git.m6w6.name Git - m6w6/ext-http/blob - http_url_api.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) 2004-2006, Michael Wallner <mike@php.net>            |
  10     +--------------------------------------------------------------------+
  11 */
  12
  13 /* $Id$ */
  14
  15 #define HTTP_WANT_SAPI
  16 #define HTTP_WANT_NETDB
  17 #include "php_http.h"
  18
  19 #include "zend_ini.h"
  20 #include "php_output.h"
  21 #include "ext/standard/php_string.h"
  22
  23 #include "php_http_api.h"
  24 #include "php_http_url_api.h"
  25
  26 static inline char *localhostname(void)
  27 {
  28         char hostname[1024] = {0};
  29
  30 #ifdef PHP_WIN32
  31         if (SUCCESS == gethostname(hostname, lenof(hostname))) {
  32                 return estrdup(hostname);
  33         }
  34 #elif defined(HAVE_UNISTD_H)
  35         if (SUCCESS == gethostname(hostname, lenof(hostname))) {
  36                 size_t hlen = strlen(hostname);
  37
  38                 if (hlen <= lenof(hostname) - lenof("(none)")) {
  39                         hostname[hlen++] = '.';
  40                         if (SUCCESS == getdomainname(&hostname[hlen], lenof(hostname) - hlen)) {
  41                                 if (!strcmp(&hostname[hlen], "(none)")) {
  42                                         hostname[hlen - 1] = '\0';
  43                                 }
  44                                 return estrdup(hostname);
  45                         }
  46                 }
  47         }
  48 #endif
  49         return estrdup("localhost");
  50 }
  51
  52 PHP_MINIT_FUNCTION(http_url)
  53 {
  54         HTTP_LONG_CONSTANT("HTTP_URL_REPLACE", HTTP_URL_REPLACE);
  55         HTTP_LONG_CONSTANT("HTTP_URL_JOIN_PATH", HTTP_URL_JOIN_PATH);
  56         HTTP_LONG_CONSTANT("HTTP_URL_JOIN_QUERY", HTTP_URL_JOIN_QUERY);
  57         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_USER", HTTP_URL_STRIP_USER);
  58         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_PASS", HTTP_URL_STRIP_PASS);
  59         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_AUTH", HTTP_URL_STRIP_AUTH);
  60         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_PORT", HTTP_URL_STRIP_PORT);
  61         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_PATH", HTTP_URL_STRIP_PATH);
  62         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_QUERY", HTTP_URL_STRIP_QUERY);
  63         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_FRAGMENT", HTTP_URL_STRIP_FRAGMENT);
  64         return SUCCESS;
  65 }
  66
  67 PHP_HTTP_API char *_http_absolute_url(const char *url TSRMLS_DC)
  68 {
  69         char *abs = NULL;
  70         php_url *purl = NULL;
  71
  72         if (url) {
  73                 purl = php_url_parse(abs = estrdup(url));
  74                 STR_SET(abs, NULL);
  75                 if (!purl) {
  76                         http_error_ex(HE_WARNING, HTTP_E_URL, "Could not parse URL (%s)", url);
  77                         return NULL;
  78                 }
  79         }
  80
  81         http_build_url(0, purl, NULL, NULL, &abs, NULL);
  82
  83         if (purl) {
  84                 php_url_free(purl);
  85         }
  86
  87         return abs;
  88 }
  89
  90 /* {{{ void http_build_url(int flags, const php_url *, const php_url *, php_url **, char **, size_t *) */
  91 PHP_HTTP_API void _http_build_url(int flags, const php_url *old_url, const php_url *new_url, php_url **url_ptr, char **url_str, size_t *url_len TSRMLS_DC)
  92 {
  93 #ifdef HTTP_HAVE_NETDB
  94         struct servent *se;
  95 #endif
  96         php_url *url = ecalloc(1, sizeof(php_url));
  97
  98 #define __URLSET(u,n) \
  99         ((u)&&(u)->n)
 100 #define __URLCPY(n) \
 101         url->n = __URLSET(new_url,n) ? estrdup(new_url->n) : (__URLSET(old_url,n) ? estrdup(old_url->n) : NULL)
 102
 103         if (!(flags & HTTP_URL_STRIP_PORT)) {
 104                 url->port = (new_url&&new_url->port) ? new_url->port : ((old_url) ? old_url->port : 0);
 105         }
 106         if ((!(flags & HTTP_URL_STRIP_AUTH)) && (!(flags & HTTP_URL_STRIP_USER))) {
 107                 __URLCPY(user);
 108         }
 109         if ((!(flags & HTTP_URL_STRIP_AUTH)) && (!(flags & HTTP_URL_STRIP_PASS))) {
 110                 __URLCPY(pass);
 111         }
 112
 113         __URLCPY(scheme);
 114         __URLCPY(host);
 115
 116         if (!(flags & HTTP_URL_STRIP_PATH)) {
 117                 if ((flags & HTTP_URL_JOIN_PATH) && __URLSET(old_url, path) && __URLSET(new_url, path) && *new_url->path != '/') {
 118                         size_t old_path_len = strlen(old_url->path), new_path_len = strlen(new_url->path);
 119
 120                         url->path = ecalloc(1, old_path_len + new_path_len + 1 + 1);
 121
 122                         strcat(url->path, old_url->path);
 123                         if (url->path[old_path_len - 1] != '/') {
 124                                 php_dirname(url->path, old_path_len);
 125                                 strcat(url->path, "/");
 126                         }
 127                         strcat(url->path, new_url->path);
 128                 } else {
 129                         __URLCPY(path);
 130                 }
 131         }
 132         if (!(flags & HTTP_URL_STRIP_QUERY)) {
 133                 if ((flags & HTTP_URL_JOIN_QUERY) && __URLSET(new_url, query) && __URLSET(old_url, query)) {
 134                         url->query = ecalloc(1, strlen(new_url->query) + strlen(old_url->query) + 1 + 1);
 135                         strcat(url->query, old_url->query);
 136                         strcat(url->query, "&");
 137                         strcat(url->query, new_url->query);
 138                 } else {
 139                         __URLCPY(query);
 140                 }
 141         }
 142         if (!(flags & HTTP_URL_STRIP_FRAGMENT)) {
 143                 __URLCPY(fragment);
 144         }
 145
 146         if (!url->scheme) {
 147                 switch (url->port)
 148                 {
 149                         case 443:
 150                                 url->scheme = estrndup("https", lenof("https"));
 151                         break;
 152
 153 #ifndef HTTP_HAVE_NETDB
 154                         default:
 155 #endif
 156                         case 80:
 157                                 url->scheme = estrndup("http", lenof("http"));
 158                         break;
 159
 160 #ifdef HTTP_HAVE_NETDB
 161                         default:
 162                                 if ((se = getservbyport(htons(url->port), "tcp")) && se->s_name) {
 163                                         url->scheme = estrdup(se->s_name);
 164                                 } else {
 165                                         url->scheme = estrndup("http", lenof("http"));
 166                                 }
 167                         break;
 168 #endif
 169                 }
 170         }
 171
 172         if (!url->host) {
 173                 zval *zhost;
 174
 175                 if ((((zhost = http_get_server_var("HTTP_HOST")) ||
 176                                 (zhost = http_get_server_var("SERVER_NAME")))) && Z_STRLEN_P(zhost)) {
 177                         url->host = estrndup(Z_STRVAL_P(zhost), Z_STRLEN_P(zhost));
 178                 } else {
 179                         url->host = localhostname();
 180                 }
 181         }
 182
 183         if (!url->path) {
 184                 if (SG(request_info).request_uri && *SG(request_info).request_uri) {
 185                         const char *q = strchr(SG(request_info).request_uri, '?');
 186
 187                         if (q) {
 188                                 url->path = estrndup(SG(request_info).request_uri, q - SG(request_info).request_uri);
 189                         } else {
 190                                 url->path = estrdup(SG(request_info).request_uri);
 191                         }
 192                 } else {
 193                         url->path = estrndup("/", 1);
 194                 }
 195         } else if (*url->path != '/') {
 196                 if (SG(request_info).request_uri && *SG(request_info).request_uri) {
 197                         const char *q = strchr(SG(request_info).request_uri, '?');
 198                         char *uri, *path;
 199                         size_t len;
 200
 201                         if (q) {
 202                                 uri = estrndup(SG(request_info).request_uri, len = q - SG(request_info).request_uri);
 203                         } else {
 204                                 uri = estrndup(SG(request_info).request_uri, len = strlen(SG(request_info).request_uri));
 205                         }
 206
 207                         php_dirname(uri, len);
 208                         spprintf(&path, 0, "%s/%s", uri, url->path);
 209                         efree(uri);
 210                         STR_SET(url->path, path);
 211                 } else {
 212                         char *uri;
 213
 214                         spprintf(&uri, 0, "/%s", url->path);
 215                         STR_SET(url->path, uri);
 216                 }
 217         }
 218         if (url->path) {
 219                 char *ptr, *end = url->path + strlen(url->path) + 1;
 220
 221                 for (ptr = strstr(url->path, "/."); ptr; ptr = strstr(ptr, "/.")) {
 222                         switch (ptr[2])
 223                         {
 224                                 case '\0':
 225                                         ptr[1] = '\0';
 226                                 break;
 227
 228                                 case '/':
 229                                         memmove(&ptr[1], &ptr[3], end - &ptr[3]);
 230                                 break;
 231
 232                                 case '.':
 233                                         if (ptr[3] == '/') {
 234                                                 char *pos = &ptr[4];
 235                                                 while (ptr != url->path) {
 236                                                         if (*--ptr == '/') {
 237                                                                 break;
 238                                                         }
 239                                                 }
 240                                                 memmove(&ptr[1], pos, end - pos);
 241                                         }
 242                                 break;
 243
 244                                 default:
 245                                         /* something else */
 246                                         ++ptr;
 247                                 break;
 248                         }
 249                 }
 250         }
 251
 252         if (url->port) {
 253                 if (    ((url->port == 80) && !strcmp(url->scheme, "http"))
 254                         ||      ((url->port ==443) && !strcmp(url->scheme, "https"))
 255 #ifdef HTTP_HAVE_NETDB
 256                         ||      ((se = getservbyname(url->scheme, "tcp")) && se->s_port &&
 257                                         (url->port == ntohs(se->s_port)))
 258 #endif
 259                 ) {
 260                         url->port = 0;
 261                 }
 262         }
 263
 264         if (url_str) {
 265                 size_t len;
 266
 267                 *url_str = emalloc(HTTP_URL_MAXLEN + 1);
 268
 269                 **url_str = '\0';
 270                 strlcat(*url_str, url->scheme, HTTP_URL_MAXLEN);
 271                 strlcat(*url_str, "://", HTTP_URL_MAXLEN);
 272
 273                 if (url->user && *url->user) {
 274                         strlcat(*url_str, url->user, HTTP_URL_MAXLEN);
 275                         if (url->pass && *url->pass) {
 276                                 strlcat(*url_str, ":", HTTP_URL_MAXLEN);
 277                                 strlcat(*url_str, url->pass, HTTP_URL_MAXLEN);
 278                         }
 279                         strlcat(*url_str, "@", HTTP_URL_MAXLEN);
 280                 }
 281
 282                 strlcat(*url_str, url->host, HTTP_URL_MAXLEN);
 283
 284                 if (url->port) {
 285                         char port_str[8] = {0};
 286
 287                         snprintf(port_str, lenof(port_str), "%d", (int) url->port);
 288                         strlcat(*url_str, ":", HTTP_URL_MAXLEN);
 289                         strlcat(*url_str, port_str, HTTP_URL_MAXLEN);
 290                 }
 291
 292                 if (*url->path != '/') {
 293                         strlcat(*url_str, "/", HTTP_URL_MAXLEN);
 294                 }
 295                 strlcat(*url_str, url->path, HTTP_URL_MAXLEN);
 296
 297                 if (url->query && *url->query) {
 298                         strlcat(*url_str, "?", HTTP_URL_MAXLEN);
 299                         strlcat(*url_str, url->query, HTTP_URL_MAXLEN);
 300                 }
 301
 302                 if (url->fragment && *url->fragment) {
 303                         strlcat(*url_str, "#", HTTP_URL_MAXLEN);
 304                         strlcat(*url_str, url->fragment, HTTP_URL_MAXLEN);
 305                 }
 306
 307                 if (HTTP_URL_MAXLEN == (len = strlen(*url_str))) {
 308                         http_error(HE_NOTICE, HTTP_E_URL, "Length of URL exceeds HTTP_URL_MAXLEN");
 309                 }
 310                 if (url_len) {
 311                         *url_len = len;
 312                 }
 313         }
 314
 315         if (url_ptr) {
 316                 *url_ptr = url;
 317         } else {
 318                 php_url_free(url);
 319         }
 320 }
 321 /* }}} */
 322
 323 /* {{{ STATUS http_urlencode_hash_ex(HashTable *, zend_bool, char *, size_t, char **, size_t *) */
 324 PHP_HTTP_API STATUS _http_urlencode_hash_ex(HashTable *hash, zend_bool override_argsep,
 325         char *pre_encoded_data, size_t pre_encoded_len,
 326         char **encoded_data, size_t *encoded_len TSRMLS_DC)
 327 {
 328         char *arg_sep;
 329         size_t arg_sep_len;
 330         phpstr *qstr = phpstr_new();
 331
 332         if (override_argsep || !(arg_sep_len = strlen(arg_sep = INI_STR("arg_separator.output")))) {
 333                 arg_sep = HTTP_URL_ARGSEP;
 334                 arg_sep_len = lenof(HTTP_URL_ARGSEP);
 335         }
 336
 337         if (pre_encoded_len && pre_encoded_data) {
 338                 phpstr_append(qstr, pre_encoded_data, pre_encoded_len);
 339         }
 340
 341         if (SUCCESS != http_urlencode_hash_recursive(hash, qstr, arg_sep, arg_sep_len, NULL, 0)) {
 342                 phpstr_free(&qstr);
 343                 return FAILURE;
 344         }
 345
 346         phpstr_data(qstr, encoded_data, encoded_len);
 347         phpstr_free(&qstr);
 348
 349         return SUCCESS;
 350 }
 351 /* }}} */
 352
 353 /* {{{ http_urlencode_hash_recursive */
 354 PHP_HTTP_API STATUS _http_urlencode_hash_recursive(HashTable *ht, phpstr *str, const char *arg_sep, size_t arg_sep_len, const char *prefix, size_t prefix_len TSRMLS_DC)
 355 {
 356         char *key = NULL;
 357         uint len = 0;
 358         ulong idx = 0;
 359         zval **data = NULL;
 360         HashPosition pos;
 361
 362         if (!ht || !str) {
 363                 http_error(HE_WARNING, HTTP_E_INVALID_PARAM, "Invalid parameters");
 364                 return FAILURE;
 365         }
 366         if (ht->nApplyCount > 0) {
 367                 return SUCCESS;
 368         }
 369
 370         FOREACH_HASH_KEYLENVAL(pos, ht, key, len, idx, data) {
 371                 char *encoded_key;
 372                 int encoded_len;
 373                 phpstr new_prefix;
 374
 375                 if (!data || !*data) {
 376                         phpstr_dtor(str);
 377                         return FAILURE;
 378                 }
 379
 380                 if (key) {
 381                         if (len && key[len - 1] == '\0') {
 382                                 --len;
 383                         }
 384                         encoded_key = php_url_encode(key, len, &encoded_len);
 385                         key = NULL;
 386                 } else {
 387                         encoded_len = spprintf(&encoded_key, 0, "%ld", idx);
 388                 }
 389
 390                 {
 391                         phpstr_init(&new_prefix);
 392                         if (prefix && prefix_len) {
 393                                 phpstr_append(&new_prefix, prefix, prefix_len);
 394                                 phpstr_appends(&new_prefix, "%5B");
 395                         }
 396
 397                         phpstr_append(&new_prefix, encoded_key, encoded_len);
 398                         efree(encoded_key);
 399
 400                         if (prefix && prefix_len) {
 401                                 phpstr_appends(&new_prefix, "%5D");
 402                         }
 403                         phpstr_fix(&new_prefix);
 404                 }
 405
 406                 if (Z_TYPE_PP(data) == IS_ARRAY) {
 407                         STATUS status;
 408                         ++ht->nApplyCount;
 409                         status = http_urlencode_hash_recursive(Z_ARRVAL_PP(data), str, arg_sep, arg_sep_len, PHPSTR_VAL(&new_prefix), PHPSTR_LEN(&new_prefix));
 410                         --ht->nApplyCount;
 411                         if (SUCCESS != status) {
 412                                 phpstr_dtor(&new_prefix);
 413                                 phpstr_dtor(str);
 414                                 return FAILURE;
 415                         }
 416                 } else {
 417                         zval *val = zval_copy(IS_STRING, *data);
 418
 419                         if (PHPSTR_LEN(str)) {
 420                                 phpstr_append(str, arg_sep, arg_sep_len);
 421                         }
 422                         phpstr_append(str, PHPSTR_VAL(&new_prefix), PHPSTR_LEN(&new_prefix));
 423                         phpstr_appends(str, "=");
 424
 425                         if (Z_STRLEN_P(val) && Z_STRVAL_P(val)) {
 426                                 char *encoded_val;
 427                                 int encoded_len;
 428
 429                                 encoded_val = php_url_encode(Z_STRVAL_P(val), Z_STRLEN_P(val), &encoded_len);
 430                                 phpstr_append(str, encoded_val, encoded_len);
 431                                 efree(encoded_val);
 432                         }
 433
 434                         zval_free(&val);
 435                 }
 436                 phpstr_dtor(&new_prefix);
 437         }
 438         return SUCCESS;
 439 }
 440 /* }}} */
 441
 442 /*
 443  * Local variables:
 444  * tab-width: 4
 445  * c-basic-offset: 4
 446  * End:
 447  * vim600: noet sw=4 ts=4 fdm=marker
 448  * vim<600: noet sw=4 ts=4
 449  */
 450