Mercurial > hg > nginx-quic
view src/core/ngx_parse_time.c @ 7358:170922952477
Removed bgcolor attribute on body in error pages and autoindex.
The bgcolor attribute overrides compatibility settings in browsers
and leads to undesirable behavior when the default font color is set
to white in the browser, since font-color is not also overridden.
author | Nova DasSarma <nova@novalinium.com> |
---|---|
date | Wed, 19 Sep 2018 09:26:47 -0500 |
parents | b38a8f0ca4a2 |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> static ngx_uint_t mday[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; time_t ngx_parse_http_time(u_char *value, size_t len) { u_char *p, *end; ngx_int_t month; ngx_uint_t day, year, hour, min, sec; uint64_t time; enum { no = 0, rfc822, /* Tue, 10 Nov 2002 23:50:13 */ rfc850, /* Tuesday, 10-Dec-02 23:50:13 */ isoc /* Tue Dec 10 23:50:13 2002 */ } fmt; fmt = 0; end = value + len; #if (NGX_SUPPRESS_WARN) day = 32; year = 2038; #endif for (p = value; p < end; p++) { if (*p == ',') { break; } if (*p == ' ') { fmt = isoc; break; } } for (p++; p < end; p++) { if (*p != ' ') { break; } } if (end - p < 18) { return NGX_ERROR; } if (fmt != isoc) { if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9') { return NGX_ERROR; } day = (*p - '0') * 10 + (*(p + 1) - '0'); p += 2; if (*p == ' ') { if (end - p < 18) { return NGX_ERROR; } fmt = rfc822; } else if (*p == '-') { fmt = rfc850; } else { return NGX_ERROR; } p++; } switch (*p) { case 'J': month = *(p + 1) == 'a' ? 0 : *(p + 2) == 'n' ? 5 : 6; break; case 'F': month = 1; break; case 'M': month = *(p + 2) == 'r' ? 2 : 4; break; case 'A': month = *(p + 1) == 'p' ? 3 : 7; break; case 'S': month = 8; break; case 'O': month = 9; break; case 'N': month = 10; break; case 'D': month = 11; break; default: return NGX_ERROR; } p += 3; if ((fmt == rfc822 && *p != ' ') || (fmt == rfc850 && *p != '-')) { return NGX_ERROR; } p++; if (fmt == rfc822) { if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9' || *(p + 2) < '0' || *(p + 2) > '9' || *(p + 3) < '0' || *(p + 3) > '9') { return NGX_ERROR; } year = (*p - '0') * 1000 + (*(p + 1) - '0') * 100 + (*(p + 2) - '0') * 10 + (*(p + 3) - '0'); p += 4; } else if (fmt == rfc850) { if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9') { return NGX_ERROR; } year = (*p - '0') * 10 + (*(p + 1) - '0'); year += (year < 70) ? 2000 : 1900; p += 2; } if (fmt == isoc) { if (*p == ' ') { p++; } if (*p < '0' || *p > '9') { return NGX_ERROR; } day = *p++ - '0'; if (*p != ' ') { if (*p < '0' || *p > '9') { return NGX_ERROR; } day = day * 10 + (*p++ - '0'); } if (end - p < 14) { return NGX_ERROR; } } if (*p++ != ' ') { return NGX_ERROR; } if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9') { return NGX_ERROR; } hour = (*p - '0') * 10 + (*(p + 1) - '0'); p += 2; if (*p++ != ':') { return NGX_ERROR; } if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9') { return NGX_ERROR; } min = (*p - '0') * 10 + (*(p + 1) - '0'); p += 2; if (*p++ != ':') { return NGX_ERROR; } if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9') { return NGX_ERROR; } sec = (*p - '0') * 10 + (*(p + 1) - '0'); if (fmt == isoc) { p += 2; if (*p++ != ' ') { return NGX_ERROR; } if (*p < '0' || *p > '9' || *(p + 1) < '0' || *(p + 1) > '9' || *(p + 2) < '0' || *(p + 2) > '9' || *(p + 3) < '0' || *(p + 3) > '9') { return NGX_ERROR; } year = (*p - '0') * 1000 + (*(p + 1) - '0') * 100 + (*(p + 2) - '0') * 10 + (*(p + 3) - '0'); } if (hour > 23 || min > 59 || sec > 59) { return NGX_ERROR; } if (day == 29 && month == 1) { if ((year & 3) || ((year % 100 == 0) && (year % 400) != 0)) { return NGX_ERROR; } } else if (day > mday[month]) { return NGX_ERROR; } /* * shift new year to March 1 and start months from 1 (not 0), * it is needed for Gauss' formula */ if (--month <= 0) { month += 12; year -= 1; } /* Gauss' formula for Gregorian days since March 1, 1 BC */ time = (uint64_t) ( /* days in years including leap years since March 1, 1 BC */ 365 * year + year / 4 - year / 100 + year / 400 /* days before the month */ + 367 * month / 12 - 30 /* days before the day */ + day - 1 /* * 719527 days were between March 1, 1 BC and March 1, 1970, * 31 and 28 days were in January and February 1970 */ - 719527 + 31 + 28) * 86400 + hour * 3600 + min * 60 + sec; #if (NGX_TIME_T_SIZE <= 4) if (time > 0x7fffffff) { return NGX_ERROR; } #endif return (time_t) time; }