git.m6w6.name Git - m6w6/ext-http/blob - src/php_http_info.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_info_t *php_http_info_init(php_http_info_t *i TSRMLS_DC)
  16 {
  17         if (!i) {
  18                 i = emalloc(sizeof(*i));
  19         }
  20
  21         memset(i, 0, sizeof(*i));
  22
  23         return i;
  24 }
  25
  26 void php_http_info_dtor(php_http_info_t *i)
  27 {
  28         switch (i->type) {
  29                 case PHP_HTTP_REQUEST:
  30                         PTR_SET(PHP_HTTP_INFO(i).request.method, NULL);
  31                         PTR_SET(PHP_HTTP_INFO(i).request.url, NULL);
  32                         break;
  33
  34                 case PHP_HTTP_RESPONSE:
  35                         PTR_SET(PHP_HTTP_INFO(i).response.status, NULL);
  36                         break;
  37
  38                 default:
  39                         break;
  40         }
  41 }
  42
  43 void php_http_info_free(php_http_info_t **i)
  44 {
  45         if (*i) {
  46                 php_http_info_dtor(*i);
  47                 efree(*i);
  48                 *i = NULL;
  49         }
  50 }
  51
  52 php_http_info_t *php_http_info_parse(php_http_info_t *info, const char *pre_header TSRMLS_DC)
  53 {
  54         const char *end, *http;
  55         zend_bool free_info = !info;
  56
  57         /* sane parameter */
  58         if ((!pre_header) || (!*pre_header)) {
  59                 return NULL;
  60         }
  61
  62         /* where's the end of the line */
  63         if (!(end = php_http_locate_eol(pre_header, NULL))) {
  64                 end = pre_header + strlen(pre_header);
  65         }
  66
  67         /* there must be HTTP/1.x in the line */
  68         if (!(http = php_http_locate_str(pre_header, end - pre_header, "HTTP/", lenof("HTTP/")))) {
  69                 return NULL;
  70         }
  71
  72         info = php_http_info_init(info TSRMLS_CC);
  73
  74         /* and nothing than SPACE or NUL after HTTP/X.x */
  75         if (!php_http_version_parse(&info->http.version, http TSRMLS_CC)
  76         ||      (http[lenof("HTTP/X.x")] && (!PHP_HTTP_IS_CTYPE(space, http[lenof("HTTP/X.x")])))) {
  77                 if (free_info) {
  78                         php_http_info_free(&info);
  79                 }
  80                 return NULL;
  81         }
  82
  83 #if 0
  84         {
  85                 char *line = estrndup(pre_header, end - pre_header);
  86                 fprintf(stderr, "http_parse_info('%s')\n", line);
  87                 efree(line);
  88         }
  89 #endif
  90
  91         /* is response */
  92         if (pre_header == http) {
  93                 const char *status = NULL, *code = http + sizeof("HTTP/X.x");
  94
  95                 info->type = PHP_HTTP_RESPONSE;
  96                 while (' ' == *code) ++code;
  97                 if (code && end > code) {
  98                         /* rfc7230#3.1.2 The status-code element is a 3-digit integer code */
  99                         PHP_HTTP_INFO(info).response.code = 100*(*code++ - '0');
 100                         PHP_HTTP_INFO(info).response.code += 10*(*code++ - '0');
 101                         PHP_HTTP_INFO(info).response.code +=     *code++ - '0';
 102                         if (PHP_HTTP_INFO(info).response.code < 100 || PHP_HTTP_INFO(info).response.code > 599) {
 103                                 if (free_info) {
 104                                         php_http_info_free(&info);
 105                                 }
 106                                 return NULL;
 107                         }
 108                         status = code;
 109                 } else {
 110                         PHP_HTTP_INFO(info).response.code = 0;
 111                 }
 112                 if (status && end > status) {
 113                         while (' ' == *status) ++status;
 114                         PHP_HTTP_INFO(info).response.status = estrndup(status, end - status);
 115                 } else {
 116                         PHP_HTTP_INFO(info).response.status = NULL;
 117                 }
 118
 119                 return info;
 120         }
 121
 122         /* is request */
 123         else if (*(http - 1) == ' ' && (!http[lenof("HTTP/X.x")] || http[lenof("HTTP/X.x")] == '\r' || http[lenof("HTTP/X.x")] == '\n')) {
 124                 const char *url = strchr(pre_header, ' ');
 125
 126                 info->type = PHP_HTTP_REQUEST;
 127                 if (url && http > url) {
 128                         size_t url_len = url - pre_header;
 129
 130                         PHP_HTTP_INFO(info).request.method = estrndup(pre_header, url_len);
 131
 132                         while (' ' == *url) ++url;
 133                         while (' ' == *(http-1)) --http;
 134
 135                         if (http > url) {
 136                                 /* CONNECT presents an authority only */
 137                                 if (strcasecmp(PHP_HTTP_INFO(info).request.method, "CONNECT")) {
 138                                         PHP_HTTP_INFO(info).request.url = php_http_url_parse(url, http - url, ~0 TSRMLS_CC);
 139                                 } else {
 140                                         PHP_HTTP_INFO(info).request.url = php_http_url_parse_authority(url, http - url, ~0 TSRMLS_CC);
 141                                 }
 142                                 if (!PHP_HTTP_INFO(info).request.url) {
 143                                         PTR_SET(PHP_HTTP_INFO(info).request.method, NULL);
 144                                         return NULL;
 145                                 }
 146                         } else {
 147                                 PTR_SET(PHP_HTTP_INFO(info).request.method, NULL);
 148                                 return NULL;
 149                         }
 150                 } else {
 151                         PHP_HTTP_INFO(info).request.method = NULL;
 152                         PHP_HTTP_INFO(info).request.url = NULL;
 153                 }
 154
 155                 return info;
 156         }
 157
 158         /* some darn header containing HTTP/X.x */
 159         else {
 160                 if (free_info) {
 161                         php_http_info_free(&info);
 162                 }
 163                 return NULL;
 164         }
 165 }
 166
 167 /*
 168  * Local variables:
 169  * tab-width: 4
 170  * c-basic-offset: 4
 171  * End:
 172  * vim600: noet sw=4 ts=4 fdm=marker
 173  * vim<600: noet sw=4 ts=4
 174  */
 175