* More work on OpenID 1.1 Relying Party support

[citadel.git] / citadel / modules / openid / serv_openid_rp.c

diff --git a/citadel/modules/openid/serv_openid_rp.c b/citadel/modules/openid/serv_openid_rp.c
index 05dbbd6822bbb77178a176002e7178ccc07d938e..fc691246f5a014ebefbdf2ef617da28d085fd30d 100644 (file)
--- a/citadel/modules/openid/serv_openid_rp.c
+++ b/citadel/modules/openid/serv_openid_rp.c
@@ -33,6 +33,16 @@
 #include "ctdl_module.h"
 
 
+struct associate_handle {
+       char claimed_id[256];
+       char assoc_type[32];
+       time_t expires_in;
+       char assoc_handle[128];
+       char mac_key[128];
+};
+
+
+
 /* 
  * Locate a <link> tag and, given its 'rel=' parameter, return its 'href' parameter
  */
@@ -178,6 +188,36 @@ int fetch_http(char *url, char *target_buf, int maxbytes)
 }
 
 
+#define ASSOCIATE_RESPONSE_SIZE        4096
+
+/*
+ * libcurl callback function for prepare_openid_associate_request()
+ */
+size_t associate_callback(void *ptr, size_t size, size_t nmemb, void *stream)
+{
+       char *response = (char *) stream;
+       int got_bytes = (size * nmemb);
+       int len = strlen(response);
+
+       if ((len + got_bytes + 1) < ASSOCIATE_RESPONSE_SIZE) {
+               memcpy(&response[len], ptr, got_bytes);
+               response[len+got_bytes] = 0;
+       }
+
+       return got_bytes;
+}
+
+
+/*
+ * Process the response from an "associate" request
+ */
+void process_associate_response(associate_response)
+{
+       // FIXME finish this
+}
+
+
+
 /*
  * Establish a shared secret with an OpenID Identity Provider by sending
  * an "associate" request.
@@ -188,6 +228,9 @@ void prepare_openid_associate_request(char *openid_server, char *openid_delegate
        CURLcode res;
        struct curl_httppost *formpost=NULL;
        struct curl_httppost *lastptr=NULL;
+       char associate_response[ASSOCIATE_RESPONSE_SIZE];
+
+       memset(associate_response, 0, ASSOCIATE_RESPONSE_SIZE);
 
        curl_formadd(&formpost,
                        &lastptr,
@@ -208,16 +251,13 @@ void prepare_openid_associate_request(char *openid_server, char *openid_delegate
                curl_easy_setopt(curl, CURLOPT_URL, openid_server);
                curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
                curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
-               //curl_easy_setopt(curl, CURLOPT_WRITEDATA, &fh);
-               //curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fh_callback);
-               //curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errmsg);
+               curl_easy_setopt(curl, CURLOPT_WRITEDATA, associate_response);
+               curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, associate_callback);
                curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
                        
                curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
                res = curl_easy_perform(curl);
-
-               // FIXME not finished
-
+               process_associate_response(associate_response);
                curl_easy_cleanup(curl);
        }
        curl_formfree(formpost);