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authorlouiz’ <louiz@louiz.org>2017-03-14 21:45:23 +0100
committerlouiz’ <louiz@louiz.org>2017-03-14 21:45:23 +0100
commit0ab40dc1ab4e689921da54080b135e1d22b1c586 (patch)
tree238ac477aa6b29a8d1e187a8d97ecbcbbbc663ef /louloulibs/xmpp/jid.cpp
parent2d3806152e854ace7533fc3ad34d4ac1c44e9687 (diff)
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Refactoring louloulibs and cmake
Use OBJECT libraries Remove the louloulibs directory Write FOUND variables in the cache
Diffstat (limited to 'louloulibs/xmpp/jid.cpp')
-rw-r--r--louloulibs/xmpp/jid.cpp153
1 files changed, 0 insertions, 153 deletions
diff --git a/louloulibs/xmpp/jid.cpp b/louloulibs/xmpp/jid.cpp
deleted file mode 100644
index 46e01ea..0000000
--- a/louloulibs/xmpp/jid.cpp
+++ /dev/null
@@ -1,153 +0,0 @@
-#include <xmpp/jid.hpp>
-#include <algorithm>
-#include <cstring>
-#include <map>
-
-#include <louloulibs.h>
-#ifdef LIBIDN_FOUND
- #include <stringprep.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <netdb.h>
- #include <utils/scopeguard.hpp>
- #include <set>
-#endif
-
-#include <logger/logger.hpp>
-
-Jid::Jid(const std::string& jid)
-{
- std::string::size_type slash = jid.find('/');
- if (slash != std::string::npos)
- {
- this->resource = jid.substr(slash + 1);
- }
-
- std::string::size_type at = jid.find('@');
- if (at != std::string::npos && at < slash)
- {
- this->local = jid.substr(0, at);
- at++;
- }
- else
- at = 0;
-
- this->domain = jid.substr(at, slash - at);
-}
-
-static constexpr size_t max_jid_part_len = 1023;
-
-std::string jidprep(const std::string& original)
-{
-#ifdef LIBIDN_FOUND
- using CacheType = std::map<std::string, std::string>;
- static CacheType cache;
- std::pair<CacheType::iterator, bool> cached = cache.insert({original, {}});
- if (std::get<1>(cached) == false)
- { // Insertion failed: the result is already in the cache, return it
- return std::get<0>(cached)->second;
- }
-
- const std::string error_msg("Failed to convert " + original + " into a valid JID:");
- Jid jid(original);
-
- char local[max_jid_part_len] = {};
- memcpy(local, jid.local.data(), std::min(max_jid_part_len, jid.local.size()));
- Stringprep_rc rc = static_cast<Stringprep_rc>(::stringprep(local, max_jid_part_len,
- static_cast<Stringprep_profile_flags>(0), stringprep_xmpp_nodeprep));
- if (rc != STRINGPREP_OK)
- {
- log_error(error_msg + stringprep_strerror(rc));
- return "";
- }
-
- char domain[max_jid_part_len] = {};
- memcpy(domain, jid.domain.data(), std::min(max_jid_part_len, jid.domain.size()));
-
- {
- // Using getaddrinfo, check if the domain part is a valid IPv4 (then use
- // it as is), or IPv6 (surround it with []), or a domain name (run
- // nameprep)
- struct addrinfo hints;
- memset(&hints, 0, sizeof(hints));
- hints.ai_flags = AI_NUMERICHOST;
- hints.ai_family = AF_UNSPEC;
-
- struct addrinfo* addr_res = nullptr;
- const auto ret = ::getaddrinfo(domain, nullptr, &hints, &addr_res);
- auto addrinfo_deleter = utils::make_scope_guard([addr_res] { if (addr_res) freeaddrinfo(addr_res); });
- if (ret || !addr_res || (addr_res->ai_family != AF_INET && addr_res->ai_family != AF_INET6))
- { // Not an IP, run nameprep on it
- rc = static_cast<Stringprep_rc>(::stringprep(domain, max_jid_part_len,
- static_cast<Stringprep_profile_flags>(0), stringprep_nameprep));
- if (rc != STRINGPREP_OK)
- {
- log_error(error_msg + stringprep_strerror(rc));
- return "";
- }
-
- // Make sure it contains only allowed characters
- using std::begin;
- using std::end;
- char* domain_end = domain + ::strlen(domain);
- std::replace_if(std::begin(domain), domain + ::strlen(domain),
- [](const char c) -> bool
- {
- return !((c >= 'a' && c <= 'z') || c == '-' ||
- (c >= '0' && c <= '9') || c == '.');
- }, '-');
- // Make sure there are no doubled - or .
- std::set<char> special_chars{'-', '.'};
- domain_end = std::unique(begin(domain), domain + ::strlen(domain), [&special_chars](const char& a, const char& b) -> bool
- {
- return special_chars.count(a) && special_chars.count(b);
- });
- // remove leading and trailing -. if any
- if (domain_end != domain && special_chars.count(*(domain_end - 1)))
- --domain_end;
- if (domain_end != domain && special_chars.count(domain[0]))
- {
- std::memmove(domain, domain + 1, domain_end - domain + 1);
- --domain_end;
- }
- // And if the final result is an empty string, return a dummy hostname
- if (domain_end == domain)
- ::strcpy(domain, "empty");
- else
- *domain_end = '\0';
- }
- else if (addr_res->ai_family == AF_INET6)
- { // IPv6, surround it with []. The length is always enough:
- // the longest possible IPv6 is way shorter than max_jid_part_len
- ::memmove(domain + 1, domain, jid.domain.size());
- domain[0] = '[';
- domain[jid.domain.size() + 1] = ']';
- }
- }
-
-
- // If there is no resource, stop here
- if (jid.resource.empty())
- {
- std::get<0>(cached)->second = std::string(local) + "@" + domain;
- return std::get<0>(cached)->second;
- }
-
- // Otherwise, also process the resource part
- char resource[max_jid_part_len] = {};
- memcpy(resource, jid.resource.data(), std::min(max_jid_part_len, jid.resource.size()));
- rc = static_cast<Stringprep_rc>(::stringprep(resource, max_jid_part_len,
- static_cast<Stringprep_profile_flags>(0), stringprep_xmpp_resourceprep));
- if (rc != STRINGPREP_OK)
- {
- log_error(error_msg + stringprep_strerror(rc));
- return "";
- }
- std::get<0>(cached)->second = std::string(local) + "@" + domain + "/" + resource;
- return std::get<0>(cached)->second;
-
-#else
- (void)original;
- return "";
-#endif
-}