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+ Fri, 14 Dec 2012 19:07:56 -0800 (PST)\r
+From: Peter Wang <novalazy@gmail.com>\r
+To: notmuch@notmuchmail.org\r
+Subject: [PATCH v5 3/4] show: indicate length, encoding of omitted body\r
+ content\r
+Date: Sat, 15 Dec 2012 14:06:44 +1100\r
+Message-Id: <1355540805-24937-4-git-send-email-novalazy@gmail.com>\r
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+\r
+If a leaf part's body content is omitted, return the encoded length and\r
+transfer encoding in --format=json output. This information may be used\r
+by the consumer, e.g. to decide whether to download a large attachment\r
+over a slow link.\r
+\r
+Returning the _encoded_ content length is more efficient than returning\r
+the _decoded_ content length. Returning the transfer encoding allows\r
+the consumer to estimate the decoded content length.\r
+---\r
+ devel/schemata | 9 ++++++++-\r
+ notmuch-show.c | 16 ++++++++++++++--\r
+ 2 files changed, 22 insertions(+), 3 deletions(-)\r
+\r
+diff --git a/devel/schemata b/devel/schemata\r
+index d1ab983..7d167be 100644\r
+--- a/devel/schemata\r
++++ b/devel/schemata\r
+@@ -75,7 +75,14 @@ part = {\r
+ # A leaf part's body content is optional, but may be included if\r
+ # it can be correctly encoded as a string. Consumers should use\r
+ # this in preference to fetching the part content separately.\r
+- content?: string\r
++ content?: string,\r
++ # If a leaf part's body content is not included, the length of\r
++ # the encoded content (in bytes) may be given instead.\r
++ content-length?: int,\r
++ # If a leaf part's body content is not included, its transfer encoding\r
++ # may be given. Using this and the encoded content length, it is\r
++ # possible for the consumer to estimate the decoded content length.\r
++ content-transfer-encoding?: string\r
+ }\r
+ \r
+ # The headers of a message or part (format_headers_sprinter with reply = FALSE)\r
+diff --git a/notmuch-show.c b/notmuch-show.c\r
+index a781a49..a8a348d 100644\r
+--- a/notmuch-show.c\r
++++ b/notmuch-show.c\r
+@@ -600,14 +600,26 @@ format_part_text (const void *ctx, sprinter_t *sp, mime_node_t *node,\r
+ }\r
+ \r
+ static void\r
+-format_omitted_part_meta (sprinter_t *sp, GMimeObject *meta)\r
++format_omitted_part_meta (sprinter_t *sp, GMimeObject *meta, GMimePart *part)\r
+ {\r
+ const char *content_charset = g_mime_object_get_content_type_parameter (meta, "charset");\r
++ const char *cte = g_mime_object_get_header (meta, "content-transfer-encoding");\r
++ GMimeDataWrapper *wrapper = g_mime_part_get_content_object (part);\r
++ GMimeStream *stream = g_mime_data_wrapper_get_stream (wrapper);\r
++ ssize_t content_length = g_mime_stream_length (stream);\r
+ \r
+ if (content_charset != NULL) {\r
+ sp->map_key (sp, "content-charset");\r
+ sp->string (sp, content_charset);\r
+ }\r
++ if (cte != NULL) {\r
++ sp->map_key (sp, "content-transfer-encoding");\r
++ sp->string (sp, cte);\r
++ }\r
++ if (content_length >= 0) {\r
++ sp->map_key (sp, "content-length");\r
++ sp->integer (sp, content_length);\r
++ }\r
+ }\r
+ \r
+ void\r
+@@ -699,7 +711,7 @@ format_part_sprinter (const void *ctx, sprinter_t *sp, mime_node_t *node,\r
+ sp->string_len (sp, (char *) part_content->data, part_content->len);\r
+ g_object_unref (stream_memory);\r
+ } else {\r
+- format_omitted_part_meta (sp, meta);\r
++ format_omitted_part_meta (sp, meta, GMIME_PART (node->part));\r
+ }\r
+ } else if (GMIME_IS_MULTIPART (node->part)) {\r
+ sp->map_key (sp, "content");\r
+-- \r
+1.7.12.1\r
+\r
projects / notmuch-archives.git / commitdiff