[evolution] Bug 769388 - Add option to not display Content-Disposition:inline parts

[Milan Crha <mcrha src gnome org>]

commit a48c080b2001a7f547b1e47334b11e7bc97235d1
Author: Leonard den Ottolander <bugzilla ottolander nl>
Date:   Wed Aug 3 14:43:50 2016 +0200

    Bug 769388 - Add option to not display Content-Disposition:inline parts

 data/org.gnome.evolution.mail.gschema.xml.in |    5 +++++
 em-format/e-mail-part-utils.c                |   10 +++++++++-
 em-format/e-mail-part.c                      |    9 +++++++--
 3 files changed, 21 insertions(+), 3 deletions(-)
---
diff --git a/data/org.gnome.evolution.mail.gschema.xml.in b/data/org.gnome.evolution.mail.gschema.xml.in
index 24d18e0..4c91054 100644
--- a/data/org.gnome.evolution.mail.gschema.xml.in
+++ b/data/org.gnome.evolution.mail.gschema.xml.in
@@ -200,6 +200,11 @@
       <_summary>Wrap quoted text in replies</_summary>
       <_description>If set to 'true' quoted text in replies will be wrapped.</_description>
     </key>
+    <key name="display-content-disposition-inline" type="b">
+      <default>true</default>
+      <_summary>Whether to obey Content-Disposition:inline message header hint</_summary>
+      <_description>Set to 'false' to block automatic display of attachments with Content-Disposition: 
inline.</_description>
+    </key>
     <key name="drag-and-drop-save-file-format" type="s">
       <default>'mbox'</default>
       <_summary>Save file format for drag-and-drop operation</_summary>
diff --git a/em-format/e-mail-part-utils.c b/em-format/e-mail-part-utils.c
index 4a6ef40..b0899ee 100644
--- a/em-format/e-mail-part-utils.c
+++ b/em-format/e-mail-part-utils.c
@@ -584,8 +584,16 @@ e_mail_part_is_inline (CamelMimePart *mime_part,
 
        disposition = camel_mime_part_get_disposition (mime_part);
 
-       if (disposition != NULL)
+       if (disposition != NULL) {
                is_inline = (g_ascii_strcasecmp (disposition, "inline") == 0);
+               if (is_inline) {
+                       GSettings *settings;
+
+                       settings = e_util_ref_settings ("org.gnome.evolution.mail");
+                       is_inline = g_settings_get_boolean (settings, "display-content-disposition-inline");
+                       g_clear_object (&settings);
+               }
+       }
 
        if ((extensions == NULL) || g_queue_is_empty (extensions))
                return is_inline;
diff --git a/em-format/e-mail-part.c b/em-format/e-mail-part.c
index 687ac9d..432481c 100644
--- a/em-format/e-mail-part.c
+++ b/em-format/e-mail-part.c
@@ -526,8 +526,13 @@ e_mail_part_should_show_inline (EMailPart *part)
 
        disposition = camel_mime_part_get_content_disposition (mime_part);
        if (disposition && disposition->disposition &&
-           g_ascii_strncasecmp (disposition->disposition, "inline", 6) == 0)
-               res = TRUE;
+           g_ascii_strncasecmp (disposition->disposition, "inline", 6) == 0) {
+               GSettings *settings;
+
+               settings = e_util_ref_settings ("org.gnome.evolution.mail");
+               res = g_settings_get_boolean (settings, "display-content-disposition-inline");
+               g_clear_object (&settings);
+       }
 
        g_object_unref (mime_part);