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_lock_func(CURL *handle, curl_lock_data data, curl_lock_access locktype, void *userptr);
  33 static void http_request_datashare_unlock_func(CURL *handle, curl_lock_data data, void *userptr);
  34
  35 PHP_MINIT_FUNCTION(http_request_datashare)
  36 {
  37         curl_lock_data val;
  38
  39         zend_hash_init(&http_request_datashare_options, 4, NULL, NULL, 1);
  40 #define ADD_DATASHARE_OPT(name, opt) \
  41         val = opt; \
  42         zend_hash_add(&http_request_datashare_options, name, sizeof(name), &val, sizeof(curl_lock_data), NULL)
  43         ADD_DATASHARE_OPT("cookie", CURL_LOCK_DATA_COOKIE);
  44         ADD_DATASHARE_OPT("dns", CURL_LOCK_DATA_DNS);
  45         ADD_DATASHARE_OPT("ssl", CURL_LOCK_DATA_SSL_SESSION);
  46         ADD_DATASHARE_OPT("connect", CURL_LOCK_DATA_CONNECT);
  47
  48         http_request_datashare_init_ex(&http_request_datashare_global, 1);
  49
  50         return SUCCESS;
  51 }
  52
  53 PHP_MSHUTDOWN_FUNCTION(http_request_datashare)
  54 {
  55         http_request_datashare_dtor(&http_request_datashare_global);
  56         zend_hash_destroy(&http_request_datashare_options);
  57
  58         return SUCCESS;
  59 }
  60
  61 PHP_HTTP_API http_request_datashare *_http_request_datashare_init_ex(http_request_datashare *share, zend_bool persistent TSRMLS_DC)
  62 {
  63         int i;
  64         zend_bool free_share;
  65
  66         if ((free_share = !share)) {
  67                 share = pemalloc(sizeof(http_request_datashare), persistent);
  68         }
  69         memset(share, 0, sizeof(http_request_datashare));
  70
  71         HTTP_CHECK_CURL_INIT(share->ch, curl_share_init(), ;);
  72         if (!share->ch) {
  73                 if (free_share) {
  74                         pefree(share, persistent);
  75                 }
  76                 return NULL;
  77         }
  78
  79         if ((share->persistent = persistent)) {
  80                 share->locks = pecalloc(CURL_LOCK_DATA_LAST, sizeof(http_request_datashare_lock), 1);
  81                 for (i = 0; i < CURL_LOCK_DATA_LAST; ++i) {
  82                         share->locks[i].mx = tsrm_mutex_alloc();
  83                 }
  84                 curl_share_setopt(share->ch, CURLSHOPT_LOCKFUNC, http_request_datashare_lock_func);
  85                 curl_share_setopt(share->ch, CURLSHOPT_UNLOCKFUNC, http_request_datashare_unlock_func);
  86                 curl_share_setopt(share->ch, CURLSHOPT_USERDATA, share);
  87         }
  88
  89         zend_llist_init(&share->handles, sizeof(zval *), ZVAL_PTR_DTOR, persistent);
  90
  91         return share;
  92 }
  93
  94 PHP_HTTP_API STATUS _http_request_datashare_attach(http_request_datashare *share, zval *request TSRMLS_DC)
  95 {
  96         CURLcode rc;
  97         getObjectEx(http_request_object, obj, request);
  98
  99         if (obj->share) {
 100                 if (obj->share == share)  {
 101                         return SUCCESS;
 102                 } else if (SUCCESS != http_request_datashare_detach(obj->share, request)) {
 103                         return FAILURE;
 104                 }
 105         }
 106
 107         if (CURLE_OK != (rc = curl_easy_setopt(obj->request->ch, CURLOPT_SHARE, share->ch))) {
 108                 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));
 109                 return FAILURE;
 110         }
 111
 112         obj->share = share;
 113         ZVAL_ADDREF(request);
 114         zend_llist_add_element(&share->handles, (void *) &request);
 115
 116         return SUCCESS;
 117 }
 118
 119 PHP_HTTP_API STATUS _http_request_datashare_detach(http_request_datashare *share, zval *request TSRMLS_DC)
 120 {
 121         CURLcode rc;
 122         getObjectEx(http_request_object, obj, request);
 123
 124         if (!obj->share) {
 125                 http_error_ex(HE_WARNING, HTTP_E_REQUEST, "HttpRequest object(#%d) is not attached to any HttpRequestDataShare", Z_OBJ_HANDLE_P(request));
 126         } else if (obj->share != share) {
 127                 http_error_ex(HE_WARNING, HTTP_E_REQUEST, "HttpRequest object(#%d) is not attached to this HttpRequestDataShare", Z_OBJ_HANDLE_P(request));
 128         } else if (CURLE_OK != (rc = curl_easy_setopt(obj->request->ch, CURLOPT_SHARE, NULL))) {
 129                 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));
 130         } else {
 131                 obj->share = NULL;
 132                 zend_llist_del_element(&share->handles, request, http_request_datashare_compare_handles);
 133                 return SUCCESS;
 134         }
 135         return FAILURE;
 136 }
 137
 138 PHP_HTTP_API void _http_request_datashare_detach_all(http_request_datashare *share TSRMLS_DC)
 139 {
 140         zval **r;
 141
 142         while ((r = zend_llist_get_first(&share->handles))) {
 143                 http_request_datashare_detach(share, *r);
 144         }
 145 }
 146
 147 PHP_HTTP_API void _http_request_datashare_dtor(http_request_datashare *share TSRMLS_DC)
 148 {
 149         int i;
 150
 151         zend_llist_destroy(&share->handles);
 152         curl_share_cleanup(share->ch);
 153         if (share->persistent) {
 154                 for (i = 0; i < CURL_LOCK_DATA_LAST; ++i) {
 155                         tsrm_mutex_free(share->locks[i].mx);
 156                 }
 157                 pefree(share->locks, 1);
 158         }
 159 }
 160
 161 PHP_HTTP_API void _http_request_datashare_free(http_request_datashare **share TSRMLS_DC)
 162 {
 163         http_request_datashare_dtor(*share);
 164         pefree(*share, (*share)->persistent);
 165         *share = NULL;
 166 }
 167
 168 PHP_HTTP_API STATUS _http_request_datashare_set(http_request_datashare *share, const char *option, size_t option_len, zend_bool enable TSRMLS_DC)
 169 {
 170         curl_lock_data *opt;
 171         CURLSHcode rc;
 172
 173         if (SUCCESS == zend_hash_find(&http_request_datashare_options, (char *) option, option_len + 1, (void *) &opt)) {
 174                 if (CURLSHE_OK == (rc = curl_share_setopt(share->ch, enable ? CURLSHOPT_SHARE : CURLSHOPT_UNSHARE, *opt))) {
 175                         return SUCCESS;
 176                 }
 177                 http_error_ex(HE_WARNING, HTTP_E_REQUEST, "Could not %s sharing of %s data: %s",  enable ? "enable" : "disable", option, curl_share_strerror(rc));
 178         }
 179         return FAILURE;
 180 }
 181
 182 static int http_request_datashare_compare_handles(void *h1, void *h2)
 183 {
 184         return (Z_OBJ_HANDLE_PP((zval **) h1) == Z_OBJ_HANDLE_P((zval *) h2));
 185 }
 186
 187 static void http_request_datashare_lock_func(CURL *handle, curl_lock_data data, curl_lock_access locktype, void *userptr)
 188 {
 189         http_request_datashare *share = (http_request_datashare *) userptr;
 190
 191         /* TSRM can't distinguish shared/exclusive locks */
 192         tsrm_mutex_lock(share->locks[data].mx);
 193         share->locks[data].ch = handle;
 194 }
 195
 196 static void http_request_datashare_unlock_func(CURL *handle, curl_lock_data data, void *userptr)
 197 {
 198         http_request_datashare *share = (http_request_datashare *) userptr;
 199
 200         if (share->locks[data].ch == handle) {
 201                 tsrm_mutex_unlock(share->locks[data].mx);
 202         }
 203 }
 204
 205 #endif /* ZEND_ENGINE_2 && HTTP_HAVE_CURL */
 206
 207
 208 /*
 209  * Local variables:
 210  * tab-width: 4
 211  * c-basic-offset: 4
 212  * End:
 213  * vim600: noet sw=4 ts=4 fdm=marker
 214  * vim<600: noet sw=4 ts=4
 215  */
 216