[epiphany/gnome-3-36] Encode PDF data (backport for 3.36)

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 5e832fff73283e5f6e6733b330b6c99e895ccd8e
Author: Michael Catanzaro <mcatanzaro redhat com>
Date:   Thu Dec 16 09:20:25 2021 -0600

    Encode PDF data (backport for 3.36)

 embed/ephy-embed.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
---
diff --git a/embed/ephy-embed.c b/embed/ephy-embed.c
index 208730764..a4928b5dc 100644
--- a/embed/ephy-embed.c
+++ b/embed/ephy-embed.c
@@ -31,6 +31,7 @@
 #include "ephy-embed-utils.h"
 #include "ephy-find-toolbar.h"
 #include "ephy-notification-container.h"
+#include "ephy-output-encoding.h"
 #include "ephy-prefs.h"
 #include "ephy-settings.h"
 #include "ephy-string.h"
@@ -1056,6 +1057,8 @@ pdf_file_loaded (GObject      *source,
   g_autofree gchar *b64 = NULL;
   g_autofree gchar *requested_uri = NULL;
   g_autofree char *file_data = NULL;
+  g_autofree char *basename = NULL;
+  g_autofree char *encoded_filename = NULL;
   gsize len = 0;
 
   if (!g_file_load_contents_finish (G_FILE (source), res, &file_data, &len, NULL, &error)) {
@@ -1070,7 +1073,9 @@ pdf_file_loaded (GObject      *source,
   g_file_delete_async (G_FILE (source), G_PRIORITY_DEFAULT, NULL, pdf_file_deleted, NULL);
 
   html = g_string_new ("");
-  g_string_printf (html, g_bytes_get_data (html_file, NULL), b64, g_path_get_basename (data->remote_uri));
+  basename = g_path_get_basename (data->remote_uri);
+  encoded_filename = ephy_encode_for_html_attribute (basename);
+  g_string_printf (html, g_bytes_get_data (html_file, NULL), b64, encoded_filename);
 
   webkit_web_view_load_alternate_html (web_view, html->str, data->remote_uri, 
"ephy-resource:///org/gnome/epiphany/pdfjs/web/");