/*
- * $Id$
+ * Copyright (c) 1996-2012 by the citadel.org team
*
- * Miscellaneous routines
+ * This program is open source software. You can redistribute it and/or
+ * modify it under the terms of the GNU General Public License, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
*/
#include "webcit.h"
#include "webserver.h"
+#ifdef HAVE_USELOCALE
+extern locale_t *wc_locales;
+#endif
+
typedef unsigned char byte;
-#define FALSE 0
-#define TRUE 1
+#define FALSE 0 /**< no. */
+#define TRUE 1 /**< yes. */
+
+/*
+ * Wrapper around strftime() or strftime_l()
+ * depending upon how our build is configured.
+ *
+ * s String target buffer
+ * max Maximum size of string target buffer
+ * format strftime() format
+ * tm Input date/time
+ */
+size_t wc_strftime(char *s, size_t max, const char *format, const struct tm *tm)
+{
+
+#ifdef ENABLE_NLS
+#ifdef HAVE_USELOCALE
+ if (wc_locales[WC->selected_language] == NULL) {
+ return strftime(s, max, format, tm);
+ }
+ else {
+ return strftime_l(s, max, format, tm, wc_locales[WC->selected_language]);
+ }
+#else
+ return strftime(s, max, format, tm);
+#endif
+#else
+ return strftime(s, max, format, tm);
+#endif
+}
-char *ascmonths[] = {
- "Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
-};
-char *ascdays[] = {
- "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
-};
/*
* Format a date/time stamp for output
*/
-void fmt_date(char *buf, time_t thetime, int brief)
+void webcit_fmt_date(char *buf, size_t siz, time_t thetime, int Format)
{
struct tm tm;
struct tm today_tm;
time_t today_timet;
- int hour;
- char calhourformat[16];
-
- get_preference("calhourformat", calhourformat, sizeof calhourformat);
+ int time_format;
+ time_format = get_time_format_cached ();
today_timet = time(NULL);
localtime_r(&today_timet, &today_tm);
localtime_r(&thetime, &tm);
- hour = tm.tm_hour;
- if (hour == 0)
- hour = 12;
- else if (hour > 12)
- hour = hour - 12;
-
- buf[0] = 0;
- if (brief) {
-
- if ((tm.tm_year == today_tm.tm_year)
- &&(tm.tm_mon == today_tm.tm_mon)
- &&(tm.tm_mday == today_tm.tm_mday)) {
- if (!strcasecmp(calhourformat, "24")) {
- sprintf(buf, "%2d:%02d",
- tm.tm_hour, tm.tm_min
- );
+ /*
+ * DATEFMT_FULL: full display
+ * DATEFMT_BRIEF: if date == today, show only the time
+ * otherwise, for messages up to 6 months old,
+ * show the month and day, and the time
+ * older than 6 months, show only the date
+ * DATEFMT_RAWDATE: show full date, regardless of age
+ * DATEFMT_LOCALEDATE: show full date as prefered for the locale
+ */
+
+ switch (Format) {
+ case DATEFMT_BRIEF:
+ if ((tm.tm_year == today_tm.tm_year)
+ &&(tm.tm_mon == today_tm.tm_mon)
+ &&(tm.tm_mday == today_tm.tm_mday)) {
+ if (time_format == WC_TIMEFORMAT_24)
+ wc_strftime(buf, siz, "%k:%M", &tm);
+ else
+ wc_strftime(buf, siz, "%l:%M%p", &tm);
+ }
+ else if (today_timet - thetime < 15552000) {
+ if (time_format == WC_TIMEFORMAT_24)
+ wc_strftime(buf, siz, "%b %d %k:%M", &tm);
+ else
+ wc_strftime(buf, siz, "%b %d %l:%M%p", &tm);
}
else {
- sprintf(buf, "%2d:%02d%s",
- hour, tm.tm_min,
- ((tm.tm_hour >= 12) ? "pm" : "am")
- );
+ wc_strftime(buf, siz, "%b %d %Y", &tm);
}
- }
- else {
- sprintf(buf, "%s %d %d",
- ascmonths[tm.tm_mon],
- tm.tm_mday,
- tm.tm_year + 1900
- );
- }
+ break;
+ case DATEFMT_FULL:
+ if (time_format == WC_TIMEFORMAT_24)
+ wc_strftime(buf, siz, "%a %b %d %Y %T %Z", &tm);
+ else
+ wc_strftime(buf, siz, "%a %b %d %Y %r %Z", &tm);
+ break;
+ case DATEFMT_RAWDATE:
+ wc_strftime(buf, siz, "%a %b %d %Y", &tm);
+ break;
+ case DATEFMT_LOCALEDATE:
+ wc_strftime(buf, siz, "%x", &tm);
+ break;
}
- else {
- if (!strcasecmp(calhourformat, "24")) {
- sprintf(buf, "%s %d %d %2d:%02d",
- ascmonths[tm.tm_mon],
- tm.tm_mday,
- tm.tm_year + 1900,
- tm.tm_hour, tm.tm_min
- );
- }
- else {
- sprintf(buf, "%s %d %d %2d:%02d%s",
- ascmonths[tm.tm_mon],
- tm.tm_mday,
- tm.tm_year + 1900,
- hour, tm.tm_min, ((tm.tm_hour >= 12) ? "pm" : "am")
- );
- }
+}
+
+
+/*
+ * Try to guess whether the user will prefer 12 hour or 24 hour time based on the locale.
+ */
+long guess_calhourformat(void) {
+ char buf[64];
+ struct tm tm;
+ memset(&tm, 0, sizeof tm);
+ wc_strftime(buf, 64, "%X", &tm);
+ if (buf[strlen(buf)-1] == 'M') {
+ return 12;
}
+ return 24;
}
+/*
+ * learn the users timeformat preference.
+ */
+int get_time_format_cached (void)
+{
+ long calhourformat;
+ int *time_format_cache;
+ time_format_cache = &(WC->time_format_cache);
+ if (*time_format_cache == WC_TIMEFORMAT_NONE)
+ {
+ get_pref_long("calhourformat", &calhourformat, 99);
+
+ /* If we don't know the user's time format preference yet,
+ * make a guess based on the locale.
+ */
+ if (calhourformat == 99) {
+ calhourformat = guess_calhourformat();
+ }
+
+ /* Now set the preference */
+ if (calhourformat == 24)
+ *time_format_cache = WC_TIMEFORMAT_24;
+ else
+ *time_format_cache = WC_TIMEFORMAT_AMPM;
+ }
+ return *time_format_cache;
+}
/*
* Format TIME ONLY for output
+ * buf the output buffer
+ * thetime time to format into buf
*/
-void fmt_time(char *buf, time_t thetime)
+void fmt_time(char *buf, size_t siz, time_t thetime)
{
struct tm *tm;
int hour;
- char calhourformat[16];
-
- get_preference("calhourformat", calhourformat, sizeof calhourformat);
-
+ int time_format;
+
+ time_format = get_time_format_cached ();
buf[0] = 0;
tm = localtime(&thetime);
hour = tm->tm_hour;
else if (hour > 12)
hour = hour - 12;
- if (!strcasecmp(calhourformat, "24")) {
- sprintf(buf, "%2d:%02d",
+ if (time_format == WC_TIMEFORMAT_24) {
+ snprintf(buf, siz, "%d:%02d",
tm->tm_hour, tm->tm_min
);
}
else {
- sprintf(buf, "%d:%02d%s",
+ snprintf(buf, siz, "%d:%02d%s",
hour, tm->tm_min, ((tm->tm_hour > 12) ? "pm" : "am")
);
}
-/*
- * Format a date/time stamp to the format used in HTTP headers
- */
-void httpdate(char *buf, time_t thetime)
-{
- struct tm *tm;
-
- buf[0] = 0;
- tm = localtime(&thetime);
-
- sprintf(buf, "%s, %02d %s %4d %02d:%02d:%02d",
- ascdays[tm->tm_wday],
- tm->tm_mday,
- ascmonths[tm->tm_mon],
- tm->tm_year + 1900, tm->tm_hour, tm->tm_min, tm->tm_sec);
-}
-
-
/*
* Break down the timestamp used in HTTP headers
* Should read rfc1123 and rfc850 dates OK
* FIXME won't read asctime
* Doesn't understand timezone, but we only should be using GMT/UTC anyway
*/
-time_t httpdate_to_timestamp(const char *buf)
+time_t httpdate_to_timestamp(StrBuf *buf)
{
time_t t = 0;
struct tm tt;
- char *c;
+ const char *c;
- /* Skip day of week, to number */
- for (c = buf; *c != ' '; c++)
+ /** Skip day of week, to number */
+ for (c = ChrPtr(buf); *c != ' '; c++)
;
c++;
+
+ memset(&tt, 0, sizeof(tt));
/* Get day of month */
tt.tm_mday = atoi(c);
tt.tm_sec = atoi(c);
for (; *c && *c != ' '; c++);
- /* Got everything; let's go */
- tt.tm_isdst = 0;
+ /* Got everything; let's go. The global 'timezone' variable contains the
+ * local timezone's offset from UTC, in seconds, so we apply that to tm_sec.
+ * This produces an illegal value for tm_sec, but mktime() will normalize
+ * it for us. This eliminates the need to temporarily switch the environment
+ * variable TZ to UTC, which is good because it fails to switch back on
+ * some systems.
+ */
+ tzset();
+ tt.tm_sec = tt.tm_sec - (int)timezone;
t = mktime(&tt);
return t;
}
+
+
+void LoadTimeformatSettingsCache(StrBuf *Preference, long lvalue)
+{
+ int *time_format_cache;
+
+ time_format_cache = &(WC->time_format_cache);
+ if (lvalue == 24)
+ *time_format_cache = WC_TIMEFORMAT_24;
+ else
+ *time_format_cache = WC_TIMEFORMAT_AMPM;
+}
+
+
+
+void
+InitModule_DATETIME
+(void)
+{
+ RegisterPreference("calhourformat", _("Time format"), PRF_INT, LoadTimeformatSettingsCache);
+
+
+}
projects / citadel.git / blobdiff