Allow registering callback for parsing HTTP headers

Slightly changed version of Espen Jürgensen's
commit 548141e72312126fa6121f6a5f436đ251c7fb1251 for forked-daapd.

2 files changed, 17 insertions, 0 deletions

diff --git a/include/event2/http.h b/include/event2/http.h
index 466a5a86..068120c7 100644
--- a/include/event2/http.h
+++ b/include/event2/http.h
@@ -505,6 +505,15 @@ void evhttp_request_set_chunked_cb(struct evhttp_request *,
     void (*cb)(struct evhttp_request *, void *));
 
 /**
+ * Register callback for additional parsing of request headers.
+ * @param cb will be called after receiving and parsing the full header.
+ * It allows analyzing the header and possibly closing the connection
+ * by returning a value < 0.
+ */
+void evhttp_request_set_header_cb(struct evhttp_request *,
+    int (*cb)(struct evhttp_request *, void *));
+
+/**
  * The different error types supported by evhttp
  *
  * @see evhttp_request_set_error_cb()
diff --git a/include/event2/http_struct.h b/include/event2/http_struct.h
index 25e19bd9..4ca196ee 100644
--- a/include/event2/http_struct.h
+++ b/include/event2/http_struct.h
@@ -120,6 +120,14 @@ struct {
 	 * the regular callback.
 	 */
 	void (*chunk_cb)(struct evhttp_request *, void *);
+
+	/*
+	 * Callback added for forked-daapd so they can collect ICY
+	 * (shoutcast) metadata from the http header. If return
+	 * int is negative the connection will be closed.
+	 */
+	int (*header_cb)(struct evhttp_request *, void *);
+
 	/*
 	 * Error callback - called when error is occured.
 	 * @see evhttp_request_error for error types.