--- /dev/null
+/*
+ +----------------------------------------------------------------------+
+ | PECL :: http |
+ +----------------------------------------------------------------------+
+ | This source file is subject to version 3.0 of the PHP license, that |
+ | is bundled with this package in the file LICENSE, and is available |
+ | through the world-wide-web at http://www.php.net/license/3_0.txt. |
+ | If you did not receive a copy of the PHP license and are unable to |
+ | obtain it through the world-wide-web, please send a note to |
+ | license@php.net so we can mail you a copy immediately. |
+ +----------------------------------------------------------------------+
+ | Copyright (c) 2004-2005 Michael Wallner <mike@php.net> |
+ +----------------------------------------------------------------------+
+*/
+
+/* $Id$ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <ctype.h>
+
+#include "php.h"
+#include "php_http.h"
+#include "php_http_std_defs.h"
+
+static int check_day(char *day, size_t len);
+static int check_month(char *month);
+static int check_tzone(char *tzone);
+
+/* {{{ day/month names */
+static const char *days[] = {
+ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
+};
+static const char *wkdays[] = {
+ "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"
+};
+static const char *weekdays[] = {
+ "Monday", "Tuesday", "Wednesday",
+ "Thursday", "Friday", "Saturday", "Sunday"
+};
+static const char *months[] = {
+ "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+ "Jul", "Aug", "Sep", "Okt", "Nov", "Dec"
+};
+enum assume_next {
+ DATE_MDAY,
+ DATE_YEAR,
+ DATE_TIME
+};
+static const struct time_zone {
+ const char *name;
+ const int offset;
+} time_zones[] = {
+ {"GMT", 0}, /* Greenwich Mean */
+ {"UTC", 0}, /* Universal (Coordinated) */
+ {"WET", 0}, /* Western European */
+ {"BST", 0}, /* British Summer */
+ {"WAT", 60}, /* West Africa */
+ {"AST", 240}, /* Atlantic Standard */
+ {"ADT", 240}, /* Atlantic Daylight */
+ {"EST", 300}, /* Eastern Standard */
+ {"EDT", 300}, /* Eastern Daylight */
+ {"CST", 360}, /* Central Standard */
+ {"CDT", 360}, /* Central Daylight */
+ {"MST", 420}, /* Mountain Standard */
+ {"MDT", 420}, /* Mountain Daylight */
+ {"PST", 480}, /* Pacific Standard */
+ {"PDT", 480}, /* Pacific Daylight */
+ {"YST", 540}, /* Yukon Standard */
+ {"YDT", 540}, /* Yukon Daylight */
+ {"HST", 600}, /* Hawaii Standard */
+ {"HDT", 600}, /* Hawaii Daylight */
+ {"CAT", 600}, /* Central Alaska */
+ {"AHST", 600}, /* Alaska-Hawaii Standard */
+ {"NT", 660}, /* Nome */
+ {"IDLW", 720}, /* International Date Line West */
+ {"CET", -60}, /* Central European */
+ {"MET", -60}, /* Middle European */
+ {"MEWT", -60}, /* Middle European Winter */
+ {"MEST", -120}, /* Middle European Summer */
+ {"CEST", -120}, /* Central European Summer */
+ {"MESZ", -60}, /* Middle European Summer */
+ {"FWT", -60}, /* French Winter */
+ {"FST", -60}, /* French Summer */
+ {"EET", -120}, /* Eastern Europe, USSR Zone 1 */
+ {"WAST", -420}, /* West Australian Standard */
+ {"WADT", -420}, /* West Australian Daylight */
+ {"CCT", -480}, /* China Coast, USSR Zone 7 */
+ {"JST", -540}, /* Japan Standard, USSR Zone 8 */
+ {"EAST", -600}, /* Eastern Australian Standard */
+ {"EADT", -600}, /* Eastern Australian Daylight */
+ {"GST", -600}, /* Guam Standard, USSR Zone 9 */
+ {"NZT", -720}, /* New Zealand */
+ {"NZST", -720}, /* New Zealand Standard */
+ {"NZDT", -720}, /* New Zealand Daylight */
+ {"IDLE", -720}, /* International Date Line East */
+};
+/* }}} */
+
+/* {{{ Day/Month/TZ checks for http_parse_date()
+ Originally by libcurl, Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al. */
+static int check_day(char *day, size_t len)
+{
+ int i;
+ const char * const *check = (len > 3) ? &weekdays[0] : &wkdays[0];
+ for (i = 0; i < 7; i++) {
+ if (!strcmp(day, check[0])) {
+ return i;
+ }
+ check++;
+ }
+ return -1;
+}
+
+static int check_month(char *month)
+{
+ int i;
+ const char * const *check = &months[0];
+ for (i = 0; i < 12; i++) {
+ if (!strcmp(month, check[0])) {
+ return i;
+ }
+ check++;
+ }
+ return -1;
+}
+
+/* return the time zone offset between GMT and the input one, in number
+ of seconds or -1 if the timezone wasn't found/legal */
+
+static int check_tzone(char *tzone)
+{
+ int i;
+ const struct time_zone *check = time_zones;
+ for (i = 0; i < sizeof(time_zones) / sizeof(time_zones[0]); i++) {
+ if (!strcmp(tzone, check->name)) {
+ return check->offset * 60;
+ }
+ check++;
+ }
+ return -1;
+}
+/* }}} */
+
+/* {{{ char *http_date(time_t) */
+PHP_HTTP_API char *_http_date(time_t t TSRMLS_DC)
+{
+ struct tm *gmtime, tmbuf;
+
+ if (gmtime = php_gmtime_r(&t, &tmbuf)) {
+ char *date = ecalloc(1, 31);
+ snprintf(date, 30,
+ "%s, %02d %s %04d %02d:%02d:%02d GMT",
+ days[gmtime->tm_wday], gmtime->tm_mday,
+ months[gmtime->tm_mon], gmtime->tm_year + 1900,
+ gmtime->tm_hour, gmtime->tm_min, gmtime->tm_sec
+ );
+ return date;
+ }
+
+ return NULL;
+}
+/* }}} */
+
+/* {{{ time_t http_parse_date(char *)
+ Originally by libcurl, Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al. */
+PHP_HTTP_API time_t _http_parse_date(const char *date)
+{
+ time_t t = 0;
+ int tz_offset = -1, year = -1, month = -1, monthday = -1, weekday = -1,
+ hours = -1, minutes = -1, seconds = -1;
+ struct tm tm;
+ enum assume_next dignext = DATE_MDAY;
+ const char *indate = date;
+
+ int found = 0, part = 0; /* max 6 parts */
+
+ while (*date && (part < 6)) {
+ int found = 0;
+
+ while (*date && !isalnum(*date)) {
+ date++;
+ }
+
+ if (isalpha(*date)) {
+ /* a name coming up */
+ char buf[32] = "";
+ size_t len;
+ sscanf(date, "%31[A-Za-z]", buf);
+ len = strlen(buf);
+
+ if (weekday == -1) {
+ weekday = check_day(buf, len);
+ if (weekday != -1) {
+ found = 1;
+ }
+ }
+
+ if (!found && (month == -1)) {
+ month = check_month(buf);
+ if (month != -1) {
+ found = 1;
+ }
+ }
+
+ if (!found && (tz_offset == -1)) {
+ /* this just must be a time zone string */
+ tz_offset = check_tzone(buf);
+ if (tz_offset != -1) {
+ found = 1;
+ }
+ }
+
+ if (!found) {
+ return -1; /* bad string */
+ }
+ date += len;
+ }
+ else if (isdigit(*date)) {
+ /* a digit */
+ int val;
+ char *end;
+ if ((seconds == -1) &&
+ (3 == sscanf(date, "%02d:%02d:%02d", &hours, &minutes, &seconds))) {
+ /* time stamp! */
+ date += 8;
+ found = 1;
+ }
+ else {
+ val = (int) strtol(date, &end, 10);
+
+ if ((tz_offset == -1) && ((end - date) == 4) && (val < 1300) &&
+ (indate < date) && ((date[-1] == '+' || date[-1] == '-'))) {
+ /* four digits and a value less than 1300 and it is preceeded with
+ a plus or minus. This is a time zone indication. */
+ found = 1;
+ tz_offset = (val / 100 * 60 + val % 100) * 60;
+
+ /* the + and - prefix indicates the local time compared to GMT,
+ this we need ther reversed math to get what we want */
+ tz_offset = date[-1] == '+' ? -tz_offset : tz_offset;
+ }
+
+ if (((end - date) == 8) && (year == -1) && (month == -1) && (monthday == -1)) {
+ /* 8 digits, no year, month or day yet. This is YYYYMMDD */
+ found = 1;
+ year = val / 10000;
+ month = (val % 10000) / 100 - 1; /* month is 0 - 11 */
+ monthday = val % 100;
+ }
+
+ if (!found && (dignext == DATE_MDAY) && (monthday == -1)) {
+ if ((val > 0) && (val < 32)) {
+ monthday = val;
+ found = 1;
+ }
+ dignext = DATE_YEAR;
+ }
+
+ if (!found && (dignext == DATE_YEAR) && (year == -1)) {
+ year = val;
+ found = 1;
+ if (year < 1900) {
+ year += year > 70 ? 1900 : 2000;
+ }
+ if(monthday == -1) {
+ dignext = DATE_MDAY;
+ }
+ }
+
+ if (!found) {
+ return -1;
+ }
+
+ date = end;
+ }
+ }
+
+ part++;
+ }
+
+ if (-1 == seconds) {
+ seconds = minutes = hours = 0; /* no time, make it zero */
+ }
+
+ if ((-1 == monthday) || (-1 == month) || (-1 == year)) {
+ /* lacks vital info, fail */
+ return -1;
+ }
+
+ if (sizeof(time_t) < 5) {
+ /* 32 bit time_t can only hold dates to the beginning of 2038 */
+ if (year > 2037) {
+ return 0x7fffffff;
+ }
+ }
+
+ tm.tm_sec = seconds;
+ tm.tm_min = minutes;
+ tm.tm_hour = hours;
+ tm.tm_mday = monthday;
+ tm.tm_mon = month;
+ tm.tm_year = year - 1900;
+ tm.tm_wday = 0;
+ tm.tm_yday = 0;
+ tm.tm_isdst = 0;
+
+ t = mktime(&tm);
+
+ /* time zone adjust */
+ if (t != -1) {
+ struct tm *gmt, keeptime2;
+ long delta;
+ time_t t2;
+
+ if(!(gmt = php_gmtime_r(&t, &keeptime2))) {
+ return -1; /* illegal date/time */
+ }
+
+ t2 = mktime(gmt);
+
+ /* Add the time zone diff (between the given timezone and GMT) and the
+ diff between the local time zone and GMT. */
+ delta = (tz_offset != -1 ? tz_offset : 0) + (t - t2);
+
+ if((delta > 0) && (t + delta < t)) {
+ return -1; /* time_t overflow */
+ }
+
+ t += delta;
+ }
+
+ return t;
+}
+/* }}} */
+
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: sw=4 ts=4 fdm=marker
+ * vim<600: sw=4 ts=4
+ */
+
projects / m6w6 / ext-http / blobdiff