fix dates with 2 digit years and like Fri Nov 3 13:13:33 2006

This commit is contained in:
Jean-Francois Dockes 2010-09-13 13:18:19 +02:00
parent 8ecea15e4c
commit 98688bb4a6

View File

@ -600,8 +600,8 @@ bool rfc2047_decode(const std::string& in, std::string &out)
// Convert rfc822 date to unix time. A date string normally looks like:
// Mon, 3 Jul 2006 09:51:58 +0200
// But there are many common variations
//
// But there are many close common variations
// And also hopeless things like: Fri Nov 3 13:13:33 2006
time_t rfc2822DateToUxTime(const string& dt)
{
// Strip everything up to first comma if any, we don't need weekday,
@ -617,7 +617,24 @@ time_t rfc2822DateToUxTime(const string& dt)
string date = dt.substr(idx+1);
stringToTokens(date, toks, " \t:");
} else {
// No comma. Enter strangeland
stringToTokens(dt, toks, " \t:");
// Test for date like: Sun Nov 19 06:18:41 2006
// 0 1 2 3 4 5 6
// and change to: 19 Nov 2006 06:18:41
if (toks.size() == 7) {
list<string>::iterator it0 = toks.begin();
if (it0->length() == 3 &&
it0->find_first_of("0123456789") == string::npos) {
list<string>::iterator it2 = it0;
for (int i = 0; i < 2; i++) it2++;
list<string>::iterator it6 = it2;
for (int i = 0; i < 4; i++) it6++;
iter_swap(it0, it2);
iter_swap(it6, it2);
toks.erase(it6);
}
}
}
#if DEBUGDATE
@ -627,17 +644,17 @@ time_t rfc2822DateToUxTime(const string& dt)
DATEDEB((stderr, "\n"));
#endif
if (toks.size() < 6) {
DATEDEB((stderr, "Bad rfc822 date format (toks cnt): [%s]\n",
dt.c_str()));
return (time_t)-1;
}
if (toks.size() == 6) {
// Probably no timezone, sometimes happens
toks.push_back("+0000");
}
if (toks.size() < 7) {
DATEDEB((stderr, "Bad rfc822 date format (toks cnt): [%s]\n",
dt.c_str()));
return (time_t)-1;
}
struct tm tm;
memset(&tm, 0, sizeof(tm));
@ -670,8 +687,15 @@ time_t rfc2822DateToUxTime(const string& dt)
}
it++;
// Year. Struct tm counts from 1900
// Year. Struct tm counts from 1900. 2 char years are quite rare
// but do happen. I've seen 00 happen so count small values from 2000
tm.tm_year = atoi(it->c_str());
if (it->length() == 2) {
if (tm.tm_year < 10)
tm.tm_year += 2000;
else
tm.tm_year += 1900;
}
if (tm.tm_year > 1900)
tm.tm_year -= 1900;
it++;