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)
  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)
  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.minor?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",
  82                                 info->http.version.major||info->http.version.minor?info->http.version.major:1,
  83                                 info->http.version.major||info->http.version.minor?info->http.version.minor:1,
  84                                 info->http.info.response.code?info->http.info.response.code:200,
  85                                 info->http.info.response.status&&*info->http.info.response.status ? " ":"",
  86                                 STR_PTR(info->http.info.response.status),
  87                                 eol);
  88         }
  89
  90         PTR_FREE(tmp);
  91 }
  92
  93 php_http_info_t *php_http_info_parse(php_http_info_t *info, const char *pre_header)
  94 {
  95         const char *end, *http, *off;
  96         zend_bool free_info = !info;
  97
  98         /* sane parameter */
  99         if (UNEXPECTED((!pre_header) || (!*pre_header))) {
 100                 return NULL;
 101         }
 102
 103         /* where's the end of the line */
 104         if (UNEXPECTED(!(end = php_http_locate_eol(pre_header, NULL)))) {
 105                 end = pre_header + strlen(pre_header);
 106         }
 107
 108         /* there must be HTTP/1.x in the line */
 109         if (!(http = php_http_locate_str(pre_header, end - pre_header, "HTTP/", lenof("HTTP/")))) {
 110                 return NULL;
 111         }
 112
 113         info = php_http_info_init(info);
 114
 115         if (UNEXPECTED(!php_http_version_parse(&info->http.version, http))) {
 116                 if (free_info) {
 117                         php_http_info_free(&info);
 118                 }
 119                 return NULL;
 120         }
 121
 122         /* clumsy fix for changed libcurl behaviour in 7.49.1, see https://github.com/curl/curl/issues/888 */
 123         off = &http[lenof("HTTP/X")];
 124         if (info->http.version.major < 2 || (info->http.version.major == 2 && *off == '.')) {
 125                 off += 2;
 126         }
 127
 128         /* and nothing than SPACE or NUL after HTTP/X(.x) */
 129         if (UNEXPECTED(*off && (!PHP_HTTP_IS_CTYPE(space, *off)))) {
 130                 if (free_info) {
 131                         php_http_info_free(&info);
 132                 }
 133                 return NULL;
 134         }
 135
 136 #if 0
 137         {
 138                 char *line = estrndup(pre_header, end - pre_header);
 139                 fprintf(stderr, "http_parse_info('%s')\n", line);
 140                 efree(line);
 141         }
 142 #endif
 143
 144         /* is response */
 145         if (pre_header == http) {
 146                 const char *status = NULL, *code = off;
 147
 148                 info->type = PHP_HTTP_RESPONSE;
 149                 while (code < end && ' ' == *code) ++code;
 150                 if (EXPECTED(end > code)) {
 151                         /* rfc7230#3.1.2 The status-code element is a 3-digit integer code */
 152                         PHP_HTTP_INFO(info).response.code = 100*(*code++ - '0');
 153                         PHP_HTTP_INFO(info).response.code += 10*(*code++ - '0');
 154                         PHP_HTTP_INFO(info).response.code +=     *code++ - '0';
 155                         if (PHP_HTTP_INFO(info).response.code < 100 || PHP_HTTP_INFO(info).response.code > 599) {
 156                                 if (free_info) {
 157                                         php_http_info_free(&info);
 158                                 }
 159                                 return NULL;
 160                         }
 161                         status = code;
 162                 } else {
 163                         PHP_HTTP_INFO(info).response.code = 0;
 164                 }
 165                 if (EXPECTED(status && end > status)) {
 166                         while (' ' == *status) ++status;
 167                         PHP_HTTP_INFO(info).response.status = estrndup(status, end - status);
 168                 } else {
 169                         PHP_HTTP_INFO(info).response.status = NULL;
 170                 }
 171
 172                 return info;
 173         }
 174
 175         /* is request */
 176         else if (*(http - 1) == ' ' && (!*off || *off == '\r' || *off == '\n')) {
 177                 const char *url = strchr(pre_header, ' ');
 178
 179                 info->type = PHP_HTTP_REQUEST;
 180                 if (EXPECTED(url && http > url)) {
 181                         size_t url_len = url - pre_header;
 182
 183                         PHP_HTTP_INFO(info).request.method = estrndup(pre_header, url_len);
 184
 185                         while (' ' == *url) ++url;
 186                         while (' ' == *(http-1)) --http;
 187
 188                         if (EXPECTED(http > url)) {
 189                                 /* CONNECT presents an authority only */
 190                                 if (UNEXPECTED(strcasecmp(PHP_HTTP_INFO(info).request.method, "CONNECT"))) {
 191                                         PHP_HTTP_INFO(info).request.url = php_http_url_parse(url, http - url, PHP_HTTP_URL_STDFLAGS);
 192                                 } else {
 193                                         PHP_HTTP_INFO(info).request.url = php_http_url_parse_authority(url, http - url, PHP_HTTP_URL_STDFLAGS);
 194                                 }
 195                                 if (!PHP_HTTP_INFO(info).request.url) {
 196                                         PTR_SET(PHP_HTTP_INFO(info).request.method, NULL);
 197                                         return NULL;
 198                                 }
 199                         } else {
 200                                 PTR_SET(PHP_HTTP_INFO(info).request.method, NULL);
 201                                 return NULL;
 202                         }
 203                 } else {
 204                         PHP_HTTP_INFO(info).request.method = NULL;
 205                         PHP_HTTP_INFO(info).request.url = NULL;
 206                 }
 207
 208                 return info;
 209         }
 210
 211         /* some darn header containing HTTP/X(.x) */
 212         else {
 213                 if (free_info) {
 214                         php_http_info_free(&info);
 215                 }
 216                 return NULL;
 217         }
 218 }
 219
 220 /*
 221  * Local variables:
 222  * tab-width: 4
 223  * c-basic-offset: 4
 224  * End:
 225  * vim600: noet sw=4 ts=4 fdm=marker
 226  * vim<600: noet sw=4 ts=4
 227  */
 228