git.m6w6.name Git - m6w6/ext-http/blob - src/php_http_version.c

   1 /*
   2     +--------------------------------------------------------------------+
   3     | PECL :: http                                                       |
   4     +--------------------------------------------------------------------+
   5     | Redistribution and use in source and binary forms, with or without |
   6     | modification, are permitted provided that the conditions mentioned |
   7     | in the accompanying LICENSE file are met.                          |
   8     +--------------------------------------------------------------------+
   9     | Copyright (c) 2004-2014, Michael Wallner <mike@php.net>            |
  10     +--------------------------------------------------------------------+
  11 */
  12
  13 #include "php_http_api.h"
  14
  15 php_http_version_t *php_http_version_init(php_http_version_t *v, unsigned major, unsigned minor)
  16 {
  17         if (!v) {
  18                 v = emalloc(sizeof(*v));
  19         }
  20
  21         v->major = major;
  22         v->minor = minor;
  23
  24         return v;
  25 }
  26
  27 php_http_version_t *php_http_version_parse(php_http_version_t *v, const char *str)
  28 {
  29         long major, minor;
  30         char separator = 0;
  31         register const char *ptr = str;
  32
  33         switch (*ptr) {
  34         case 'h':
  35         case 'H':
  36                 ++ptr; if (*ptr != 't' && *ptr != 'T') break;
  37                 ++ptr; if (*ptr != 't' && *ptr != 'T') break;
  38                 ++ptr; if (*ptr != 'p' && *ptr != 'P') break;
  39                 ++ptr; if (*ptr != '/') break;
  40                 ++ptr;
  41                 /* no break */
  42         default:
  43                 /* rfc7230#2.6 The HTTP version number consists of two decimal digits separated by a "." (period or decimal point) */
  44                 major = *ptr++ - '0';
  45                 if (major >= 0 && major <= 9) {
  46                         separator = *ptr++;
  47                         switch (separator) {
  48                         default:
  49                                 php_error_docref(NULL, E_NOTICE, "Non-standard version separator '%c' in HTTP protocol version '%s'", separator, ptr - 2);
  50                                 /* no break */
  51                         case '.':
  52                         case ',':
  53                                 minor = *ptr - '0';
  54                                 break;
  55
  56                         case ' ':
  57                                 if (major > 1) {
  58                                         minor = 0;
  59                                 } else {
  60                                         goto error;
  61                                 }
  62                         }
  63                         if (minor >= 0 && minor <= 9) {
  64                                 return php_http_version_init(v, major, minor);
  65                         }
  66                 }
  67         }
  68
  69         error:
  70         php_error_docref(NULL, E_WARNING, "Could not parse HTTP protocol version '%s'", str);
  71         return NULL;
  72 }
  73
  74 void php_http_version_to_string(php_http_version_t *v, char **str, size_t *len, const char *pre, const char *post)
  75 {
  76         /* different semantics for different versions */
  77         if (v->major == 2) {
  78                 *len = spprintf(str, 0, "%s2%s", STR_PTR(pre), STR_PTR(post));
  79         } else  {
  80                 *len = spprintf(str, 0, "%s%u.%u%s", STR_PTR(pre), v->major, v->minor, STR_PTR(post));
  81         }
  82 }
  83
  84 void php_http_version_dtor(php_http_version_t *v)
  85 {
  86         (void) v;
  87 }
  88
  89 void php_http_version_free(php_http_version_t **v)
  90 {
  91         if (*v) {
  92                 php_http_version_dtor(*v);
  93                 efree(*v);
  94                 *v = NULL;
  95         }
  96 }
  97
  98 /*
  99  * Local variables:
 100  * tab-width: 4
 101  * c-basic-offset: 4
 102  * End:
 103  * vim600: noet sw=4 ts=4 fdm=marker
 104  * vim<600: noet sw=4 ts=4
 105  */
 106