                    self.tabs.pop(i)
                    done = True
        # Remove the trailing gaps
        i = len(self.tabs) - 1
        while isinstance(self.tabs[i], tabs.GapTab):
            self.tabs.pop()
            i -= 1
        return True

    def insert_tab(self, old_pos, new_pos=99999):
        """
        Insert a tab at a position, changing the number of the following tabs
        returns False if it could not move the tab, True otherwise
        """
        if old_pos <= 0 or old_pos >= len(self.tabs):
            return False
        elif new_pos <= 0:
            return False
        elif new_pos ==old_pos:
            return False
        elif not self.tabs[old_pos]:
            return False
        if config.get('create_gaps', 'false').lower() == 'true':
            return self.insert_tab_gaps(old_pos, new_pos)
        return self.insert_tab_nogaps(old_pos, new_pos)

    ### Move actions (e.g. go to next room) ###

    def rotate_rooms_right(self, args=None):
        """
        rotate the rooms list to the right
        """
        self.current_tab().on_lose_focus()
        self.current_tab_nb += 1
        while not self.tabs[self.current_tab_nb]:
            self.current_tab_nb += 1
        self.current_tab().on_gain_focus()
        self.refresh_window()

    def rotate_rooms_left(self, args=None):
        """
        rotate the rooms list to the right
        """
        self.current_tab().on_lose_focus()
        self.current_tab_nb -= 1
        while not self.tabs[self.current_tab_nb]:
            self.current_tab_nb -= 1
        self.current_tab().on_gain_focus()
        self.refresh_window()

    def go_to_room_number(self):
        """
        Read 2 more chars and go to the tab
        with the given number
        """
        char = self.read_keyboard()[0]
        try:
            nb1 = int(char)
        except ValueError:
            return
        char = self.read_keyboard()[0]
        try:
            nb2 = int(char)
        except ValueError:
            return
        self.command_win('%s%s' % (nb1, nb2))

    def go_to_roster(self):
        self.command_win('0')

    def go_to_previous_tab(self):
        self.command_win('%s' % (self.previous_tab_nb,))

    def go_to_important_room(self):
        """
        Go to the next room with activity, in the order defined in the
        dict tabs.STATE_PRIORITY
        """
        # shortcut
        priority = tabs.STATE_PRIORITY
        tab_refs = {}
        # put all the active tabs in a dict of lists by state
        for tab in self.tabs:
            if not tab:
                continue
            if tab.state not in tab_refs:
                tab_refs[tab.state] = [tab]
            else:
                tab_refs[tab.state].append(tab)
        # sort the state by priority and remove those with negative priority
        states = sorted(tab_refs.keys(), key=(lambda x: priority.get(x, 0)), reverse=True)
        states = [state for state in states if priority.get(state, -1) >= 0]

        for state in states:
            for tab in tab_refs[state]:
                if tab.nb < self.current_tab_nb and tab_refs[state][-1].nb > self.current_tab_nb:
                    continue
                self.command_win('%s' % tab.nb)
                return
        return

    def focus_tab_named(self, tab_name, type_=None):
        """Returns True if it found a tab to focus on"""
        for tab in self.tabs:
            if tab.get_name() == tab_name:
                if (type_ and (isinstance(tab, type_))) or not type_:
                    self.command_win('%s' % (tab.nb,))
                return True
        return False

    @property
    def current_tab_nb(self):
        return self._current_tab_nb

    @current_tab_nb.setter
    def current_tab_nb(self, value):
        if value >= len(self.tabs):
            self._current_tab_nb = 0
        elif value < 0:
            self._current_tab_nb = len(self.tabs) - 1
        else:
            self._current_tab_nb = value

    ### Opening actions ###

    def open_conversation_window(self, jid, focus=True):
        """
        Open a new conversation tab and focus it if needed. If a resource is
        provided, we open a StaticConversationTab, else a
        DynamicConversationTab
        """
        if safeJID(jid).resource:
            new_tab = tabs.StaticConversationTab(jid)
        else:
            new_tab = tabs.DynamicConversationTab(jid)
        if not focus:
            new_tab.state = "private"
        self.add_tab(new_tab, focus)
        self.refresh_window()
        return new_tab

    def open_private_window(self, room_name, user_nick, focus=True):
        """
        Open a Private conversation in a MUC and focus if needed.
        """
        complete_jid = room_name+'/'+user_nick
        for tab in self.tabs: # if the room exists, focus it and return
            if isinstance(tab, tabs.PrivateTab):
                if tab.get_name() == complete_jid:
                    self.command_win('%s' % tab.nb)
                    return tab
        # create the new tab
        tab = self.get_tab_by_name(room_name, tabs.MucTab)
        if not tab:
            return None
        new_tab = tabs.PrivateTab(complete_jid, tab.own_nick)
        if hasattr(tab, 'directed_presence'):
            new_tab.directed_presence = tab.directed_presence
        if not focus:
            new_tab.state = "private"
        # insert it in the tabs
        self.add_tab(new_tab, focus)
        self.refresh_window()
        tab.privates.append(new_tab)
        return new_tab

    def open_new_room(self, room, nick, focus=True):
        """
        Open a new tab.MucTab containing a muc Room, using the specified nick
        """
        new_tab = tabs.MucTab(room, nick)
        self.add_tab(new_tab, focus)
        self.refresh_window()

    def open_new_form(self, form, on_cancel, on_send, **kwargs):
        """
        Open a new tab containing the form
        The callback are called with the completed form as parameter in
        addition with kwargs
        """
        form_tab = DataFormsTab(form, on_cancel, on_send, kwargs)
        self.add_tab(form_tab, True)

    ### Modifying actions ###
    def rename_private_tabs(self, room_name, old_nick, new_nick):
        """
        Call this method when someone changes his/her nick in a MUC, this updates
        the name of all the opened private conversations with him/her
        """
        tab = self.get_tab_by_name('%s/%s' % (room_name, old_nick), tabs.PrivateTab)
        if tab:
            tab.rename_user(old_nick, new_nick)
        self.on_user_rejoined_private_conversation(room_name, new_nick)

    def on_user_left_private_conversation(self, room_name, nick, status_message):
        """
        The user left the MUC: add a message in the associated private conversation
        """
        tab = self.get_tab_by_name('%s/%s' % (room_name, nick), tabs.PrivateTab)
        if tab:
            tab.user_left(status_message, nick)

    def on_user_rejoined_private_conversation(self, room_name, nick):
        """
        The user joined a MUC: add a message in the associated private conversation
        """
        tab = self.get_tab_by_name('%s/%s' % (room_name, nick), tabs.PrivateTab)
        if tab:
            tab.user_rejoined(nick)

    def disable_private_tabs(self, room_name, reason='\x195}You left the chatroom\x193}'):
        """
        Disable private tabs when leaving a room
        """
        for tab in self.tabs:
            if isinstance(tab, tabs.PrivateTab) and tab.get_name().startswith(room_name):
                tab.deactivate(reason=reason)

    def enable_private_tabs(self, room_name, reason='\x195}You joined the chatroom\x193}'):
        """
        Enable private tabs when joining a room
        """
        for tab in self.tabs:
            if tab.get_name().startswith(room_name) and isinstance(tab, tabs.PrivateTab):
                tab.activate(reason=reason)

    def on_user_changed_status_in_private(self, jid, msg):
        tab = self.get_tab_by_name(jid)
        if tab: # display the message in private
            tab.add_message(msg, typ=2)

    def close_tab(self, tab=None):
        """
        Close the given tab. If None, close the current one
        """
        tab = tab or self.current_tab()
        if isinstance(tab, tabs.RosterInfoTab):
            return              # The tab 0 should NEVER be closed
        del tab.key_func      # Remove self references
        del tab.commands      # and make the object collectable
        tab.on_close()
        nb = tab.nb
        if config.get('create_gaps', 'false').lower() == 'true':
            if nb >= len(self.tabs) - 1:
                self.tabs.remove(tab)
                nb -= 1
                while not self.tabs[nb]: # remove the trailing gaps
                    self.tabs.pop()
                    nb -= 1
            else:
                self.tabs[nb] = tabs.GapTab()
        else:
            self.tabs.remove(tab)
        if tab and tab.get_name() in logger.fds:
            logger.fds[tab.get_name()].close()
            log.debug("Log file for %s closed.", tab.get_name())
            del logger.fds[tab.get_name()]
        if self.current_tab_nb >= len(self.tabs):
            self.current_tab_nb = len(self.tabs) - 1
        while not self.tabs[self.current_tab_nb]:
            self.current_tab_nb -= 1
        self.current_tab().on_gain_focus()
        self.refresh_window()
        import gc
        gc.collect()
        log.debug('___ Referrers of closing tab:\n%s\n______', gc.get_referrers(tab))
        del tab

    def add_information_message_to_conversation_tab(self, jid, msg):
        """
        Search for a ConversationTab with the given jid (full or bare), if yes, add
        the given message to it
        """
        tab = self.get_tab_by_name(jid, tabs.ConversationTab)
        if tab:
            tab.add_message(msg, typ=2)
            if self.current_tab() is tab:
                self.refresh_window()


####################### Curses and ui-related stuff ###########################

    def doupdate(self):
        if not self.running or self.background is True:
            return
        curses.doupdate()

    def information(self, msg, typ=''):
        """
        Displays an informational message in the "Info" buffer
        """
        filter_messages = config.get('filter_info_messages', '').split(':')
        for words in filter_messages:
            if words and words in msg:
                log.debug('Did not show the message:\n\t%s> %s', typ, msg)
                return False
        colors = get_theme().INFO_COLORS
        color = colors.get(typ.lower(), colors.get('default', None))
        nb_lines = self.information_buffer.add_message(msg, nickname=typ, nick_color=color)
        if isinstance(self.current_tab(), tabs.RosterInfoTab):
            self.refresh_window()
        elif typ != '' and typ.lower() in config.get('information_buffer_popup_on',
                                           'error roster warning help info').split():
            popup_time = config.get('popup_time', 4) + (nb_lines - 1) * 2
            self.pop_information_win_up(nb_lines, popup_time)
        else:
            if self.information_win_size != 0:
                self.information_win.refresh()
                self.current_tab().input.refresh()
        return True

    def init_curses(self, stdscr):
        """
        ncurses initialization
        """
        self.background = False  # Bool to know if curses can draw
        # or be quiet while an other console app is running.
        curses.curs_set(1)
        curses.noecho()
        curses.nonl()
        curses.raw()
        stdscr.idlok(1)
        stdscr.keypad(1)
        curses.start_color()
        curses.use_default_colors()
        theming.reload_theme()
        curses.ungetch(" ")    # H4X: without this, the screen is
        stdscr.getkey()        # erased on the first "getkey()"

    def reset_curses(self):
        """
        Reset terminal capabilities to what they were before ncurses
        init
        """
        curses.echo()
        curses.nocbreak()
        curses.curs_set(1)
        curses.endwin()

    @property
    def informations(self):
        return self.information_buffer

    def refresh_window(self):
        """
        Refresh everything
        """
        self.current_tab().state = 'current'
        self.current_tab().refresh()
        self.doupdate()

    def refresh_tab_win(self):
        """
        Refresh the window containing the tab list
        """
        self.current_tab().refresh_tab_win()
        if self.current_tab().input:
            self.current_tab().input.refresh()
        self.doupdate()

    def scroll_page_down(self, args=None):
        """
        Scroll a page down, if possible.
        Returns True on success, None on failure.
        """
        if self.current_tab().on_scroll_down():
            self.refresh_window()
            return True

    def scroll_page_up(self, args=None):
        """
        Scroll a page up, if possible.
        Returns True on success, None on failure.
        """
        if self.current_tab().on_scroll_up():
            self.refresh_window()
            return True

    def scroll_line_up(self, args=None):
        """
        Scroll a line up, if possible.
        Returns True on success, None on failure.
        """
        if self.current_tab().on_line_up():
            self.refresh_window()
            return True

    def scroll_line_down(self, args=None):
        """
        Scroll a line down, if possible.
        Returns True on success, None on failure.
        """
        if self.current_tab().on_line_down():
            self.refresh_window()
            return True

    def scroll_half_up(self, args=None):
        """
        Scroll half a screen down, if possible.
        Returns True on success, None on failure.
        """
        if self.current_tab().on_half_scroll_up():
            self.refresh_window()
            return True

    def scroll_half_down(self, args=None):
        """
        Scroll half a screen down, if possible.
        Returns True on success, None on failure.
        """
        if self.current_tab().on_half_scroll_down():
            self.refresh_window()
            return True

    def grow_information_win(self, nb=1):
        if self.information_win_size >= self.current_tab().height -5 or \
                self.information_win_size+nb >= self.current_tab().height-4:
            return 0
        if self.information_win_size == 14:
            return 0
        self.information_win_size += nb
        if self.information_win_size > 14:
            nb = nb - (self.information_win_size - 14)
            self.information_win_size = 14
        self.resize_global_information_win()
        for tab in self.tabs:
            tab.on_info_win_size_changed()
        self.refresh_window()
        return nb

    def shrink_information_win(self, nb=1):
        if self.information_win_size == 0:
            return
        self.information_win_size -= nb
        if self.information_win_size < 0:
            self.information_win_size = 0
        self.resize_global_information_win()
        for tab in self.tabs:
            tab.on_info_win_size_changed()
        self.refresh_window()

    def scroll_info_up(self):
        self.information_win.scroll_up(self.information_win.height)
        if not isinstance(self.current_tab(), tabs.RosterInfoTab):
            self.information_win.refresh()
        else:
            info = self.current_tab().information_win
            info.scroll_up(info.height)
            self.refresh_window()

    def scroll_info_down(self):
        self.information_win.scroll_down(self.information_win.height)
        if not isinstance(self.current_tab(), tabs.RosterInfoTab):
            self.information_win.refresh()
        else:
            info = self.current_tab().information_win
            info.scroll_down(info.height)
            self.refresh_window()

    def pop_information_win_up(self, size, time):
        """
        Temporarly increase the size of the information win of size lines
        during time seconds.
        After that delay, the size will decrease from size lines.
        """
        if time <= 0 or size <= 0:
            return
        result = self.grow_information_win(size)
        timed_event = timed_events.DelayedEvent(time, self.shrink_information_win, result)
        self.add_timed_event(timed_event)
        self.refresh_window()

    def toggle_left_pane(self):
        """
        Enable/disable the left panel.
        """
        enabled = config.get('enable_vertical_tab_list', 'false')
        if not config.silent_set('enable_vertical_tab_list', 'false' if enabled == 'true' else 'true'):
            self.information(_('Unable to write in the config file'), 'Error')
        self.call_for_resize()

    def resize_global_information_win(self):
        """
        Resize the global_information_win only once at each resize.
        """
        with g_lock:
            self.information_win.resize(self.information_win_size, tabs.Tab.width,
                                        tabs.Tab.height - 1 - self.information_win_size - tabs.Tab.tab_win_height(), 0)

    def resize_global_info_bar(self):
        """
        Resize the GlobalInfoBar only once at each resize
        """
        with g_lock:
            self.tab_win.resize(1, tabs.Tab.width, tabs.Tab.height - 2, 0)
            if config.get('enable_vertical_tab_list', 'false') == 'true':
                height, width = self.stdscr.getmaxyx()
                truncated_win = self.stdscr.subwin(height, config.get('vertical_tab_list_size', 20), 0, 0)
                self.left_tab_win = windows.VerticalGlobalInfoBar(truncated_win)
            else:
                self.left_tab_win = None

    def add_message_to_text_buffer(self, buff, txt, time=None, nickname=None, history=None):
        """
        Add the message to the room if possible, else, add it to the Info window
        (in the Info tab of the info window in the RosterTab)
        """
        if not buff:
            self.information('Trying to add a message in no room: %s' % txt, 'Error')
        else:
            buff.add_message(txt, time, nickname, history=history)

    def full_screen_redraw(self):
        """
        Completely erase and redraw the screen
        """
        self.stdscr.clear()
        self.refresh_window()

    def call_for_resize(self):
        """
        Called when we want to resize the screen
        """
        # If we have the tabs list on the left, we just give a truncated
        # window to each Tab class, so the draw themself in the portion
        # of the screen that the can occupy, and we draw the tab list
        # on the left remaining space
        if config.get('enable_vertical_tab_list', 'false') == 'true':
            with g_lock:
                scr = self.stdscr.subwin(0, config.get('vertical_tab_list_size', 20))
        else:
            scr = self.stdscr
        tabs.Tab.resize(scr)
        self.resize_global_info_bar()
        self.resize_global_information_win()
        with g_lock:
            for tab in self.tabs:
                if config.get('lazy_resize', 'true') == 'true':
                    tab.need_resize = True
                else:
                    tab.resize()
            if self.tabs:
                self.full_screen_redraw()

    def read_keyboard(self):
        """
        Get the next keyboard key pressed and returns it.
        get_user_input() has a timeout: it returns None when the timeout
        occurs. In that case we do not return (we loop until we get
        a non-None value), but we check for timed events instead.
        """
        res = keyboard.get_user_input(self.stdscr)
        while res is None:
            self.check_timed_events()
            res = keyboard.get_user_input(self.stdscr)
        return res

    def escape_next_key(self):
        """
        Tell the Keyboard object that the next key pressed by the user
        should be escaped. See Keyboard.get_user_input
        """
        keyboard.escape_next_key()

####################### Commands and completions ##############################

    def register_command(self, name, func, *, desc='', shortdesc='', completion=None, usage=''):
        if name in self.commands:
            return
        if not desc and shortdesc:
            desc = shortdesc
        self.commands[name] = Command(func, desc, completion, shortdesc, usage)

    def command_help(self, arg):
        """
        /help <command_name>
        """
        args = arg.split()
        if not args:
            color = dump_tuple(get_theme().COLOR_HELP_COMMANDS)
            acc = []
            buff = ['Global commands:']
            for command in self.commands:
                if isinstance(self.commands[command], Command):
                    acc.append('  \x19%s}%s\x19o - %s' % (color, command, self.commands[command].short))
                else:
                    acc.append('  \x19%s}%s\x19o' % (color, command))
            acc = sorted(acc)
            buff.extend(acc)
            acc = []
            buff.append('Tab-specific commands:')
            commands = self.current_tab().commands
            for command in commands:
                if isinstance(commands[command], Command):
                    acc.append('  \x19%s}%s\x19o - %s' % (color, command, commands[command].short))
                else:
                    acc.append('  \x19%s}%s\x19o' % (color, command))
            acc = sorted(acc)
            buff.extend(acc)

            msg = '\n'.join(buff)
            msg += _("\nType /help <command_name> to know what each command does")
        if args:
            command = args[0].lstrip('/').strip()

            if command in self.current_tab().commands:
                tup = self.current_tab().commands[command]
            elif command in self.commands:
                tup = self.commands[command]
            else:
                self.information(_('Unknown command: %s') % command, 'Error')
                return
            if isinstance(tup, Command):
                msg = _('Usage: /%s %s\n' % (command, tup.usage))
                msg += tup.desc
            else:
                msg = tup[1]
        self.information(msg, 'Help')

    def completion_help(self, the_input):
        """Completion for /help."""
        commands = sorted(self.commands.keys()) + sorted(self.current_tab().commands.keys())
        return the_input.new_completion(commands, 1, quotify=False)

    def command_runkey(self, arg):
        """
        /runkey <key>
        """
        def replace_line_breaks(key):
            if key == '^J':
                return '\n'
            return key
        char = arg.strip()
        func = self.key_func.get(char, None)
        if func:
            func()
        else:
            res = self.do_command(replace_line_breaks(char), False)
            if res:
                self.refresh_window()

    def completion_runkey(self, the_input):
        """
        Completion for /runkey
        """
        list_ = []
        list_.extend(self.key_func.keys())
        list_.extend(self.current_tab().key_func.keys())
        return the_input.new_completion(list_, 1, quotify=False)

    def command_status(self, arg):
        """
        /status <status> [msg]
        """
        args = common.shell_split(arg)
        if len(args) < 1:
            return
        if not args[0] in possible_show.keys():
            self.command_help('status')
            return
        show = possible_show[args[0]]
        if len(args) == 2:
            msg = args[1]
        else:
            msg = None
        pres = self.xmpp.make_presence()
        if msg:
            pres['status'] = msg
        pres['type'] = show
        self.events.trigger('send_normal_presence', pres)
        pres.send()
        current = self.current_tab()
        if isinstance(current, tabs.MucTab) and current.joined and show in ('away', 'xa'):
            current.send_chat_state('inactive')
        for tab in self.tabs:
            if isinstance(tab, tabs.MucTab) and tab.joined:
                muc.change_show(self.xmpp, tab.name, tab.own_nick, show, msg)
            if hasattr(tab, 'directed_presence'):
                del tab.directed_presence
        self.set_status(show, msg)
        if isinstance(current, tabs.MucTab) and current.joined and show not in ('away', 'xa'):
            current.send_chat_state('active')

    def completion_status(self, the_input):
        """
        Completion of /status
        """
        if the_input.get_argument_position() == 1:
            return the_input.new_completion([status for status in possible_show], 1, ' ', quotify=False)

    def command_presence(self, arg):
        """
        /presence <JID> [type] [status]
        """
        args = common.shell_split(arg)
        if len(args) == 1:
            jid, type, status = args[0], None, None
        elif len(args) == 2:
            jid, type, status = args[0], args[1], None
        elif len(args) == 3:
            jid, type, status = args[0], args[1], args[2]
        else:
            return
        if jid == '.' and isinstance(self.current_tab(), tabs.ChatTab):
            jid = self.current_tab().get_name()
        if type == 'available':
            type = None
        try:
            pres = self.xmpp.make_presence(pto=jid, ptype=type, pstatus=status)
            self.events.trigger('send_normal_presence', pres)
            pres.send()
        except:
            self.information(_('Could not send directed presence'), 'Error')
            log.debug('Could not send directed presence to %s', jid, exc_info=True)
            return
        tab = self.get_tab_by_name(jid)
        if tab:
            if type in ('xa', 'away'):
                tab.directed_presence = False
                chatstate = 'inactive'
            else:
                tab.directed_presence = True
                chatstate = 'active'
            if tab == self.current_tab():
                tab.send_chat_state(chatstate, True)
            if isinstance(tab, tabs.MucTab):
                for private in tab.privates:
                    private.directed_presence = tab.directed_presence
                if self.current_tab() in tab.privates:
                    self.current_tab().send_chat_state(chatstate, True)

    def completion_presence(self, the_input):
        """
        Completion of /presence
        """
        arg = the_input.get_argument_position()
        if arg == 1:
            return the_input.auto_completion([jid for jid in roster.jids()], '', quotify=True)
        elif arg == 2:
            return the_input.auto_completion([status for status in possible_show], '', quotify=True)

    def command_theme(self, arg=''):
        """/theme <theme name>"""
        args = arg.split()
        if args:
            self.command_set('theme %s' % (args[0],))
        warning = theming.reload_theme()
        if warning:
            self.information(warning, 'Warning')
        self.refresh_window()

    def completion_theme(self, the_input):
        """ Completion for /theme"""
        themes_dir = config.get('themes_dir', '')
        themes_dir = themes_dir or\
        os.path.join(os.environ.get('XDG_DATA_HOME') or\
                         os.path.join(os.environ.get('HOME'), '.local', 'share'),
                     'poezio', 'themes')
        themes_dir = os.path.expanduser(themes_dir)
        try:
            names = os.listdir(themes_dir)
        except OSError as e:
            log.error('Completion for /theme failed', exc_info=True)
            return
        theme_files = [name[:-3] for name in names if name.endswith('.py')]
        if not 'default' in theme_files:
            theme_files.append('default')
        return the_input.new_completion(theme_files, 1, '', quotify=False)

    def command_win(self, arg):
        """
        /win <number>
        """
        arg = arg.strip()
        if not arg:
            self.command_help('win')
            return
        try:
            nb = int(arg.split()[0])
        except ValueError:
            nb = arg
        if self.current_tab_nb == nb:
            return
        self.previous_tab_nb = self.current_tab_nb
        old_tab = self.current_tab()
        if isinstance(nb, int):
            if 0 <= nb < len(self.tabs):
                if not self.tabs[nb]:
                    return
                self.current_tab_nb = nb
        else:
            matchs = []
            for tab in self.tabs:
                for name in tab.matching_names():
                    if nb.lower() in name[1].lower():
                        matchs.append((name[0], tab))
                        self.current_tab_nb = tab.nb
            if not matchs:
                return
            tab = min(matchs, key=lambda m: m[0])[1]
            self.current_tab_nb = tab.nb
        old_tab.on_lose_focus()
        self.current_tab().on_gain_focus()
        self.refresh_window()

    def completion_win(self, the_input):
        """Completion for /win"""
        l = []
        for tab in self.tabs:
            l.extend(tab.matching_names())
        l = [i[1] for i in l]
        return the_input.new_completion(l, 1, '', quotify=False)

    def command_move_tab(self, arg):
        """
        /move_tab old_pos new_pos
        """
        args = common.shell_split(arg)
        current_tab = self.current_tab()
        if len(args) != 2:
            return self.command_help('move_tab')
        def get_nb_from_value(value):
            ref = None
            try:
                ref = int(value)
            except ValueError:
                old_tab = None
                for tab in self.tabs:
                    if not old_tab and value == tab.get_name():
                        old_tab = tab
                if not old_tab:
                    self.information("Tab %s does not exist" % args[0], "Error")
                    return None
                ref = old_tab.nb
            return ref
        old = get_nb_from_value(args[0])
        new = get_nb_from_value(args[1])
        if new is None or old is None:
            return self.information('Unable to move the tab.', 'Info')
        result = self.insert_tab(old, new)
        if not result:
            self.information('Unable to move the tab.', 'Info')
        else:
            self.current_tab_nb = self.tabs.index(current_tab)
        self.refresh_window()

    def completion_move_tab(self, the_input):
        """Completion for /move_tab"""
        n = the_input.get_argument_position(quoted=True)
        if n == 1:
            nodes = [tab.get_name() for tab in self.tabs if tab]
            nodes.remove('Roster')
            return the_input.new_completion(nodes, 1, ' ', quotify=True)

    def command_list(self, arg):
        """
        /list <server>
        Opens a MucListTab containing the list of the room in the specified server
        """
        arg = arg.split()
        if len(arg) > 1:
            return self.command_help('list')
        elif arg:
            server = safeJID(arg[0]).server
        else:
            if not isinstance(self.current_tab(), tabs.MucTab):
                return self.information('Please provide a server', 'Error')
            server = safeJID(self.current_tab().get_name()).server
        list_tab = tabs.MucListTab(server)
        self.add_tab(list_tab, True)
        self.xmpp.plugin['xep_0030'].get_items(jid=server, block=False, callback=list_tab.on_muc_list_item_received)

    def completion_list(self, the_input):
        """Completion for /list"""
        muc_serv_list = []
        for tab in self.tabs:   # TODO, also from an history
            if isinstance(tab, tabs.MucTab) and\
                    tab.get_name() not in muc_serv_list:
                muc_serv_list.append(safeJID(tab.get_name()).server)
        if muc_serv_list:
            return the_input.new_completion(muc_serv_list, 1, quotify=False)

    def command_version(self, arg):
        """
        /version <jid>
        """
        def callback(res):
            if not res:
                return self.information('Could not get the software version from %s' % (jid,), 'Warning')
            version = '%s is running %s version %s on %s' % (jid,
                                                             res.get('name') or _('an unknown software'),
                                                             res.get('version') or _('unknown'),
                                                             res.get('os') or _('an unknown platform'))
            self.information(version, 'Info')

        args = common.shell_split(arg)
        if len(args) < 1:
            return self.command_help('version')
        jid = safeJID(args[0])
        if jid.resource or jid not in roster:
            fixes.get_version(self.xmpp, jid, callback=callback)
        elif jid in roster:
            for resource in roster[jid].resources:
                fixes.get_version(self.xmpp, resource.jid, callback=callback)
            else:
                fixes.get_version(self.xmpp, jid, callback=callback)

    def completion_version(self, the_input):
        """Completion for /version"""
        n = the_input.get_argument_position(quoted=True)
        if n >= 2:
            return
        comp = reduce(lambda x, y: x + [i.jid for i in y], (roster[jid].resources for jid in roster.jids() if len(roster[jid])), [])
        return the_input.new_completion(sorted(comp), 1, '', quotify=True)

    def command_join(self, arg, histo_length=None):
        """
        /join [room][/nick] [password]
        """
        args = common.shell_split(arg)
        password = None
        if len(args) == 0:
            tab = self.current_tab()
            if not isinstance(tab, tabs.MucTab) and not isinstance(tab, tabs.PrivateTab):
                return
            room = safeJID(tab.get_name()).bare
            nick = tab.own_nick
        else:
            if args[0].startswith('@'): # we try to join a server directly
                server_root = True
                info = safeJID(args[0][1:])
            else:
                info = safeJID(args[0])
                server_root = False
            if info == '' and len(args[0]) > 1 and args[0][0] == '/':
                nick = args[0][1:]
            elif info.resource == '':
                default = os.environ.get('USER') if os.environ.get('USER') else 'poezio'
                nick = config.get('default_nick', '')
                if nick == '':
                    nick = default
            else:
                nick = info.resource
            if info.bare == '':   # happens with /join /nickname, which is OK
                tab = self.current_tab()
                if not isinstance(tab, tabs.MucTab):
                    return
                room = tab.get_name()
                if nick == '':
                    nick = tab.own_nick
            else:
                room = info.bare
                if room.find('@') == -1 and not server_root: # no server is provided, like "/join hello"
                    # use the server of the current room if available
                    # check if the current room's name has a server
                    if isinstance(self.current_tab(), tabs.MucTab) and\
                            self.current_tab().get_name().find('@') != -1:
                        room += '@%s' % safeJID(self.current_tab().get_name()).domain
                    else:
                        room = args[0]
        room = room.lower()
        if room in self.pending_invites:
            del self.pending_invites[room]
        tab = self.get_tab_by_name(room, tabs.MucTab)
        if len(args) == 2:       # a password is provided
            password = args[1]
        if tab and tab.joined:       # if we are already in the room
            self.focus_tab_named(tab.name)
            if tab.own_nick == nick:
                self.information('/join: Nothing to do.', 'Info')
            else:
                tab.own_nick = nick
                tab.command_cycle('')
            return

        if room.startswith('@'):
            room = room[1:]
        current_status = self.get_status()
        if not histo_length:
            histo_length= config.get('muc_history_length', 20)
            if histo_length == -1:
                histo_length= None
        if histo_length is not None:
            histo_length= str(histo_length)
        if password is None: # try to use a saved password
            password = config.get_by_tabname('password', None, room, fallback=False)
        if tab and not tab.joined:
            if tab.last_connection:
                delta = datetime.now() - tab.last_connection
                seconds = delta.seconds + delta.days * 24 * 3600 if tab.last_connection is not None else 0
                seconds = int(seconds)
            else:
                seconds = 0
            muc.join_groupchat(self, room, nick, password,
                               histo_length, current_status.message, current_status.show, seconds=seconds)
        if not tab:
            self.open_new_room(room, nick)
            muc.join_groupchat(self, room, nick, password,
                               histo_length, current_status.message, current_status.show)
        else:
            tab.own_nick = nick
            tab.users = []
        if tab and tab.joined:
            self.enable_private_tabs(room)
            tab.state = "normal"
            if tab == self.current_tab():
                tab.refresh()
                self.doupdate()

    def completion_join(self, the_input):
        """
        Completion for /join

        Try to complete the MUC JID:
            if only a resource is provided, complete with the default nick
            if only a server is provided, complete with the rooms from the
                disco#items of that server
            if only a nodepart is provided, complete with the servers of the
                current joined rooms
        """
        n = the_input.get_argument_position(quoted=True)
        args = common.shell_split(the_input.text)
        if n != 1:
            # we are not on the 1st argument of the command line
            return False
        if len(args) == 1:
            args.append('')
        jid = safeJID(args[1])
        if args[1].endswith('@') and not jid.user and not jid.server:
            jid.user = args[1][:-1]

        relevant_rooms = []
        relevant_rooms.extend(sorted(self.pending_invites.keys()))
        bookmarks = {str(elem.jid): False for elem in bookmark.bookmarks}
        for tab in self.tabs:
            if isinstance(tab, tabs.MucTab):
                name = tab.get_name()
                if name in bookmarks and not tab.joined:
                    bookmarks[name] = True
        relevant_rooms.extend(sorted(room[0] for room in bookmarks.items() if room[1]))

        if the_input.last_completion:
            return the_input.new_completion([], 1, quotify=True)

        if jid.server and not jid.user:
            # no room was given: complete the node
            try:
                response = self.xmpp.plugin['xep_0030'].get_items(jid=jid.server, block=True, timeout=1)
            except:
                log.error('/join completion: Unable to get the list of rooms for %s',
                        jid.server,
                        exc_info=True)
                response = None
            if response:
                items = response['disco_items'].get_items()
            else:
                return True
            items = sorted('%s/%s' % (tup[0], jid.resource) for tup in items)
            return the_input.new_completion(items, 1, quotify=True, override=True)
        elif jid.user:
            # we are writing the server: complete the server
            serv_list = []
            for tab in self.tabs:
                if isinstance(tab, tabs.MucTab) and tab.joined:
                    serv_list.append('%s@%s'% (jid.user, safeJID(tab.get_name()).host))
            serv_list.extend(relevant_rooms)
            return the_input.new_completion(serv_list, 1, quotify=True)
        elif args[1].startswith('/'):
            # we completing only a resource
            return the_input.new_completion(['/%s' % self.own_nick], 1, quotify=True)
        else:
            return the_input.new_completion(relevant_rooms, 1, quotify=True)
        return True

    def command_bookmark_local(self, arg=''):
        """
        /bookmark_local [room][/nick] [password]
        """
        args = common.shell_split(arg)
        nick = None
        password = None
        if len(args) == 0 and not isinstance(self.current_tab(), tabs.MucTab):
            return
        if len(args) == 0:
            tab = self.current_tab()
            roomname = tab.get_name()
            if tab.joined and tab.own_nick != self.own_nick:
                nick = tab.own_nick
        elif args[0] == '*':
            for tab in self.tabs:
                if isinstance(tab, tabs.MucTab):
                    b = bookmark.get_by_jid(tab.get_name())
                    if not b:
                        b = bookmark.Bookmark(tab.get_name(), autojoin=True, method="local")
                        bookmark.bookmarks.append(b)
                    else:
                        b.method = "local"
            bookmark.save_local()
            bookmark.save_remote(self.xmpp)
            self.information('Bookmarks added and saved.', 'Info')
            return
        else:
            info = safeJID(args[0])
            if info.resource != '':
                nick = info.resource
            roomname = info.bare
            if not roomname:
                if not isinstance(self.current_tab(), tabs.MucTab):
                    return
                roomname = self.current_tab().get_name()
            if len(args) > 1:
                password = args[1]

        bm = bookmark.get_by_jid(roomname)
        if not bm:
            bm = bookmark.Bookmark(jid=roomname)
            bookmark.bookmarks.append(bm)
            self.information('Bookmark added.', 'Info')
        else:
            self.information('Bookmark updated.', 'Info')
        if nick:
            bm.nick = nick
        bm.autojoin = True
        bm.password = password
        bm.method = "local"
        bookmark.save_local()
        self.information(_('Your local bookmarks are now: %s') %
                [b for b in bookmark.bookmarks if b.method == 'local'], 'Info')

    def completion_bookmark_local(self, the_input):
        """Completion for /bookmark_local"""
        n = the_input.get_argument_position(quoted=True)
        args = common.shell_split(the_input.text)

        if n >= 2:
            return
        if len(args) == 1:
            args.append('')
        jid = safeJID(args[1])

        if jid.server and (jid.resource or jid.full.endswith('/')):
            tab = self.get_tab_by_name(jid.bare, tabs.MucTab)
            nicks = [tab.own_nick] if tab else []
            default = os.environ.get('USER') if os.environ.get('USER') else 'poezio'
            nick = config.get('default_nick', '')
            if not nick:
                if not default in nicks:
                    nicks.append(default)
            else:
                if not nick in nicks:
                    nicks.append(nick)
            jids_list = ['%s/%s' % (jid.bare, nick) for nick in nicks]
            return the_input.new_completion(jids_list, 1, quotify=True)
        muc_list = [tab.get_name() for tab in self.tabs if isinstance(tab, tabs.MucTab)]
        muc_list.append('*')
        return the_input.new_completion(muc_list, 1, quotify=True)

    def command_bookmark(self, arg=''):
        """
        /bookmark [room][/nick] [autojoin] [password]
        """

        if config.get('use_remote_bookmarks', 'true').lower() == 'false':
            self.command_bookmark_local(arg)
            return
        args = common.shell_split(arg)
        nick = None
        if len(args) == 0 and not isinstance(self.current_tab(), tabs.MucTab):
            return
        if len(args) == 0:
            tab = self.current_tab()
            roomname = tab.get_name()
            if tab.joined:
                nick = tab.own_nick
            autojoin = True
            password = None
        elif args[0] == '*':
            if len(args) > 1:
                autojoin = False if args[1].lower() != 'true' else True
            else:
                autojoin = True
            for tab in self.tabs:
                if isinstance(tab, tabs.MucTab):
                    b = bookmark.get_by_jid(tab.get_name())
                    if not b:
                        b = bookmark.Bookmark(tab.get_name(), autojoin=autojoin,
                                method=bookmark.preferred)
                        bookmark.bookmarks.append(b)
                    else:
                        b.method = bookmark.preferred
            if bookmark.save_remote(self.xmpp, self):
                bookmark.save_local()
                self.information("Bookmarks added.", "Info")
            else:
                self.information("Could not add the bookmarks.", "Info")
            return
        else:
            info = safeJID(args[0])
            if info.resource != '':
                nick = info.resource
            roomname = info.bare
            if roomname == '':
                if not isinstance(self.current_tab(), tabs.MucTab):
                    return
                roomname = self.current_tab().get_name()
            if len(args) > 1:
                autojoin = False if args[1].lower() != 'true' else True
            else:
                autojoin = True
            if len(args) > 2:
                password = args[2]
            else:
                password = None
        bm = bookmark.get_by_jid(roomname)
        if not bm:
            bm = bookmark.Bookmark(roomname)
            bookmark.bookmarks.append(bm)
        bm.method = config.get('use_bookmarks_method', 'pep')
        if nick:
            bm.nick = nick
        if password:
            bm.password = password
        bm.autojoin = autojoin
        if bookmark.save_remote(self.xmpp):
            self.information('Bookmark added.', 'Info')
        self.information(_('Your remote bookmarks are now: %s') %
                [b for b in bookmark.bookmarks if b.method in ('pep', 'privatexml')], 'Info')

    def completion_bookmark(self, the_input):
        """Completion for /bookmark"""
        args = common.shell_split(the_input.text)
        n = the_input.get_argument_position(quoted=True)

        if n == 2:
            return the_input.new_completion(['true', 'false'], 2, quotify=True)
        if n >= 3:
            return

        if len(args) == 1:
            args.append('')
        jid = safeJID(args[1])

        if jid.server and (jid.resource or jid.full.endswith('/')):
            tab = self.get_tab_by_name(jid.bare, tabs.MucTab)
            nicks = [tab.own_nick] if tab else []
            default = os.environ.get('USER') if os.environ.get('USER') else 'poezio'
            nick = config.get('default_nick', '')
            if not nick:
                if not default in nicks:
                    nicks.append(default)
            else:
                if not nick in nicks:
                    nicks.append(nick)
            jids_list = ['%s/%s' % (jid.bare, nick) for nick in nicks]
            return the_input.new_completion(jids_list, 1, quotify=True)
        muc_list = [tab.get_name() for tab in self.tabs if isinstance(tab, tabs.MucTab)]
        muc_list.sort()
        muc_list.append('*')
        return the_input.new_completion(muc_list, 1, quotify=True)

    def command_bookmarks(self, arg=''):
        """/bookmarks"""
        self.information(_('Your remote bookmarks are: %s') %
                [b for b in bookmark.bookmarks if b.method in ('pep', 'privatexml')], 'Info')
        self.information(_('Your local bookmarks are: %s') %
                [b for b in bookmark.bookmarks if b.method is 'local'], 'Info')

    def command_remove_bookmark(self, arg=''):
        """/remove_bookmark [jid]"""
        args = common.shell_split(arg)
        if not args:
            tab = self.current_tab()
            if isinstance(tab, tabs.MucTab) and bookmark.get_by_jid(tab.get_name()):
                bookmark.remove(tab.get_name())
                bookmark.save(self.xmpp)
                if bookmark.save(self.xmpp):
                    self.information('Bookmark deleted', 'Info')
            else:
                self.information('No bookmark to remove', 'Info')
        else:
            if bookmark.get_by_jid(args[0]):
                bookmark.remove(args[0])
                if bookmark.save(self.xmpp):
                    self.information('Bookmark deleted', 'Info')

            else:
                self.information('No bookmark to remove', 'Info')

    def completion_remove_bookmark(self, the_input):
        """Completion for /remove_bookmark"""
        return the_input.new_completion([bm.jid for bm in bookmark.bookmarks], 1, quotify=False)

    def command_set(self, arg):
        """
        /set [module|][section] <option> <value>
        """
        args = common.shell_split(arg)
        if len(args) != 2 and len(args) != 3:
            self.command_help('set')
            return
        if len(args) == 2:
            option = args[0]
            value = args[1]
            info = config.set_and_save(option, value)
            self.trigger_configuration_change(option, value)
        elif len(args) == 3:
            if '|' in args[0]:
                plugin_name, section = args[0].split('|')[:2]
                if not section:
                    section = plugin_name
                option = args[1]
                value = args[2]
                if not plugin_name in self.plugin_manager.plugins:
                    return
                plugin = self.plugin_manager.plugins[plugin_name]
                info = plugin.config.set_and_save(option, value, section)
            else:
                section = args[0]
                option = args[1]
                value = args[2]
                info = config.set_and_save(option, value, section)
                self.trigger_configuration_change(option, value)
        self.call_for_resize()
        self.information(*info)

    def completion_set(self, the_input):
        """Completion for /set"""
        args = common.shell_split(the_input.text)
        n = the_input.get_argument_position(quoted=True)
        if n >= len(args):
            args.append('')
        if n == 1:
            if '|' in args[1]:
                plugin_name, section = args[1].split('|')[:2]
                if not plugin_name in self.plugin_manager.plugins:
                        return the_input.new_completion([], n, quotify=True)
                plugin = self.plugin_manager.plugins[plugin_name]
                end_list = ['%s|%s' % (plugin_name, section) for section in plugin.config.sections()]
            else:
                end_list = config.options('Poezio')
        elif n == 2:
            if '|' in args[1]:
                plugin_name, section = args[1].split('|')[:2]
                if not plugin_name in self.plugin_manager.plugins:
                        return the_input.auto_completion([''], n, quotify=True)
                plugin = self.plugin_manager.plugins[plugin_name]
                end_list = plugin.config.options(section or plugin_name)
            elif not config.has_option('Poezio', args[1]):
                if config.has_section(args[1]):
                    end_list = config.options(args[1])
                    end_list.append('')
                else:
                    end_list = []
            else:
                end_list = [config.get(args[1], ''), '']
        elif n == 3:
            if '|' in args[1]:
                plugin_name, section = args[1].split('|')[:2]
                if not plugin_name in self.plugin_manager.plugins:
                        return the_input.auto_completion([''], n, quotify=True)
                plugin = self.plugin_manager.plugins[plugin_name]
                end_list = [plugin.config.get(args[2], '', section or plugin_name), '']
            else:
                if not config.has_section(args[1]):
                    end_list = ['']
                else:
                    end_list = [config.get(args[2], '', args[1]), '']
        else:
            return
        return the_input.new_completion(end_list, n, quotify=True)

    def command_server_cycle(self, arg=''):
        """
        Do a /cycle on each room of the given server. If none, do it on the current tab
        """
        args = common.shell_split(arg)
        tab = self.current_tab()
        message = ""
        if len(args):
            domain = args[0]
            if len(args) > 1:
                message = args[1]
        else:
            if isinstance(tab, tabs.MucTab):
                domain = safeJID(tab.get_name()).domain
            else:
                self.information(_("No server specified"), "Error")
                return
        for tab in self.tabs:
            if isinstance(tab, tabs.MucTab) and tab.get_name().endswith(domain):
                if tab.joined:
                    muc.leave_groupchat(tab.core.xmpp, tab.get_name(), tab.own_nick, message)
                tab.joined = False
                if tab.get_name() == domain:
                    self.command_join('"@%s/%s"' %(tab.get_name(), tab.own_nick))
                else:
                    self.command_join('"%s/%s"' %(tab.get_name(), tab.own_nick))

    def completion_server_cycle(self, the_input):
        """Completion for /server_cycle"""
        serv_list = set()
        for tab in self.tabs:
            if isinstance(tab, tabs.MucTab):
                serv = safeJID(tab.get_name()).server
                serv_list.add(serv)
        return the_input.new_completion(sorted(serv_list), 1, ' ')

    def command_last_activity(self, arg):
        """
        /activity <jid>
        """
        def callback(iq):
            if iq['type'] != 'result':
                if iq['error']['type'] == 'auth':
                    self.information('You are not allowed to see the activity of this contact.', 'Error')
                else:
                    self.information('Error retrieving the activity', 'Error')
                return
            seconds = iq['last_activity']['seconds']
            status = iq['last_activity']['status']
            from_ = iq['from']
            if not safeJID(from_).user:
                msg = 'The uptime of %s is %s.' % (
                        from_,
                        common.parse_secs_to_str(seconds))
            else:
                msg = 'The last activity of %s was %s ago%s' % (
                    from_,
                    common.parse_secs_to_str(seconds),
                    (' and his/her last status was %s' % status) if status else '',)
            self.information(msg, 'Info')
        jid = safeJID(arg)
        if jid == '':
            return self.command_help('last_activity')
        self.xmpp.plugin['xep_0012'].get_last_activity(jid, block=False, callback=callback)

    def completion_last_activity(self, the_input):
            return the_input.new_completion([jid for jid in roster.jids()], 1, quotify=False)

    def command_mood(self, arg):
        """
        /mood [<mood> [text]]
        """
        args = common.shell_split(arg)
        if not args:
            return self.xmpp.plugin['xep_0107'].stop(block=False)
        mood = args[0]
        if mood not in pep.MOODS:
            return self.information('%s is not a correct value for a mood.' % mood, 'Error')
        if len(args) > 1:
            text = args[1]
        else:
            text = None
        self.xmpp.plugin['xep_0107'].publish_mood(mood, text, callback=dumb_callback, block=False)

    def completion_mood(self, the_input):
        """Completion for /mood"""
        n = the_input.get_argument_position(quoted=True)
        if n == 1:
            return the_input.new_completion(sorted(pep.MOODS.keys()), 1, quotify=True)

    def command_activity(self, arg):
        """
        /activity [<general> [specific] [text]]
        """
        args = common.shell_split(arg)
        length = len(args)
        if not length:
            return self.xmpp.plugin['xep_0108'].stop(block=False)
        general = args[0]
        if general not in pep.ACTIVITIES:
            return self.information('%s is not a correct value for an activity' % general, 'Error')
        specific = None
        text = None
        if length == 2:
            if args[1] in pep.ACTIVITIES[general]:
                specific = args[1]
            else:
                text = args[1]
        elif length == 3:
            specific = args[1]
            text = args[2]
        if specific and specific not in pep.ACTIVITIES[general]:
            return self.information('%s is not a correct value for an activity' % specific, 'Error')
        self.xmpp.plugin['xep_0108'].publish_activity(general, specific, text, callback=dumb_callback, block=False)

    def command_gaming(self, arg):
        """
        /gaming [<game name> [server address]]
        """
        args = common.shell_split(arg)
        if not args:
            return self.xmpp.plugin['xep_0196'].stop(block=False)
        name = args[0]
        if len(args) > 1:
            address = args[1]
        else:
            address = None
        return self.xmpp.plugin['xep_0196'].publish_gaming(name=name, server_address=address, callback=dumb_callback, block=False)

    def completion_activity(self, the_input):
        """Completion for /activity"""
        n = the_input.get_argument_position(quoted=True)
        args = common.shell_split(the_input.text)
        if n == 1:
            return the_input.new_completion(sorted(pep.ACTIVITIES.keys()), n, quotify=True)
        elif n == 2:
            if args[1] in pep.ACTIVITIES:
                l = list(pep.ACTIVITIES[args[1]])
                l.remove('category')
                l.sort()
                return the_input.new_completion(l, n, quotify=True)

    def command_invite(self, arg):
        """/invite <to> <room> [reason]"""
        args = common.shell_split(arg)
        if len(args) < 2:
            return
        reason = args[2] if len(args) > 2 else ''
        to = safeJID(args[0])
        room = safeJID(args[1])
        self.xmpp.plugin['xep_0045'].invite(room, str(to), reason)

    def completion_invite(self, the_input):
        """Completion for /invite"""
        n = the_input.get_argument_position(quoted=True)
        if n == 1:
            return the_input.new_completion(sorted(jid for jid in roster.jids()), n, quotify=True)
        elif n == 2:
            rooms = []
            for tab in self.tabs:
                if isinstance(tab, tabs.MucTab) and tab.joined:
                    rooms.append(tab.get_name())
            rooms.sort()
            return the_input.new_completion(rooms, n, '', quotify=True)

    def command_decline(self, arg):
        """/decline <room@server.tld> [reason]"""
        args = common.shell_split(arg)
        if not len(args):
            return
        jid = safeJID(args[0])
        if jid.bare not in self.pending_invites:
            return
        reason = args[1] if len(args) > 1 else ''
        del self.pending_invites[jid.bare]
        self.xmpp.plugin['xep_0045'].decline_invite(jid.bare, self.pending_invites[jid.bare], reason)

    def completion_decline(self, the_input):
        """Completion for /decline"""
        n = the_input.get_argument_position(quoted=True)
        if n == 1:
            return the_input.auto_completion(sorted(self.pending_invites.keys()), 1, '', quotify=True)

    ### Commands without a completion in this class ###

    def command_invitations(self, arg=''):
        """/invitations"""
        build = ""
        for invite in self.pending_invites:
            build += "%s by %s" % (invite, safeJID(self.pending_invites[invite]).bare)
        if self.pending_invites:
            build = "You are invited to the following rooms:\n" + build
        else:
            build = "You do not have any pending invitations."
        self.information(build, 'Info')

    def command_quit(self, arg=''):
        """
        /quit
        """
        if len(arg.strip()) != 0:
            msg = arg
        else:
            msg = None
        if config.get('enable_user_mood', 'true') != 'false':
            self.xmpp.plugin['xep_0107'].stop(block=False)
        if config.get('enable_user_activity', 'true') != 'false':
            self.xmpp.plugin['xep_0108'].stop(block=False)
        if config.get('enable_user_gaming', 'true') != 'false':
            self.xmpp.plugin['xep_0196'].stop(block=False)
        self.save_config()
        self.plugin_manager.disable_plugins()
        self.disconnect(msg)
        self.running = False
        self.reset_curses()
        sys.exit()

    def completion_bind(self, the_input):
        n = the_input.get_argument_position()
        if n == 1:
            args = [key for key in self.key_func if not key.startswith('_')]
        elif n == 2:
            args = [key for key in self.key_func]
        else:
            return

        return the_input.new_completion(args, n, '', quotify=False)


        return the_input

    def command_bind(self, arg):
        """
        Bind a key.
        """
        args = common.shell_split(arg)
        if len(args) < 1:
            return self.command_help('bind')
        elif len(args) < 2:
            args.append("")
        if not config.silent_set(args[0], args[1], section='bindings'):
            self.information(_('Unable to write in the config file'), 'Error')
        if args[1]:
            self.information('%s is now bound to %s' % (args[0], args[1]), 'Info')
        else:
            self.information('%s is now unbound' % args[0], 'Info')

    def command_pubsub(self, args):
        """
        Opens a pubsub browser on the given domain
        """
        args = common.shell_split(args)
        if len(args) != 1:
            return self.command_help('pubsub')
        domain = args[0]
        tab = self.get_tab_by_name('%s@@pubsubbrowser' % (domain,), pubsub.PubsubBrowserTab)
        if tab:
            self.command_win('%s' % tab.nb)
        else:
            new_tab = pubsub.PubsubBrowserTab(domain)
            self.add_tab(new_tab, True)
        self.refresh_window()

    def command_rawxml(self, arg):
        """
        /rawxml <xml stanza>
        """
        if not arg:
            return


        try:
            stanza = StanzaBase(self.xmpp, xml=ET.fromstring(arg))
            if stanza.xml.tag == 'iq' and \
                    stanza.xml.attrib.get('type') in ('get', 'set') and \
                    stanza.xml.attrib.get('id'):
                iq_id = stanza.xml.attrib.get('id')

                def iqfunc(iq):
                    self.information('%s' % iq, 'Iq')
                    self.xmpp.remove_handler('Iq %s' % iq_id)

                self.xmpp.register_handler(
                        Callback('Iq %s' % iq_id,
                            StanzaPath('iq@id=%s' % iq_id),
                            iqfunc
                            )
                        )
                log.debug('handler')
            log.debug('%s %s', stanza.xml.tag, stanza.xml.attrib)

            stanza.send()
        except:
            self.information(_('Could not send custom stanza'), 'Error')
            log.debug('/rawxml: Could not send custom stanza (%s)',
                    repr(arg),
                    exc_info=True)


    def command_load(self, arg):
        """
        /load <plugin>
        """
        args = arg.split()
        if len(args) != 1:
            self.command_help('load')
            return
        filename = args[0]
        self.plugin_manager.load(filename)

    def command_unload(self, arg):
        """
        /unload <plugin>
        """
        args = arg.split()
        if len(args) != 1:
            self.command_help('unload')
            return
        filename = args[0]
        self.plugin_manager.unload(filename)

    def command_plugins(self, arg=''):
        """
        /plugins
        """
        self.information("Plugins currently in use: %s" % repr(list(self.plugin_manager.plugins.keys())), 'Info')

    def command_message(self, arg):
        """
        /message <jid> [message]
        """
        args = common.shell_split(arg)
        if len(args) < 1:
            self.command_help('message')
            return
        jid = safeJID(args[0])
        if not jid.user and not jid.domain and not jid.resource:
            return self.information('Invalid JID.', 'Error')
        tab = self.get_conversation_by_jid(jid.full, False, fallback_barejid=False)
        if not tab:
            tab = self.open_conversation_window(jid.full, focus=True)
        else:
            self.focus_tab_named(tab.get_name())
        if len(args) > 1:
            tab.command_say(args[1])

    def completion_message(self, the_input):
        """Completion for /message"""
        n = the_input.get_argument_position(quoted=True)
        if n >= 2:
            return
        comp = reduce(lambda x, y: x + [i.jid for i in y], (roster[jid].resources for jid in roster.jids() if len(roster[jid])), [])
        comp = sorted(comp)
        bares = sorted(roster[contact].bare_jid for contact in roster.jids() if len(roster[contact]))
        off = sorted(jid for jid in roster.jids() if jid not in bares)
        comp = bares + comp + off
        return the_input.new_completion(comp, 1, '', quotify=True)

    def command_xml_tab(self, arg=''):
        """/xml_tab"""
        self.xml_tab = True
        xml_tab = self.focus_tab_named('XMLTab', tabs.XMLTab)
        if not xml_tab:
            tab = tabs.XMLTab()
            self.add_tab(tab, True)

    def command_self(self, arg=None):
        """
        /self
        """
        status = self.get_status()
        show, message = status.show, status.message
        nick = self.own_nick
        jid = self.xmpp.boundjid.full
        info = ('Your JID is %s\nYour current status is "%s" (%s)'
                '\nYour default nickname is %s\nYou are running poezio %s' % (
                jid,
                message if message else '',
                show if show else 'available',
                nick,
                config_opts.version))
        self.information(info, 'Info')

    def register_initial_commands(self):
        """
        Register the commands when poezio starts
        """
        self.register_command('help', self.command_help,
                usage=_('[command]'),
                shortdesc='\_o< KOIN KOIN KOIN',
                completion=self.completion_help)
        self.register_command('join', self.command_join,
                usage=_("[room_name][@server][/nick] [password]"),
                desc=_("Join the specified room. You can specify a nickname "
                    "after a slash (/). If no nickname is specified, you will"
                    " use the default_nick in the configuration file. You can"
                    " omit the room name: you will then join the room you\'re"
                    " looking at (useful if you were kicked). You can also "
                    "provide a room_name without specifying a server, the "
                    "server of the room you're currently in will be used. You"
                    " can also provide a password to join the room.\nExamples"
                    ":\n/join room@server.tld\n/join room@server.tld/John\n"
                    "/join room2\n/join /me_again\n/join\n/join room@server"
                    ".tld/my_nick password\n/join / password"),
                shortdesc=_('Join a room'),
                completion=self.completion_join)
        self.register_command('exit', self.command_quit,
                desc=_('Just disconnect from the server and exit poezio.'),
                shortdesc=_('Exit poezio.'))
        self.register_command('quit', self.command_quit,
                desc=_('Just disconnect from the server and exit poezio.'),
                shortdesc=_('Exit poezio.'))
        self.register_command('next', self.rotate_rooms_right,
                shortdesc=_('Go to the next room.'))
        self.register_command('prev', self.rotate_rooms_left,
                shortdesc=_('Go to the previous room.'))
        self.register_command('win', self.command_win,
                usage=_('<number or name>'),
                shortdesc=_('Go to the specified room'),
                completion=self.completion_win)
        self.commands['w'] = self.commands['win']
        self.register_command('move_tab', self.command_move_tab,
                usage=_('<source> <destination>'),
                desc=_("Insert the <source> tab at the position of "
                    "<destination>. This will make the following tabs shift in"
                    " some cases (refer to the documentation). A tab can be "
                    "designated by its number or by the beginning of its "
                    "address."),
                shortdesc=_('Move a tab.'),
                completion=self.completion_move_tab)
        self.register_command('show', self.command_status,
                usage=_('<availability> [status message]'),
                desc=_("Sets your availability and (optionally) your status "
                    "message. The <availability> argument is one of \"available"
                    ", chat, away, afk, dnd, busy, xa\" and the optional "
                    "[status message] argument will be your status message."),
                shortdesc=_('Change your availability.'),
                completion=self.completion_status)
        self.commands['status'] = self.commands['show']
        self.register_command('bookmark_local', self.command_bookmark_local,
                usage=_("[roomname][/nick] [password]"),
                desc=_("Bookmark Local: Bookmark locally the specified room "
                    "(you will then auto-join it on each poezio start). This"
                    " commands uses almost the same syntaxe as /join. Type "
                    "/help join for syntax examples. Note that when typing "
                    "\"/bookmark\" on its own, the room will be bookmarked "
                    "with the nickname you\'re currently using in this room "
                    "(instead of default_nick)"),
                shortdesc=_('Bookmark a room locally.'),
                completion=self.completion_bookmark_local)
        self.register_command('bookmark', self.command_bookmark,
                usage=_("[roomname][/nick] [autojoin] [password]"),
                desc=_("Bookmark: Bookmark online the specified room (you "
                    "will then auto-join it on each poezio start if autojoin"
                    " is specified and is 'true'). This commands uses almost"
                    " the same syntax as /join. Type /help join for syntax "
                    "examples. Note that when typing \"/bookmark\" alone, the"
                    " room will be bookmarked with the nickname you\'re "
                    "currently using in this room (instead of default_nick)."),
                shortdesc=_("Bookmark a room online."),
                completion=self.completion_bookmark)
        self.register_command('set', self.command_set,
                usage=_("[plugin|][section] <option> [value]"),
                desc=_("Set the value of an option in your configuration file."
                    " You can, for example, change your default nickname by "
                    "doing `/set default_nick toto` or your resource with `/set"
                    "resource blabla`. You can also set options in specific "
                    "sections with `/set bindings M-i ^i` or in specific plugin"
                    " with `/set mpd_client| host 127.0.0.1`. `toggle` can be "
                    "used as a special value to toggle a boolean option."),
                shortdesc=_("Set the value of an option"),
                completion=self.completion_set)
        self.register_command('theme', self.command_theme,
                usage=_('[theme name]'),
                desc=_("Reload the theme defined in the config file. If theme"
                    "_name is provided, set that theme before reloading it."),
                shortdesc=_('Load a theme'),
                completion=self.completion_theme)
        self.register_command('list', self.command_list,
                usage=_('[server]'),
                desc=_("Get the list of public chatrooms"
                    " on the specified server."),
                shortdesc=_('List the rooms.'),
                completion=self.completion_list)
        self.register_command('message', self.command_message,
                usage=_('<jid> [optional message]'),
                desc=_("Open a conversation with the specified JID (even if it"
                    " is not in our roster), and send a message to it, if the "
                    "message is specified."),
                shortdesc=_('Send a message'),
                completion=self.completion_message)
        self.register_command('version', self.command_version,
                usage='<jid>',
                desc=_("Get the software version of the given JID (usually its"
                    " XMPP client and Operating System)."),
                shortdesc=_('Get the software version of a JID.'),
                completion=self.completion_version)
        self.register_command('server_cycle', self.command_server_cycle,
                usage=_('[domain] [message]'),
                desc=_('Disconnect and reconnect in all the rooms in domain.'),
                shortdesc=_('Cycle a range of rooms'),
                completion=self.completion_server_cycle)
        self.register_command('bind', self.command_bind,
                usage=_(' <key> <equ>'),
                desc=_("Bind a key to another key or to a “command”. For "
                    "example \"/bind ^H KEY_UP\" makes Control + h do the"
                    " same same as the Up key."),
                completion=self.completion_bind,
                shortdesc=_('Bind a key to another key.'))
        self.register_command('load', self.command_load,
                usage=_('<plugin>'),
                shortdesc=_('Load the specified plugin'),
                completion=self.plugin_manager.completion_load)
        self.register_command('unload', self.command_unload,
                usage=_('<plugin>'),
                shortdesc=_('Unload the specified plugin'),
                completion=self.plugin_manager.completion_unload)
        self.register_command('plugins', self.command_plugins,
                shortdesc=_('Show the plugins in use.'))
        self.register_command('presence', self.command_presence,
                usage=_('<JID> [type] [status]'),
                desc=_("Send a directed presence to <JID> and using"
                    " [type] and [status] if provided."),
                shortdesc=_('Send a directed presence.'),
                completion=self.completion_presence)
        self.register_command('rawxml', self.command_rawxml,
                usage='<xml>',
                shortdesc=_('Send a custom xml stanza.'))
        self.register_command('invite', self.command_invite,
                usage=_('<jid> <room> [reason]'),
                desc=_('Invite jid in room with reason.'),
                shortdesc=_('Invite someone in a room.'),
                completion=self.completion_invite)
        self.register_command('invitations', self.command_invitations,
                shortdesc=_('Show the pending invitations.'))
        self.register_command('bookmarks', self.command_bookmarks,
                shortdesc=_('Show the current bookmarks.'))
        self.register_command('remove_bookmark', self.command_remove_bookmark,
                usage='[jid]',
                desc=_("Remove the specified bookmark, or the "
                    "bookmark on the current tab, if any."),
                shortdesc=_('Remove a bookmark'),
                completion=self.completion_remove_bookmark)
        self.register_command('xml_tab', self.command_xml_tab,
                shortdesc=_('Open an XML tab.'))
        self.register_command('runkey', self.command_runkey,
                usage=_('<key>'),
                shortdesc=_('Execute the action defined for <key>.'),
                completion=self.completion_runkey)
        self.register_command('self', self.command_self,
                shortdesc=_('Remind you of who you are.'))
        self.register_command('last_activity', self.command_last_activity,
                usage='<jid>',
                desc=_('Informs you of the last activity of a JID.'),
                shortdesc=_('Get the activity of someone.'),
                completion=self.completion_last_activity)

        if config.get('enable_user_mood', 'true') != 'false':
            self.register_command('activity', self.command_activity,
                    usage='[<general> [specific] [text]]',
                    desc=_('Send your current activity to your contacts (use the completion).'
                           ' Nothing means "stop broadcasting an activity".'),
                    shortdesc=_('Send your activity.'),
                    completion=self.completion_activity)
        if config.get('enable_user_activity', 'true') != 'false':
            self.register_command('mood', self.command_mood,
                    usage='[<mood> [text]]',
                    desc=_('Send your current mood to your contacts (use the completion).'
                           ' Nothing means "stop broadcasting a mood".'),
                    shortdesc=_('Send your mood.'),
                    completion=self.completion_mood)
        if config.get('enable_user_gaming', 'true') != 'false':
            self.register_command('gaming', self.command_gaming,
                    usage='[<game name> [server address]]',
                    desc=_('Send your current gaming activity to your contacts.'
                           ' Nothing means "stop broadcasting a gaming activity".'),
                    shortdesc=_('Send your gaming activity.'),
                    completion=None)

####################### XMPP Event Handlers  ##################################

    def on_session_start_features(self, _):
        """
        Enable carbons & blocking on session start if wanted and possible
        """
        def callback(iq):
            if not iq:
                return
            features = iq['disco_info']['features']
            rostertab = self.get_tab_by_name('Roster')
            rostertab.check_blocking(features)
            if (config.get('enable_carbons', 'true').lower() != 'false' and
                    'urn:xmpp:carbons:2' in features):
                self.xmpp.plugin['xep_0280'].enable()
                self.xmpp.add_event_handler('carbon_received', self.on_carbon_received)
                self.xmpp.add_event_handler('carbon_sent', self.on_carbon_sent)
        features = self.xmpp.plugin['xep_0030'].get_info(jid=self.xmpp.boundjid.domain, callback=callback, block=False)

    def on_carbon_received(self, message):
        recv = message['carbon_received']
        if recv['from'].bare not in roster or roster[recv['from'].bare].subscription == 'none':
            try:
                if self.xmpp.plugin['xep_0030'].has_identity(jid=recv['from'].server, category="conference"):
                    return
            except:
                pass
            else:
                return
        recv['to'] = self.xmpp.boundjid.full
        self.on_normal_message(recv)

    def on_carbon_sent(self, message):
        sent = message['carbon_sent']
        if sent['to'].bare not in roster or roster[sent['to'].bare].subscription == 'none':
            try:
                if self.xmpp.plugin['xep_0030'].has_identity(jid=sent['to'].server, category="conference"):
                    return
            except:
                pass
            else:
                return
        sent['from'] = self.xmpp.boundjid.full
        self.on_normal_message(sent)

    ### Invites ###

    def on_groupchat_invite(self, message):
        jid = message['from']
        if jid.bare in self.pending_invites:
            return
        # there are 2 'x' tags in the messages, making message['x'] useless
        invite = StanzaBase(self.xmpp, xml=message.find('{http://jabber.org/protocol/muc#user}x/{http://jabber.org/protocol/muc#user}invite'))
        inviter = invite['from']
        reason = invite['reason']
        password = invite['password']
        msg = "You are invited to the room %s by %s" % (jid.full, inviter.full)
        if reason:
            msg += "because: %s" % reason
        if password:
            msg += ". The password is \"%s\"." % password
        self.information(msg, 'Info')
        if 'invite' in config.get('beep_on', 'invite').split():
            curses.beep()
        logger.log_roster_change(inviter.full, 'invited you to %s' % jid.full)
        self.pending_invites[jid.bare] = inviter.full

    def on_groupchat_decline(self, decline):
        pass

    ### "classic" messages ###

    def on_message(self, message):
        """
        When receiving private message from a muc OR a normal message
        (from one of our contacts)
        """
        if message.find('{http://jabber.org/protocol/muc#user}x/{http://jabber.org/protocol/muc#user}invite') != None:
            return
        if message['type'] == 'groupchat':
            return
        # Differentiate both type of messages, and call the appropriate handler.
        jid_from = message['from']
        for tab in self.tabs:
            if tab.get_name() == jid_from.bare and isinstance(tab, tabs.MucTab):
                if message['type'] == 'error':
                    return self.room_error(message, jid_from)
                else:
                    return self.on_groupchat_private_message(message)
        return self.on_normal_message(message)

    def on_normal_message(self, message):
        """
        When receiving "normal" messages (from someone in our roster)
        """
        if message['type'] == 'error':
            return self.information(self.get_error_message(message, deprecated=True), 'Error')
        elif message['type'] == 'headline' and message['body']:
            return self.information('%s says: %s' % (message['from'], message['body']), 'Headline')

        use_xhtml = config.get('enable_xhtml_im', 'true') == 'true'
        body = xhtml.get_body_from_message_stanza(message, use_xhtml=use_xhtml)
        if not body:
            return

        remote_nick = ''
        # normal message, we are the recipient
        if message['to'].bare == self.xmpp.boundjid.bare:
            conv_jid = message['from']
            jid = conv_jid
            color = get_theme().COLOR_REMOTE_USER
            # check for a name
            if conv_jid.bare in roster:
                remote_nick = roster[conv_jid.bare].name
            # check for a received nick
            if not remote_nick and config.get('enable_user_nick', 'true') != 'false':
                if message.xml.find('{http://jabber.org/protocol/nick}nick') is not None:
                    remote_nick = message['nick']['nick']
            own = False
        # we wrote the message (happens with carbons)
        elif message['from'].bare == self.xmpp.boundjid.bare:
            conv_jid = message['to']
            jid = self.xmpp.boundjid
            color = get_theme().COLOR_OWN_NICK
            remote_nick = self.own_nick
            own = True
        # we are not part of that message, drop it
        else:
            return

        conversation = self.get_conversation_by_jid(conv_jid, create=True)
        if isinstance(conversation, tabs.DynamicConversationTab):
            conversation.lock(conv_jid.resource)

        if not remote_nick and conversation.nick:
            remote_nick = conversation.nick
        elif not remote_nick or own:
            remote_nick = conv_jid.user
        conversation.nick = remote_nick

        self.events.trigger('conversation_msg', message, conversation)
        if not message['body']:
            return
        body = xhtml.get_body_from_message_stanza(message, use_xhtml=use_xhtml)
        delayed, date = common.find_delayed_tag(message)

        def try_modify():
            replaced_id = message['replace']['id']
            if replaced_id and (config.get_by_tabname('group_corrections',
                'true', conv_jid.bare).lower() != 'false'):
                try:
                    conversation.modify_message(body, replaced_id, message['id'], jid=jid,
                            nickname=remote_nick)
                    return True
                except CorrectionError:
                    log.error('Unable to correct a message', exc_info=True)
            return False

        if not try_modify():
            conversation.add_message(body, date,
                    nickname=remote_nick,
                    nick_color=color,
                    history=delayed,
                    identifier=message['id'],
                    jid=jid,
                    typ=1)

        if conversation.remote_wants_chatstates is None and not delayed:
            if message['chat_state']:
                conversation.remote_wants_chatstates = True
            else:
                conversation.remote_wants_chatstates = False
        if 'private' in config.get('beep_on', 'highlight private').split():
            if config.get_by_tabname('disable_beep', 'false', conv_jid.bare, False).lower() != 'true':
                curses.beep()
        if self.current_tab() is not conversation:
            conversation.state = 'private'
            self.refresh_tab_win()
        else:
            self.refresh_window()

    def on_nick_received(self, message):
        """
        Called when a pep notification for an user nickname
        is received
        """
        contact = roster[message['from'].bare]
        if not contact:
            return
        item = message['pubsub_event']['items']['item']
        if item.xml.find('{http://jabber.org/protocol/nick}nick'):
            contact.name = item['nick']['nick']
        else:
            contact.name= ''

    def on_gaming_event(self, message):
        """
        Called when a pep notification for user gaming
        is received
        """
        contact = roster[message['from'].bare]
        if not contact:
            return
        item = message['pubsub_event']['items']['item']
        old_gaming = contact.gaming
        if item.xml.find('{urn:xmpp:gaming:0}gaming'):
            item = item['gaming']
            # only name and server_address are used for now
            contact.gaming = {
                    'character_name': item['character_name'],
                    'character_profile': item['character_profile'],
                    'name': item['name'],
                    'level': item['level'],
                    'uri': item['uri'],
                    'server_name': item['server_name'],
                    'server_address': item['server_address'],
                }
        else:
            contact.gaming = {}

        if contact.gaming:
            logger.log_roster_change(contact.bare_jid, 'is playing %s' % (common.format_gaming_string(contact.gaming)))

        if old_gaming != contact.gaming and config.get_by_tabname('display_gaming_notifications', 'false', contact.bare_jid) == 'true':
            if contact.gaming:
                self.information('%s is playing %s' % (contact.bare_jid, common.format_gaming_string(contact.gaming)), 'Gaming')
            else:
                self.information(contact.bare_jid + ' stopped playing.', 'Gaming')

    def on_mood_event(self, message):
        """
        Called when a pep notification for an user mood
        is received.
        """
        contact = roster[message['from'].bare]
        if not contact:
            return
        roster.modified()
        item = message['pubsub_event']['items']['item']
        old_mood = contact.mood
        if item.xml.find('{http://jabber.org/protocol/mood}mood'):
            mood = item['mood']['value']
            if mood:
                mood = pep.MOODS.get(mood, mood)
                text = item['mood']['text']
                if text:
                    mood = '%s (%s)' % (mood, text)
                contact.mood = mood
            else:
                contact.mood = ''
        else:
            contact.mood = ''

        if contact.mood:
            logger.log_roster_change(contact.bare_jid, 'has now the mood: %s' % contact.mood)

        if old_mood != contact.mood and config.get_by_tabname('display_mood_notifications', 'false', contact.bare_jid) == 'true':
            if contact.mood:
                self.information('Mood from '+ contact.bare_jid + ': ' + contact.mood, 'Mood')
            else:
                self.information(contact.bare_jid + ' stopped having his/her mood.', 'Mood')

    def on_activity_event(self, message):
        """
        Called when a pep notification for an user activity
        is received.
        """
        contact = roster[message['from'].bare]
        if not contact:
            return
        roster.modified()
        item = message['pubsub_event']['items']['item']
        old_activity = contact.activity
        if item.xml.find('{http://jabber.org/protocol/activity}activity'):
            try:
                activity = item['activity']['value']
            except ValueError:
                return
            if activity[0]:
                general = pep.ACTIVITIES.get(activity[0])
                s = general['category']
                if activity[1]:
                    s = s + '/' + general.get(activity[1], 'other')
                text = item['activity']['text']
                if text:
                    s = '%s (%s)' % (s, text)
                contact.activity = s
            else:
                contact.activity = ''
        else:
            contact.activity = ''

        if contact.activity:
            logger.log_roster_change(contact.bare_jid, 'has now the activity %s' % contact.activity)

        if old_activity != contact.activity and config.get_by_tabname('display_activity_notifications', 'false', contact.bare_jid) == 'true':
            if contact.activity:
                self.information('Activity from '+ contact.bare_jid + ': ' + contact.activity, 'Activity')
            else:
                self.information(contact.bare_jid + ' stopped doing his/her activity.', 'Activity')

    def on_tune_event(self, message):
        """
        Called when a pep notification for an user tune
        is received
        """
        contact = roster[message['from'].bare]
        if not contact:
            return
        roster.modified()
        item = message['pubsub_event']['items']['item']
        old_tune = contact.tune
        if item.xml.find('{http://jabber.org/protocol/tune}tune'):
            item = item['tune']
            contact.tune =  {
                    'artist': item['artist'],
                    'length': item['length'],
                    'rating': item['rating'],
                    'source': item['source'],
                    'title': item['title'],
                    'track': item['track'],
                    'uri': item['uri']
                }
        else:
            contact.tune = {}

        if contact.tune:
            logger.log_roster_change(message['from'].bare, 'is now listening to %s' % common.format_tune_string(contact.tune))

        if old_tune != contact.tune and config.get_by_tabname('display_tune_notifications', 'false', contact.bare_jid) == 'true':
            if contact.tune:
                self.information(
                        'Tune from '+ message['from'].bare + ': ' + common.format_tune_string(contact.tune),
                        'Tune')
            else:
                self.information(contact.bare_jid + ' stopped listening to music.', 'Tune')

    def on_groupchat_message(self, message):
        """
        Triggered whenever a message is received from a multi-user chat room.
        """
        if message['subject']:
            return
        room_from = message['from'].bare

        if message['type'] == 'error': # Check if it's an error
            return self.room_error(message, room_from)

        tab = self.get_tab_by_name(room_from, tabs.MucTab)
        if not tab:
            self.information(_("message received for a non-existing room: %s") % (room_from))
            return

        nick_from = message['mucnick']
        user = tab.get_user_by_name(nick_from)
        if user and user in tab.ignores:
            return

        self.events.trigger('muc_msg', message, tab)
        use_xhtml = config.get('enable_xhtml_im', 'true') == 'true'
        body = xhtml.get_body_from_message_stanza(message, use_xhtml=use_xhtml)
        if not body:
            return

        old_state = tab.state
        delayed, date = common.find_delayed_tag(message)
        replaced_id = message['replace']['id']
        replaced = False
        if replaced_id is not '' and (config.get_by_tabname(
            'group_corrections', 'true', message['from'].bare).lower() != 'false'):
            try:
                if tab.modify_message(body, replaced_id, message['id'], time=date,
                        nickname=nick_from, user=user):
                    self.events.trigger('highlight', message, tab)
                replaced = True
            except CorrectionError:
                log.error('Unable to correct a message', exc_info=True)
        if not replaced and tab.add_message(body, date, nick_from, history=delayed, identifier=message['id'], jid=message['from'], typ=1):
            self.events.trigger('highlight', message, tab)

        if message['from'].resource == tab.own_nick:
            tab.last_sent_message = message

        if tab is self.current_tab():
            tab.text_win.refresh()
            tab.info_header.refresh(tab, tab.text_win)
            tab.input.refresh()
            self.doupdate()
        elif tab.state != old_state:
            self.refresh_tab_win()
            self.current_tab().input.refresh()
            self.doupdate()

        if 'message' in config.get('beep_on', 'highlight private').split():
            if config.get_by_tabname('disable_beep', 'false', room_from, False).lower() != 'true':
                curses.beep()

    def on_groupchat_private_message(self, message):
        """
        We received a Private Message (from someone in a Muc)
        """
        jid = message['from']
        nick_from = jid.resource
        if not nick_from:
            return self.on_groupchat_message(message)

        room_from = jid.bare
        use_xhtml = config.get('enable_xhtml_im', 'true') == 'true'
        body = xhtml.get_body_from_message_stanza(message, use_xhtml=use_xhtml)
        tab = self.get_tab_by_name(jid.full, tabs.PrivateTab) # get the tab with the private conversation
        ignore = config.get_by_tabname('ignore_private', 'false',
                room_from).lower() == 'true'
        if not tab: # It's the first message we receive: create the tab
            if body and not ignore:
                tab = self.open_private_window(room_from, nick_from, False)
        if ignore:
            self.events.trigger('ignored_private', message, tab)
            msg = config.get_by_tabname('private_auto_response', None, room_from)
            if msg and body:
                self.xmpp.send_message(mto=jid.full, mbody=msg, mtype='chat')
            return
        self.events.trigger('private_msg', message, tab)
        body = xhtml.get_body_from_message_stanza(message, use_xhtml=use_xhtml)
        if not body or not tab:
            return
        replaced_id = message['replace']['id']
        replaced = False
        user = tab.parent_muc.get_user_by_name(nick_from)
        if replaced_id is not '' and (config.get_by_tabname(
            'group_corrections', 'true', room_from).lower() != 'false'):
            try:
                tab.modify_message(body, replaced_id, message['id'], user=user, jid=message['from'],
                        nickname=nick_from)
                replaced = True
            except CorrectionError:
                log.error('Unable to correct a message', exc_info=True)
        if not replaced:
            tab.add_message(body, time=None, nickname=nick_from,
                            forced_user=user,
                            identifier=message['id'],
                            jid=message['from'],
                            typ=1)

        if tab.remote_wants_chatstates is None:
            if message['chat_state']:
                tab.remote_wants_chatstates = True
            else:
                tab.remote_wants_chatstates = False
        if 'private' in config.get('beep_on', 'highlight private').split():
            if config.get_by_tabname('disable_beep', 'false', jid.full, False).lower() != 'true':
                curses.beep()
        if tab is self.current_tab():
            self.refresh_window()
        else:
            tab.state = 'private'
            self.refresh_tab_win()

    ### Chatstates ###

    def on_chatstate_active(self, message):
        self.on_chatstate(message, "active")

    def on_chatstate_inactive(self, message):
        self.on_chatstate(message, "inactive")

    def on_chatstate_composing(self, message):
        self.on_chatstate(message, "composing")

    def on_chatstate_paused(self, message):
        self.on_chatstate(message, "paused")

    def on_chatstate_gone(self, message):
        self.on_chatstate(message, "gone")

    def on_chatstate(self, message, state):
        if message['type'] == 'chat':
            if not self.on_chatstate_normal_conversation(message, state):
                tab = self.get_tab_by_name(message['from'].full, tabs.PrivateTab)
                if not tab:
                    return
                self.on_chatstate_private_conversation(message, state)
        elif message['type'] == 'groupchat':
            self.on_chatstate_groupchat_conversation(message, state)

    def on_chatstate_normal_conversation(self, message, state):
        tab = self.get_conversation_by_jid(message['from'], False)
        if not tab:
            return False
        tab.remote_wants_chatstates = True
        self.events.trigger('normal_chatstate', message, tab)
        tab.chatstate = state
        if state == 'gone' and isinstance(tab, tabs.DynamicConversationTab):
            tab.unlock()
        if tab == self.current_tab():
            tab.refresh_info_header()
            self.doupdate()
        return True

    def on_chatstate_private_conversation(self, message, state):
        """
        Chatstate received in a private conversation from a MUC
        """
        tab = self.get_tab_by_name(message['from'].full, tabs.PrivateTab)
        if not tab:
            return
        tab.remote_wants_chatstates = True
        self.events.trigger('private_chatstate', message, tab)
        tab.chatstate = state
        if tab == self.current_tab():
            tab.refresh_info_header()
            self.doupdate()
        return True

    def on_chatstate_groupchat_conversation(self, message, state):
        """
        Chatstate received in a MUC
        """
        nick = message['mucnick']
        room_from = message.getMucroom()
        tab = self.get_tab_by_name(room_from, tabs.MucTab)
        if tab and tab.get_user_by_name(nick):
            self.events.trigger('muc_chatstate', message, tab)
            tab.get_user_by_name(nick).chatstate = state
        if tab == self.current_tab():
            tab.user_win.refresh(tab.users)
            tab.input.refresh()
            self.doupdate()

    ### subscription-related handlers ###

    def on_roster_update(self, iq):
        """
        The roster was received.
        """
        for item in iq['roster']:
            jid = item['jid']
            if item['subscription'] == 'remove':
                del roster[jid]
            else:
                roster.update_contact_groups(jid)
        if isinstance(self.current_tab(), tabs.RosterInfoTab):
            self.refresh_window()

    def on_subscription_request(self, presence):
        """subscribe received"""
        jid = presence['from'].bare
        contact = roster[jid]
        if contact and contact.subscription in ('from', 'both'):
            return
        elif contact and contact.subscription == 'to':
            self.xmpp.sendPresence(pto=jid, ptype='subscribed')
            self.xmpp.sendPresence(pto=jid)
        else:
            if not contact:
                contact = roster.get_and_set(jid)
            roster.update_contact_groups(contact)
            contact.pending_in = True
            self.information('%s wants to subscribe to your presence' % jid, 'Roster')
            self.get_tab_by_number(0).state = 'highlight'
            roster.modified()
        if isinstance(self.current_tab(), tabs.RosterInfoTab):
            self.refresh_window()

    def on_subscription_authorized(self, presence):
        """subscribed received"""
        jid = presence['from'].bare
        contact = roster[jid]
        if contact.subscription not in ('both', 'from'):
            self.information('%s accepted your contact proposal' % jid, 'Roster')
        if contact.pending_out:
            contact.pending_out = False

        roster.modified()

        if isinstance(self.current_tab(), tabs.RosterInfoTab):
            self.refresh_window()

    def on_subscription_remove(self, presence):
        """unsubscribe received"""
        jid = presence['from'].bare
        contact = roster[jid]
        if not contact:
            return
        roster.modified()
        self.information('%s does not want to receive your status anymore.' % jid, 'Roster')
        self.get_tab_by_number(0).state = 'highlight'
        if isinstance(self.current_tab(), tabs.RosterInfoTab):
            self.refresh_window()

    def on_subscription_removed(self, presence):
        """unsubscribed received"""
        jid = presence['from'].bare
        contact = roster[jid]
        if not contact:
            return
        roster.modified()
        if contact.pending_out:
            self.information('%s rejected your contact proposal' % jid, 'Roster')
            contact.pending_out = False
        else:
            self.information('%s does not want you to receive his/her/its status anymore.'%jid, 'Roster')
        self.get_tab_by_number(0).state = 'highlight'
        if isinstance(self.current_tab(), tabs.RosterInfoTab):
            self.refresh_window()

    ### Presence-related handlers ###

    def on_presence(self, presence):
        if presence.match('presence/muc') or presence.xml.find('{http://jabber.org/protocol/muc#user}x'):
            return
        jid = presence['from']
        contact = roster[jid.bare]
        tab = self.get_conversation_by_jid(jid, create=False)
        if isinstance(tab, tabs.DynamicConversationTab) and tab.get_dest_jid() != jid.full:
            tab.unlock()
        if contact is None:
            return
        roster.modified()
        contact.error = None
        self.events.trigger('normal_presence', presence, contact[jid.full])
        tab = self.get_conversation_by_jid(jid, create=False)
        if isinstance(self.current_tab(), tabs.RosterInfoTab):
            self.refresh_window()
        elif self.current_tab() == tab:
            tab.refresh()
            self.doupdate()

    def on_presence_error(self, presence):
        jid = presence['from']
        contact = roster[jid.bare]
        if not contact:
            return
        roster.modified()
        contact.error = presence['error']['type'] + ': ' + presence['error']['condition']

    def on_got_offline(self, presence):
        """
        A JID got offline
        """
        if presence.match('presence/muc') or presence.xml.find('{http://jabber.org/protocol/muc#user}x'):
            return
        jid = presence['from']
        if not logger.log_roster_change(jid.bare, 'got offline'):
            self.information(_('Unable to write in the log file'), 'Error')
        # If a resource got offline, display the message in the conversation with this
        # precise resource.
        if jid.resource:
            self.add_information_message_to_conversation_tab(jid.full, '\x195}%s is \x191}offline' % (jid.full))
        self.add_information_message_to_conversation_tab(jid.bare, '\x195}%s is \x191}offline' % (jid.bare))
        self.information('\x193}%s \x195}is \x191}offline' % (jid.bare), 'Roster')
        roster.modified()
        if isinstance(self.current_tab(), tabs.RosterInfoTab):
            self.refresh_window()

    def on_got_online(self, presence):
        """
        A JID got online
        """
        if presence.match('presence/muc') or presence.xml.find('{http://jabber.org/protocol/muc#user}x'):
            return
        jid = presence['from']
        contact = roster[jid.bare]
        if contact is None:
            # Todo, handle presence coming from contacts not in roster
            return
        roster.modified()
        if not logger.log_roster_change(jid.bare, 'got online'):
            self.information(_('Unable to write in the log file'), 'Error')
        resource = Resource(jid.full, {
            'priority': presence.get_priority() or 0,
            'status': presence['status'],
            'show': presence['show'],
            })
        self.events.trigger('normal_presence', presence, resource)
        self.add_information_message_to_conversation_tab(jid.full, '\x195}%s is \x194}online' % (jid.full))
        if time.time() - self.connection_time > 10:
            # We do not display messages if we recently logged in
            if presence['status']:
                self.information("\x193}%s \x195}is \x194}online\x195} (\x19o%s\x195})" % (safeJID(resource.jid).bare, presence['status']), "Roster")
            else:
                self.information("\x193}%s \x195}is \x194}online\x195}" % safeJID(resource.jid).bare, "Roster")
            self.add_information_message_to_conversation_tab(jid.bare, '\x195}%s is \x194}online' % (jid.bare))
        if isinstance(self.current_tab(), tabs.RosterInfoTab):
            self.refresh_window()

    def on_groupchat_presence(self, presence):
        """
        Triggered whenever a presence stanza is received from a user in a multi-user chat room.
        Display the presence on the room window and update the
        presence information of the concerned user
        """
        from_room = presence['from'].bare
        tab = self.get_tab_by_name(from_room, tabs.MucTab)
        if tab:
            self.events.trigger('muc_presence', presence, tab)
            tab.handle_presence(presence)


    ### Connection-related handlers ###

    def on_failed_connection(self):
        """
        We cannot contact the remote server
        """
        self.information(_("Connection to remote server failed"))

    def on_disconnected(self, event):
        """
        When we are disconnected from remote server
        """
        roster.modified()
        for tab in self.tabs:
            if isinstance(tab, tabs.MucTab):
                tab.disconnect()
        self.information(_("Disconnected from server."))

    def on_failed_auth(self, event):
        """
        Authentication failed
        """
        self.information(_("Authentication failed (bad credentials?)."))

    def on_no_auth(self, event):
        """
        Authentication failed (no mech)
        """
        self.information(_("Authentication failed, no login method available."))

    def on_connected(self, event):
        """
        Remote host responded, but we are not yet authenticated
        """
        self.information(_("Connected to server."))

    def on_session_start(self, event):
        """
        Called when we are connected and authenticated
        """
        self.connection_time = time.time()
        if not self.plugins_autoloaded: # Do not reload plugins on reconnection
            self.autoload_plugins()
        self.information(_("Authentication success."))
        self.information(_("Your JID is %s") % self.xmpp.boundjid.full)
        if not self.xmpp.anon:
            # request the roster
            self.xmpp.get_roster()
            # send initial presence
            if config.get('send_initial_presence', 'true').lower() != 'false':
                pres = self.xmpp.make_presence()
                pres['show'] = self.status.show
                pres['status'] = self.status.message
                self.events.trigger('send_normal_presence', pres)
                pres.send()
        bookmark.get_local()
        if not self.xmpp.anon and not config.get('use_remote_bookmarks', 'true').lower() == 'false':
            bookmark.get_remote(self.xmpp)
        for bm in bookmark.bookmarks:
            tab = self.get_tab_by_name(bm.jid, tabs.MucTab)
            nick = bm.nick if bm.nick else self.own_nick
            if not tab:
                self.open_new_room(bm.jid, nick, False)
            self.initial_joins.append(bm.jid)
            histo_length = config.get('muc_history_length', 20)
            if histo_length == -1:
                histo_length= None
            if histo_length is not None:
                histo_length= str(histo_length)
            # do not join rooms that do not have autojoin
            # but display them anyway
            if bm.autojoin:
                muc.join_groupchat(self, bm.jid, nick,
                        passwd=bm.password,
                        maxhistory=histo_length,
                        status=self.status.message,
                        show=self.status.show)

        if config.get('enable_user_nick', 'true') != 'false':
            self.xmpp.plugin['xep_0172'].publish_nick(nick=self.own_nick, callback=dumb_callback, block=False)
        self.xmpp.plugin['xep_0115'].update_caps()

    ### Other handlers ###

    def on_status_codes(self, message):
        """
        Handle groupchat messages with status codes.
        Those are received when a room configuration change occurs.
        """
        room_from = message['from']
        tab = self.get_tab_by_name(room_from, tabs.MucTab)
        status_codes = set([s.attrib['code'] for s in message.findall('{%s}x/{%s}status' % (tabs.NS_MUC_USER, tabs.NS_MUC_USER))])
        if '101' in status_codes:
            self.information('Your affiliation in the room %s changed' % room_from, 'Info')
        elif tab and status_codes:
            show_unavailable = '102' in status_codes
            hide_unavailable = '103' in status_codes
            non_priv = '104' in status_codes
            logging_on = '170' in status_codes
            logging_off= '171' in status_codes
            non_anon = '172' in status_codes
            semi_anon = '173' in status_codes
            full_anon = '174' in status_codes
            modif = False
            if show_unavailable or hide_unavailable or non_priv or logging_off\
                    or non_anon or semi_anon or full_anon:
                tab.add_message('\x19%(info_col)s}Info: A configuration change not privacy-related occured.' %
                        {'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT)},
                        typ=2)
                modif = True
            if show_unavailable:
                tab.add_message('\x19%(info_col)s}Info: The unavailable members are now shown.' %
                        {'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT)},
                        typ=2)
            elif hide_unavailable:
                tab.add_message('\x19%(info_col)s}Info: The unavailable members are now hidden.' %
                        {'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT)},
                        typ=2)
            if non_anon:
                tab.add_message('\x191}Warning:\x19%(info_col)s} The room is now not anonymous. (public JID)' %
                        {'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT)},
                        typ=2)
            elif semi_anon:
                tab.add_message('\x19%(info_col)s}Info: The room is now semi-anonymous. (moderators-only JID)' %
                        {'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT)},
                        typ=2)
            elif full_anon:
                tab.add_message('\x19%(info_col)s}Info: The room is now fully anonymous.' %
                        {'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT)},
                        typ=2)
            if logging_on:
                tab.add_message('\x191}Warning: \x19%(info_col)s}This room is publicly logged' %
                        {'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT)},
                        typ=2)
            elif logging_off:
                tab.add_message('\x19%(info_col)s}Info: This room is not logged anymore.' %
                        {'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT)},
                        typ=2)
            if modif:
                self.refresh_window()

    def on_groupchat_subject(self, message):
        """
        Triggered when the topic is changed.
        """
        nick_from = message['mucnick']
        room_from = message.getMucroom()
        tab = self.get_tab_by_name(room_from, tabs.MucTab)
        subject = message['subject']
        if not subject or not tab:
            return
        if nick_from:
            tab.add_message(_("\x19%(info_col)s}%(nick)s set the subject to: %(subject)s") %
                    {'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT), 'nick':nick_from, 'subject':subject},
                    time=None,
                    typ=2)
        else:
            tab.add_message(_("\x19%(info_col)s}The subject is: %(subject)s") %
                    {'subject':subject, 'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT)},
                    time=None,
                    typ=2)
        tab.topic = subject
        if self.get_tab_by_name(room_from, tabs.MucTab) is self.current_tab():
            self.refresh_window()

    def on_data_form(self, message):
        """
        When a data form is received
        """
        self.information('%s' % message)

    def on_attention(self, message):
        """
        Attention probe received.
        """
        jid_from = message['from']
        self.information('%s requests your attention!' % jid_from, 'Info')
        for tab in self.tabs:
            if tab.get_name() == jid_from:
                tab.state = 'attention'
                self.refresh_tab_win()
                return
        for tab in self.tabs:
            if tab.get_name() == jid_from.bare:
                tab.state = 'attention'
                self.refresh_tab_win()
                return
        self.information('%s tab not found.' % jid_from, 'Error')

    def room_error(self, error, room_name):
        """
        Display the error in the tab
        """
        tab = self.get_tab_by_name(room_name)
        error_message = self.get_error_message(error)
        tab.add_message(error_message, highlight=True, nickname='Error', nick_color=get_theme().COLOR_ERROR_MSG, typ=2)
        code = error['error']['code']
        if code == '401':
            msg = _('To provide a password in order to join the room, type "/join / password" (replace "password" by the real password)')
            tab.add_message(msg, typ=2)
        if code == '409':
            if config.get('alternative_nickname', '') != '':
                self.command_join('%s/%s'% (tab.name, tab.own_nick+config.get('alternative_nickname', '')))
            else:
                if not tab.joined:
                    tab.add_message(_('You can join the room with an other nick, by typing "/join /other_nick"'), typ=2)
        self.refresh_window()

    def outgoing_stanza(self, stanza):
        """
        We are sending a new stanza, write it in the xml buffer if needed.
        """
        if self.xml_tab:
            self.add_message_to_text_buffer(self.xml_buffer, '\x191}<--\x19o %s' % stanza)
            if isinstance(self.current_tab(), tabs.XMLTab):
                self.current_tab().refresh()
                self.doupdate()

    def incoming_stanza(self, stanza):
        """
        We are receiving a new stanza, write it in the xml buffer if needed.
        """
        if self.xml_tab:
            self.add_message_to_text_buffer(self.xml_buffer, '\x192}-->\x19o %s' % stanza)
            if isinstance(self.current_tab(), tabs.XMLTab):
                self.current_tab().refresh()
                self.doupdate()

    def validate_ssl(self, pem):
        """
        Check the server certificate using the sleekxmpp ssl_cert event
        """
        if config.get('ignore_certificate', 'false').lower() == 'true':
            return
        cert = config.get('certificate', '')
        # update the cert representation when it uses the old one
        if cert and not ':' in cert:
            cert = ':'.join(i + j for i, j in zip(cert[::2], cert[1::2])).upper()
            config.set_and_save('certificate', cert)

        der = ssl.PEM_cert_to_DER_cert(pem)
        digest = sha1(der).hexdigest().upper()
        found_cert = ':'.join(i + j for i, j in zip(digest[::2], digest[1::2]))
        if cert:
            if found_cert == cert:
                log.debug('Cert %s OK', found_cert)
                return
            else:
                saved_input = self.current_tab().input
                log.debug('\nWARNING: CERTIFICATE CHANGED old: %s, new: %s\n', cert, found_cert)
                input = windows.YesNoInput(text="WARNING! Server certificate has changed, accept? (y/n) (%s)" % found_cert)
                self.current_tab().input = input
                input.resize(1, self.current_tab().width, self.current_tab().height-1, 0)
                input.refresh()
                self.doupdate()
                self.paused = True
                while input.value is None:
                    self.event.wait()
                self.current_tab().input = saved_input
                self.paused = False
                if input.value:
                    self.information('Setting new certificate: old: %s, new: %s' % (cert, found_cert), 'Info')
                    log.debug('Setting certificate to %s', found_cert)
                    if not config.silent_set('certificate', found_cert):
                        self.information(_('Unable to write in the config file'), 'Error')
                else:
                    self.information('You refused to validate the certificate. You are now disconnected', 'Info')
                    self.xmpp.disconnect()
        else:
            log.debug('First time. Setting certificate to %s', found_cert)
            if not config.silent_set('certificate', found_cert):
                self.information(_('Unable to write in the config file'), 'Error')




class KeyDict(dict):
    """
    A dict, with a wrapper for get() that will return a custom value
    if the key starts with _exc_
    """
    def get(self, k, d=None):
        if isinstance(k, str) and k.startswith('_exc_') and len(k) > 5:
            return lambda: dict.get(self, '_exc_')(k[5:])
        return dict.get(self, k, d)

def replace_key_with_bound(key):
    bind = config.get(key, key, 'bindings')
    if not bind:
        bind = key
    return bind

def dumb_callback(*args, **kwargs):
    pass