Changeset 140

Timestamp:

02/15/06 21:12:41 (3 years ago)

Author:

conrad

Message:

add a Last-Modified header to all CGI requests

Files:

• fastphoto/trunk/src/cgi.c (modified) (1 diff)
• fastphoto/trunk/src/header.c (modified) (1 diff)
• fastphoto/trunk/src/header.h (modified) (1 diff)

fastphoto/trunk/src/cgi.c

@@ -123 +123 @@
-cgi_send (fastphoto_t * params)
-{
+  header_last_modified (params->in.mtime);
+
-  if (params->unmodified) {
-    cgi_send_photo (&params->in);

fastphoto/trunk/src/header.c

@@ -4 +4 @@
-#include <stdlib.h>
-#include <string.h>
+#include <time.h>
-
-#define CONTENT_TYPE_JPEG "Content-Type: image/jpeg\n"
+
+static char * wdays[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
+static char * months[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
+                          "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+
+static int
+http_date_snprint (char * buf, int n, time_t mtime)
+{
+  struct tm * g;
+
+  g = gmtime (&mtime);
+
+  return snprintf (buf, n, "%s, %02d %s %4d %2d:%02d:%02d GMT",
+                   wdays[g->tm_wday], g->tm_mday, months[g->tm_mon],
+                   g->tm_year + 1900, g->tm_hour, g->tm_min, g->tm_sec);
+}
+
+int
+header_last_modified (time_t mtime)
+{
+  char buf[30];
+
+  http_date_snprint (buf, 30, mtime);
+  return printf ("Last-Modified: %s\n", buf);
+}
-
-int

fastphoto/trunk/src/header.h

@@ -4 +4 @@
-int header_content_type_jpeg (void);
-int header_content_length (int len);
+int header_last_modified (time_t mtime);
-int header_end (void);
-