add implement get metadata

diff --git a/src/kds_s2000w_client.c b/src/kds_s2000w_client.c
index e4810ea21f7cced17627032acc9d81c324e4a487..ae382e1484de2c577999a9d0cf89f8714fbc07c3 100644 (file)
--- a/src/kds_s2000w_client.c
+++ b/src/kds_s2000w_client.c
@@ -190,7 +190,36 @@ int kds_s2000w_client_stop_scan(int64_t sessionid, response* response)
 
 int kds_s2000w_client_get_metadata(int64_t sessionid, int img_number, response* response)
 {
-       return 0;
+       CURL *curl = curl_easy_init();
+       if(!curl)
+               return CURLE_FAILED_INIT;
+
+       CURLU* url_handler = curl_url();
+       char img_number_str[10];
+       sprintf(img_number_str, "%i", img_number);
+       curl_url_set(url_handler, CURLUPART_URL, "http://scanner.lan.hhaalo.de/api/session/metadata", 0);
+       curl_url_set(url_handler, CURLUPART_PATH, img_number_str, 0);
+       char* url = NULL;
+       curl_url_get(url_handler, CURLUPART_URL, &url, 0);
+
+       struct curl_slist* headers = NULL;
+       char header_str[80];
+       sprintf(header_str, "SessionId: %li", sessionid);
+       headers = curl_slist_append(headers, header_str);
+       curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
+       curl_easy_setopt(curl, CURLOPT_URL, url);
+       curl_easy_setopt(curl, CURLOPT_HTTPGET, 1L);
+       curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, _kds_s2000w_client_callback);
+       curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*) response);
+       CURLcode result = curl_easy_perform(curl);
+       curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response->code);
+
+       curl_url_cleanup(url_handler);
+       url_handler = NULL;
+       curl_free(url);
+       url = NULL;
+
+       return result;
 }
 
 int kds_s2000w_client_get_image(int64_t sessionid, int img_number, response* response)