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 = estrdup(url);
  70         php_url *purl = php_url_parse(abs);
  71
  72         STR_SET(abs, NULL);
  73
  74         if (purl) {
  75                 http_build_url(0, purl, NULL, NULL, &abs, NULL);
  76                 php_url_free(purl);
  77         } else {
  78                 http_error_ex(HE_WARNING, HTTP_E_URL, "Could not parse URL (%s)", url);
  79         }
  80
  81         return abs;
  82 }
  83
  84 /* {{{ void http_build_url(int flags, const php_url *, const php_url *, php_url **, char **, size_t *) */
  85 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)
  86 {
  87 #ifdef HTTP_HAVE_NETDB
  88         struct servent *se;
  89 #endif
  90         php_url *url = ecalloc(1, sizeof(php_url));
  91
  92 #define __URLSET(u,n) \
  93         ((u)&&(u)->n)
  94 #define __URLCPY(n) \
  95         url->n = __URLSET(new_url,n) ? estrdup(new_url->n) : (__URLSET(old_url,n) ? estrdup(old_url->n) : NULL)
  96
  97         if (!(flags & HTTP_URL_STRIP_PORT)) {
  98                 url->port = (new_url&&new_url->port) ? new_url->port : ((old_url) ? old_url->port : 0);
  99         }
 100         if ((!(flags & HTTP_URL_STRIP_AUTH)) && (!(flags & HTTP_URL_STRIP_USER))) {
 101                 __URLCPY(user);
 102         }
 103         if ((!(flags & HTTP_URL_STRIP_AUTH)) && (!(flags & HTTP_URL_STRIP_PASS))) {
 104                 __URLCPY(pass);
 105         }
 106
 107         __URLCPY(scheme);
 108         __URLCPY(host);
 109
 110         if (!(flags & HTTP_URL_STRIP_PATH)) {
 111                 if ((flags & HTTP_URL_JOIN_PATH) && __URLSET(old_url, path) && __URLSET(new_url, path) && *new_url->path != '/') {
 112                         size_t old_path_len = strlen(old_url->path), new_path_len = strlen(new_url->path);
 113
 114                         url->path = ecalloc(1, old_path_len + new_path_len + 1 + 1);
 115
 116                         strcat(url->path, old_url->path);
 117                         if (url->path[old_path_len - 1] != '/') {
 118                                 php_dirname(url->path, old_path_len);
 119                                 strcat(url->path, "/");
 120                         }
 121                         strcat(url->path, new_url->path);
 122                 } else {
 123                         __URLCPY(path);
 124                 }
 125         }
 126         if (!(flags & HTTP_URL_STRIP_QUERY)) {
 127                 if ((flags & HTTP_URL_JOIN_QUERY) && __URLSET(new_url, query) && __URLSET(old_url, query)) {
 128                         url->query = ecalloc(1, strlen(new_url->query) + strlen(old_url->query) + 1 + 1);
 129                         strcat(url->query, old_url->query);
 130                         strcat(url->query, "&");
 131                         strcat(url->query, new_url->query);
 132                 } else {
 133                         __URLCPY(query);
 134                 }
 135         }
 136         if (!(flags & HTTP_URL_STRIP_FRAGMENT)) {
 137                 __URLCPY(fragment);
 138         }
 139
 140         if (!url->scheme) {
 141                 switch (url->port)
 142                 {
 143                         case 443:
 144                                 url->scheme = estrndup("https", lenof("https"));
 145                         break;
 146
 147 #ifndef HTTP_HAVE_NETDB
 148                         default:
 149 #endif
 150                         case 80:
 151                                 url->scheme = estrndup("http", lenof("http"));
 152                         break;
 153
 154 #ifdef HTTP_HAVE_NETDB
 155                         default:
 156                                 if ((se = getservbyport(htons(url->port), "tcp")) && se->s_name) {
 157                                         url->scheme = estrdup(se->s_name);
 158                                 } else {
 159                                         url->scheme = estrndup("http", lenof("http"));
 160                                 }
 161                         break;
 162 #endif
 163                 }
 164         }
 165
 166         if (!url->host) {
 167                 zval *zhost;
 168
 169                 if ((((zhost = http_get_server_var("HTTP_HOST")) ||
 170                                 (zhost = http_get_server_var("SERVER_NAME")))) && Z_STRLEN_P(zhost)) {
 171                         url->host = estrndup(Z_STRVAL_P(zhost), Z_STRLEN_P(zhost));
 172                 } else {
 173                         url->host = localhostname();
 174                 }
 175         }
 176
 177         if (!url->path) {
 178                 if (SG(request_info).request_uri && *SG(request_info).request_uri) {
 179                         const char *q = strchr(SG(request_info).request_uri, '?');
 180
 181                         if (q) {
 182                                 url->path = estrndup(SG(request_info).request_uri, q - SG(request_info).request_uri);
 183                         } else {
 184                                 url->path = estrdup(SG(request_info).request_uri);
 185                         }
 186                 } else {
 187                         url->path = estrndup("/", 1);
 188                 }
 189         } else if (*url->path != '/') {
 190                 if (SG(request_info).request_uri && *SG(request_info).request_uri) {
 191                         const char *q = strchr(SG(request_info).request_uri, '?');
 192                         char *uri, *path;
 193                         size_t len;
 194
 195                         if (q) {
 196                                 uri = estrndup(SG(request_info).request_uri, len = q - SG(request_info).request_uri);
 197                         } else {
 198                                 uri = estrndup(SG(request_info).request_uri, len = strlen(SG(request_info).request_uri));
 199                         }
 200
 201                         php_dirname(uri, len);
 202                         spprintf(&path, 0, "%s/%s", uri, url->path);
 203                         efree(uri);
 204                         STR_SET(url->path, path);
 205                 } else {
 206                         char *uri;
 207
 208                         spprintf(&uri, 0, "/%s", url->path);
 209                         STR_SET(url->path, uri);
 210                 }
 211         }
 212         if (url->path) {
 213                 char *ptr, *end = url->path + strlen(url->path) + 1;
 214
 215                 for (ptr = strstr(url->path, "/."); ptr; ptr = strstr(ptr, "/.")) {
 216                         switch (ptr[2])
 217                         {
 218                                 case '\0':
 219                                         ptr[1] = '\0';
 220                                 break;
 221
 222                                 case '/':
 223                                         memmove(&ptr[1], &ptr[3], end - &ptr[3]);
 224                                 break;
 225
 226                                 case '.':
 227                                         if (ptr[3] == '/') {
 228                                                 char *pos = &ptr[4];
 229                                                 while (ptr != url->path) {
 230                                                         if (*--ptr == '/') {
 231                                                                 break;
 232                                                         }
 233                                                 }
 234                                                 memmove(&ptr[1], pos, end - pos);
 235                                         }
 236                                 break;
 237
 238                                 default:
 239                                         /* something else */
 240                                         ++ptr;
 241                                 break;
 242                         }
 243                 }
 244         }
 245
 246         if (url->port) {
 247                 if (    ((url->port == 80) && !strcmp(url->scheme, "http"))
 248                         ||      ((url->port ==443) && !strcmp(url->scheme, "https"))
 249 #ifdef HTTP_HAVE_NETDB
 250                         ||      ((se = getservbyname(url->scheme, "tcp")) && se->s_port &&
 251                                         (url->port == ntohs(se->s_port)))
 252 #endif
 253                 ) {
 254                         url->port = 0;
 255                 }
 256         }
 257
 258         if (url_str) {
 259                 size_t len;
 260
 261                 *url_str = emalloc(HTTP_URL_MAXLEN + 1);
 262
 263                 **url_str = '\0';
 264                 strlcat(*url_str, url->scheme, HTTP_URL_MAXLEN);
 265                 strlcat(*url_str, "://", HTTP_URL_MAXLEN);
 266
 267                 if (url->user && *url->user) {
 268                         strlcat(*url_str, url->user, HTTP_URL_MAXLEN);
 269                         if (url->pass && *url->pass) {
 270                                 strlcat(*url_str, ":", HTTP_URL_MAXLEN);
 271                                 strlcat(*url_str, url->pass, HTTP_URL_MAXLEN);
 272                         }
 273                         strlcat(*url_str, "@", HTTP_URL_MAXLEN);
 274                 }
 275
 276                 strlcat(*url_str, url->host, HTTP_URL_MAXLEN);
 277
 278                 if (url->port) {
 279                         char port_str[6] = {0};
 280
 281                         snprintf(port_str, 5, "%d", (int) url->port);
 282                         strlcat(*url_str, ":", HTTP_URL_MAXLEN);
 283                         strlcat(*url_str, port_str, HTTP_URL_MAXLEN);
 284                 }
 285
 286                 if (*url->path != '/') {
 287                         strlcat(*url_str, "/", HTTP_URL_MAXLEN);
 288                 }
 289                 strlcat(*url_str, url->path, HTTP_URL_MAXLEN);
 290
 291                 if (url->query && *url->query) {
 292                         strlcat(*url_str, "?", HTTP_URL_MAXLEN);
 293                         strlcat(*url_str, url->query, HTTP_URL_MAXLEN);
 294                 }
 295
 296                 if (url->fragment && *url->fragment) {
 297                         strlcat(*url_str, "#", HTTP_URL_MAXLEN);
 298                         strlcat(*url_str, url->fragment, HTTP_URL_MAXLEN);
 299                 }
 300
 301                 if (HTTP_URL_MAXLEN == (len = strlen(*url_str))) {
 302                         http_error(HE_NOTICE, HTTP_E_URL, "Length of URL exceeds HTTP_URL_MAXLEN");
 303                 }
 304                 if (url_len) {
 305                         *url_len = len;
 306                 }
 307         }
 308
 309         if (url_ptr) {
 310                 *url_ptr = url;
 311         } else {
 312                 php_url_free(url);
 313         }
 314 }
 315 /* }}} */
 316
 317 /* {{{ STATUS http_urlencode_hash_ex(HashTable *, zend_bool, char *, size_t, char **, size_t *) */
 318 PHP_HTTP_API STATUS _http_urlencode_hash_ex(HashTable *hash, zend_bool override_argsep,
 319         char *pre_encoded_data, size_t pre_encoded_len,
 320         char **encoded_data, size_t *encoded_len TSRMLS_DC)
 321 {
 322         char *arg_sep;
 323         size_t arg_sep_len;
 324         phpstr *qstr = phpstr_new();
 325
 326         if (override_argsep || !(arg_sep_len = strlen(arg_sep = INI_STR("arg_separator.output")))) {
 327                 arg_sep = HTTP_URL_ARGSEP;
 328                 arg_sep_len = lenof(HTTP_URL_ARGSEP);
 329         }
 330
 331         if (pre_encoded_len && pre_encoded_data) {
 332                 phpstr_append(qstr, pre_encoded_data, pre_encoded_len);
 333         }
 334
 335         if (SUCCESS != http_urlencode_hash_recursive(hash, qstr, arg_sep, arg_sep_len, NULL, 0)) {
 336                 phpstr_free(&qstr);
 337                 return FAILURE;
 338         }
 339
 340         phpstr_data(qstr, encoded_data, encoded_len);
 341         phpstr_free(&qstr);
 342
 343         return SUCCESS;
 344 }
 345 /* }}} */
 346
 347 /* {{{ http_urlencode_hash_recursive */
 348 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)
 349 {
 350         char *key = NULL;
 351         uint len = 0;
 352         ulong idx = 0;
 353         zval **data = NULL;
 354         HashPosition pos;
 355
 356         if (!ht || !str) {
 357                 http_error(HE_WARNING, HTTP_E_INVALID_PARAM, "Invalid parameters");
 358                 return FAILURE;
 359         }
 360         if (ht->nApplyCount > 0) {
 361                 return SUCCESS;
 362         }
 363
 364         FOREACH_HASH_KEYLENVAL(pos, ht, key, len, idx, data) {
 365                 char *encoded_key;
 366                 int encoded_len;
 367                 phpstr new_prefix;
 368
 369                 if (!data || !*data) {
 370                         phpstr_dtor(str);
 371                         return FAILURE;
 372                 }
 373
 374                 if (key) {
 375                         if (len && key[len - 1] == '\0') {
 376                                 --len;
 377                         }
 378                         encoded_key = php_url_encode(key, len, &encoded_len);
 379                         key = NULL;
 380                 } else {
 381                         encoded_len = spprintf(&encoded_key, 0, "%ld", idx);
 382                 }
 383
 384                 {
 385                         phpstr_init(&new_prefix);
 386                         if (prefix && prefix_len) {
 387                                 phpstr_append(&new_prefix, prefix, prefix_len);
 388                                 phpstr_appends(&new_prefix, "[");
 389                         }
 390
 391                         phpstr_append(&new_prefix, encoded_key, encoded_len);
 392                         efree(encoded_key);
 393
 394                         if (prefix && prefix_len) {
 395                                 phpstr_appends(&new_prefix, "]");
 396                         }
 397                         phpstr_fix(&new_prefix);
 398                 }
 399
 400                 if (Z_TYPE_PP(data) == IS_ARRAY) {
 401                         STATUS status;
 402                         ++ht->nApplyCount;
 403                         status = http_urlencode_hash_recursive(Z_ARRVAL_PP(data), str, arg_sep, arg_sep_len, PHPSTR_VAL(&new_prefix), PHPSTR_LEN(&new_prefix));
 404                         --ht->nApplyCount;
 405                         if (SUCCESS != status) {
 406                                 phpstr_dtor(&new_prefix);
 407                                 phpstr_dtor(str);
 408                                 return FAILURE;
 409                         }
 410                 } else {
 411                         zval *val = zval_copy(IS_STRING, *data);
 412
 413                         if (PHPSTR_LEN(str)) {
 414                                 phpstr_append(str, arg_sep, arg_sep_len);
 415                         }
 416                         phpstr_append(str, PHPSTR_VAL(&new_prefix), PHPSTR_LEN(&new_prefix));
 417                         phpstr_appends(str, "=");
 418
 419                         if (Z_STRLEN_P(val) && Z_STRVAL_P(val)) {
 420                                 char *encoded_val;
 421                                 int encoded_len;
 422
 423                                 encoded_val = php_url_encode(Z_STRVAL_P(val), Z_STRLEN_P(val), &encoded_len);
 424                                 phpstr_append(str, encoded_val, encoded_len);
 425                                 efree(encoded_val);
 426                         }
 427
 428                         zval_free(&val);
 429                 }
 430                 phpstr_dtor(&new_prefix);
 431         }
 432         return SUCCESS;
 433 }
 434 /* }}} */
 435
 436 /*
 437  * Local variables:
 438  * tab-width: 4
 439  * c-basic-offset: 4
 440  * End:
 441  * vim600: noet sw=4 ts=4 fdm=marker
 442  * vim<600: noet sw=4 ts=4
 443  */
 444