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 void php_http_info_to_string(php_http_info_t *info, char **str, size_t *len, const char *eol TSRMLS_DC)
  53 {
  54         char *tmp = NULL;
  55
  56         if (info->http.version.major == 2) {
  57                 if (info->type == PHP_HTTP_REQUEST) {
  58                         *len = spprintf(str, 0, "%s %s HTTP/2%s",
  59                                         info->http.info.request.method?info->http.info.request.method:"UNKNOWN",
  60                                         info->http.info.request.method&&!strcasecmp(info->http.info.request.method,"CONNECT")?(
  61                                         info->http.info.request.url?php_http_url_authority_to_string(info->http.info.request.url, &(tmp), NULL):"0"):(
  62                                         info->http.info.request.url?php_http_url_to_string(info->http.info.request.url, &(tmp), NULL, 0):"/"),
  63                                         eol);
  64                 } else if (info->type == PHP_HTTP_RESPONSE) {
  65                         *len = spprintf(str, 0, "HTTP/2 %d%s%s%s",
  66                                         info->http.info.response.code?info->http.info.response.code:200,
  67                                         info->http.info.response.status&&*info->http.info.response.status ? " ":"",
  68                                         STR_PTR(info->http.info.response.status),
  69                                         eol);
  70                 }
  71         } else if (info->type == PHP_HTTP_REQUEST) {
  72                 *len = spprintf(str, 0, "%s %s HTTP/%u.%u%s",
  73                                 info->http.info.request.method?info->http.info.request.method:"UNKNOWN",
  74                                 info->http.info.request.method&&!strcasecmp(info->http.info.request.method,"CONNECT")?(
  75                                 info->http.info.request.url?php_http_url_authority_to_string(info->http.info.request.url, &(tmp), NULL):"0"):(
  76                                 info->http.info.request.url?php_http_url_to_string(info->http.info.request.url, &(tmp), NULL, 0):"/"),
  77                                 info->http.version.major||info->http.version.major?info->http.version.major:1,
  78                                 info->http.version.major||info->http.version.minor?info->http.version.minor:1,
  79                                 eol);
  80         } else if (info->type == PHP_HTTP_RESPONSE){
  81                 *len = spprintf(str, 0, "HTTP/%u.%u %d%s%s%s", info->http.version.major||info->http.version.major?info->http.version.major:1,
  82                                 info->http.version.major||info->http.version.minor?info->http.version.minor:1,
  83                                 info->http.info.response.code?info->http.info.response.code:200,
  84                                 info->http.info.response.status&&*info->http.info.response.status ? " ":"",
  85                                 STR_PTR(info->http.info.response.status),
  86                                 eol);
  87         }
  88
  89         STR_FREE(tmp);
  90 }
  91
  92 php_http_info_t *php_http_info_parse(php_http_info_t *info, const char *pre_header TSRMLS_DC)
  93 {
  94         const char *end, *http, *off;
  95         zend_bool free_info = !info;
  96
  97         /* sane parameter */
  98         if ((!pre_header) || (!*pre_header)) {
  99                 return NULL;
 100         }
 101
 102         /* where's the end of the line */
 103         if (!(end = php_http_locate_eol(pre_header, NULL))) {
 104                 end = pre_header + strlen(pre_header);
 105         }
 106
 107         /* there must be HTTP/1.x in the line */
 108         if (!(http = php_http_locate_str(pre_header, end - pre_header, "HTTP/", lenof("HTTP/")))) {
 109                 return NULL;
 110         }
 111
 112         info = php_http_info_init(info TSRMLS_CC);
 113
 114         if (!php_http_version_parse(&info->http.version, http TSRMLS_CC)) {
 115                 if (free_info) {
 116                         php_http_info_free(&info);
 117                 }
 118                 return NULL;
 119         }
 120
 121         /* clumsy fix for changed libcurl behaviour in 7.49.1, see https://github.com/curl/curl/issues/888 */
 122         off = &http[lenof("HTTP/X")];
 123         if (info->http.version.major < 2 || (info->http.version.major == 2 && *off == '.')) {
 124                 off += 2;
 125         }
 126
 127         /* and nothing than SPACE or NUL after HTTP/X(.x) */
 128         if (*off && (!PHP_HTTP_IS_CTYPE(space, *off))) {
 129                 if (free_info) {
 130                         php_http_info_free(&info);
 131                 }
 132                 return NULL;
 133         }
 134
 135 #if 0
 136         {
 137                 char *line = estrndup(pre_header, end - pre_header);
 138                 fprintf(stderr, "http_parse_info('%s')\n", line);
 139                 efree(line);
 140         }
 141 #endif
 142
 143         /* is response */
 144         if (pre_header == http) {
 145                 const char *status = NULL, *code = off;
 146
 147                 info->type = PHP_HTTP_RESPONSE;
 148                 while (' ' == *code) ++code;
 149                 if (end > code) {
 150                         /* rfc7230#3.1.2 The status-code element is a 3-digit integer code */
 151                         PHP_HTTP_INFO(info).response.code = 100*(*code++ - '0');
 152                         PHP_HTTP_INFO(info).response.code += 10*(*code++ - '0');
 153                         PHP_HTTP_INFO(info).response.code +=     *code++ - '0';
 154                         if (PHP_HTTP_INFO(info).response.code < 100 || PHP_HTTP_INFO(info).response.code > 599) {
 155                                 if (free_info) {
 156                                         php_http_info_free(&info);
 157                                 }
 158                                 return NULL;
 159                         }
 160                         status = code;
 161                 } else {
 162                         PHP_HTTP_INFO(info).response.code = 0;
 163                 }
 164                 if (status && end > status) {
 165                         while (' ' == *status) ++status;
 166                         PHP_HTTP_INFO(info).response.status = estrndup(status, end - status);
 167                 } else {
 168                         PHP_HTTP_INFO(info).response.status = NULL;
 169                 }
 170
 171                 return info;
 172         }
 173
 174         /* is request */
 175         else if (*(http - 1) == ' ' && (!*off || *off == '\r' || *off == '\n')) {
 176                 const char *url = strchr(pre_header, ' ');
 177
 178                 info->type = PHP_HTTP_REQUEST;
 179                 if (url && http > url) {
 180                         size_t url_len = url - pre_header;
 181
 182                         PHP_HTTP_INFO(info).request.method = estrndup(pre_header, url_len);
 183
 184                         while (' ' == *url) ++url;
 185                         while (' ' == *(http-1)) --http;
 186
 187                         if (http > url) {
 188                                 /* CONNECT presents an authority only */
 189                                 if (strcasecmp(PHP_HTTP_INFO(info).request.method, "CONNECT")) {
 190                                         PHP_HTTP_INFO(info).request.url = php_http_url_parse(url, http - url, PHP_HTTP_URL_STDFLAGS TSRMLS_CC);
 191                                 } else {
 192                                         PHP_HTTP_INFO(info).request.url = php_http_url_parse_authority(url, http - url, PHP_HTTP_URL_STDFLAGS TSRMLS_CC);
 193                                 }
 194                                 if (!PHP_HTTP_INFO(info).request.url) {
 195                                         PTR_SET(PHP_HTTP_INFO(info).request.method, NULL);
 196                                         return NULL;
 197                                 }
 198                         } else {
 199                                 PTR_SET(PHP_HTTP_INFO(info).request.method, NULL);
 200                                 return NULL;
 201                         }
 202                 } else {
 203                         PHP_HTTP_INFO(info).request.method = NULL;
 204                         PHP_HTTP_INFO(info).request.url = NULL;
 205                 }
 206
 207                 return info;
 208         }
 209
 210         /* some darn header containing HTTP/X(.x) */
 211         else {
 212                 if (free_info) {
 213                         php_http_info_free(&info);
 214                 }
 215                 return NULL;
 216         }
 217 }
 218
 219 /*
 220  * Local variables:
 221  * tab-width: 4
 222  * c-basic-offset: 4
 223  * End:
 224  * vim600: noet sw=4 ts=4 fdm=marker
 225  * vim<600: noet sw=4 ts=4
 226  */
 227