Added support for caching and expiration times.

MessInWind · Jul 1, 2019 · 3d3dbf2 · 3d3dbf2
1 parent c7b61ac
commit 3d3dbf2
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Showing 2 changed files with 26 additions and 0 deletions.
diff --git a/network/web/server/PageGenerator.h b/network/web/server/PageGenerator.h
@@ -80,6 +80,15 @@ class PageGenerator {
         virtual char *getMimeType( char *inGetRequestPath ) = 0;
 
 
+        /**
+         * Gets max age in seconds that a given path should be cached
+         * by the browser
+         * Defaults to 0 (no caching).
+         */
+        virtual int getCacheMaxAge( char *inGetRequestPath ) {
+            return 0;
+            }
+
 
     };
 

diff --git a/network/web/server/RequestHandlingThread.cpp b/network/web/server/RequestHandlingThread.cpp
@@ -266,6 +266,23 @@ void RequestHandlingThread::run() {
             sockStream->writeString(
                 "HTTP/1.0 200 OK\r\n" );
 
+
+            int cacheSeconds = mGenerator->getCacheMaxAge( filePathBuffer );
+
+            if( cacheSeconds == 0 ) {
+                sockStream->writeString( "cache-control: no-cache\r\n" );
+                }
+            else {
+                char *cacheString = autoSprintf( 
+                    "cache-control: private, max-age=%d\r\n",
+                    cacheSeconds );
+
+                sockStream->writeString( cacheString );
+
+                delete [] cacheString;
+                }
+
+
             char *mimeType = mGenerator->getMimeType( filePathBuffer );
 
             sockStream->writeString( "Content-Type: " );