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_querystring_api.h"
  25 #include "php_http_url_api.h"
  26
  27 static inline char *localhostname(void)
  28 {
  29         char hostname[1024] = {0};
  30
  31 #ifdef PHP_WIN32
  32         if (SUCCESS == gethostname(hostname, lenof(hostname))) {
  33                 return estrdup(hostname);
  34         }
  35 #elif defined(HAVE_UNISTD_H)
  36         if (SUCCESS == gethostname(hostname, lenof(hostname))) {
  37                 size_t hlen = strlen(hostname);
  38
  39                 if (hlen <= lenof(hostname) - lenof("(none)")) {
  40                         hostname[hlen++] = '.';
  41                         if (SUCCESS == getdomainname(&hostname[hlen], lenof(hostname) - hlen)) {
  42                                 if (!strcmp(&hostname[hlen], "(none)")) {
  43                                         hostname[hlen - 1] = '\0';
  44                                 }
  45                                 return estrdup(hostname);
  46                         }
  47                 }
  48         }
  49 #endif
  50         return estrdup("localhost");
  51 }
  52
  53 PHP_MINIT_FUNCTION(http_url)
  54 {
  55         HTTP_LONG_CONSTANT("HTTP_URL_REPLACE", HTTP_URL_REPLACE);
  56         HTTP_LONG_CONSTANT("HTTP_URL_JOIN_PATH", HTTP_URL_JOIN_PATH);
  57         HTTP_LONG_CONSTANT("HTTP_URL_JOIN_QUERY", HTTP_URL_JOIN_QUERY);
  58         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_USER", HTTP_URL_STRIP_USER);
  59         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_PASS", HTTP_URL_STRIP_PASS);
  60         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_AUTH", HTTP_URL_STRIP_AUTH);
  61         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_PORT", HTTP_URL_STRIP_PORT);
  62         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_PATH", HTTP_URL_STRIP_PATH);
  63         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_QUERY", HTTP_URL_STRIP_QUERY);
  64         HTTP_LONG_CONSTANT("HTTP_URL_STRIP_FRAGMENT", HTTP_URL_STRIP_FRAGMENT);
  65         return SUCCESS;
  66 }
  67
  68 PHP_HTTP_API char *_http_absolute_url(const char *url TSRMLS_DC)
  69 {
  70         char *abs = NULL;
  71         php_url *purl = NULL;
  72
  73         if (url) {
  74                 purl = php_url_parse(abs = estrdup(url));
  75                 STR_SET(abs, NULL);
  76                 if (!purl) {
  77                         http_error_ex(HE_WARNING, HTTP_E_URL, "Could not parse URL (%s)", url);
  78                         return NULL;
  79                 }
  80         }
  81
  82         http_build_url(0, purl, NULL, NULL, &abs, NULL);
  83
  84         if (purl) {
  85                 php_url_free(purl);
  86         }
  87
  88         return abs;
  89 }
  90
  91 /* {{{ void http_build_url(int flags, const php_url *, const php_url *, php_url **, char **, size_t *) */
  92 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)
  93 {
  94 #ifdef HTTP_HAVE_NETDB
  95         struct servent *se;
  96 #endif
  97         php_url *url = ecalloc(1, sizeof(php_url));
  98
  99 #define __URLSET(u,n) \
 100         ((u)&&(u)->n)
 101 #define __URLCPY(n) \
 102         url->n = __URLSET(new_url,n) ? estrdup(new_url->n) : (__URLSET(old_url,n) ? estrdup(old_url->n) : NULL)
 103
 104         if (!(flags & HTTP_URL_STRIP_PORT)) {
 105                 url->port = (new_url&&new_url->port) ? new_url->port : ((old_url) ? old_url->port : 0);
 106         }
 107         if ((!(flags & HTTP_URL_STRIP_AUTH)) && (!(flags & HTTP_URL_STRIP_USER))) {
 108                 __URLCPY(user);
 109         }
 110         if ((!(flags & HTTP_URL_STRIP_AUTH)) && (!(flags & HTTP_URL_STRIP_PASS))) {
 111                 __URLCPY(pass);
 112         }
 113
 114         __URLCPY(scheme);
 115         __URLCPY(host);
 116
 117         if (!(flags & HTTP_URL_STRIP_PATH)) {
 118                 if ((flags & HTTP_URL_JOIN_PATH) && __URLSET(old_url, path) && __URLSET(new_url, path) && *new_url->path != '/') {
 119                         size_t old_path_len = strlen(old_url->path), new_path_len = strlen(new_url->path);
 120
 121                         url->path = ecalloc(1, old_path_len + new_path_len + 1 + 1);
 122
 123                         strcat(url->path, old_url->path);
 124                         if (url->path[old_path_len - 1] != '/') {
 125                                 php_dirname(url->path, old_path_len);
 126                                 strcat(url->path, "/");
 127                         }
 128                         strcat(url->path, new_url->path);
 129                 } else {
 130                         __URLCPY(path);
 131                 }
 132         }
 133         if (!(flags & HTTP_URL_STRIP_QUERY)) {
 134                 if ((flags & HTTP_URL_JOIN_QUERY) && __URLSET(new_url, query) && __URLSET(old_url, query)) {
 135                         zval qarr, qstr;
 136
 137                         INIT_PZVAL(&qstr);
 138                         INIT_PZVAL(&qarr);
 139                         array_init(&qarr);
 140
 141                         ZVAL_STRING(&qstr, old_url->query, 0);
 142                         http_querystring_modify(&qarr, &qstr);
 143                         ZVAL_STRING(&qstr, new_url->query, 0);
 144                         http_querystring_modify(&qarr, &qstr);
 145
 146                         ZVAL_NULL(&qstr);
 147                         http_querystring_update(&qarr, &qstr);
 148                         url->query = Z_STRVAL(qstr);
 149                         zval_dtor(&qarr);
 150                 } else {
 151                         __URLCPY(query);
 152                 }
 153         }
 154         if (!(flags & HTTP_URL_STRIP_FRAGMENT)) {
 155                 __URLCPY(fragment);
 156         }
 157
 158         if (!url->scheme) {
 159                 switch (url->port)
 160                 {
 161                         case 443:
 162                                 url->scheme = estrndup("https", lenof("https"));
 163                         break;
 164
 165 #ifndef HTTP_HAVE_NETDB
 166                         default:
 167 #endif
 168                         case 80:
 169                                 url->scheme = estrndup("http", lenof("http"));
 170                         break;
 171
 172 #ifdef HTTP_HAVE_NETDB
 173                         default:
 174                                 if ((se = getservbyport(htons(url->port), "tcp")) && se->s_name) {
 175                                         url->scheme = estrdup(se->s_name);
 176                                 } else {
 177                                         url->scheme = estrndup("http", lenof("http"));
 178                                 }
 179                         break;
 180 #endif
 181                 }
 182         }
 183
 184         if (!url->host) {
 185                 zval *zhost;
 186
 187                 if ((((zhost = http_get_server_var("HTTP_HOST")) ||
 188                                 (zhost = http_get_server_var("SERVER_NAME")))) && Z_STRLEN_P(zhost)) {
 189                         url->host = estrndup(Z_STRVAL_P(zhost), Z_STRLEN_P(zhost));
 190                 } else {
 191                         url->host = localhostname();
 192                 }
 193         }
 194
 195         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
 199                         if (q) {
 200                                 url->path = estrndup(SG(request_info).request_uri, q - SG(request_info).request_uri);
 201                         } else {
 202                                 url->path = estrdup(SG(request_info).request_uri);
 203                         }
 204                 } else {
 205                         url->path = estrndup("/", 1);
 206                 }
 207         } else if (*url->path != '/') {
 208                 if (SG(request_info).request_uri && *SG(request_info).request_uri) {
 209                         const char *q = strchr(SG(request_info).request_uri, '?');
 210                         char *uri, *path;
 211                         size_t len;
 212
 213                         if (q) {
 214                                 uri = estrndup(SG(request_info).request_uri, len = q - SG(request_info).request_uri);
 215                         } else {
 216                                 uri = estrndup(SG(request_info).request_uri, len = strlen(SG(request_info).request_uri));
 217                         }
 218
 219                         php_dirname(uri, len);
 220                         spprintf(&path, 0, "%s/%s", uri, url->path);
 221                         efree(uri);
 222                         STR_SET(url->path, path);
 223                 } else {
 224                         char *uri;
 225
 226                         spprintf(&uri, 0, "/%s", url->path);
 227                         STR_SET(url->path, uri);
 228                 }
 229         }
 230         if (url->path) {
 231                 char *ptr, *end = url->path + strlen(url->path) + 1;
 232
 233                 for (ptr = strstr(url->path, "/."); ptr; ptr = strstr(ptr, "/.")) {
 234                         switch (ptr[2])
 235                         {
 236                                 case '\0':
 237                                         ptr[1] = '\0';
 238                                 break;
 239
 240                                 case '/':
 241                                         memmove(&ptr[1], &ptr[3], end - &ptr[3]);
 242                                 break;
 243
 244                                 case '.':
 245                                         if (ptr[3] == '/') {
 246                                                 char *pos = &ptr[4];
 247                                                 while (ptr != url->path) {
 248                                                         if (*--ptr == '/') {
 249                                                                 break;
 250                                                         }
 251                                                 }
 252                                                 memmove(&ptr[1], pos, end - pos);
 253                                         }
 254                                 break;
 255
 256                                 default:
 257                                         /* something else */
 258                                         ++ptr;
 259                                 break;
 260                         }
 261                 }
 262         }
 263
 264         if (url->port) {
 265                 if (    ((url->port == 80) && !strcmp(url->scheme, "http"))
 266                         ||      ((url->port ==443) && !strcmp(url->scheme, "https"))
 267 #ifdef HTTP_HAVE_NETDB
 268                         ||      ((se = getservbyname(url->scheme, "tcp")) && se->s_port &&
 269                                         (url->port == ntohs(se->s_port)))
 270 #endif
 271                 ) {
 272                         url->port = 0;
 273                 }
 274         }
 275
 276         if (url_str) {
 277                 size_t len;
 278
 279                 *url_str = emalloc(HTTP_URL_MAXLEN + 1);
 280
 281                 **url_str = '\0';
 282                 strlcat(*url_str, url->scheme, HTTP_URL_MAXLEN);
 283                 strlcat(*url_str, "://", HTTP_URL_MAXLEN);
 284
 285                 if (url->user && *url->user) {
 286                         strlcat(*url_str, url->user, HTTP_URL_MAXLEN);
 287                         if (url->pass && *url->pass) {
 288                                 strlcat(*url_str, ":", HTTP_URL_MAXLEN);
 289                                 strlcat(*url_str, url->pass, HTTP_URL_MAXLEN);
 290                         }
 291                         strlcat(*url_str, "@", HTTP_URL_MAXLEN);
 292                 }
 293
 294                 strlcat(*url_str, url->host, HTTP_URL_MAXLEN);
 295
 296                 if (url->port) {
 297                         char port_str[8] = {0};
 298
 299                         snprintf(port_str, lenof(port_str), "%d", (int) url->port);
 300                         strlcat(*url_str, ":", HTTP_URL_MAXLEN);
 301                         strlcat(*url_str, port_str, HTTP_URL_MAXLEN);
 302                 }
 303
 304                 if (*url->path != '/') {
 305                         strlcat(*url_str, "/", HTTP_URL_MAXLEN);
 306                 }
 307                 strlcat(*url_str, url->path, HTTP_URL_MAXLEN);
 308
 309                 if (url->query && *url->query) {
 310                         strlcat(*url_str, "?", HTTP_URL_MAXLEN);
 311                         strlcat(*url_str, url->query, HTTP_URL_MAXLEN);
 312                 }
 313
 314                 if (url->fragment && *url->fragment) {
 315                         strlcat(*url_str, "#", HTTP_URL_MAXLEN);
 316                         strlcat(*url_str, url->fragment, HTTP_URL_MAXLEN);
 317                 }
 318
 319                 if (HTTP_URL_MAXLEN == (len = strlen(*url_str))) {
 320                         http_error(HE_NOTICE, HTTP_E_URL, "Length of URL exceeds HTTP_URL_MAXLEN");
 321                 }
 322                 if (url_len) {
 323                         *url_len = len;
 324                 }
 325         }
 326
 327         if (url_ptr) {
 328                 *url_ptr = url;
 329         } else {
 330                 php_url_free(url);
 331         }
 332 }
 333 /* }}} */
 334
 335 /* {{{ STATUS http_urlencode_hash_ex(HashTable *, zend_bool, char *, size_t, char **, size_t *) */
 336 PHP_HTTP_API STATUS _http_urlencode_hash_ex(HashTable *hash, zend_bool override_argsep,
 337         char *pre_encoded_data, size_t pre_encoded_len,
 338         char **encoded_data, size_t *encoded_len TSRMLS_DC)
 339 {
 340         char *arg_sep;
 341         size_t arg_sep_len;
 342         phpstr *qstr = phpstr_new();
 343
 344         if (override_argsep || !(arg_sep_len = strlen(arg_sep = INI_STR("arg_separator.output")))) {
 345                 arg_sep = HTTP_URL_ARGSEP;
 346                 arg_sep_len = lenof(HTTP_URL_ARGSEP);
 347         }
 348
 349         if (pre_encoded_len && pre_encoded_data) {
 350                 phpstr_append(qstr, pre_encoded_data, pre_encoded_len);
 351         }
 352
 353         if (SUCCESS != http_urlencode_hash_recursive(hash, qstr, arg_sep, arg_sep_len, NULL, 0)) {
 354                 phpstr_free(&qstr);
 355                 return FAILURE;
 356         }
 357
 358         phpstr_data(qstr, encoded_data, encoded_len);
 359         phpstr_free(&qstr);
 360
 361         return SUCCESS;
 362 }
 363 /* }}} */
 364
 365 /* {{{ http_urlencode_hash_recursive */
 366 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)
 367 {
 368         char *key = NULL;
 369         uint len = 0;
 370         ulong idx = 0;
 371         zval **data = NULL;
 372         HashPosition pos;
 373
 374         if (!ht || !str) {
 375                 http_error(HE_WARNING, HTTP_E_INVALID_PARAM, "Invalid parameters");
 376                 return FAILURE;
 377         }
 378         if (ht->nApplyCount > 0) {
 379                 return SUCCESS;
 380         }
 381
 382         FOREACH_HASH_KEYLENVAL(pos, ht, key, len, idx, data) {
 383                 char *encoded_key;
 384                 int encoded_len;
 385                 phpstr new_prefix;
 386
 387                 if (!data || !*data) {
 388                         phpstr_dtor(str);
 389                         return FAILURE;
 390                 }
 391
 392                 if (key) {
 393                         if (len && key[len - 1] == '\0') {
 394                                 --len;
 395                         }
 396                         encoded_key = php_url_encode(key, len, &encoded_len);
 397                         key = NULL;
 398                 } else {
 399                         encoded_len = spprintf(&encoded_key, 0, "%ld", idx);
 400                 }
 401
 402                 {
 403                         phpstr_init(&new_prefix);
 404                         if (prefix && prefix_len) {
 405                                 phpstr_append(&new_prefix, prefix, prefix_len);
 406                                 phpstr_appends(&new_prefix, "%5B");
 407                         }
 408
 409                         phpstr_append(&new_prefix, encoded_key, encoded_len);
 410                         efree(encoded_key);
 411
 412                         if (prefix && prefix_len) {
 413                                 phpstr_appends(&new_prefix, "%5D");
 414                         }
 415                         phpstr_fix(&new_prefix);
 416                 }
 417
 418                 if (Z_TYPE_PP(data) == IS_ARRAY) {
 419                         STATUS status;
 420                         ++ht->nApplyCount;
 421                         status = http_urlencode_hash_recursive(Z_ARRVAL_PP(data), str, arg_sep, arg_sep_len, PHPSTR_VAL(&new_prefix), PHPSTR_LEN(&new_prefix));
 422                         --ht->nApplyCount;
 423                         if (SUCCESS != status) {
 424                                 phpstr_dtor(&new_prefix);
 425                                 phpstr_dtor(str);
 426                                 return FAILURE;
 427                         }
 428                 } else {
 429                         zval *val = zval_copy(IS_STRING, *data);
 430
 431                         if (PHPSTR_LEN(str)) {
 432                                 phpstr_append(str, arg_sep, arg_sep_len);
 433                         }
 434                         phpstr_append(str, PHPSTR_VAL(&new_prefix), PHPSTR_LEN(&new_prefix));
 435                         phpstr_appends(str, "=");
 436
 437                         if (Z_STRLEN_P(val) && Z_STRVAL_P(val)) {
 438                                 char *encoded_val;
 439                                 int encoded_len;
 440
 441                                 encoded_val = php_url_encode(Z_STRVAL_P(val), Z_STRLEN_P(val), &encoded_len);
 442                                 phpstr_append(str, encoded_val, encoded_len);
 443                                 efree(encoded_val);
 444                         }
 445
 446                         zval_free(&val);
 447                 }
 448                 phpstr_dtor(&new_prefix);
 449         }
 450         return SUCCESS;
 451 }
 452 /* }}} */
 453
 454 /*
 455  * Local variables:
 456  * tab-width: 4
 457  * c-basic-offset: 4
 458  * End:
 459  * vim600: noet sw=4 ts=4 fdm=marker
 460  * vim<600: noet sw=4 ts=4
 461  */
 462