dovecot/core-2.2: src/lib-mail/message-header-decode.c annotate

annotate src/lib-mail/message-header-decode.c @ 6954:aee731c09668 HEAD

If we encounter an unknown charset, get the ASCII (or UTF-8 actually) characters instead of ignoring it completely.

author	Timo Sirainen <tss@iki.fi>
date	Sat, 08 Dec 2007 15:59:48 +0200
parents	63e225ab7361
children	7ed926ed7aa4

rev	line source
6429 65c69a53a7be Replaced my Copyright notices. The year range always ends with 2007 now. Timo Sirainen <tss@iki.fi> parents: 6133 diff changeset	1 /* Copyright (c) 2002-2007 Dovecot authors, see the included COPYING file */
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	2
d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	3 #include "lib.h"
d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	4 #include "base64.h"
d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	5 #include "buffer.h"
6131 5f56b2eb32b3 Use uni_utf8_to_decomposed_titlecase() to have proper case-insensitive UTF-8 Timo Sirainen <tss@iki.fi> parents: 6123 diff changeset	6 #include "unichar.h"
6118 841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	7 #include "charset-utf8.h"
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	8 #include "quoted-printable.h"
d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	9 #include "message-header-decode.h"
d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	10
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	11 static size_t
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	12 message_header_decode_encoded(const unsigned char *data, size_t size,
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	13 buffer_t decodebuf, unsigned int charsetlen_r)
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	14 {
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	15 #define QCOUNT 3
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	16 unsigned int num = 0;
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	17 size_t i, start_pos[QCOUNT];
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	18
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	19 /* data should contain "charset?encoding?text?=" */
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	20 for (i = 0; i < size; i++) {
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	21 if (data[i] == '?') {
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	22 start_pos[num++] = i;
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	23 if (num == QCOUNT)
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	24 break;
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	25 }
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	26 }
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	27 if (i == size \|\| data[i+1] != '=') {
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	28 /* invalid block */
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	29 return 0;
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	30 }
d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	31
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	32 buffer_append(decodebuf, data, start_pos[0]);
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	33 buffer_append_c(decodebuf, '\0');
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	34 *charsetlen_r = decodebuf->used;
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	35
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	36 switch (data[start_pos[0]+1]) {
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	37 case 'q':
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	38 case 'Q':
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	39 quoted_printable_decode(data + start_pos[1] + 1,
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	40 start_pos[2] - start_pos[1] - 1,
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	41 NULL, decodebuf);
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	42 break;
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	43 case 'b':
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	44 case 'B':
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	45 if (base64_decode(data + start_pos[1] + 1,
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	46 start_pos[2] - start_pos[1] - 1,
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	47 NULL, decodebuf) < 0) {
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	48 /* contains invalid data. show what we got so far. */
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	49 }
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	50 break;
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	51 default:
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	52 /* unknown encoding */
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	53 return 0;
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	54 }
d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	55
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	56 return start_pos[2] + 2;
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	57 }
d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	58
d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	59 void message_header_decode(const unsigned char *data, size_t size,
1038 60646878858e Function typedefs now define them as functions, not function pointers. Timo Sirainen <tss@iki.fi> parents: 953 diff changeset	60 message_header_decode_callback_t *callback,
953 411006be3c66 Naming change for function typedefs. Timo Sirainen <tss@iki.fi> parents: 903 diff changeset	61 void *context)
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	62 {
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	63 buffer_t *decodebuf = NULL;
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	64 unsigned int charsetlen = 0;
6950 63e225ab7361 If header contains invalid MIME input, preserve the =? in output. Timo Sirainen <tss@iki.fi> parents: 6910 diff changeset	65 size_t pos, start_pos, ret;
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	66
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	67 /* =?charset?Q\|B?text?= */
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	68 start_pos = pos = 0;
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	69 for (pos = 0; pos + 1 < size; ) {
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	70 if (data[pos] != '=' \|\| data[pos+1] != '?') {
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	71 pos++;
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	72 continue;
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	73 }
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	74
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	75 /* encoded string beginning */
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	76 if (pos != start_pos) {
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	77 /* send the unencoded data so far */
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	78 if (!callback(data + start_pos, pos - start_pos,
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	79 NULL, context)) {
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	80 start_pos = size;
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	81 break;
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	82 }
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	83 }
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	84
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	85 if (decodebuf == NULL) {
6537 58d9f94b9919 message_header_decode(): Don't use t_push/t_pop. The callback may want to Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	86 decodebuf = buffer_create_dynamic(default_pool,
58d9f94b9919 message_header_decode(): Don't use t_push/t_pop. The callback may want to Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	87 size - pos);
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	88 } else {
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	89 buffer_set_used_size(decodebuf, 0);
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	90 }
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	91
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	92 pos += 2;
6950 63e225ab7361 If header contains invalid MIME input, preserve the =? in output. Timo Sirainen <tss@iki.fi> parents: 6910 diff changeset	93 ret = message_header_decode_encoded(data + pos, size - pos,
63e225ab7361 If header contains invalid MIME input, preserve the =? in output. Timo Sirainen <tss@iki.fi> parents: 6910 diff changeset	94 decodebuf, &charsetlen);
63e225ab7361 If header contains invalid MIME input, preserve the =? in output. Timo Sirainen <tss@iki.fi> parents: 6910 diff changeset	95 if (ret == 0) {
63e225ab7361 If header contains invalid MIME input, preserve the =? in output. Timo Sirainen <tss@iki.fi> parents: 6910 diff changeset	96 start_pos = pos-2;
63e225ab7361 If header contains invalid MIME input, preserve the =? in output. Timo Sirainen <tss@iki.fi> parents: 6910 diff changeset	97 continue;
63e225ab7361 If header contains invalid MIME input, preserve the =? in output. Timo Sirainen <tss@iki.fi> parents: 6910 diff changeset	98 }
63e225ab7361 If header contains invalid MIME input, preserve the =? in output. Timo Sirainen <tss@iki.fi> parents: 6910 diff changeset	99 pos += ret;
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	100
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	101 if (decodebuf->used > charsetlen) {
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	102 /* decodebuf contains <charset> NUL <text> */
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	103 if (!callback(CONST_PTR_OFFSET(decodebuf->data,
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	104 charsetlen),
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	105 decodebuf->used - charsetlen,
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	106 decodebuf->data, context)) {
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	107 start_pos = size;
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	108 break;
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	109 }
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	110 }
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	111
2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	112 start_pos = pos;
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	113 }
d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	114
5517 2608b9e18bbb Rewrite/cleanup Timo Sirainen <tss@iki.fi> parents: 5503 diff changeset	115 if (size != start_pos) {
5503 b7573b83f999 Minor optimization. Timo Sirainen <tss@iki.fi> parents: 4906 diff changeset	116 (void)callback(data + start_pos, size - start_pos,
b7573b83f999 Minor optimization. Timo Sirainen <tss@iki.fi> parents: 4906 diff changeset	117 NULL, context);
b7573b83f999 Minor optimization. Timo Sirainen <tss@iki.fi> parents: 4906 diff changeset	118 }
6538 1b7d91f7b151 Fix for last change: don't crash if temp buffer wasn't created.. Timo Sirainen <tss@iki.fi> parents: 6537 diff changeset	119 if (decodebuf != NULL)
1b7d91f7b151 Fix for last change: don't crash if temp buffer wasn't created.. Timo Sirainen <tss@iki.fi> parents: 6537 diff changeset	120 buffer_free(&decodebuf);
783 d826ab8c8d62 Quoted-Printable decoding was buggy. Extracted RFC2047 header decoding into Timo Sirainen <tss@iki.fi> parents: diff changeset	121 }
6118 841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	122
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	123 struct decode_utf8_context {
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	124 buffer_t *dest;
6121 157e31742eeb message_header_decode_utf8() returns not TRUE if it actually changed Timo Sirainen <tss@iki.fi> parents: 6118 diff changeset	125 unsigned int changed:1;
157e31742eeb message_header_decode_utf8() returns not TRUE if it actually changed Timo Sirainen <tss@iki.fi> parents: 6118 diff changeset	126 unsigned int called:1;
6133 fd9f6b4d846e Renamed ucase parameters to dtcase which is more correct. Timo Sirainen <tss@iki.fi> parents: 6132 diff changeset	127 unsigned int dtcase:1;
6118 841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	128 };
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	129
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	130 static bool
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	131 decode_utf8_callback(const unsigned char *data, size_t size,
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	132 const char charset, void context)
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	133 {
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	134 struct decode_utf8_context *ctx = context;
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	135 struct charset_translation *t;
6910 c68564884bae charset_to_utf8_begin() was called with bad flags parameter (although it Timo Sirainen <tss@iki.fi> parents: 6538 diff changeset	136 enum charset_flags flags;
6118 841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	137
6121 157e31742eeb message_header_decode_utf8() returns not TRUE if it actually changed Timo Sirainen <tss@iki.fi> parents: 6118 diff changeset	138 /* one call with charset=NULL means nothing changed */
6123 d3299ed1332a Fixed message_header_decode_utf8() to return FALSE also for single Timo Sirainen <tss@iki.fi> parents: 6122 diff changeset	139 if (!ctx->called && charset == NULL)
6121 157e31742eeb message_header_decode_utf8() returns not TRUE if it actually changed Timo Sirainen <tss@iki.fi> parents: 6118 diff changeset	140 ctx->called = TRUE;
157e31742eeb message_header_decode_utf8() returns not TRUE if it actually changed Timo Sirainen <tss@iki.fi> parents: 6118 diff changeset	141 else
157e31742eeb message_header_decode_utf8() returns not TRUE if it actually changed Timo Sirainen <tss@iki.fi> parents: 6118 diff changeset	142 ctx->changed = TRUE;
157e31742eeb message_header_decode_utf8() returns not TRUE if it actually changed Timo Sirainen <tss@iki.fi> parents: 6118 diff changeset	143
6118 841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	144 if (charset == NULL \|\| charset_is_utf8(charset)) {
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	145 /* ASCII / UTF-8 */
6133 fd9f6b4d846e Renamed ucase parameters to dtcase which is more correct. Timo Sirainen <tss@iki.fi> parents: 6132 diff changeset	146 if (ctx->dtcase) {
6131 5f56b2eb32b3 Use uni_utf8_to_decomposed_titlecase() to have proper case-insensitive UTF-8 Timo Sirainen <tss@iki.fi> parents: 6123 diff changeset	147 (void)uni_utf8_to_decomposed_titlecase(data, size,
5f56b2eb32b3 Use uni_utf8_to_decomposed_titlecase() to have proper case-insensitive UTF-8 Timo Sirainen <tss@iki.fi> parents: 6123 diff changeset	148 ctx->dest);
6118 841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	149 } else {
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	150 buffer_append(ctx->dest, data, size);
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	151 }
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	152 return TRUE;
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	153 }
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	154
6910 c68564884bae charset_to_utf8_begin() was called with bad flags parameter (although it Timo Sirainen <tss@iki.fi> parents: 6538 diff changeset	155 flags = ctx->dtcase ? CHARSET_FLAG_DECOMP_TITLECASE : 0;
c68564884bae charset_to_utf8_begin() was called with bad flags parameter (although it Timo Sirainen <tss@iki.fi> parents: 6538 diff changeset	156 if (charset_to_utf8_begin(charset, flags, &t) < 0) {
6954 aee731c09668 If we encounter an unknown charset, get the ASCII (or UTF-8 actually) Timo Sirainen <tss@iki.fi> parents: 6950 diff changeset	157 /* data probably still contains some valid ASCII characters.
aee731c09668 If we encounter an unknown charset, get the ASCII (or UTF-8 actually) Timo Sirainen <tss@iki.fi> parents: 6950 diff changeset	158 append them. */
aee731c09668 If we encounter an unknown charset, get the ASCII (or UTF-8 actually) Timo Sirainen <tss@iki.fi> parents: 6950 diff changeset	159 if (uni_utf8_get_valid_data(data, size, ctx->dest))
aee731c09668 If we encounter an unknown charset, get the ASCII (or UTF-8 actually) Timo Sirainen <tss@iki.fi> parents: 6950 diff changeset	160 buffer_append(ctx->dest, data, size);
6118 841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	161 return TRUE;
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	162 }
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	163
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	164 /* ignore any errors */
6122 d86581f4a0c6 charset_to_utf8() isn't used anymore, so renamed charset_to_utf8_full() to it. Timo Sirainen <tss@iki.fi> parents: 6121 diff changeset	165 (void)charset_to_utf8(t, data, &size, ctx->dest);
6118 841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	166 charset_to_utf8_end(&t);
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	167 return TRUE;
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	168 }
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	169
6121 157e31742eeb message_header_decode_utf8() returns not TRUE if it actually changed Timo Sirainen <tss@iki.fi> parents: 6118 diff changeset	170 bool message_header_decode_utf8(const unsigned char *data, size_t size,
6133 fd9f6b4d846e Renamed ucase parameters to dtcase which is more correct. Timo Sirainen <tss@iki.fi> parents: 6132 diff changeset	171 buffer_t *dest, bool dtcase)
6118 841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	172 {
841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	173 struct decode_utf8_context ctx;
6123 d3299ed1332a Fixed message_header_decode_utf8() to return FALSE also for single Timo Sirainen <tss@iki.fi> parents: 6122 diff changeset	174 size_t used = dest->used;
6118 841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	175
6121 157e31742eeb message_header_decode_utf8() returns not TRUE if it actually changed Timo Sirainen <tss@iki.fi> parents: 6118 diff changeset	176 memset(&ctx, 0, sizeof(ctx));
6118 841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	177 ctx.dest = dest;
6133 fd9f6b4d846e Renamed ucase parameters to dtcase which is more correct. Timo Sirainen <tss@iki.fi> parents: 6132 diff changeset	178 ctx.dtcase = dtcase;
6118 841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	179 message_header_decode(data, size, decode_utf8_callback, &ctx);
6123 d3299ed1332a Fixed message_header_decode_utf8() to return FALSE also for single Timo Sirainen <tss@iki.fi> parents: 6122 diff changeset	180 return ctx.changed \|\| (dest->used - used != size);
6118 841b052e269e Added message_header_decode_utf8(). Use it in message decoder instead of Timo Sirainen <tss@iki.fi> parents: 5517 diff changeset	181 }

Mercurial > dovecot > core-2.2

annotate src/lib-mail/message-header-decode.c @ 6954:aee731c09668 HEAD