git.m6w6.name Git - m6w6/ext-http/blob - http_request_datashare_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_CURL
  16 #include "php_http.h"
  17
  18 #if defined(ZEND_ENGINE_2) && defined(HTTP_HAVE_CURL)
  19
  20 #include "php_http_api.h"
  21 #include "php_http_request_datashare_api.h"
  22 #include "php_http_request_api.h"
  23 #include "php_http_request_object.h"
  24
  25 #ifndef HAVE_CURL_SHARE_STRERROR
  26 #       define curl_share_strerror(dummy) "unknown error"
  27 #endif
  28
  29 static HashTable http_request_datashare_options;
  30 static http_request_datashare http_request_datashare_global;
  31 static int http_request_datashare_compare_handles(void *h1, void *h2);
  32 static void http_request_datashare_destroy_handles(void *el);
  33 #ifdef ZTS
  34 static void http_request_datashare_lock_func(CURL *handle, curl_lock_data data, curl_lock_access locktype, void *userptr);
  35 static void http_request_datashare_unlock_func(CURL *handle, curl_lock_data data, void *userptr);
  36 #endif
  37
  38 http_request_datashare *_http_request_datashare_global_get(void)
  39 {
  40         return &http_request_datashare_global;
  41 }
  42
  43 PHP_MINIT_FUNCTION(http_request_datashare)
  44 {
  45         curl_lock_data val;
  46
  47         zend_hash_init(&http_request_datashare_options, 4, NULL, NULL, 1);
  48 #define ADD_DATASHARE_OPT(name, opt) \
  49         val = opt; \
  50         zend_hash_add(&http_request_datashare_options, name, sizeof(name), &val, sizeof(curl_lock_data), NULL)
  51         ADD_DATASHARE_OPT("cookie", CURL_LOCK_DATA_COOKIE);
  52         ADD_DATASHARE_OPT("dns", CURL_LOCK_DATA_DNS);
  53         ADD_DATASHARE_OPT("ssl", CURL_LOCK_DATA_SSL_SESSION);
  54         ADD_DATASHARE_OPT("connect", CURL_LOCK_DATA_CONNECT);
  55
  56         http_request_datashare_init_ex(&http_request_datashare_global, 1);
  57
  58         return SUCCESS;
  59 }
  60
  61 PHP_MSHUTDOWN_FUNCTION(http_request_datashare)
  62 {
  63         http_request_datashare_dtor(&http_request_datashare_global);
  64         zend_hash_destroy(&http_request_datashare_options);
  65
  66         return SUCCESS;
  67 }
  68
  69 PHP_RINIT_FUNCTION(http_request_datashare)
  70 {
  71         zend_llist_init(&HTTP_G->request.datashare.handles, sizeof(zval *), http_request_datashare_destroy_handles, 0);
  72
  73         return SUCCESS;
  74 }
  75
  76 PHP_RSHUTDOWN_FUNCTION(http_request_datashare)
  77 {
  78         zend_llist_destroy(&HTTP_G->request.datashare.handles);
  79
  80         return SUCCESS;
  81 }
  82
  83 PHP_HTTP_API http_request_datashare *_http_request_datashare_init_ex(http_request_datashare *share, zend_bool persistent TSRMLS_DC)
  84 {
  85         zend_bool free_share;
  86
  87         if ((free_share = !share)) {
  88                 share = pemalloc(sizeof(http_request_datashare), persistent);
  89         }
  90         memset(share, 0, sizeof(http_request_datashare));
  91
  92         HTTP_CHECK_CURL_INIT(share->ch, curl_share_init(), ;);
  93         if (!share->ch) {
  94                 if (free_share) {
  95                         pefree(share, persistent);
  96                 }
  97                 return NULL;
  98         }
  99
 100         if (!(share->persistent = persistent)) {
 101                 share->handles = emalloc(sizeof(zend_llist));
 102                 zend_llist_init(share->handles, sizeof(zval *), ZVAL_PTR_DTOR, 0);
 103 #ifdef ZTS
 104         } else {
 105                 int i;
 106
 107                 share->locks = pecalloc(CURL_LOCK_DATA_LAST, sizeof(http_request_datashare_lock), 1);
 108                 for (i = 0; i < CURL_LOCK_DATA_LAST; ++i) {
 109                         share->locks[i].mx = tsrm_mutex_alloc();
 110                 }
 111                 curl_share_setopt(share->ch, CURLSHOPT_LOCKFUNC, http_request_datashare_lock_func);
 112                 curl_share_setopt(share->ch, CURLSHOPT_UNLOCKFUNC, http_request_datashare_unlock_func);
 113                 curl_share_setopt(share->ch, CURLSHOPT_USERDATA, share);
 114 #endif
 115         }
 116
 117         return share;
 118 }
 119
 120 PHP_HTTP_API STATUS _http_request_datashare_attach(http_request_datashare *share, zval *request TSRMLS_DC)
 121 {
 122         CURLcode rc;
 123         getObjectEx(http_request_object, obj, request);
 124
 125         if (obj->share) {
 126                 if (obj->share == share)  {
 127                         return SUCCESS;
 128                 } else if (SUCCESS != http_request_datashare_detach(obj->share, request)) {
 129                         return FAILURE;
 130                 }
 131         }
 132
 133         if (CURLE_OK != (rc = curl_easy_setopt(obj->request->ch, CURLOPT_SHARE, share->ch))) {
 134                 http_error_ex(HE_WARNING, HTTP_E_REQUEST, "Could not attach HttpRequest object(#%d) to the HttpRequestDataShare: %s", Z_OBJ_HANDLE_P(request), curl_share_strerror(rc));
 135                 return FAILURE;
 136         }
 137
 138         obj->share = share;
 139         ZVAL_ADDREF(request);
 140         zend_llist_add_element(HTTP_RSHARE_HANDLES(share), (void *) &request);
 141
 142         return SUCCESS;
 143 }
 144
 145 PHP_HTTP_API STATUS _http_request_datashare_detach(http_request_datashare *share, zval *request TSRMLS_DC)
 146 {
 147         CURLcode rc;
 148         getObjectEx(http_request_object, obj, request);
 149
 150         if (!obj->share) {
 151                 http_error_ex(HE_WARNING, HTTP_E_REQUEST, "HttpRequest object(#%d) is not attached to any HttpRequestDataShare", Z_OBJ_HANDLE_P(request));
 152         } else if (obj->share != share) {
 153                 http_error_ex(HE_WARNING, HTTP_E_REQUEST, "HttpRequest object(#%d) is not attached to this HttpRequestDataShare", Z_OBJ_HANDLE_P(request));
 154         } else if (CURLE_OK != (rc = curl_easy_setopt(obj->request->ch, CURLOPT_SHARE, NULL))) {
 155                 http_error_ex(HE_WARNING, HTTP_E_REQUEST, "Could not detach HttpRequest object(#%d) from the HttpRequestDataShare: %s", Z_OBJ_HANDLE_P(request), curl_share_strerror(rc));
 156         } else {
 157                 obj->share = NULL;
 158                 zend_llist_del_element(HTTP_RSHARE_HANDLES(share), request, http_request_datashare_compare_handles);
 159                 return SUCCESS;
 160         }
 161         return FAILURE;
 162 }
 163
 164 PHP_HTTP_API void _http_request_datashare_detach_all(http_request_datashare *share TSRMLS_DC)
 165 {
 166         zval **r;
 167
 168         while ((r = zend_llist_get_first(HTTP_RSHARE_HANDLES(share)))) {
 169                 http_request_datashare_detach(share, *r);
 170         }
 171 }
 172
 173 PHP_HTTP_API void _http_request_datashare_dtor(http_request_datashare *share TSRMLS_DC)
 174 {
 175         if (!share->persistent) {
 176                 zend_llist_destroy(share->handles);
 177                 efree(share->handles);
 178         }
 179         curl_share_cleanup(share->ch);
 180 #ifdef ZTS
 181         if (share->persistent) {
 182                 int i;
 183
 184                 for (i = 0; i < CURL_LOCK_DATA_LAST; ++i) {
 185                         tsrm_mutex_free(share->locks[i].mx);
 186                 }
 187                 pefree(share->locks, 1);
 188         }
 189 #endif
 190 }
 191
 192 PHP_HTTP_API void _http_request_datashare_free(http_request_datashare **share TSRMLS_DC)
 193 {
 194         http_request_datashare_dtor(*share);
 195         pefree(*share, (*share)->persistent);
 196         *share = NULL;
 197 }
 198
 199 PHP_HTTP_API STATUS _http_request_datashare_set(http_request_datashare *share, const char *option, size_t option_len, zend_bool enable TSRMLS_DC)
 200 {
 201         curl_lock_data *opt;
 202         CURLSHcode rc;
 203
 204         if (SUCCESS == zend_hash_find(&http_request_datashare_options, (char *) option, option_len + 1, (void *) &opt)) {
 205                 if (CURLSHE_OK == (rc = curl_share_setopt(share->ch, enable ? CURLSHOPT_SHARE : CURLSHOPT_UNSHARE, *opt))) {
 206                         return SUCCESS;
 207                 }
 208                 http_error_ex(HE_WARNING, HTTP_E_REQUEST, "Could not %s sharing of %s data: %s",  enable ? "enable" : "disable", option, curl_share_strerror(rc));
 209         }
 210         return FAILURE;
 211 }
 212
 213 static int http_request_datashare_compare_handles(void *h1, void *h2)
 214 {
 215         return (Z_OBJ_HANDLE_PP((zval **) h1) == Z_OBJ_HANDLE_P((zval *) h2));
 216 }
 217
 218 static void http_request_datashare_destroy_handles(void *el)
 219 {
 220         zval **r = (zval **) el;
 221         TSRMLS_FETCH();
 222         getObjectEx(http_request_object, obj, *r);
 223
 224         curl_easy_setopt(obj->request->ch, CURLOPT_SHARE, NULL);
 225         zval_ptr_dtor(r);
 226 }
 227
 228 #ifdef ZTS
 229 static void http_request_datashare_lock_func(CURL *handle, curl_lock_data data, curl_lock_access locktype, void *userptr)
 230 {
 231         http_request_datashare *share = (http_request_datashare *) userptr;
 232
 233         /* TSRM can't distinguish shared/exclusive locks */
 234         tsrm_mutex_lock(share->locks[data].mx);
 235         share->locks[data].ch = handle;
 236 }
 237
 238 static void http_request_datashare_unlock_func(CURL *handle, curl_lock_data data, void *userptr)
 239 {
 240         http_request_datashare *share = (http_request_datashare *) userptr;
 241
 242         if (share->locks[data].ch == handle) {
 243                 tsrm_mutex_unlock(share->locks[data].mx);
 244         }
 245 }
 246 #endif
 247
 248 #endif /* ZEND_ENGINE_2 && HTTP_HAVE_CURL */
 249
 250
 251 /*
 252  * Local variables:
 253  * tab-width: 4
 254  * c-basic-offset: 4
 255  * End:
 256  * vim600: noet sw=4 ts=4 fdm=marker
 257  * vim<600: noet sw=4 ts=4
 258  */
 259