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, *off;
  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         if (!php_http_version_parse(&info->http.version, http TSRMLS_CC)) {
  75                 if (free_info) {
  76                         php_http_info_free(&info);
  77                 }
  78                 return NULL;
  79         }
  80
  81         /* clumsy fix for changed libcurl behaviour in 7.49.1, see https://github.com/curl/curl/issues/888 */
  82         off = &http[lenof("HTTP/X")];
  83         if (info->http.version.major < 2) {
  84                 off += 2;
  85         }
  86
  87         /* and nothing than SPACE or NUL after HTTP/X(.x) */
  88         if (*off && (!PHP_HTTP_IS_CTYPE(space, *off))) {
  89                 if (free_info) {
  90                         php_http_info_free(&info);
  91                 }
  92                 return NULL;
  93         }
  94
  95 #if 0
  96         {
  97                 char *line = estrndup(pre_header, end - pre_header);
  98                 fprintf(stderr, "http_parse_info('%s')\n", line);
  99                 efree(line);
 100         }
 101 #endif
 102
 103         /* is response */
 104         if (pre_header == http) {
 105                 const char *status = NULL, *code = off;
 106
 107                 info->type = PHP_HTTP_RESPONSE;
 108                 while (' ' == *code) ++code;
 109                 if (end > code) {
 110                         /* rfc7230#3.1.2 The status-code element is a 3-digit integer code */
 111                         PHP_HTTP_INFO(info).response.code = 100*(*code++ - '0');
 112                         PHP_HTTP_INFO(info).response.code += 10*(*code++ - '0');
 113                         PHP_HTTP_INFO(info).response.code +=     *code++ - '0';
 114                         if (PHP_HTTP_INFO(info).response.code < 100 || PHP_HTTP_INFO(info).response.code > 599) {
 115                                 if (free_info) {
 116                                         php_http_info_free(&info);
 117                                 }
 118                                 return NULL;
 119                         }
 120                         status = code;
 121                 } else {
 122                         PHP_HTTP_INFO(info).response.code = 0;
 123                 }
 124                 if (status && end > status) {
 125                         while (' ' == *status) ++status;
 126                         PHP_HTTP_INFO(info).response.status = estrndup(status, end - status);
 127                 } else {
 128                         PHP_HTTP_INFO(info).response.status = NULL;
 129                 }
 130
 131                 return info;
 132         }
 133
 134         /* is request */
 135         else if (*(http - 1) == ' ' && (!*off || *off == '\r' || *off == '\n')) {
 136                 const char *url = strchr(pre_header, ' ');
 137
 138                 info->type = PHP_HTTP_REQUEST;
 139                 if (url && http > url) {
 140                         size_t url_len = url - pre_header;
 141
 142                         PHP_HTTP_INFO(info).request.method = estrndup(pre_header, url_len);
 143
 144                         while (' ' == *url) ++url;
 145                         while (' ' == *(http-1)) --http;
 146
 147                         if (http > url) {
 148                                 /* CONNECT presents an authority only */
 149                                 if (strcasecmp(PHP_HTTP_INFO(info).request.method, "CONNECT")) {
 150                                         PHP_HTTP_INFO(info).request.url = php_http_url_parse(url, http - url, PHP_HTTP_URL_STDFLAGS TSRMLS_CC);
 151                                 } else {
 152                                         PHP_HTTP_INFO(info).request.url = php_http_url_parse_authority(url, http - url, PHP_HTTP_URL_STDFLAGS TSRMLS_CC);
 153                                 }
 154                                 if (!PHP_HTTP_INFO(info).request.url) {
 155                                         PTR_SET(PHP_HTTP_INFO(info).request.method, NULL);
 156                                         return NULL;
 157                                 }
 158                         } else {
 159                                 PTR_SET(PHP_HTTP_INFO(info).request.method, NULL);
 160                                 return NULL;
 161                         }
 162                 } else {
 163                         PHP_HTTP_INFO(info).request.method = NULL;
 164                         PHP_HTTP_INFO(info).request.url = NULL;
 165                 }
 166
 167                 return info;
 168         }
 169
 170         /* some darn header containing HTTP/X(.x) */
 171         else {
 172                 if (free_info) {
 173                         php_http_info_free(&info);
 174                 }
 175                 return NULL;
 176         }
 177 }
 178
 179 /*
 180  * Local variables:
 181  * tab-width: 4
 182  * c-basic-offset: 4
 183  * End:
 184  * vim600: noet sw=4 ts=4 fdm=marker
 185  * vim<600: noet sw=4 ts=4
 186  */
 187