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/**
* @brief example code for liboauth using http://term.ie/oauth/example
* @file oauthexample.c
* @author Robin Gareus <robin@gareus.org>
*
* Copyright 2008 Robin Gareus <robin@gareus.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <oauth.h>
/**
* split and parse URL parameters replied by the test-server
* into <em>oauth_token</em> and <em>oauth_token_secret</em>.
*/
int parse_reply(const char *reply, char **token, char **secret) {
int rc;
int ok=1;
char **rv = NULL;
rc = oauth_split_url_parameters(reply, &rv);
qsort(rv, rc, sizeof(char *), oauth_cmpstringp);
if( rc==2
&& !strncmp(rv[0],"oauth_token=",11)
&& !strncmp(rv[1],"oauth_token_secret=",18) ) {
ok=0;
if (token) *token =strdup(&(rv[0][12]));
if (secret) *secret=strdup(&(rv[1][19]));
printf("key: '%s'\nsecret: '%s'\n",*token, *secret); // XXX token&secret may be NULL.
}
if(rv) free(rv);
return ok;
}
/**
* an example requesting a request-token from an OAuth service-provider
* exchaning it with an access token
* and make an example request.
* exercising either the oauth-HTTP GET or POST function.
*/
int oauth_consumer_example(int use_post) {
const char *request_token_uri = "http://term.ie/oauth/example/request_token.php";
const char *access_token_uri = "http://term.ie/oauth/example/access_token.php";
const char *test_call_uri = "http://term.ie/oauth/example/echo_api.php?method=foo%20bar&bar=baz";
const char *c_key = "key"; //< consumer key
const char *c_secret = "secret"; //< consumer secret
char *t_key = NULL; //< access token key
char *t_secret = NULL; //< access token secret
char *req_url = NULL;
char *postarg = NULL;
char *reply = NULL;
printf("Request token..\n");
if (use_post) { // HTTP POST
req_url = oauth_sign_url2(request_token_uri, &postarg, OA_HMAC, NULL, c_key, c_secret, NULL, NULL);
reply = oauth_http_post(req_url,postarg);
} else { // HTTP GET
req_url = oauth_sign_url2(request_token_uri, NULL, OA_HMAC, NULL, c_key, c_secret, NULL, NULL);
reply = oauth_http_get(req_url,postarg);
}
if (req_url) free(req_url);
if (postarg) free(postarg);
if (!reply) return(1);
if (parse_reply(reply, &t_key, &t_secret)) return(2);
free(reply);
// The Request Token provided above is already authorized, for this test server
// so we may use it to request an Access Token right away.
printf("Access token..\n");
if (use_post) {
req_url = oauth_sign_url2(access_token_uri, &postarg, OA_HMAC, NULL, c_key, c_secret, t_key, t_secret);
reply = oauth_http_post(req_url,postarg);
} else {
req_url = oauth_sign_url2(access_token_uri, NULL, OA_HMAC, NULL, c_key, c_secret, t_key, t_secret);
reply = oauth_http_get(req_url,postarg);
}
if (req_url) free(req_url);
if (postarg) free(postarg);
if (!reply) return(3);
if(t_key) free(t_key);
if(t_secret) free(t_secret);
if (parse_reply(reply, &t_key, &t_secret)) return(4);
free(reply);
printf("make some request..\n");
if (use_post) {
req_url = oauth_sign_url2(test_call_uri, &postarg, OA_HMAC, NULL, c_key, c_secret, t_key, t_secret);
reply = oauth_http_post(req_url,postarg);
} else {
req_url = oauth_sign_url2(test_call_uri, NULL, OA_HMAC, NULL, c_key, c_secret, t_key, t_secret);
reply = oauth_http_get(req_url,postarg);
}
printf("query:'%s'\n",req_url);
printf("reply:'%s'\n",reply);
if(req_url) free(req_url);
if(postarg) free(postarg);
if (strcmp(reply,"bar=baz&method=foo+bar")) return (5);
if(reply) free(reply);
if(t_key) free(t_key);
if(t_secret) free(t_secret);
return(0);
}
/**
* Main Test and Example Code.
*
* compile:
* gcc -lssl -loauth -o oauthexample oauthexample.c
*/
int main (int argc, char **argv) {
switch(oauth_consumer_example(0)) {
case 1:
printf("HTTP request for an oauth request-token failed.\n");
break;
case 2:
printf("did not receive a request-token.\n");
break;
case 3:
printf("HTTP request for an oauth access-token failed.\n");
break;
case 4:
printf("did not receive an access-token.\n");
break;
case 5:
printf("test call 'echo-api' did not respond correctly.\n");
break;
default:
printf("request ok.\n");
break;
}
return(0);
}
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