forked from php/pecl-web_services-oauth
/
provider.c
1205 lines (1024 loc) · 38.5 KB
/
provider.c
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/*
+----------------------------------------------------------------------+
| See LICENSE file for further copyright information |
+----------------------------------------------------------------------+
| Authors: John Jawed <jawed@php.net> |
| Felipe Pena <felipe@php.net> |
| Rasmus Lerdorf <rasmus@php.net> |
| Tjerk Meesters <datibbaw@php.net> |
+----------------------------------------------------------------------+
*/
#include "php_oauth.h"
#include "provider.h"
#if PHP_WIN32
# include <windows.h>
# include <Wincrypt.h>
#endif
#include "fcntl.h"
static zend_object_handlers oauth_provider_obj_hndlrs;
static zend_class_entry *oauthprovider;
static inline void oauth_provider_set_param_member(zval *provider_obj, char *prop_name, zval *prop) /* {{{ */
{
zend_update_property(Z_OBJCE_P(provider_obj), provider_obj, prop_name, strlen(prop_name), prop);
}
/* }}} */
static inline php_oauth_provider *fetch_sop_object(zval *obj) /* {{{ */
{
php_oauth_provider *sop = Z_SOP_P(obj);
sop->this_ptr = obj;
return sop;
}
/* }}} */
static int oauth_provider_set_default_required_params(HashTable *ht) /* {{{ */
{
char *required_params[] = {"oauth_consumer_key", "oauth_signature", "oauth_signature_method", "oauth_nonce", "oauth_timestamp", "oauth_token", NULL};
unsigned int idx = 0;
do {
zval tmp;
ZVAL_NULL(&tmp);
if(zend_hash_str_add(ht, required_params[idx], strlen(required_params[idx]), &tmp) == NULL) {
return FAILURE;
}
++idx;
} while(required_params[idx]);
return SUCCESS;
}
/* }}} */
static int oauth_provider_remove_required_param(HashTable *ht, char *required_param) /* {{{ */
{
zval *dest_entry;
zend_string *key;
ulong num_key;
HashPosition hpos;
if((dest_entry = zend_hash_str_find(ht, required_param, strlen(required_param))) == NULL) {
return FAILURE;
} else {
zend_hash_internal_pointer_reset_ex(ht, &hpos);
do {
if(zend_hash_get_current_key_ex(ht, &key, &num_key, &hpos)!=FAILURE) {
if(!strcmp(ZSTR_VAL(key), required_param)) {
zend_hash_del(ht, key);
return SUCCESS;
}
}
} while(zend_hash_move_forward_ex(ht, &hpos)==SUCCESS);
}
return FAILURE;
}
/* }}} */
static int oauth_provider_add_required_param(HashTable *ht, char *required_param) /* {{{ */
{
zval zparam, *dest_entry;
if((dest_entry = zend_hash_str_find(ht, required_param, strlen(required_param))) == NULL) {
ZVAL_NULL(&zparam);
if(zend_hash_str_add(ht, required_param, strlen(required_param), &zparam) == NULL) {
return FAILURE;
}
}
return SUCCESS;
}
/* }}} */
static void oauth_provider_apply_custom_param(HashTable *ht, HashTable *custom) /* {{{ */
{
HashPosition custompos;
zval *entry;
zend_string *key;
ulong num_key;
zend_hash_internal_pointer_reset_ex(custom, &custompos);
do {
if ((entry = zend_hash_get_current_data_ex(custom, &custompos)) != NULL && HASH_KEY_IS_STRING == zend_hash_get_current_key_ex(custom, &key, &num_key, &custompos)) {
if (IS_NULL == Z_TYPE_P(entry)) {
zend_hash_del(ht, key);
} else {
Z_TRY_ADDREF_P(entry);
zend_hash_update(ht, key, entry);
}
}
} while (SUCCESS==zend_hash_move_forward_ex(custom, &custompos));
}
/* }}} */
static int oauth_provider_token_required(zval *provider_obj, char* uri)
{
zval *is_req_token_api, rv;
is_req_token_api = zend_read_property(Z_OBJCE_P(provider_obj), provider_obj, "request_token_endpoint", sizeof("request_token_endpoint") - 1, 1, &rv);
if (Z_TYPE_P(is_req_token_api) == IS_FALSE) {
php_oauth_provider *sop;
sop = fetch_sop_object(provider_obj);
/* do uri matching on the relative path */
if (sop->endpoint_paths[OAUTH_PROVIDER_PATH_REQUEST]) {
const char *reqtoken_path = sop->endpoint_paths[OAUTH_PROVIDER_PATH_REQUEST];
int uri_matched = 0;
if (reqtoken_path[0]=='/') {
/* match against relative url */
php_url *urlparts = php_url_parse_ex(uri, strlen(uri));
uri_matched = urlparts && 0==strncmp(OAUTH_URL_STR(urlparts->path), reqtoken_path, strlen(reqtoken_path));
php_url_free(urlparts);
} else {
/* match against full uri */
uri_matched = 0==strncmp(uri, reqtoken_path, strlen(reqtoken_path));
}
/* token required if no match was found */
if (uri_matched) {
ZVAL_BOOL(is_req_token_api, 1);
return 0;
}
}
/* no matches, token required */
return 1;
}
return 0;
}
static void oauth_provider_check_required_params(HashTable *required_params, HashTable *params, HashTable *missing_params) /* {{{ */
{
HashPosition hpos, reqhpos, paramhpos;
zval *dest_entry, param;
zend_string *key;
ulong num_key;
zend_hash_internal_pointer_reset_ex(required_params, &hpos);
zend_hash_internal_pointer_reset_ex(params, &reqhpos);
zend_hash_internal_pointer_reset_ex(missing_params, ¶mhpos);
do {
if(zend_hash_get_current_key_ex(required_params, &key, &num_key, &hpos) == HASH_KEY_IS_STRING) {
if((dest_entry = zend_hash_find(params, key)) == NULL) {
ZVAL_STRING(¶m, ZSTR_VAL(key));
zend_hash_next_index_insert(missing_params, ¶m);
}
}
} while(zend_hash_move_forward_ex(required_params, &hpos)==SUCCESS);
}
/* }}} */
static void oauth_provider_set_std_params(zval *provider_obj, HashTable *sbs_vars) /* {{{ */
{
zval *dest_entry;
if(!provider_obj || !sbs_vars) {
return;
}
OAUTH_PROVIDER_SET_STD_PARAM(sbs_vars, OAUTH_PARAM_CONSUMER_KEY, OAUTH_PROVIDER_CONSUMER_KEY);
OAUTH_PROVIDER_SET_STD_PARAM(sbs_vars, OAUTH_PARAM_TOKEN, OAUTH_PROVIDER_TOKEN);
OAUTH_PROVIDER_SET_STD_PARAM(sbs_vars, OAUTH_PARAM_SIGNATURE, OAUTH_PROVIDER_SIGNATURE);
OAUTH_PROVIDER_SET_STD_PARAM(sbs_vars, OAUTH_PARAM_NONCE, OAUTH_PROVIDER_NONCE);
OAUTH_PROVIDER_SET_STD_PARAM(sbs_vars, OAUTH_PARAM_TIMESTAMP, OAUTH_PROVIDER_TIMESTAMP);
OAUTH_PROVIDER_SET_STD_PARAM(sbs_vars, OAUTH_PARAM_VERSION, OAUTH_PROVIDER_VERSION);
OAUTH_PROVIDER_SET_STD_PARAM(sbs_vars, OAUTH_PARAM_SIGNATURE_METHOD, OAUTH_PROVIDER_SIGNATURE_METHOD);
OAUTH_PROVIDER_SET_STD_PARAM(sbs_vars, OAUTH_PARAM_CALLBACK, OAUTH_PROVIDER_CALLBACK);
OAUTH_PROVIDER_SET_STD_PARAM(sbs_vars, OAUTH_PARAM_VERIFIER, OAUTH_PROVIDER_VERIFIER);
}
/* }}} */
static inline int oauth_provider_set_param_value(HashTable *ht, char *key, zval *val) /* {{{ */
{
Z_TRY_ADDREF_P(val);
return zend_hash_str_update(ht, key, strlen(key), val) != NULL;
}
/* }}} */
static int oauth_provider_parse_auth_header(php_oauth_provider *sop, char *auth_header) /* {{{ */
{
pcre_cache_entry *pce;
zval subpats, return_value, *item_param, *current_param, *current_val;
HashPosition hpos;
zend_string *regex = zend_string_init(OAUTH_REGEX, sizeof(OAUTH_REGEX) - 1, 0);
#if PHP_VERSION_ID >= 70400
zend_string *s_auth_header = zend_string_init(auth_header, strlen(auth_header), 0);
#endif
size_t decoded_len;
if(!auth_header || strncasecmp(auth_header, "oauth", 4) || !sop) {
return FAILURE;
}
/* pass "OAuth " */
auth_header += 5;
if ((pce = pcre_get_compiled_regex_cache(regex)) == NULL) {
zend_string_release(regex);
return FAILURE;
}
zend_string_release(regex);
ZVAL_NULL(&subpats);
ZVAL_NULL(&return_value);
php_pcre_match_impl(
pce,
#if PHP_VERSION_ID >= 70400
s_auth_header,
#else
auth_header,
strlen(auth_header),
#endif
&return_value,
&subpats,
1, /* global */
1, /* use flags */
2, /* PREG_SET_ORDER */
0
);
if (0 == Z_LVAL(return_value)) {
return FAILURE;
}
zend_hash_internal_pointer_reset_ex(Z_ARRVAL(subpats), &hpos);
/* walk the oauth param names */
do {
if ((item_param = zend_hash_get_current_data_ex(Z_ARRVAL(subpats), &hpos)) != NULL) {
zval decoded_val;
char *tmp;
/*
* item = array(
* 1 => param name
* 2 => quoted value
* 3 => unquoted value (defined if matched)
* )
*/
current_param = zend_hash_index_find(Z_ARRVAL_P(item_param), 1);
if ((current_val =zend_hash_index_find(Z_ARRVAL_P(item_param), 3)) == NULL) {
current_val = zend_hash_index_find(Z_ARRVAL_P(item_param), 2);
}
tmp = estrndup(Z_STRVAL_P(current_val), Z_STRLEN_P(current_val));
decoded_len = php_url_decode(tmp, Z_STRLEN_P(current_val));
ZVAL_STRINGL(&decoded_val, tmp, decoded_len);
if (oauth_provider_set_param_value(sop->oauth_params, Z_STRVAL_P(current_param), &decoded_val)==FAILURE) {
return FAILURE;
}
Z_DELREF(decoded_val);
}
} while (SUCCESS==zend_hash_move_forward_ex(Z_ARRVAL(subpats), &hpos));
zval_ptr_dtor(&return_value);
zval_ptr_dtor(&subpats);
return SUCCESS;
}
/* }}} */
static void oauth_provider_register_cb(INTERNAL_FUNCTION_PARAMETERS, int type) /* {{{ */
{
zend_fcall_info fci;
zend_fcall_info_cache fci_cache;
php_oauth_provider *sop;
php_oauth_provider_fcall *cb;
php_oauth_provider_fcall **tgt_cb;
if(zend_parse_parameters(ZEND_NUM_ARGS(), "f", &fci, &fci_cache)==FAILURE) {
return;
}
sop = fetch_sop_object(getThis());
cb = emalloc(sizeof(php_oauth_provider_fcall));
cb->fcall_info = emalloc(sizeof(zend_fcall_info));
memcpy(cb->fcall_info, &fci, sizeof(zend_fcall_info));
cb->fcall_info_cache = fci_cache;
Z_ADDREF(cb->fcall_info->function_name);
switch(type) {
case OAUTH_PROVIDER_CONSUMER_CB:
tgt_cb = &sop->consumer_handler;
break;
case OAUTH_PROVIDER_TOKEN_CB:
tgt_cb = &sop->token_handler;
break;
case OAUTH_PROVIDER_TSNONCE_CB:
tgt_cb = &sop->tsnonce_handler;
break;
default:
php_error_docref(NULL, E_ERROR, "Invalid callback type for OAuthProvider");
return;
}
OAUTH_PROVIDER_FREE_CB((*tgt_cb));
(*tgt_cb) = cb;
}
/* }}} */
static zval *oauth_provider_call_cb(INTERNAL_FUNCTION_PARAMETERS, int type) /* {{{ */
{
php_oauth_provider *sop;
php_oauth_provider_fcall *cb = NULL;
zval args, *pthis;
char *errstr = "";
zend_string *callable = NULL;
pthis = getThis();
sop = fetch_sop_object(pthis);
switch(type) {
case OAUTH_PROVIDER_CONSUMER_CB:
cb = sop->consumer_handler;
errstr = "Consumer key/secret handler not specified, did you set a valid callback via OAuthProvider::consumerHandler()?";
break;
case OAUTH_PROVIDER_TOKEN_CB:
cb = sop->token_handler;
errstr = "Token handler not specified, did you set a valid callback via OAuthProvider::tokenHandler()?";
break;
case OAUTH_PROVIDER_TSNONCE_CB:
cb = sop->tsnonce_handler;
errstr = "Timestamp/nonce handler not specified, did you set a valid callback via OAuthProvider::timestampNonceHandler()?";
break;
default:
php_error_docref(NULL, E_ERROR, "Invalid callback type for OAuthProvider");
return NULL;
}
if(!cb) {
php_error_docref(NULL, E_ERROR, "%s", errstr);
return NULL;
}
array_init(&args);
add_next_index_zval(&args, pthis);
Z_ADDREF_P(pthis);
Z_ADDREF(args);
errstr = NULL;
if (!zend_is_callable(&cb->fcall_info->function_name, 0, &callable)) {
if (errstr) {
php_error_docref(NULL, E_WARNING, "Invalid callback: %s, %s", Z_STRVAL(cb->fcall_info->function_name), errstr);
efree(errstr);
} else {
php_error_docref(NULL, E_WARNING, "Invalid callback: %s.", Z_STRVAL(cb->fcall_info->function_name));
}
} else if (errstr) {
php_error_docref(NULL, E_WARNING, "%s", errstr);
efree(errstr);
}
if (zend_fcall_info_call(cb->fcall_info, &cb->fcall_info_cache, return_value, &args)!=SUCCESS) {
php_error_docref(NULL TSRMLS_CC, E_ERROR, "Failed calling callback %s", Z_STRVAL(cb->fcall_info->function_name));
}
zval_ptr_dtor(&args);
return return_value;
}
/* }}} */
static char *oauth_provider_get_http_verb() /* {{{ */
{
zval *tmp;
zend_is_auto_global_str("_SERVER", sizeof("_SERVER")-1);
if(Z_TYPE(PG(http_globals)[TRACK_VARS_SERVER]) != IS_UNDEF) {
if((tmp = zend_hash_str_find(HASH_OF(&PG(http_globals)[TRACK_VARS_SERVER]), "REQUEST_METHOD", sizeof("REQUEST_METHOD") - 1)) != NULL ||
(tmp = zend_hash_str_find(HASH_OF(&PG(http_globals)[TRACK_VARS_SERVER]), "HTTP_METHOD", sizeof("HTTP_METHOD") - 1)) != NULL
) {
return Z_STRVAL_P(tmp);
}
}
return NULL;
}
/* }}} */
static char *oauth_provider_get_current_uri()
{
zval *host, *port, *uri, *proto, *https;
zend_is_auto_global_str("_SERVER", sizeof("_SERVER")-1);
host = zend_hash_str_find(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), "HTTP_HOST", sizeof("HTTP_HOST") - 1);
port = zend_hash_str_find(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), "SERVER_PORT", sizeof("SERVER_PORT") - 1);
uri = zend_hash_str_find(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), "REQUEST_URI", sizeof("REQUEST_URI") - 1);
proto = zend_hash_str_find(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), "HTTP_X_FORWARDED_PROTO", sizeof("HTTP_X_FORWARDED_PROTO") - 1);
https = zend_hash_str_find(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), "HTTPS", sizeof("HTTPS") - 1);
if (host && port && uri)
{
char *tmp,*hostname,*colon_in_hostname;
spprintf(&hostname, 0, "%s", Z_STRVAL_P(host));
colon_in_hostname=strrchr(hostname,':');
if(colon_in_hostname && ((https && Z_LVAL_P(port)==443) || (!https && Z_LVAL_P(port)==80)))
{
*colon_in_hostname=0;
}
if(proto && Z_STRLEN_P(proto))
{
spprintf(&tmp, 0, "%s://%s%s", Z_STRVAL_P(proto), hostname, Z_STRVAL_P(uri));
}
else if(https && Z_STRLEN_P(https)>0 && strcasecmp(Z_STRVAL_P(https),"off")!=0)
{
spprintf(&tmp, 0, "https://%s%s", hostname, Z_STRVAL_P(uri));
}
else
{
spprintf(&tmp, 0, "http://%s%s", hostname, Z_STRVAL_P(uri));
}
efree(hostname);
return tmp;
}
return NULL;
}
/* {{{ proto void OAuthProvider::__construct()
Instantiate a new OAuthProvider object */
SOP_METHOD(__construct)
{
php_oauth_provider *sop;
zval *params = NULL, *pthis = NULL, apache_get_headers, retval, *tmpzval, *item_param;
char *authorization_header = NULL;
zend_string *key;
ulong num_key = 0, param_count = 0;
HashPosition hpos;
pthis = getThis();
sop = fetch_sop_object(pthis);
/* XXX throw E_NOTICE if filter!='unsafe_raw' */
if(zend_parse_parameters(ZEND_NUM_ARGS(), "|z", ¶ms)==FAILURE) {
soo_handle_error(NULL, OAUTH_ERR_INTERNAL_ERROR, "Failed to instantiate OAuthProvider", NULL, NULL);
return;
}
if (params && Z_TYPE_P(params)==IS_ARRAY) {
param_count = zend_hash_num_elements(Z_ARRVAL_P(params));
} else {
param_count = 0;
}
if(!strcasecmp("cli", sapi_module.name) && !param_count) {
php_error_docref(NULL, E_ERROR, "For the CLI sapi parameters must be set first via OAuthProvider::__construct(array(\"oauth_param\" => \"value\", ...))");
return;
}
/* hashes for storing parameter info/checks */
ALLOC_HASHTABLE(sop->oauth_params);
zend_hash_init(sop->oauth_params, 0, NULL, ZVAL_PTR_DTOR, 0);
ALLOC_HASHTABLE(sop->missing_params);
zend_hash_init(sop->missing_params, 0, NULL, ZVAL_PTR_DTOR, 0);
ALLOC_HASHTABLE(sop->required_params);
zend_hash_init(sop->required_params, 0, NULL, ZVAL_PTR_DTOR, 0);
ALLOC_HASHTABLE(sop->custom_params);
zend_hash_init(sop->custom_params, 0, NULL, ZVAL_PTR_DTOR, 0);
memset(sop->endpoint_paths, 0, sizeof(sop->endpoint_paths));
sop->consumer_handler = NULL;
sop->token_handler = NULL;
sop->tsnonce_handler = NULL;
sop->handle_errors = 1;
oauth_provider_set_default_required_params(sop->required_params);
zend_update_property_null(Z_OBJCE_P(pthis), pthis, OAUTH_PROVIDER_CONSUMER_KEY, sizeof(OAUTH_PROVIDER_CONSUMER_KEY)-1);
zend_update_property_null(Z_OBJCE_P(pthis), pthis, OAUTH_PROVIDER_CONSUMER_SECRET, sizeof(OAUTH_PROVIDER_CONSUMER_SECRET)-1);
zend_update_property_null(Z_OBJCE_P(pthis), pthis, OAUTH_PROVIDER_NONCE, sizeof(OAUTH_PROVIDER_NONCE)-1);
zend_update_property_null(Z_OBJCE_P(pthis), pthis, OAUTH_PROVIDER_TOKEN, sizeof(OAUTH_PROVIDER_TOKEN)-1);
zend_update_property_null(Z_OBJCE_P(pthis), pthis, OAUTH_PROVIDER_TOKEN_SECRET, sizeof(OAUTH_PROVIDER_TOKEN_SECRET)-1);
zend_update_property_null(Z_OBJCE_P(pthis), pthis, OAUTH_PROVIDER_TIMESTAMP, sizeof(OAUTH_PROVIDER_TIMESTAMP)-1);
zend_update_property_null(Z_OBJCE_P(pthis), pthis, OAUTH_PROVIDER_VERSION, sizeof(OAUTH_PROVIDER_VERSION)-1);
zend_update_property_null(Z_OBJCE_P(pthis), pthis, OAUTH_PROVIDER_SIGNATURE_METHOD, sizeof(OAUTH_PROVIDER_SIGNATURE_METHOD)-1);
zend_update_property_null(Z_OBJCE_P(pthis), pthis, OAUTH_PROVIDER_CALLBACK, sizeof(OAUTH_PROVIDER_CALLBACK)-1);
zend_update_property_bool(Z_OBJCE_P(pthis), pthis, "request_token_endpoint", sizeof("request_token_endpoint")-1, 0);
if(!param_count) {
/* TODO: support NSAPI */
/* mod_php */
if(!strncasecmp(sapi_module.name, "apache", sizeof("apache") - 1)) {
ZVAL_STRING(&apache_get_headers, "apache_request_headers");
if(zend_is_callable(&apache_get_headers, 0, NULL)) {
if(call_user_function(EG(function_table), NULL, &apache_get_headers, &retval, 0, NULL)) {
php_error_docref(NULL, E_ERROR, "Failed to get HTTP Request headers");
}
if((tmpzval = zend_hash_str_find(HASH_OF(&retval), "Authorization", sizeof("Authorization") - 1)) != NULL) {
authorization_header = estrdup(Z_STRVAL_P(tmpzval));
} else if ((tmpzval = zend_hash_str_find(HASH_OF(&retval), "authorization", sizeof("authorization") - 1)) != NULL) {
authorization_header = estrdup(Z_STRVAL_P(tmpzval));
} else {
/* search one by one */
zend_hash_internal_pointer_reset_ex(HASH_OF(&retval), &hpos);
do {
if (FAILURE != zend_hash_get_current_key_ex(HASH_OF(&retval), &key, &num_key, &hpos) && ZSTR_LEN(key) == sizeof("authorization") && 0 == strcasecmp(ZSTR_VAL(key), "authorization") && (tmpzval = zend_hash_get_current_data_ex(HASH_OF(&retval), &hpos)) != NULL) {
authorization_header = estrdup(Z_STRVAL_P(tmpzval));
break;
}
} while (SUCCESS==zend_hash_move_forward_ex(HASH_OF(&retval), &hpos));
}
} else {
php_error_docref(NULL, E_ERROR, "Failed to call apache_request_headers while running under the Apache SAPI");
}
zval_ptr_dtor(&apache_get_headers);
zval_ptr_dtor(&retval);
} else { /* not mod_php, look in _SERVER and _ENV for Authorization header */
if(!zend_is_auto_global_str("_SERVER", sizeof("_SERVER") - 1) && !zend_is_auto_global_str("_ENV", sizeof("_ENV") - 1)) {
return;
}
/* first look in _SERVER */
if (Z_TYPE(PG(http_globals)[TRACK_VARS_SERVER]) == IS_UNDEF ||
((tmpzval = zend_hash_str_find(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), "HTTP_AUTHORIZATION", sizeof("HTTP_AUTHORIZATION") - 1)) == NULL
&& (tmpzval = zend_hash_str_find(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), "REDIRECT_HTTP_AUTHORIZATION", sizeof("REDIRECT_HTTP_AUTHORIZATION") -1)) == NULL))
{
/* well that didn't work out, so let's check out _ENV */
if (Z_TYPE(PG(http_globals)[TRACK_VARS_ENV]) == IS_UNDEF
|| (tmpzval = zend_hash_str_find(Z_ARRVAL(PG(http_globals)[TRACK_VARS_ENV]), "HTTP_AUTHORIZATION", sizeof("HTTP_AUTHORIZATION"))) == NULL) {
/* not found, [bf]ail */
return;
}
}
authorization_header = estrdup(Z_STRVAL_P(tmpzval));
}
if (authorization_header) {
int ret = oauth_provider_parse_auth_header(sop, authorization_header);
efree(authorization_header);
if (FAILURE==ret) {
soo_handle_error(NULL, OAUTH_SIGNATURE_METHOD_REJECTED, "Unknown signature method", NULL, NULL);
return;
}
}
}
/* let constructor params override any values that may have been found in auth headers */
if (param_count) {
zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(params), &hpos);
do {
if(zend_hash_get_current_key_ex(Z_ARRVAL_P(params), &key, &num_key, &hpos) == HASH_KEY_IS_STRING) {
if((item_param = zend_hash_get_current_data_ex(Z_ARRVAL_P(params), &hpos)) != NULL) {
if(oauth_provider_set_param_value(sop->oauth_params, ZSTR_VAL(key), item_param) == FAILURE) {
return;
}
}
}
} while(zend_hash_move_forward_ex(Z_ARRVAL_P(params), &hpos)==SUCCESS);
}
}
/* }}} */
/* {{{ proto void OAuthProvider::callConsumerHandler()
calls the registered consumer key handler function */
SOP_METHOD(callconsumerHandler)
{
OAUTH_PROVIDER_CALL_CB(INTERNAL_FUNCTION_PARAM_PASSTHRU, OAUTH_PROVIDER_CONSUMER_CB);
}
/* }}} */
/* {{{ proto void OAuthProvider::callTokenHandler()
calls the registered token handler function */
SOP_METHOD(calltokenHandler)
{
OAUTH_PROVIDER_CALL_CB(INTERNAL_FUNCTION_PARAM_PASSTHRU, OAUTH_PROVIDER_TOKEN_CB);
}
/* }}} */
/* {{{ proto void OAuthProvider::callTokenHandler()
calls the registered token handler function */
SOP_METHOD(callTimestampNonceHandler)
{
OAUTH_PROVIDER_CALL_CB(INTERNAL_FUNCTION_PARAM_PASSTHRU, OAUTH_PROVIDER_TSNONCE_CB);
}
/* }}} */
/* {{{ proto void OAuthProvider::consumerHandler(callback cb) */
SOP_METHOD(consumerHandler)
{
oauth_provider_register_cb(INTERNAL_FUNCTION_PARAM_PASSTHRU, OAUTH_PROVIDER_CONSUMER_CB);
}
/* }}} */
/* {{{ proto void OAuthProvider::tokenHandler(callback cb) */
SOP_METHOD(tokenHandler)
{
oauth_provider_register_cb(INTERNAL_FUNCTION_PARAM_PASSTHRU, OAUTH_PROVIDER_TOKEN_CB);
}
/* }}} */
/* {{{ proto void OAuthProvider::timestampNonceHandler(callback cb) */
SOP_METHOD(timestampNonceHandler)
{
oauth_provider_register_cb(INTERNAL_FUNCTION_PARAM_PASSTHRU, OAUTH_PROVIDER_TSNONCE_CB);
}
/* }}} */
/* {{{ proto void OAuthProvider::isRequestTokenEndpoint(bool will_issue_request_token) */
SOP_METHOD(isRequestTokenEndpoint)
{
zend_bool req_api = 0;
zval *pthis;
if(zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Ob", &pthis, oauthprovider, &req_api)==FAILURE) {
return;
}
zend_update_property_bool(Z_OBJCE_P(pthis), pthis, "request_token_endpoint", sizeof("request_token_endpoint") - 1, req_api);
}
/* }}} */
SOP_METHOD(setRequestTokenPath)
{
zval *pthis;
php_oauth_provider *sop;
char *path;
size_t path_len;
if (FAILURE==zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Os", &pthis, oauthprovider, &path, &path_len)) {
return;
}
sop = fetch_sop_object(pthis);
OAUTH_PROVIDER_SET_ENDPOINT(sop->endpoint_paths[OAUTH_PROVIDER_PATH_REQUEST], path)
RETURN_TRUE;
}
/* {{{ proto void OAuthProvider::checkOAuthRequest([string url [, string request_method]]) */
SOP_METHOD(checkOAuthRequest)
{
zval *retval = NULL, *param, *pthis, *token_secret = NULL, *consumer_secret, *req_signature, *sig_method = NULL, rv;
oauth_sig_context *sig_ctx = NULL;
php_oauth_provider *sop;
ulong missing_param_count = 0, mp_count = 1;
char additional_info[512] = "", *http_verb = NULL, *uri = NULL, *current_uri = NULL;
zend_string *sbs, *signature = NULL;
HashPosition hpos;
HashTable *sbs_vars = NULL;
size_t http_verb_len = 0, uri_len = 0;
int is_token_required = 0;
if(zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O|ss", &pthis, oauthprovider, &uri, &uri_len, &http_verb, &http_verb_len)==FAILURE) {
return;
}
sop = fetch_sop_object(pthis);
if(!http_verb_len) {
http_verb = oauth_provider_get_http_verb();
}
if(!http_verb) {
php_error_docref(NULL, E_ERROR, "Failed to detect HTTP method, set a HTTP method via OAuthProvider::checkOAuthRequest()");
return;
}
ALLOC_HASHTABLE(sbs_vars);
zend_hash_init(sbs_vars, 0, NULL, ZVAL_PTR_DTOR, 0);
if(Z_TYPE(PG(http_globals)[TRACK_VARS_GET]) != IS_UNDEF) {
zend_hash_merge(sbs_vars, HASH_OF(&PG(http_globals)[TRACK_VARS_GET]), (copy_ctor_func_t)zval_add_ref, 0);
}
if(Z_TYPE(PG(http_globals)[TRACK_VARS_POST]) != IS_UNDEF) {
zend_hash_merge(sbs_vars, HASH_OF(&PG(http_globals)[TRACK_VARS_POST]), (copy_ctor_func_t)zval_add_ref, 0);
}
if(zend_hash_num_elements(sop->oauth_params)) {
zend_hash_merge(sbs_vars, sop->oauth_params, (copy_ctor_func_t)zval_add_ref, 0);
}
if (zend_hash_num_elements(sop->custom_params)) {
/* apply custom params */
oauth_provider_apply_custom_param(sbs_vars, sop->custom_params);
}
zend_hash_internal_pointer_reset_ex(sbs_vars, &hpos);
/* set the standard stuff present in every request if its found in sbs_vars, IE if we find oauth_consumer_key, set $oauth->consumer_key */
oauth_provider_set_std_params(pthis, sbs_vars);
if (!uri) {
/* get current uri */
uri = current_uri = oauth_provider_get_current_uri();
}
/* if we are in an API which issues a request token, there are is no token handler called */
if (!(is_token_required=oauth_provider_token_required(pthis, uri))) {
/* by default, oauth_token is required; remove from the required list */
oauth_provider_remove_required_param(sop->required_params, "oauth_token");
}
oauth_provider_check_required_params(sop->required_params, sbs_vars, sop->missing_params);
missing_param_count = zend_hash_num_elements(sop->missing_params);
if(missing_param_count) {
zend_hash_internal_pointer_reset_ex(sop->missing_params, &hpos);
do {
if((param = zend_hash_get_current_data_ex(sop->missing_params, &hpos)) != NULL) {
snprintf(additional_info, 512, "%s%s%s", additional_info, Z_STRVAL_P(param), (missing_param_count > 1 && missing_param_count!=mp_count++) ? "%26" : "");
}
} while(zend_hash_move_forward_ex(sop->missing_params, &hpos)==SUCCESS);
soo_handle_error(NULL, OAUTH_PARAMETER_ABSENT, "Missing required parameters", NULL, additional_info);
FREE_ARGS_HASH(sbs_vars);
OAUTH_PROVIDER_FREE_STRING(current_uri);
return;
}
sig_method = zend_read_property(Z_OBJCE_P(pthis), pthis, OAUTH_PROVIDER_SIGNATURE_METHOD, sizeof(OAUTH_PROVIDER_SIGNATURE_METHOD) - 1, 1, &rv);
do {
if (sig_method && (Z_TYPE_P(sig_method) == IS_STRING) && Z_STRLEN_P(sig_method)) {
sig_ctx = oauth_create_sig_context(Z_STRVAL_P(sig_method));
if (OAUTH_SIGCTX_TYPE_NONE!=sig_ctx->type) {
break;
}
OAUTH_SIGCTX_FREE(sig_ctx);
}
soo_handle_error(NULL, OAUTH_SIGNATURE_METHOD_REJECTED, "Unknown signature method", NULL, NULL);
FREE_ARGS_HASH(sbs_vars);
OAUTH_PROVIDER_FREE_STRING(current_uri);
return;
} while (0);
do {
long cb_res;
retval = oauth_provider_call_cb(INTERNAL_FUNCTION_PARAM_PASSTHRU, OAUTH_PROVIDER_CONSUMER_CB);
if (retval) {
convert_to_long(retval);
cb_res = Z_LVAL_P(retval);
zval_ptr_dtor(retval);
if (OAUTH_OK!=cb_res) {
soo_handle_error(NULL, cb_res, "Invalid consumer key", NULL, additional_info);
break;
}
} else if (EG(exception)) {
/* pass exceptions */
break;
}
if (is_token_required) {
retval = oauth_provider_call_cb(INTERNAL_FUNCTION_PARAM_PASSTHRU, OAUTH_PROVIDER_TOKEN_CB);
if (retval) {
convert_to_long(retval);
cb_res = Z_LVAL_P(retval);
zval_ptr_dtor(retval);
if (OAUTH_OK!=cb_res) {
soo_handle_error(NULL, cb_res, "Invalid token", NULL, additional_info);
break;
}
} else if (EG(exception)) {
/* pass exceptions */
break;
}
}
retval = oauth_provider_call_cb(INTERNAL_FUNCTION_PARAM_PASSTHRU, OAUTH_PROVIDER_TSNONCE_CB);
if (retval) {
convert_to_long(retval);
cb_res = Z_LVAL_P(retval);
zval_ptr_dtor(retval);
if (OAUTH_OK!=cb_res) {
soo_handle_error(NULL, cb_res, "Invalid nonce/timestamp combination", NULL, additional_info);
break;
}
} else if (EG(exception)) {
/* pass exceptions */
break;
}
/* now for the signature stuff */
sbs = oauth_generate_sig_base(NULL, http_verb, uri, sbs_vars, NULL);
if (sbs) {
consumer_secret = zend_read_property(Z_OBJCE_P(pthis), pthis, OAUTH_PROVIDER_CONSUMER_SECRET, sizeof(OAUTH_PROVIDER_CONSUMER_SECRET) - 1, 1, &rv);
convert_to_string_ex(consumer_secret);
if (is_token_required) {
token_secret = zend_read_property(Z_OBJCE_P(pthis), pthis, OAUTH_PROVIDER_TOKEN_SECRET, sizeof(OAUTH_PROVIDER_TOKEN_SECRET) - 1, 1, &rv);
convert_to_string_ex(token_secret);
}
signature = soo_sign(NULL, ZSTR_VAL(sbs), consumer_secret, token_secret, sig_ctx);
}
req_signature = zend_read_property(Z_OBJCE_P(pthis), pthis, OAUTH_PROVIDER_SIGNATURE, sizeof(OAUTH_PROVIDER_SIGNATURE) - 1, 1, &rv);
if (!signature || !Z_STRLEN_P(req_signature) || strcmp(ZSTR_VAL(signature), Z_STRVAL_P(req_signature))) {
soo_handle_error(NULL, OAUTH_INVALID_SIGNATURE, "Signatures do not match", NULL, sbs ? ZSTR_VAL(sbs) : NULL);
}
if (sbs) {
zend_string_release(sbs);
}
if (signature) {
zend_string_release(signature);
}
} while (0);
OAUTH_SIGCTX_FREE(sig_ctx);
OAUTH_PROVIDER_FREE_STRING(current_uri);
FREE_ARGS_HASH(sbs_vars);
}
/* }}} */
/* {{{ proto void OAuthProvider::addRequiredParameter(string $required_param) */
SOP_METHOD(addRequiredParameter)
{
zval *pthis;
char *required_param;
php_oauth_provider *sop;
size_t req_param_len;
if(zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Os", &pthis, oauthprovider, &required_param, &req_param_len)==FAILURE) {
return;
}
sop = fetch_sop_object(pthis);
if(oauth_provider_add_required_param(sop->required_params, required_param)==SUCCESS) {
RETURN_TRUE;
}
RETURN_FALSE;
}
/* }}} */
/* {{{ proto void OAuthProvider::setParam(string $key, mixed $val) */
SOP_METHOD(setParam)
{
zval *pthis, *param_val = NULL;
char *param_key;
size_t param_key_len;
php_oauth_provider *sop;
if (FAILURE==zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Os|z/", &pthis, oauthprovider, ¶m_key, ¶m_key_len, ¶m_val)) {
return;
}
sop = fetch_sop_object(pthis);
if (!param_val) {
RETURN_BOOL(SUCCESS == zend_hash_str_del(sop->custom_params, param_key, param_key_len));
} else {
Z_TRY_ADDREF_P(param_val);
RETURN_BOOL(NULL != zend_hash_str_add(sop->custom_params, param_key, param_key_len, param_val));
}
}
/* }}} */
/* {{{ proto void OAuthProvider::removeRequiredParameter(string $required_param) */
SOP_METHOD(removeRequiredParameter)
{
zval *pthis;
char *required_param;
php_oauth_provider *sop;
size_t req_param_len;
if(zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Os", &pthis, oauthprovider, &required_param, &req_param_len)==FAILURE) {
return;
}
sop = fetch_sop_object(pthis);
if(oauth_provider_remove_required_param(sop->required_params, required_param)==SUCCESS) {
RETURN_TRUE;
}
RETURN_FALSE;
}
/* }}} */
/* {{{ proto string OAuthProvider::generateToken(int $size[, bool $string = false]) */
SOP_METHOD(generateToken)
{
long size, reaped = 0;
int strong = 0;
char *iv = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l|b", &size, &strong)==FAILURE) {
return;
}
if (size < 1 || size > INT_MAX) {
php_error_docref(NULL, E_WARNING, "Cannot generate token with a size of less than 1 or greater than %d", INT_MAX);
return;
}
iv = ecalloc(size+1, 1);
do {
#if PHP_WIN32
/*
* The Windows port has been ripped from the mcrypt extension; thanks guys! ;-)
*/
HCRYPTPROV hCryptProv;
BYTE *iv_b = (BYTE *) iv;
if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
break;
}
if (!CryptGenRandom(hCryptProv, size, iv_b)) {
break;
}
reaped = size;
#else
int fd;
fd = open(strong?"/dev/random":"/dev/urandom", O_RDONLY);
if (fd < 0) {
break;
}
while (reaped < size) {
register int n;
n = read(fd, iv + reaped, size - reaped);
if (n < 0) {
break;
}
reaped += n;
}
close(fd);
#endif
} while (0);
if (reaped < size) {
if (strong) {
php_error_docref(NULL, E_WARNING, "Could not gather enough random data, falling back on rand()");
}
while (reaped < size) {
iv[reaped++] = (char) (255.0 * php_rand() / RAND_MAX);
}
}
RETURN_STRINGL(iv, size);
}
/* }}} */
/* {{{ proto void OAuthProvider::reportProblem(Exception $e) */
SOP_METHOD(reportProblem)
{
zval *exception, *code, *sbs, *missing_params, rv;
zend_class_entry *ex_ce;
zend_bool out_malloced = 0;
char *out, *tmp_out, *http_header_line;
size_t pr_len;
ulong lcode;
uint http_code;
sapi_header_line ctr = {0};
zend_bool send_headers = 1;
ex_ce = zend_exception_get_default();
if(zend_parse_parameters(ZEND_NUM_ARGS(), "O|b", &exception, ex_ce, &send_headers)==FAILURE) {
return;
}
/* XXX good candidate for refactoring */
code = zend_read_property(Z_OBJCE_P(exception), exception, "code", sizeof("code") - 1, 1, &rv);
lcode = Z_LVAL_P(code);
switch(lcode) {
case OAUTH_BAD_TIMESTAMP:
http_code = OAUTH_ERR_BAD_AUTH;
out = "oauth_problem=timestamp_refused"; break;
case OAUTH_BAD_NONCE:
http_code = OAUTH_ERR_BAD_AUTH;
out = "oauth_problem=nonce_used"; break;
case OAUTH_CONSUMER_KEY_UNKNOWN:
http_code = OAUTH_ERR_BAD_AUTH;