From 2572c2a5cc894ec84d70f6f4596a04036aa03064 Mon Sep 17 00:00:00 2001
From: Sebastian Ramacher <s.ramacher@gmx.at>
Date: Fri, 21 Oct 2011 15:00:57 +0200
Subject: [PATCH] Guess the content from the actual data if it fails to do so
 from the file name alone.

---
 document.c | 25 +++++++++++++++++++++++--
 zathura.h  |  5 +++++
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/document.c b/document.c
index 075bc16..71fd919 100644
--- a/document.c
+++ b/document.c
@@ -162,16 +162,37 @@ zathura_document_open(zathura_t* zathura, const char* path, const char* password
   }
 
   if (file_exists(path) == false) {
-    girara_error("File does not exist");
+    girara_error("File '%s' does not exist", path);
     return NULL;
   }
 
-  const gchar* content_type = g_content_type_guess(path, NULL, 0, NULL);
+  gboolean uncertain;
+  const gchar* content_type = g_content_type_guess(path, NULL, 0, &uncertain);
   if (content_type == NULL) {
     girara_error("Could not determine file type");
     return NULL;
   }
 
+  if (uncertain == TRUE) {
+    g_free((void*)content_type);
+    content_type = NULL;
+
+    gchar* contents = NULL;
+    gsize length = 0;
+    if (g_file_get_contents(path, &contents, &length, NULL) == FALSE) {
+      girara_error("Could not determine file type");
+      return NULL;
+    }
+
+    content_type = g_content_type_guess(NULL, (guchar*) contents, length, &uncertain);
+    g_free(contents);
+    if (content_type == NULL || uncertain == TRUE) {
+      g_free((void*)content_type);
+      girara_error("Could not determine file type");
+      return NULL;
+    }
+  }
+
   /* determine real path */
   long path_max;
 #ifdef PATH_MAX
diff --git a/zathura.h b/zathura.h
index 732764c..df3d963 100644
--- a/zathura.h
+++ b/zathura.h
@@ -104,6 +104,11 @@ typedef struct zathura_s
     girara_list_t* bookmarks; /**> bookmarks */
   } bookmarks;
 
+  struct
+  {
+    gchar* file;
+  } stdin_support;
+
   zathura_document_t* document; /**> The current document */
   zathura_database_t* database; /**> The database */
 } zathura_t;