From 77625347d53494ccf10f2430eee5aaf4a6483688 Mon Sep 17 00:00:00 2001 From: jerenkrantz Date: Thu, 31 May 2001 04:30:36 +0000 Subject: Copied from httpd-2.0 without any changes httpd-2.0/include/util_date.h --> include/apr_date.h httpd-2.0/server/util_date.c --> misc/apr_date.c Obtained from: Apache httpd 2.0.18 git-svn-id: http://svn.apache.org/repos/asf/apr/apr-util/trunk@58270 13f79535-47bb-0310-9956-ffa450edef68 --- include/apr_date.h | 114 ++++++++++++++++++++ misc/apr_date.c | 306 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 420 insertions(+) create mode 100644 include/apr_date.h create mode 100644 misc/apr_date.c diff --git a/include/apr_date.h b/include/apr_date.h new file mode 100644 index 00000000..46dbb6bb --- /dev/null +++ b/include/apr_date.h @@ -0,0 +1,114 @@ +/* ==================================================================== + * The Apache Software License, Version 1.1 + * + * Copyright (c) 2000-2001 The Apache Software Foundation. All rights + * reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The end-user documentation included with the redistribution, + * if any, must include the following acknowledgment: + * "This product includes software developed by the + * Apache Software Foundation (http://www.apache.org/)." + * Alternately, this acknowledgment may appear in the software itself, + * if and wherever such third-party acknowledgments normally appear. + * + * 4. The names "Apache" and "Apache Software Foundation" must + * not be used to endorse or promote products derived from this + * software without prior written permission. For written + * permission, please contact apache@apache.org. + * + * 5. Products derived from this software may not be called "Apache", + * nor may "Apache" appear in their name, without prior written + * permission of the Apache Software Foundation. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Software Foundation. For more + * information on the Apache Software Foundation, please see + * . + * + * Portions of this software are based upon public domain software + * originally written at the National Center for Supercomputing Applications, + * University of Illinois, Urbana-Champaign. + */ + +#ifndef APACHE_UTIL_DATE_H +#define APACHE_UTIL_DATE_H + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @package Apache date routines + */ + +/* + * util_date.h: prototypes for date parsing utility routines + */ + +#include "apr_time.h" + +#define BAD_DATE (apr_time_t)0 + +/** + * Compare a string to a mask + * @param data The string to compare + * @mask Mask characters (arbitrary maximum is 256 characters, just in case): + * 
+ *   @ - uppercase letter
+ *   $ - lowercase letter
+ *   & - hex digit
+ *   # - digit
+ *   ~ - digit or space
+ *   * - swallow remaining characters
+ *   - exact match for any other character
+ *
+ * @return 1 if the string matches, 0 otherwise + * @deffunc int ap_checkmask(const char *data, const char *mask) + */ +AP_DECLARE(int) ap_checkmask(const char *data, const char *mask); + +/** + * Parses an HTTP date in one of three standard forms: + * 
+ *     Sun, 06 Nov 1994 08:49:37 GMT  ; RFC 822, updated by RFC 1123
+ *     Sunday, 06-Nov-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036
+ *     Sun Nov  6 08:49:37 1994       ; ANSI C's asctime() format
+ *
+ * @param date The date in one of the three formats above + * @return the apr_time_t number of microseconds since 1 Jan 1970 GMT, or + * 0 if this would be out of range or if the date is invalid. + * @deffunc apr_time_t ap_parseHTTPdate(const char *date) + */ +AP_DECLARE(apr_time_t) ap_parseHTTPdate(const char *date); + +#ifdef __cplusplus +} +#endif + +#endif /* !APACHE_UTIL_DATE_H */ diff --git a/misc/apr_date.c b/misc/apr_date.c new file mode 100644 index 00000000..89ceaa5d --- /dev/null +++ b/misc/apr_date.c @@ -0,0 +1,306 @@ +/* ==================================================================== + * The Apache Software License, Version 1.1 + * + * Copyright (c) 2000-2001 The Apache Software Foundation. All rights + * reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The end-user documentation included with the redistribution, + * if any, must include the following acknowledgment: + * "This product includes software developed by the + * Apache Software Foundation (http://www.apache.org/)." + * Alternately, this acknowledgment may appear in the software itself, + * if and wherever such third-party acknowledgments normally appear. + * + * 4. The names "Apache" and "Apache Software Foundation" must + * not be used to endorse or promote products derived from this + * software without prior written permission. For written + * permission, please contact apache@apache.org. + * + * 5. Products derived from this software may not be called "Apache", + * nor may "Apache" appear in their name, without prior written + * permission of the Apache Software Foundation. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Software Foundation. For more + * information on the Apache Software Foundation, please see + * . + * + * Portions of this software are based upon public domain software + * originally written at the National Center for Supercomputing Applications, + * University of Illinois, Urbana-Champaign. + */ + +/* + * util_date.c: date parsing utility routines + * These routines are (hopefully) platform independent. + * + * 27 Oct 1996 Roy Fielding + * Extracted (with many modifications) from mod_proxy.c and + * tested with over 50,000 randomly chosen valid date strings + * and several hundred variations of invalid date strings. + * + */ + +#include "apr.h" +#include "apr_lib.h" + +#define APR_WANT_STRFUNC +#include "apr_want.h" + +#if APR_HAVE_CTYPE_H +#include +#endif + +#define CORE_PRIVATE + +#include "ap_config.h" +#include "util_date.h" + +/* + * Compare a string to a mask + * Mask characters (arbitrary maximum is 256 characters, just in case): + * @ - uppercase letter + * $ - lowercase letter + * & - hex digit + * # - digit + * ~ - digit or space + * * - swallow remaining characters + * - exact match for any other character + */ +AP_DECLARE(int) ap_checkmask(const char *data, const char *mask) +{ + int i; + char d; + + for (i = 0; i < 256; i++) { + d = data[i]; + switch (mask[i]) { + case '\0': + return (d == '\0'); + + case '*': + return 1; + + case '@': + if (!apr_isupper(d)) + return 0; + break; + case '$': + if (!apr_islower(d)) + return 0; + break; + case '#': + if (!apr_isdigit(d)) + return 0; + break; + case '&': + if (!apr_isxdigit(d)) + return 0; + break; + case '~': + if ((d != ' ') && !apr_isdigit(d)) + return 0; + break; + default: + if (mask[i] != d) + return 0; + break; + } + } + return 0; /* We only get here if mask is corrupted (exceeds 256) */ +} + + +/* + * Parses an HTTP date in one of three standard forms: + * + * Sun, 06 Nov 1994 08:49:37 GMT ; RFC 822, updated by RFC 1123 + * Sunday, 06-Nov-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036 + * Sun Nov 6 08:49:37 1994 ; ANSI C's asctime() format + * + * and returns the time_t number of seconds since 1 Jan 1970 GMT, or + * 0 if this would be out of range or if the date is invalid. + * + * The restricted HTTP syntax is + * + * HTTP-date = rfc1123-date | rfc850-date | asctime-date + * + * rfc1123-date = wkday "," SP date1 SP time SP "GMT" + * rfc850-date = weekday "," SP date2 SP time SP "GMT" + * asctime-date = wkday SP date3 SP time SP 4DIGIT + * + * date1 = 2DIGIT SP month SP 4DIGIT + * ; day month year (e.g., 02 Jun 1982) + * date2 = 2DIGIT "-" month "-" 2DIGIT + * ; day-month-year (e.g., 02-Jun-82) + * date3 = month SP ( 2DIGIT | ( SP 1DIGIT )) + * ; month day (e.g., Jun 2) + * + * time = 2DIGIT ":" 2DIGIT ":" 2DIGIT + * ; 00:00:00 - 23:59:59 + * + * wkday = "Mon" | "Tue" | "Wed" + * | "Thu" | "Fri" | "Sat" | "Sun" + * + * weekday = "Monday" | "Tuesday" | "Wednesday" + * | "Thursday" | "Friday" | "Saturday" | "Sunday" + * + * month = "Jan" | "Feb" | "Mar" | "Apr" + * | "May" | "Jun" | "Jul" | "Aug" + * | "Sep" | "Oct" | "Nov" | "Dec" + * + * However, for the sake of robustness (and Netscapeness), we ignore the + * weekday and anything after the time field (including the timezone). + * + * This routine is intended to be very fast; 10x faster than using sscanf. + * + * Originally from Andrew Daviel , 29 Jul 96 + * but many changes since then. + * + */ +AP_DECLARE(apr_time_t) ap_parseHTTPdate(const char *date) +{ + apr_exploded_time_t ds; + apr_time_t result; + int mint, mon; + const char *monstr, *timstr; + static const int months[12] = + { + ('J' << 16) | ('a' << 8) | 'n', ('F' << 16) | ('e' << 8) | 'b', + ('M' << 16) | ('a' << 8) | 'r', ('A' << 16) | ('p' << 8) | 'r', + ('M' << 16) | ('a' << 8) | 'y', ('J' << 16) | ('u' << 8) | 'n', + ('J' << 16) | ('u' << 8) | 'l', ('A' << 16) | ('u' << 8) | 'g', + ('S' << 16) | ('e' << 8) | 'p', ('O' << 16) | ('c' << 8) | 't', + ('N' << 16) | ('o' << 8) | 'v', ('D' << 16) | ('e' << 8) | 'c'}; + + if (!date) + return BAD_DATE; + + while (*date && apr_isspace(*date)) /* Find first non-whitespace char */ + ++date; + + if (*date == '\0') + return BAD_DATE; + + if ((date = strchr(date, ' ')) == NULL) /* Find space after weekday */ + return BAD_DATE; + + ++date; /* Now pointing to first char after space, which should be */ + /* start of the actual date information for all 3 formats. */ + + if (ap_checkmask(date, "## @$$ #### ##:##:## *")) { /* RFC 1123 format */ + ds.tm_year = ((date[7] - '0') * 10 + (date[8] - '0') - 19) * 100; + if (ds.tm_year < 0) + return BAD_DATE; + + ds.tm_year += ((date[9] - '0') * 10) + (date[10] - '0'); + + ds.tm_mday = ((date[0] - '0') * 10) + (date[1] - '0'); + + monstr = date + 3; + timstr = date + 12; + } + else if (ap_checkmask(date, "##-@$$-## ##:##:## *")) { /* RFC 850 format */ + ds.tm_year = ((date[7] - '0') * 10) + (date[8] - '0'); + if (ds.tm_year < 70) + ds.tm_year += 100; + + ds.tm_mday = ((date[0] - '0') * 10) + (date[1] - '0'); + + monstr = date + 3; + timstr = date + 10; + } + else if (ap_checkmask(date, "@$$ ~# ##:##:## ####*")) { /* asctime format */ + ds.tm_year = ((date[16] - '0') * 10 + (date[17] - '0') - 19) * 100; + if (ds.tm_year < 0) + return BAD_DATE; + + ds.tm_year += ((date[18] - '0') * 10) + (date[19] - '0'); + + if (date[4] == ' ') + ds.tm_mday = 0; + else + ds.tm_mday = (date[4] - '0') * 10; + + ds.tm_mday += (date[5] - '0'); + + monstr = date; + timstr = date + 7; + } + else + return BAD_DATE; + + if (ds.tm_mday <= 0 || ds.tm_mday > 31) + return BAD_DATE; + + ds.tm_hour = ((timstr[0] - '0') * 10) + (timstr[1] - '0'); + ds.tm_min = ((timstr[3] - '0') * 10) + (timstr[4] - '0'); + ds.tm_sec = ((timstr[6] - '0') * 10) + (timstr[7] - '0'); + + if ((ds.tm_hour > 23) || (ds.tm_min > 59) || (ds.tm_sec > 61)) + return BAD_DATE; + + mint = (monstr[0] << 16) | (monstr[1] << 8) | monstr[2]; + for (mon = 0; mon < 12; mon++) + if (mint == months[mon]) + break; + if (mon == 12) + return BAD_DATE; + + if ((ds.tm_mday == 31) && (mon == 3 || mon == 5 || mon == 8 || mon == 10)) + return BAD_DATE; + + /* February gets special check for leapyear */ + + if ((mon == 1) && + ((ds.tm_mday > 29) + || ((ds.tm_mday == 29) + && ((ds.tm_year & 3) + || (((ds.tm_year % 100) == 0) + && (((ds.tm_year % 400) != 100))))))) + return BAD_DATE; + + ds.tm_mon = mon; + + /* ap_mplode_time uses tm_usec and tm_gmtoff fields, but they haven't + * been set yet. + * It should be safe to just zero out these values. + * tm_usec is the number of microseconds into the second. HTTP only + * cares about second granularity. + * tm_gmtoff is the number of seconds off of GMT the time is. By + * definition all times going through this function are in GMT, so this + * is zero. + */ + ds.tm_usec = 0; + ds.tm_gmtoff = 0; + if (apr_implode_time(&result, &ds) != APR_SUCCESS) + return BAD_DATE; + + return result; +} -- cgit v1.2.1