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Geoip: Add a fallback to default language (en) in case of unsuccessful lookup with user's language.

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This commit is contained in:
Arkshine 2014-08-01 17:11:33 +02:00
parent ec3ff1deb9
commit 6babcafbec
1 changed files with 25 additions and 2 deletions
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25
dlls/geoip/geoip_util.cpp
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@ -73,7 +73,7 @@ bool lookupByIp(const char *ip, const char **path, MMDB_entry_data_s *result)
int gai_error = 0, mmdb_error = 0; int gai_error = 0, mmdb_error = 0;
MMDB_lookup_result_s lookup = MMDB_lookup_string(&HandleDB, ip, &gai_error, &mmdb_error); MMDB_lookup_result_s lookup = MMDB_lookup_string(&HandleDB, ip, &gai_error, &mmdb_error);
if (gai_error != 0 || MMDB_SUCCESS != mmdb_error || !lookup.found_entry) if (gai_error != 0 || mmdb_error != MMDB_SUCCESS || !lookup.found_entry)
{ {
return false; return false;
} }
@ -82,10 +82,33 @@ bool lookupByIp(const char *ip, const char **path, MMDB_entry_data_s *result)
MMDB_aget_value(&lookup.entry, &entry_data, path); MMDB_aget_value(&lookup.entry, &entry_data, path);
if (!entry_data.has_data) if (!entry_data.has_data)
{
size_t i = 0;
// Dirty fall back to default language ("en") in case provided user's language is not localized.
// Searh "names" position.
while (strcmp(path[i++], "names"));
// No localized entry or we use already default language.
if (!*path[i] || !strcmp(path[i], "en"))
{ {
return false; return false;
} }
// Overwrite user's language.
path[i] = "en";
// Try again.
gai_error = mmdb_error = 0;
MMDB_aget_value(&lookup.entry, &entry_data, path);
if (!entry_data.has_data)
{
return false;
}
}
*result = entry_data; *result = entry_data;
return true; return true;