util/crypto: improve comment

[notmuch] / util / gmime-extra.c

diff --git a/util/gmime-extra.c b/util/gmime-extra.c
index bc1e3c4d94bb75b04c7b24c8e8816770a7e83434..7562d9062a20ab1b1a2a9c917c3d4e9b56afe7f5 100644 (file)
--- a/util/gmime-extra.c
+++ b/util/gmime-extra.c
@@ -1,127 +1,93 @@
 #include "gmime-extra.h"
 #include <string.h>
 
+static
 GMimeStream *
-g_mime_stream_stdout_new()
-{
-    GMimeStream *stream_stdout = NULL;
-    GMimeStream *stream_buffered = NULL;
+_gzfile_maybe_filter (GMimeStream *file_stream) {
+    char buf[4];
+    int bytes_read;
 
-    stream_stdout = g_mime_stream_pipe_new (STDOUT_FILENO);
-    if (!stream_stdout)
+    if ((bytes_read = g_mime_stream_read (file_stream, buf, sizeof (buf))) < 0)
        return NULL;
 
-    g_mime_stream_pipe_set_owner (GMIME_STREAM_PIPE (stream_stdout), FALSE);
+    if (g_mime_stream_reset (file_stream))
+       return NULL;
 
-    stream_buffered = g_mime_stream_buffer_new (stream_stdout, GMIME_STREAM_BUFFER_BLOCK_WRITE);
+    /* check for gzipped input */
+    if (bytes_read >= 2 && buf[0] == 0x1f && (unsigned char)buf[1] == 0x8b) {
+       GMimeStream *gzstream;
+       GMimeFilter *gzfilter;
 
-    g_object_unref (stream_stdout);
+       gzfilter = g_mime_filter_gzip_new (GMIME_FILTER_GZIP_MODE_UNZIP, 0);
+       if (! gzfilter)
+           return NULL;
 
-    return stream_buffered;
-}
+       gzstream = g_mime_stream_filter_new (file_stream);
+       if (! gzstream)
+           return NULL;
 
-/**
- * copy a glib string into a talloc context, and free it.
- */
-static char*
-g_string_talloc_strdup (void *ctx, char *g_string)
-{
-    char *new_str = talloc_strdup (ctx, g_string);
-    g_free (g_string);
-    return new_str;
+       /* ignore filter id */
+       (void)g_mime_stream_filter_add ((GMimeStreamFilter *)gzstream, gzfilter);
+       return gzstream;
+    } else {
+       return file_stream;
+    }
 }
 
-#if (GMIME_MAJOR_VERSION < 3)
-
-const char *
-g_mime_certificate_get_valid_userid (GMimeCertificate *cert)
+GMimeStream *
+g_mime_stream_gzfile_new (int fd)
 {
-    /* output user id only if validity is FULL or ULTIMATE. */
-    /* note that gmime 2.6 is using the term "trust" here, which
-     * is WRONG.  It's actually user id "validity". */
-    const char *name = g_mime_certificate_get_name (cert);
-    if (name == NULL)
-       return name;
-    GMimeCertificateTrust trust = g_mime_certificate_get_trust (cert);
-    if (trust == GMIME_CERTIFICATE_TRUST_FULLY || trust == GMIME_CERTIFICATE_TRUST_ULTIMATE)
-       return name;
-    return NULL;
-}
+    GMimeStream *file_stream;
 
-char *
-g_mime_message_get_address_string (GMimeMessage *message, GMimeRecipientType type)
-{
-    InternetAddressList *list = g_mime_message_get_recipients (message, type);
-    return internet_address_list_to_string (list, 0);
-}
+    file_stream = g_mime_stream_fs_new (fd);
+    if (! file_stream)
+       return NULL;
 
-inline InternetAddressList *
-g_mime_message_get_addresses (GMimeMessage *message, GMimeRecipientType type)
-{
-    return g_mime_message_get_recipients (message, type);
+    return _gzfile_maybe_filter (file_stream);
 }
 
-char *
-g_mime_message_get_date_string (void *ctx, GMimeMessage *message)
+GMimeStream *
+g_mime_stream_gzfile_open (const char *filename)
 {
-    char *date = g_mime_message_get_date_as_string (message);
-    return g_string_talloc_strdup (ctx, date);
-}
+    GMimeStream *file_stream;
 
-InternetAddressList *
-g_mime_message_get_from (GMimeMessage *message)
-{
-    return internet_address_list_parse_string (g_mime_message_get_sender (message));
-}
+    file_stream = g_mime_stream_fs_open (filename, 0, 0, NULL);
+    if (! file_stream)
+       return NULL;
 
-const char *
-g_mime_message_get_from_string (GMimeMessage *message) {
-    return  g_mime_message_get_sender (message);
+    return _gzfile_maybe_filter (file_stream);
 }
 
-InternetAddressList *
-g_mime_message_get_reply_to_list (GMimeMessage *message)
+GMimeStream *
+g_mime_stream_stdout_new()
 {
-    const char *reply_to;
+    GMimeStream *stream_stdout = NULL;
+    GMimeStream *stream_buffered = NULL;
 
-    reply_to = g_mime_message_get_reply_to (message);
-    if (reply_to && *reply_to)
-       return internet_address_list_parse_string (reply_to);
-    else
+    stream_stdout = g_mime_stream_pipe_new (STDOUT_FILENO);
+    if (!stream_stdout)
        return NULL;
-}
 
-/**
- * return talloc allocated reply-to string
- */
-char *
-g_mime_message_get_reply_to_string (void *ctx, GMimeMessage *message)
-{
-    return talloc_strdup(ctx, g_mime_message_get_reply_to (message));
-}
+    g_mime_stream_pipe_set_owner (GMIME_STREAM_PIPE (stream_stdout), FALSE);
 
-gboolean
-g_mime_signature_status_good (GMimeSignatureStatus status) {
-    return (status == GMIME_SIGNATURE_STATUS_GOOD);
-}
+    stream_buffered = g_mime_stream_buffer_new (stream_stdout, GMIME_STREAM_BUFFER_BLOCK_WRITE);
 
-gboolean
-g_mime_signature_status_bad (GMimeSignatureStatus status) {
-    return (status == GMIME_SIGNATURE_STATUS_BAD);
-}
+    g_object_unref (stream_stdout);
 
-gboolean
-g_mime_signature_status_error (GMimeSignatureError error) {
-    return (error != GMIME_SIGNATURE_ERROR_NONE);
+    return stream_buffered;
 }
 
-gint64
-g_mime_utils_header_decode_date_unix (const char *date) {
-    return (gint64) g_mime_utils_header_decode_date (date, NULL);
+/**
+ * copy a glib string into a talloc context, and free it.
+ */
+static char*
+g_string_talloc_strdup (void *ctx, char *g_string)
+{
+    char *new_str = talloc_strdup (ctx, g_string);
+    g_free (g_string);
+    return new_str;
 }
 
-#else /* GMime >= 3.0 */
-
 const char *
 g_mime_certificate_get_valid_userid (GMimeCertificate *cert)
 {
@@ -223,5 +189,3 @@ g_mime_utils_header_decode_date_unix (const char *date) {
 
     return ret;
 }
-
-#endif