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-rw-r--r--camel/camel-mime-part-utils.c123
1 files changed, 100 insertions, 23 deletions
diff --git a/camel/camel-mime-part-utils.c b/camel/camel-mime-part-utils.c
index adf1e99dc8..3bec8bfb3c 100644
--- a/camel/camel-mime-part-utils.c
+++ b/camel/camel-mime-part-utils.c
@@ -44,6 +44,61 @@
#define d(x) /*(printf("%s(%d): ", __FILE__, __LINE__),(x))*/
+static char *
+extract_metatag_charset (GByteArray *buffer)
+{
+ /* example: <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> */
+ const char *slashhead, *data;
+ char *charset = NULL;
+
+ data = buffer->data;
+
+ slashhead = strstrcase (data, "</head");
+ if (!slashhead)
+ slashhead = data + buffer->len;
+
+ /* Yea, this is ugly */
+ while (data < slashhead) {
+ struct _header_param *params;
+ const char *meta, *metaend;
+ const char *val;
+
+ meta = strstrcase (data, "<meta");
+ if (!meta)
+ break;
+
+ metaend = strchr (meta, '>');
+ if (!metaend)
+ metaend = slashhead;
+ else
+ metaend++;
+
+ params = html_meta_param_list_decode (meta, metaend - meta);
+ if (params) {
+ val = header_param (params, "http-equiv");
+ if (val && !g_strcasecmp (val, "Content-Type")) {
+ struct _header_content_type *content_type;
+
+ val = header_param (params, "content");
+ content_type = header_content_type_decode (val);
+ charset = g_strdup (header_content_type_param (content_type, "charset"));
+
+ header_content_type_unref (content_type);
+ }
+
+ header_param_list_free (params);
+
+ /* break as soon as we find a charset */
+ if (charset)
+ break;
+ }
+
+ data = metaend;
+ }
+
+ return charset;
+}
+
/* simple data wrapper */
static void
simple_data_wrapper_construct_from_parser (CamelDataWrapper *dw, CamelMimeParser *mp)
@@ -91,6 +146,7 @@ simple_data_wrapper_construct_from_parser (CamelDataWrapper *dw, CamelMimeParser
ct = camel_mime_parser_content_type (mp);
if (header_content_type_is (ct, "text", "*")) {
const char *charset = header_content_type_param (ct, "charset");
+ char *acharset = NULL; /* to be alloca'd on demand */
if (fdec) {
d(printf("Adding CRLF conversion filter\n"));
@@ -99,6 +155,28 @@ simple_data_wrapper_construct_from_parser (CamelDataWrapper *dw, CamelMimeParser
crlfid = camel_mime_parser_filter_add (mp, fcrlf);
}
+ /* Possible Lame Mailer Alert... check the META tags for a charset */
+ if (!charset && header_content_type_is (ct, "text", "html")) {
+ GByteArray *bytes;
+ const char *buf;
+ off_t offset;
+ int len;
+
+ offset = camel_mime_parser_tell (mp);
+ /* if we can't find the charset within the first 2k, we ain't gonna find it */
+ len = camel_mime_parser_read (mp, &buf, 2048);
+ camel_mime_parser_seek (mp, offset, SEEK_SET);
+
+ /* we only do this because we need it to be null terminated */
+ bytes = g_byte_array_new ();
+ g_byte_array_append (bytes, buf, len);
+ g_byte_array_append (bytes, "", 1);
+
+ acharset = extract_metatag_charset (bytes);
+ charset = acharset;
+ g_byte_array_free (bytes, TRUE);
+ }
+
/* if the charset is not us-ascii or utf-8, then we need to convert to utf-8 */
if (charset && !(g_strcasecmp (charset, "us-ascii") == 0 || g_strcasecmp (charset, "utf-8") == 0)) {
d(printf("Adding conversion filter from %s to UTF-8\n", charset));
@@ -109,6 +187,8 @@ simple_data_wrapper_construct_from_parser (CamelDataWrapper *dw, CamelMimeParser
g_warning ("Cannot convert '%s' to 'UTF-8', message display may be corrupt", charset);
}
}
+
+ g_free (acharset);
}
buffer = g_byte_array_new ();
@@ -193,47 +273,45 @@ camel_mime_part_construct_content_from_parser (CamelMimePart *dw, CamelMimeParse
CamelDataWrapper *content = NULL;
char *buf;
int len;
-
- printf ("camel_mime_part_construct_content_from_parser()\n");
- switch (camel_mime_parser_state(mp)) {
+ switch (camel_mime_parser_state (mp)) {
case HSCAN_HEADER:
d(printf("Creating body part\n"));
- content = camel_data_wrapper_new();
- simple_data_wrapper_construct_from_parser(content, mp);
+ content = camel_data_wrapper_new ();
+ simple_data_wrapper_construct_from_parser (content, mp);
break;
case HSCAN_MESSAGE:
d(printf("Creating message part\n"));
- content = (CamelDataWrapper *)camel_mime_message_new();
- camel_mime_part_construct_from_parser((CamelMimePart *)content, mp);
+ content = (CamelDataWrapper *) camel_mime_message_new ();
+ camel_mime_part_construct_from_parser ((CamelMimePart *)content, mp);
break;
case HSCAN_MULTIPART: {
CamelDataWrapper *bodypart;
-
+
#ifndef NO_WARNINGS
#warning This should use a camel-mime-multipart
#endif
d(printf("Creating multi-part\n"));
- content = (CamelDataWrapper *)camel_multipart_new();
-
+ content = (CamelDataWrapper *)camel_multipart_new ();
+
/* FIXME: use the real boundary? */
- camel_multipart_set_boundary((CamelMultipart *)content, NULL);
- while (camel_mime_parser_step(mp, &buf, &len) != HSCAN_MULTIPART_END) {
- camel_mime_parser_unstep(mp);
- bodypart = (CamelDataWrapper *)camel_mime_part_new();
- camel_mime_part_construct_from_parser((CamelMimePart *)bodypart, mp);
- camel_multipart_add_part((CamelMultipart *)content, (CamelMimePart *)bodypart);
+ camel_multipart_set_boundary ((CamelMultipart *)content, NULL);
+ while (camel_mime_parser_step (mp, &buf, &len) != HSCAN_MULTIPART_END) {
+ camel_mime_parser_unstep (mp);
+ bodypart = (CamelDataWrapper *)camel_mime_part_new ();
+ camel_mime_part_construct_from_parser ((CamelMimePart *)bodypart, mp);
+ camel_multipart_add_part ((CamelMultipart *)content, (CamelMimePart *)bodypart);
camel_object_unref ((CamelObject *)bodypart);
}
-
+
/* these are only return valid data in the MULTIPART_END state */
- camel_multipart_set_preface((CamelMultipart *)content, camel_mime_parser_preface(mp));
- camel_multipart_set_postface((CamelMultipart *)content, camel_mime_parser_postface(mp));
-
+ camel_multipart_set_preface ((CamelMultipart *)content, camel_mime_parser_preface (mp));
+ camel_multipart_set_postface ((CamelMultipart *)content, camel_mime_parser_postface (mp));
+
d(printf("Created multi-part\n"));
break; }
default:
- g_warning("Invalid state encountered???: %d", camel_mime_parser_state(mp));
+ g_warning("Invalid state encountered???: %d", camel_mime_parser_state (mp));
}
if (content) {
#ifndef NO_WARNINGS
@@ -242,8 +320,7 @@ camel_mime_part_construct_content_from_parser (CamelMimePart *dw, CamelMimeParse
/* would you believe you have to set this BEFORE you set the content object??? oh my god !!!! */
camel_data_wrapper_set_mime_type_field (content,
camel_mime_part_get_content_type ((CamelMimePart *)dw));
- camel_medium_set_content_object((CamelMedium *)dw, content);
+ camel_medium_set_content_object ((CamelMedium *)dw, content);
camel_object_unref ((CamelObject *)content);
}
}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 06:22:45 +0800