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-rw-r--r--camel/camel-mime-utils.c3984
1 files changed, 0 insertions, 3984 deletions
diff --git a/camel/camel-mime-utils.c b/camel/camel-mime-utils.c
deleted file mode 100644
index 5f66c08ab4..0000000000
--- a/camel/camel-mime-utils.c
+++ /dev/null
@@ -1,3984 +0,0 @@
-/*
- * Copyright (C) 2000 Helix Code Inc.
- *
- * Authors: Michael Zucchi <notzed@helixcode.com>
- * Jeffrey Stedfast <fejj@helixcode.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public License
- * as published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/* dont touch this file without my permission - Michael */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/param.h> /* for MAXHOSTNAMELEN */
-#include <fcntl.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#ifndef MAXHOSTNAMELEN
-#define MAXHOSTNAMELEN 1024
-#endif
-
-#include <iconv.h>
-
-#include <time.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <regex.h>
-
-#include <glib.h>
-#include <gal/unicode/gunicode.h>
-
-#include "camel-mime-utils.h"
-#include "camel-charset-map.h"
-
-#ifdef ENABLE_THREADS
-#include <pthread.h>
-#endif
-
-#ifndef CLEAN_DATE
-#include "broken-date-parser.h"
-#endif
-
-#if 0
-int strdup_count = 0;
-int malloc_count = 0;
-int free_count = 0;
-
-#define g_strdup(x) (strdup_count++, g_strdup(x))
-#define g_malloc(x) (malloc_count++, g_malloc(x))
-#define g_free(x) (free_count++, g_free(x))
-#endif
-
-/* for all warnings ... */
-#define w(x) x
-
-#define d(x)
-#define d2(x)
-
-#define CAMEL_UUDECODE_CHAR(c) (((c) - ' ') & 077)
-
-static char *base64_alphabet =
-"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-static unsigned char tohex[16] = {
- '0', '1', '2', '3', '4', '5', '6', '7',
- '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
-};
-
-static unsigned short camel_mime_special_table[256] = {
- 5, 5, 5, 5, 5, 5, 5, 5, 5,231, 7, 5, 5, 39, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 242,448, 76,192,192,192,192,192, 76, 76,448,448, 76,448, 72,324,
- 448,448,448,448,448,448,448,448,448,448, 76, 76, 76, 4, 76, 68,
- 76,448,448,448,448,448,448,448,448,448,448,448,448,448,448,448,
- 448,448,448,448,448,448,448,448,448,448,448,108,236,108,192, 64,
- 192,448,448,448,448,448,448,448,448,448,448,448,448,448,448,448,
- 448,448,448,448,448,448,448,448,448,448,448,192,192,192,192, 5,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-};
-
-static unsigned char camel_mime_base64_rank[256] = {
- 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
- 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
- 255,255,255,255,255,255,255,255,255,255,255, 62,255,255,255, 63,
- 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,255,255,255, 0,255,255,
- 255, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
- 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,255,255,255,255,255,
- 255, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
- 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,255,255,255,255,255,
- 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
- 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
- 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
- 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
- 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
- 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
- 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
- 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
-};
-
-/*
- if any of these change, then the tables above should be regenerated
- by compiling this with -DBUILD_TABLE, and running.
-
- gcc -DCLEAN_DATE -o buildtable -I.. `gnome-config --cflags --libs gal` -DBUILD_TABLE camel-mime-utils.c camel-charset-map.c
- ./buildtable
-
-*/
-enum {
- IS_CTRL = 1<<0,
- IS_LWSP = 1<<1,
- IS_TSPECIAL = 1<<2,
- IS_SPECIAL = 1<<3,
- IS_SPACE = 1<<4,
- IS_DSPECIAL = 1<<5,
- IS_QPSAFE = 1<<6,
- IS_ESAFE = 1<<7, /* encoded word safe */
- IS_PSAFE = 1<<8, /* encoded word in phrase safe */
-};
-
-#define is_ctrl(x) ((camel_mime_special_table[(unsigned char)(x)] & IS_CTRL) != 0)
-#define is_lwsp(x) ((camel_mime_special_table[(unsigned char)(x)] & IS_LWSP) != 0)
-#define is_tspecial(x) ((camel_mime_special_table[(unsigned char)(x)] & IS_TSPECIAL) != 0)
-#define is_type(x, t) ((camel_mime_special_table[(unsigned char)(x)] & (t)) != 0)
-#define is_ttoken(x) ((camel_mime_special_table[(unsigned char)(x)] & (IS_TSPECIAL|IS_LWSP|IS_CTRL)) == 0)
-#define is_atom(x) ((camel_mime_special_table[(unsigned char)(x)] & (IS_SPECIAL|IS_SPACE|IS_CTRL)) == 0)
-#define is_dtext(x) ((camel_mime_special_table[(unsigned char)(x)] & IS_DSPECIAL) == 0)
-#define is_fieldname(x) ((camel_mime_special_table[(unsigned char)(x)] & (IS_CTRL|IS_SPACE)) == 0)
-#define is_qpsafe(x) ((camel_mime_special_table[(unsigned char)(x)] & IS_QPSAFE) != 0)
-#define is_especial(x) ((camel_mime_special_table[(unsigned char)(x)] & IS_ESPECIAL) != 0)
-#define is_psafe(x) ((camel_mime_special_table[(unsigned char)(x)] & IS_PSAFE) != 0)
-
-/* only needs to be run to rebuild the tables above */
-#ifdef BUILD_TABLE
-
-#define CHARS_LWSP " \t\n\r"
-#define CHARS_TSPECIAL "()<>@,;:\\\"/[]?="
-#define CHARS_SPECIAL "()<>@,;:\\\".[]"
-#define CHARS_CSPECIAL "()\\\r" /* not in comments */
-#define CHARS_DSPECIAL "[]\\\r \t" /* not in domains */
-#define CHARS_ESPECIAL "()<>@,;:\"/[]?.=_" /* list of characters that must be encoded.
- encoded word in text specials: rfc 2047 5(1)*/
-#define CHARS_PSPECIAL "!*+-/" /* list of additional characters that can be left unencoded.
- encoded word in phrase specials: rfc 2047 5(3) */
-
-static void
-header_remove_bits(unsigned short bit, unsigned char *vals)
-{
- int i;
-
- for (i=0;vals[i];i++)
- camel_mime_special_table[vals[i]] &= ~ bit;
-}
-
-static void
-header_init_bits(unsigned short bit, unsigned short bitcopy, int remove, unsigned char *vals)
-{
- int i;
- int len = strlen(vals);
-
- if (!remove) {
- for (i=0;i<len;i++) {
- camel_mime_special_table[vals[i]] |= bit;
- }
- if (bitcopy) {
- for (i=0;i<256;i++) {
- if (camel_mime_special_table[i] & bitcopy)
- camel_mime_special_table[i] |= bit;
- }
- }
- } else {
- for (i=0;i<256;i++)
- camel_mime_special_table[i] |= bit;
- for (i=0;i<len;i++) {
- camel_mime_special_table[vals[i]] &= ~bit;
- }
- if (bitcopy) {
- for (i=0;i<256;i++) {
- if (camel_mime_special_table[i] & bitcopy)
- camel_mime_special_table[i] &= ~bit;
- }
- }
- }
-}
-
-static void
-header_decode_init(void)
-{
- int i;
-
- for (i=0;i<256;i++) {
- camel_mime_special_table[i] = 0;
- if (i<32)
- camel_mime_special_table[i] |= IS_CTRL;
- if ((i>=33 && i<=60) || (i>=62 && i<=126) || i==32 || i==9)
- camel_mime_special_table[i] |= (IS_QPSAFE|IS_ESAFE);
- if ((i>='0' && i<='9') || (i>='a' && i<='z') || (i>='A' && i<= 'Z'))
- camel_mime_special_table[i] |= IS_PSAFE;
- }
- camel_mime_special_table[127] |= IS_CTRL;
- camel_mime_special_table[' '] |= IS_SPACE;
- header_init_bits(IS_LWSP, 0, 0, CHARS_LWSP);
- header_init_bits(IS_TSPECIAL, IS_CTRL, 0, CHARS_TSPECIAL);
- header_init_bits(IS_SPECIAL, 0, 0, CHARS_SPECIAL);
- header_init_bits(IS_DSPECIAL, 0, FALSE, CHARS_DSPECIAL);
- header_remove_bits(IS_ESAFE, CHARS_ESPECIAL);
- header_init_bits(IS_PSAFE, 0, 0, CHARS_PSPECIAL);
-}
-
-void
-base64_init(void)
-{
- int i;
-
- memset(camel_mime_base64_rank, 0xff, sizeof(camel_mime_base64_rank));
- for (i=0;i<64;i++) {
- camel_mime_base64_rank[(unsigned int)base64_alphabet[i]] = i;
- }
- camel_mime_base64_rank['='] = 0;
-}
-
-int main(int argc, char **argv)
-{
- int i;
- void run_test(void);
-
- header_decode_init();
- base64_init();
-
- printf("static unsigned short camel_mime_special_table[256] = {\n\t");
- for (i=0;i<256;i++) {
- printf("%3d,", camel_mime_special_table[i]);
- if ((i&15) == 15) {
- printf("\n");
- if (i!=255) {
- printf("\t");
- }
- }
- }
- printf("};\n");
-
- printf("static unsigned char camel_mime_base64_rank[256] = {\n\t");
- for (i=0;i<256;i++) {
- printf("%3d,", camel_mime_base64_rank[i]);
- if ((i&15) == 15) {
- printf("\n");
- if (i!=255) {
- printf("\t");
- }
- }
- }
- printf("};\n");
-
- run_test();
-
- return 0;
-}
-
-#endif
-
-
-/* call this when finished encoding everything, to
- flush off the last little bit */
-int
-base64_encode_close(unsigned char *in, int inlen, gboolean break_lines, unsigned char *out, int *state, int *save)
-{
- int c1, c2;
- unsigned char *outptr = out;
-
- if (inlen>0)
- outptr += base64_encode_step(in, inlen, break_lines, outptr, state, save);
-
- c1 = ((unsigned char *)save)[1];
- c2 = ((unsigned char *)save)[2];
-
- d(printf("mode = %d\nc1 = %c\nc2 = %c\n",
- (int)((char *)save)[0],
- (int)((char *)save)[1],
- (int)((char *)save)[2]));
-
- switch (((char *)save)[0]) {
- case 2:
- outptr[2] = base64_alphabet[ ( (c2 &0x0f) << 2 ) ];
- g_assert(outptr[2] != 0);
- goto skip;
- case 1:
- outptr[2] = '=';
- skip:
- outptr[0] = base64_alphabet[ c1 >> 2 ];
- outptr[1] = base64_alphabet[ c2 >> 4 | ( (c1&0x3) << 4 )];
- outptr[3] = '=';
- outptr += 4;
- break;
- }
- if (break_lines)
- *outptr++ = '\n';
-
- *save = 0;
- *state = 0;
-
- return outptr-out;
-}
-
-/*
- performs an 'encode step', only encodes blocks of 3 characters to the
- output at a time, saves left-over state in state and save (initialise to
- 0 on first invocation).
-*/
-int
-base64_encode_step(unsigned char *in, int len, gboolean break_lines, unsigned char *out, int *state, int *save)
-{
- register unsigned char *inptr, *outptr;
-
- if (len<=0)
- return 0;
-
- inptr = in;
- outptr = out;
-
- d(printf("we have %d chars, and %d saved chars\n", len, ((char *)save)[0]));
-
- if (len + ((char *)save)[0] > 2) {
- unsigned char *inend = in+len-2;
- register int c1, c2, c3;
- register int already;
-
- already = *state;
-
- switch (((char *)save)[0]) {
- case 1: c1 = ((unsigned char *)save)[1]; goto skip1;
- case 2: c1 = ((unsigned char *)save)[1];
- c2 = ((unsigned char *)save)[2]; goto skip2;
- }
-
- /* yes, we jump into the loop, no i'm not going to change it, it's beautiful! */
- while (inptr < inend) {
- c1 = *inptr++;
- skip1:
- c2 = *inptr++;
- skip2:
- c3 = *inptr++;
- *outptr++ = base64_alphabet[ c1 >> 2 ];
- *outptr++ = base64_alphabet[ c2 >> 4 | ( (c1&0x3) << 4 ) ];
- *outptr++ = base64_alphabet[ ( (c2 &0x0f) << 2 ) | (c3 >> 6) ];
- *outptr++ = base64_alphabet[ c3 & 0x3f ];
- /* this is a bit ugly ... */
- if (break_lines && (++already)>=19) {
- *outptr++='\n';
- already = 0;
- }
- }
-
- ((char *)save)[0] = 0;
- len = 2-(inptr-inend);
- *state = already;
- }
-
- d(printf("state = %d, len = %d\n",
- (int)((char *)save)[0],
- len));
-
- if (len>0) {
- register char *saveout;
-
- /* points to the slot for the next char to save */
- saveout = & (((char *)save)[1]) + ((char *)save)[0];
-
- /* len can only be 0 1 or 2 */
- switch(len) {
- case 2: *saveout++ = *inptr++;
- case 1: *saveout++ = *inptr++;
- }
- ((char *)save)[0]+=len;
- }
-
- d(printf("mode = %d\nc1 = %c\nc2 = %c\n",
- (int)((char *)save)[0],
- (int)((char *)save)[1],
- (int)((char *)save)[2]));
-
- return outptr-out;
-}
-
-
-/**
- * base64_decode_step: decode a chunk of base64 encoded data
- * @in: input stream
- * @len: max length of data to decode
- * @out: output stream
- * @state: holds the number of bits that are stored in @save
- * @save: leftover bits that have not yet been decoded
- *
- * Decodes a chunk of base64 encoded data
- **/
-int
-base64_decode_step(unsigned char *in, int len, unsigned char *out, int *state, unsigned int *save)
-{
- register unsigned char *inptr, *outptr;
- unsigned char *inend, c;
- register unsigned int v;
- int i;
-
- inend = in+len;
- outptr = out;
-
- /* convert 4 base64 bytes to 3 normal bytes */
- v=*save;
- i=*state;
- inptr = in;
- while (inptr<inend) {
- c = camel_mime_base64_rank[*inptr++];
- if (c != 0xff) {
- v = (v<<6) | c;
- i++;
- if (i==4) {
- *outptr++ = v>>16;
- *outptr++ = v>>8;
- *outptr++ = v;
- i=0;
- }
- }
- }
-
- *save = v;
- *state = i;
-
- /* quick scan back for '=' on the end somewhere */
- /* fortunately we can drop 1 output char for each trailing = (upto 2) */
- i=2;
- while (inptr>in && i) {
- inptr--;
- if (camel_mime_base64_rank[*inptr] != 0xff) {
- if (*inptr == '=')
- outptr--;
- i--;
- }
- }
-
- /* if i!= 0 then there is a truncation error! */
- return outptr-out;
-}
-
-char *
-base64_encode_simple (const char *data, int len)
-{
- unsigned char *out;
- int state = 0, outlen;
- unsigned int save = 0;
-
- out = g_malloc (len * 4 / 3 + 5);
- outlen = base64_encode_close ((unsigned char *)data, len, FALSE,
- out, &state, &save);
- out[outlen] = '\0';
- return (char *)out;
-}
-
-int
-base64_decode_simple (char *data, int len)
-{
- int state = 0;
- unsigned int save = 0;
-
- return base64_decode_step ((unsigned char *)data, len,
- (unsigned char *)data, &state, &save);
-}
-
-
-/**
- * uudecode_step: uudecode a chunk of data
- * @in: input stream
- * @len: max length of data to decode ( normally strlen(in) ??)
- * @out: output stream
- * @state: holds the number of bits that are stored in @save
- * @save: leftover bits that have not yet been decoded
- * @uulen: holds the value of the length-char which is used to calculate
- * how many more chars need to be decoded for that 'line'
- *
- * uudecodes a chunk of data. Assumes the "begin <mode> <file name>" line
- * has been stripped off.
- **/
-int
-uudecode_step (unsigned char *in, int len, unsigned char *out, int *state, guint32 *save, char *uulen)
-{
- register unsigned char *inptr, *outptr;
- unsigned char *inend, ch;
- register guint32 saved;
- gboolean last_was_eoln;
- int i;
-
- if (*uulen <= 0)
- last_was_eoln = TRUE;
- else
- last_was_eoln = FALSE;
-
- inend = in + len;
- outptr = out;
- saved = *save;
- i = *state;
- inptr = in;
- while (inptr < inend && *inptr) {
- if (*inptr == '\n' || last_was_eoln) {
- if (last_was_eoln) {
- *uulen = CAMEL_UUDECODE_CHAR (*inptr);
- last_was_eoln = FALSE;
- } else {
- last_was_eoln = TRUE;
- }
-
- inptr++;
- continue;
- }
-
- ch = *inptr++;
-
- if (*uulen > 0) {
- /* save the byte */
- saved = (saved << 8) | ch;
- i++;
- if (i == 4) {
- /* convert 4 uuencoded bytes to 3 normal bytes */
- unsigned char b0, b1, b2, b3;
-
- b0 = saved >> 24;
- b1 = saved >> 16 & 0xff;
- b2 = saved >> 8 & 0xff;
- b3 = saved & 0xff;
-
- if (*uulen >= 3) {
- *outptr++ = CAMEL_UUDECODE_CHAR (b0) << 2 | CAMEL_UUDECODE_CHAR (b1) >> 4;
- *outptr++ = CAMEL_UUDECODE_CHAR (b1) << 4 | CAMEL_UUDECODE_CHAR (b2) >> 2;
- *outptr++ = CAMEL_UUDECODE_CHAR (b2) << 6 | CAMEL_UUDECODE_CHAR (b3);
- } else {
- if (*uulen >= 1) {
- *outptr++ = CAMEL_UUDECODE_CHAR (b0) << 2 | CAMEL_UUDECODE_CHAR (b1) >> 4;
- }
- if (*uulen >= 2) {
- *outptr++ = CAMEL_UUDECODE_CHAR (b1) << 4 | CAMEL_UUDECODE_CHAR (b2) >> 2;
- }
- }
-
- i = 0;
- saved = 0;
- *uulen -= 3;
- }
- } else {
- break;
- }
- }
-
- *save = saved;
- *state = i;
-
- return outptr - out;
-}
-
-/* complete qp encoding */
-int
-quoted_encode_close(unsigned char *in, int len, unsigned char *out, int *state, int *save)
-{
- register unsigned char *outptr = out;
- int last;
-
- if (len>0)
- outptr += quoted_encode_step(in, len, outptr, state, save);
-
- last = *state;
- if (last != -1) {
- /* space/tab must be encoded if it's the last character on
- the line */
- if (is_qpsafe(last) && last!=' ' && last!=9) {
- *outptr++ = last;
- } else {
- *outptr++ = '=';
- *outptr++ = tohex[(last>>4) & 0xf];
- *outptr++ = tohex[last & 0xf];
- }
- }
-
- *save = 0;
- *state = -1;
-
- return outptr-out;
-}
-
-/* perform qp encoding, initialise state to -1 and save to 0 on first invocation */
-int
-quoted_encode_step (unsigned char *in, int len, unsigned char *out, int *statep, int *save)
-{
- register guchar *inptr, *outptr, *inend;
- guchar c;
- register int sofar = *save; /* keeps track of how many chars on a line */
- register int last = *statep; /* keeps track if last char to end was a space cr etc */
-
- inptr = in;
- inend = in + len;
- outptr = out;
- while (inptr < inend) {
- c = *inptr++;
- if (c == '\r') {
- if (last != -1) {
- *outptr++ = '=';
- *outptr++ = tohex[(last >> 4) & 0xf];
- *outptr++ = tohex[last & 0xf];
- sofar += 3;
- }
- last = c;
- } else if (c == '\n') {
- if (last != -1 && last != '\r') {
- *outptr++ = '=';
- *outptr++ = tohex[(last >> 4) & 0xf];
- *outptr++ = tohex[last & 0xf];
- }
- *outptr++ = '\n';
- sofar = 0;
- last = -1;
- } else {
- if (last != -1) {
- if (is_qpsafe(last)) {
- *outptr++ = last;
- sofar++;
- } else {
- *outptr++ = '=';
- *outptr++ = tohex[(last >> 4) & 0xf];
- *outptr++ = tohex[last & 0xf];
- sofar += 3;
- }
- }
-
- if (is_qpsafe(c)) {
- if (sofar > 74) {
- *outptr++ = '=';
- *outptr++ = '\n';
- sofar = 0;
- }
-
- /* delay output of space char */
- if (c==' ' || c=='\t') {
- last = c;
- } else {
- *outptr++ = c;
- sofar++;
- last = -1;
- }
- } else {
- if (sofar > 72) {
- *outptr++ = '=';
- *outptr++ = '\n';
- sofar = 3;
- } else
- sofar += 3;
-
- *outptr++ = '=';
- *outptr++ = tohex[(c >> 4) & 0xf];
- *outptr++ = tohex[c & 0xf];
- last = -1;
- }
- }
- }
- *save = sofar;
- *statep = last;
-
- return (outptr - out);
-}
-
-/*
- FIXME: this does not strip trailing spaces from lines (as it should, rfc 2045, section 6.7)
- Should it also canonicalise the end of line to CR LF??
-
- Note: Trailing rubbish (at the end of input), like = or =x or =\r will be lost.
-*/
-
-int
-quoted_decode_step(unsigned char *in, int len, unsigned char *out, int *savestate, int *saveme)
-{
- register unsigned char *inptr, *outptr;
- unsigned char *inend, c;
- int state, save;
-
- inend = in+len;
- outptr = out;
-
- d(printf("quoted-printable, decoding text '%.*s'\n", len, in));
-
- state = *savestate;
- save = *saveme;
- inptr = in;
- while (inptr<inend) {
- switch (state) {
- case 0:
- while (inptr<inend) {
- c = *inptr++;
- if (c=='=') {
- state = 1;
- break;
- }
-#ifdef CANONICALISE_EOL
- /*else if (c=='\r') {
- state = 3;
- } else if (c=='\n') {
- *outptr++ = '\r';
- *outptr++ = c;
- } */
-#endif
- else {
- *outptr++ = c;
- }
- }
- break;
- case 1:
- c = *inptr++;
- if (c=='\n') {
- /* soft break ... unix end of line */
- state = 0;
- } else {
- save = c;
- state = 2;
- }
- break;
- case 2:
- c = *inptr++;
- if (isxdigit(c) && isxdigit(save)) {
- c = toupper(c);
- save = toupper(save);
- *outptr++ = (((save>='A'?save-'A'+10:save-'0')&0x0f) << 4)
- | ((c>='A'?c-'A'+10:c-'0')&0x0f);
- } else if (c=='\n' && save == '\r') {
- /* soft break ... canonical end of line */
- } else {
- /* just output the data */
- *outptr++ = '=';
- *outptr++ = save;
- *outptr++ = c;
- }
- state = 0;
- break;
-#ifdef CANONICALISE_EOL
- case 3:
- /* convert \r -> to \r\n, leaves \r\n alone */
- c = *inptr++;
- if (c=='\n') {
- *outptr++ = '\r';
- *outptr++ = c;
- } else {
- *outptr++ = '\r';
- *outptr++ = '\n';
- *outptr++ = c;
- }
- state = 0;
- break;
-#endif
- }
- }
-
- *savestate = state;
- *saveme = save;
-
- return outptr-out;
-}
-
-/*
- this is for the "Q" encoding of international words,
- which is slightly different than plain quoted-printable (mainly by allowing 0x20 <> _)
-*/
-static int
-quoted_decode(const unsigned char *in, int len, unsigned char *out)
-{
- register const unsigned char *inptr;
- register unsigned char *outptr;
- unsigned const char *inend;
- unsigned char c, c1;
- int ret = 0;
-
- inend = in+len;
- outptr = out;
-
- d(printf("decoding text '%.*s'\n", len, in));
-
- inptr = in;
- while (inptr<inend) {
- c = *inptr++;
- if (c=='=') {
- /* silently ignore truncated data? */
- if (inend-in>=2) {
- c = toupper(*inptr++);
- c1 = toupper(*inptr++);
- *outptr++ = (((c>='A'?c-'A'+10:c-'0')&0x0f) << 4)
- | ((c1>='A'?c1-'A'+10:c1-'0')&0x0f);
- } else {
- ret = -1;
- break;
- }
- } else if (c=='_') {
- *outptr++ = 0x20;
- } else if (c==' ' || c==0x09) {
- /* FIXME: this is an error! ignore for now ... */
- ret = -1;
- break;
- } else {
- *outptr++ = c;
- }
- }
- if (ret==0) {
- return outptr-out;
- }
- return -1;
-}
-
-/* rfc2047 version of quoted-printable */
-/* safemask is the mask to apply to the camel_mime_special_table to determine what
- characters can safely be included without encoding */
-static int
-quoted_encode(const unsigned char *in, int len, unsigned char *out, unsigned short safemask)
-{
- register const unsigned char *inptr, *inend;
- unsigned char *outptr;
- unsigned char c;
-
- inptr = in;
- inend = in + len;
- outptr = out;
- while (inptr < inend) {
- c = *inptr++;
- if (c==' ') {
- *outptr++ = '_';
- } else if (camel_mime_special_table[c] & safemask) {
- *outptr++ = c;
- } else {
- *outptr++ = '=';
- *outptr++ = tohex[(c >> 4) & 0xf];
- *outptr++ = tohex[c & 0xf];
- }
- }
-
- d(printf("encoding '%.*s' = '%.*s'\n", len, in, outptr-out, out));
-
- return (outptr - out);
-}
-
-
-static void
-header_decode_lwsp(const char **in)
-{
- const char *inptr = *in;
- char c;
-
- d2(printf("is ws: '%s'\n", *in));
-
- while (is_lwsp(*inptr) || (*inptr =='(' && *inptr != '\0')) {
- while (is_lwsp(*inptr) && inptr != '\0') {
- d2(printf("(%c)", *inptr));
- inptr++;
- }
- d2(printf("\n"));
-
- /* check for comments */
- if (*inptr == '(') {
- int depth = 1;
- inptr++;
- while (depth && (c=*inptr) && *inptr != '\0') {
- if (c=='\\' && inptr[1]) {
- inptr++;
- } else if (c=='(') {
- depth++;
- } else if (c==')') {
- depth--;
- }
- inptr++;
- }
- }
- }
- *in = inptr;
-}
-
-/* decode rfc 2047 encoded string segment */
-static char *
-rfc2047_decode_word(const char *in, int len)
-{
- const char *inptr = in+2;
- const char *inend = in+len-2;
- char *inbuf;
- char *encname;
- int tmplen;
- int ret;
- char *decword = NULL;
- char *decoded = NULL;
- char *outbase = NULL;
- char *outbuf;
- int inlen, outlen;
- iconv_t ic;
-
- d(printf("rfc2047: decoding '%.*s'\n", len, in));
-
- /* quick check to see if this could possibly be a real encoded word */
- if (len < 8 || !(in[0] == '=' && in[1] == '?' && in[len-1] == '=' && in[len-2] == '?')) {
- d(printf("invalid\n"));
- return NULL;
- }
-
- /* skip past the charset to the encoding type */
- inptr = memchr (inptr, '?', inend-inptr);
- if (inptr != NULL && inptr < inend + 2 && inptr[2] == '?') {
- d(printf("found ?, encoding is '%c'\n", inptr[0]));
- inptr++;
- tmplen = inend-inptr-2;
- decword = alloca(tmplen); /* this will always be more-than-enough room */
- switch(toupper(inptr[0])) {
- case 'Q':
- inlen = quoted_decode(inptr+2, tmplen, decword);
- break;
- case 'B': {
- int state=0;
- unsigned int save=0;
- inlen = base64_decode_step((char *)inptr+2, tmplen, decword, &state, &save);
- /* if state != 0 then error? */
- break;
- }
- default:
- /* uhhh, unknown encoding type - probably an invalid encoded word string */
- return NULL;
- }
- d(printf("The encoded length = %d\n", inlen));
- if (inlen>0) {
- /* yuck, all this snot is to setup iconv! */
- tmplen = inptr-in-3;
- encname = alloca(tmplen+1);
- encname[tmplen]=0;
- memcpy(encname, in+2, tmplen);
-
- inbuf = decword;
-
- outlen = inlen*6+16;
- outbase = alloca(outlen);
- outbuf = outbase;
-
- /* TODO: Should this cache iconv converters? */
- ic = iconv_open("UTF-8", encname);
- if (ic != (iconv_t)-1) {
- ret = iconv(ic, &inbuf, &inlen, &outbuf, &outlen);
- if (ret>=0) {
- iconv(ic, NULL, 0, &outbuf, &outlen);
- *outbuf = 0;
- decoded = g_strdup(outbase);
- }
- iconv_close(ic);
- } else {
- w(g_warning("Cannot decode charset, header display may be corrupt: %s: %s",
- encname, strerror(errno)));
- /* TODO: Should this do this, or just leave the encoded strings? */
- decword[inlen] = 0;
- decoded = g_strdup(decword);
- }
- }
- }
-
- d(printf("decoded '%s'\n", decoded));
-
- return decoded;
-}
-
-/* grrr, glib should have this ! */
-static GString *
-g_string_append_len(GString *st, const char *s, int l)
-{
- char *tmp;
-
- tmp = alloca(l+1);
- tmp[l]=0;
- memcpy(tmp, s, l);
- return g_string_append(st, tmp);
-}
-
-/* ok, a lot of mailers are BROKEN, and send iso-latin1 encoded
- headers, when they should just be sticking to US-ASCII
- according to the rfc's. Anyway, since the conversion to utf-8
- is trivial, just do it here without iconv */
-static GString *
-append_latin1(GString *out, const char *in, int len)
-{
- unsigned int c;
-
- while (len) {
- c = (unsigned int)*in++;
- len--;
- if (c & 0x80) {
- out = g_string_append_c(out, 0xc0 | ((c>>6) & 0x3)); /* 110000xx */
- out = g_string_append_c(out, 0x80 | (c&0x3f)); /* 10xxxxxx */
- } else {
- out = g_string_append_c(out, c);
- }
- }
- return out;
-}
-
-/* decodes a simple text, rfc822 */
-static char *
-header_decode_text (const char *in, int inlen)
-{
- GString *out;
- char *inptr, *inend, *start, *word_start;
- char *decoded;
- gboolean wasdword = FALSE;
- gboolean wasspace = FALSE;
-
- out = g_string_new ("");
- start = inptr = (char *) in;
- inend = inptr + inlen;
-
- word_start = NULL;
- while (inptr && inptr < inend) {
- unsigned char c = *inptr++;
-
- if (is_lwsp (c) && !wasspace) {
- char *word, *dword;
-
- if (word_start)
- word = word_start;
- else
- word = start;
-
- dword = rfc2047_decode_word (word, inptr - word - 1);
-
- if (dword) {
- if (!wasdword && word_start)
- g_string_append_len (out, start, word_start - start);
-
- g_string_append (out, dword);
- g_free (dword);
- wasdword = TRUE;
- } else {
- out = append_latin1 (out, start, inptr - start - 1);
- wasdword = FALSE;
- }
-
- start = inptr - 1;
- word_start = NULL;
- wasspace = TRUE;
- } else if (!is_lwsp (c)) {
- wasspace = FALSE;
- if (!word_start)
- word_start = inptr - 1;
- }
- }
-
- if (inptr - start) {
- char *word, *dword;
-
- if (word_start)
- word = word_start;
- else
- word = start;
-
- dword = rfc2047_decode_word (word, inptr - word);
-
- if (dword) {
- if (!wasdword && word_start)
- g_string_append_len (out, start, word_start - start);
-
- g_string_append (out, dword);
- g_free (dword);
- } else {
- out = append_latin1 (out, start, inptr - start);
- }
- }
-
- decoded = out->str;
- g_string_free (out, FALSE);
-
- return decoded;
-}
-
-#if 0 /* This is broken */
-
-/* so in what way is it broken? */
-
-/* decodes a simple text, rfc822 */
-static char *
-header_decode_text(const char *in, int inlen)
-{
- GString *out;
- const char *inptr = in;
- const char *inend = in+inlen;
- char *encstart, *encend;
- char *decword;
-
- out = g_string_new("");
- while ( (encstart = strstr(inptr, "=?"))
- && (encend = strstr(encstart+2, "?=")) ) {
-
- decword = rfc2047_decode_word(encstart, encend-encstart+2);
- if (decword) {
- out = g_string_append_len(out, inptr, encstart-inptr);
- out = g_string_append_len(out, decword, strlen(decword));
- g_free (decword);
- } else {
- out = append_latin1(out, inptr, encend-inptr+2);
- }
- inptr = encend+2;
- }
- out = append_latin1(out, inptr, inend-inptr);
-
- encstart = out->str;
- g_string_free(out, FALSE);
-
- return encstart;
-}
-#endif
-
-char *
-header_decode_string(const char *in)
-{
- if (in == NULL)
- return NULL;
- return header_decode_text(in, strlen(in));
-}
-
-/* how long a sequence of pre-encoded words should be less than, to attempt to
- fit into a properly folded word. Only a guide. */
-#define CAMEL_FOLD_PREENCODED (24)
-
-/* FIXME: needs a way to cache iconv opens for different charsets? */
-static void
-rfc2047_encode_word(GString *outstring, const char *in, int len, const char *type, unsigned short safemask)
-{
- iconv_t ic = (iconv_t *)-1;
- char *buffer, *out, *ascii;
- size_t inlen, outlen, enclen, bufflen;
- char *inptr, *p;
- int first = 1;
-
- d(printf("Converting [%d] '%.*s' to %s\n", len, len, in, type));
-
- /* convert utf8->encoding */
- bufflen = len*6+16;
- buffer = alloca(bufflen);
- inlen = len;
- inptr = (char *) in;
-
- ascii = alloca(bufflen);
-
- if (strcasecmp(type, "UTF-8") != 0)
- ic = iconv_open(type, "UTF-8");
-
- while (inlen) {
- int convlen, i, proclen;
-
- /* break up words into smaller bits, what we really want is encoded + overhead < 75,
- but we'll just guess what that means in terms of input chars, and assume its good enough */
-
- out = buffer;
- outlen = bufflen;
-
- if (ic == (iconv_t) -1) {
- /* native encoding case, the easy one (?) */
- /* we work out how much we can convert, and still be in length */
- /* proclen will be the result of input characters that we can convert, to the nearest
- (approximated) valid utf8 char */
- convlen = 0;
- proclen = 0;
- p = inptr;
- i = 0;
- while (p < (in+len) && convlen < (75 - strlen("=?utf-8?q??="))) {
- unsigned char c = *p++;
-
- if (c >= 0xc0)
- proclen = i;
- i++;
- if (c < 0x80)
- proclen = i;
- if (camel_mime_special_table[c] & safemask)
- convlen += 1;
- else
- convlen += 3;
- }
- /* well, we probably have broken utf8, just copy it anyway what the heck */
- if (proclen == 0) {
- w(g_warning("Appear to have truncated utf8 sequence"));
- proclen = inlen;
- }
- memcpy(out, inptr, proclen);
- inptr += proclen;
- inlen -= proclen;
- out += proclen;
- } else {
- /* well we could do similar, but we can't (without undue effort), we'll just break it up into
- hopefully-small-enough chunks, and leave it at that */
- convlen = MIN(inlen, CAMEL_FOLD_PREENCODED);
- p = inptr;
- if (iconv(ic, &inptr, &convlen, &out, &outlen) == -1) {
- w(g_warning("Conversion problem: conversion truncated: %s", strerror(errno)));
- /* blah, we include it anyway, better than infinite loop ... */
- inptr = p + convlen;
- } else {
- /* make sure we flush out any shift state */
- iconv(ic, NULL, 0, &out, &outlen);
- }
- inlen -= (inptr - p);
- }
-
- enclen = out-buffer;
-
- /* create token */
- out = ascii;
- if (first)
- first = 0;
- else
- *out++ = ' ';
- out += sprintf(out, "=?%s?Q?", type);
- out += quoted_encode(buffer, enclen, out, safemask);
- sprintf(out, "?=");
-
- d(printf("converted part = %s\n", ascii));
-
- g_string_append(outstring, ascii);
- }
-
- if (ic != (iconv_t) -1) {
- iconv_close(ic);
- }
-}
-
-
-/* TODO: Should this worry about quotes?? */
-char *
-header_encode_string (const unsigned char *in)
-{
- const unsigned char *inptr = in, *start, *word;
- gboolean last_was_encoded = FALSE;
- gboolean last_was_space = FALSE;
- int encoding;
- GString *out;
- char *outstr;
-
- g_return_val_if_fail (g_utf8_validate (in, -1, NULL), NULL);
-
- if (in == NULL)
- return NULL;
-
- /* do a quick us-ascii check (the common case?) */
- while (*inptr) {
- if (*inptr > 127)
- break;
- inptr++;
- }
- if (*inptr == '\0')
- return g_strdup (in);
-
- /* This gets each word out of the input, and checks to see what charset
- can be used to encode it. */
- /* TODO: Work out when to merge subsequent words, or across word-parts */
- out = g_string_new ("");
- inptr = in;
- encoding = 0;
- word = NULL;
- start = inptr;
- while (inptr && *inptr) {
- gunichar c;
- const char *newinptr;
-
- newinptr = g_utf8_next_char (inptr);
- c = g_utf8_get_char (inptr);
- if (newinptr == NULL || !g_unichar_validate (c)) {
- w(g_warning ("Invalid UTF-8 sequence encountered (pos %d, char '%c'): %s",
- (inptr-in), inptr[0], in));
- inptr++;
- continue;
- }
-
-
- if (g_unichar_isspace (c) && !last_was_space) {
- /* we've reached the end of a 'word' */
- if (word && !(last_was_encoded && encoding)) {
- g_string_append_len (out, start, word - start);
- start = word;
- }
-
- switch (encoding) {
- case 0:
- out = g_string_append_len (out, word, inptr - start);
- last_was_encoded = FALSE;
- break;
- case 1:
- if (last_was_encoded)
- g_string_append_c (out, ' ');
-
- rfc2047_encode_word (out, start, inptr - start, "ISO-8859-1", IS_ESAFE);
- last_was_encoded = TRUE;
- break;
- case 2:
- if (last_was_encoded)
- g_string_append_c (out, ' ');
-
- rfc2047_encode_word (out, start, inptr - start,
- camel_charset_best (start, inptr - start), IS_ESAFE);
- last_was_encoded = TRUE;
- break;
- }
-
- last_was_space = TRUE;
- start = inptr;
- word = NULL;
- encoding = 0;
- } else if (c > 127 && c < 256) {
- encoding = MAX (encoding, 1);
- last_was_space = FALSE;
- } else if (c >= 256) {
- encoding = MAX (encoding, 2);
- last_was_space = FALSE;
- } else if (!g_unichar_isspace (c)) {
- last_was_space = FALSE;
- }
-
- if (!g_unichar_isspace (c) && !word)
- word = inptr;
-
- inptr = newinptr;
- }
-
- if (inptr - start) {
- if (word && !(last_was_encoded && encoding)) {
- g_string_append_len (out, start, word - start);
- start = word;
- }
-
- switch (encoding) {
- case 0:
- out = g_string_append_len (out, start, inptr - start);
- break;
- case 1:
- if (last_was_encoded)
- g_string_append_c (out, ' ');
-
- rfc2047_encode_word (out, start, inptr - start, "ISO-8859-1", IS_ESAFE);
- break;
- case 2:
- if (last_was_encoded)
- g_string_append_c (out, ' ');
-
- rfc2047_encode_word (out, start, inptr - start,
- camel_charset_best (start, inptr - start - 1), IS_ESAFE);
- break;
- }
- }
-
- outstr = out->str;
- g_string_free (out, FALSE);
-
- return outstr;
-}
-
-/* apply quoted-string rules to a string */
-static void
-quote_word(GString *out, gboolean do_quotes, const char *start, int len)
-{
- int i, c;
-
- /* TODO: What about folding on long lines? */
- if (do_quotes)
- g_string_append_c(out, '"');
- for (i=0;i<len;i++) {
- c = *start++;
- if (c == '\"' || c=='\\' || c=='\r')
- g_string_append_c(out, '\\');
- g_string_append_c(out, c);
- }
- if (do_quotes)
- g_string_append_c(out, '"');
-}
-
-/* incrementing possibility for the word type */
-enum _phrase_word_t {
- WORD_ATOM,
- WORD_QSTRING,
- WORD_2047
-};
-
-struct _phrase_word {
- const unsigned char *start, *end;
- enum _phrase_word_t type;
- int encoding;
-};
-
-static gboolean
-word_types_compatable (enum _phrase_word_t type1, enum _phrase_word_t type2)
-{
- switch (type1) {
- case WORD_ATOM:
- return type2 == WORD_QSTRING;
- case WORD_QSTRING:
- return type2 != WORD_2047;
- case WORD_2047:
- return type2 == WORD_2047;
- default:
- return FALSE;
- }
-}
-
-/* split the input into words with info about each word
- * merge common word types clean up */
-static GList *
-header_encode_phrase_get_words (const unsigned char *in)
-{
- const unsigned char *inptr = in, *start, *last;
- struct _phrase_word *word;
- enum _phrase_word_t type;
- int encoding, count = 0;
- GList *words = NULL;
-
- /* break the input into words */
- type = WORD_ATOM;
- last = inptr;
- start = inptr;
- encoding = 0;
- while (inptr && *inptr) {
- gunichar c;
- const char *newinptr;
-
- newinptr = g_utf8_next_char (inptr);
- c = g_utf8_get_char (inptr);
-
- if (!g_unichar_validate (c)) {
- w(g_warning ("Invalid UTF-8 sequence encountered (pos %d, char '%c'): %s",
- (inptr - in), inptr[0], in));
- inptr++;
- continue;
- }
-
- inptr = newinptr;
- if (g_unichar_isspace (c)) {
- if (count > 0) {
- word = g_new0 (struct _phrase_word, 1);
- word->start = start;
- word->end = last;
- word->type = type;
- word->encoding = encoding;
- words = g_list_append (words, word);
- count = 0;
- }
-
- start = inptr;
- type = WORD_ATOM;
- encoding = 0;
- } else {
- count++;
- if (c < 128) {
- if (!is_atom (c))
- type = MAX (type, WORD_QSTRING);
- } else if (c > 127 && c < 256) {
- type = WORD_2047;
- encoding = MAX (encoding, 1);
- } else if (c >= 256) {
- type = WORD_2047;
- encoding = MAX (encoding, 2);
- }
- }
-
- last = inptr;
- }
-
- if (count > 0) {
- word = g_new0 (struct _phrase_word, 1);
- word->start = start;
- word->end = last;
- word->type = type;
- word->encoding = encoding;
- words = g_list_append (words, word);
- }
-
- return words;
-}
-
-static void
-header_encode_phrase_merge_words (GList **wordsp)
-{
- GList *wordl, *nextl, *words = *wordsp;
- struct _phrase_word *word, *next;
-
- /* scan the list, checking for words of similar types that can be merged */
- wordl = words;
- while (wordl) {
- word = wordl->data;
- nextl = g_list_next (wordl);
-
- while (nextl) {
- next = nextl->data;
- /* merge nodes of the same type AND we are not creating too long a string */
- if (word_types_compatable (word->type, next->type)) {
- if (next->end - word->start < CAMEL_FOLD_PREENCODED) {
- /* the resulting word type is the MAX of the 2 types */
- word->type = MAX(word->type, next->type);
-
- word->end = next->end;
- words = g_list_remove_link (words, nextl);
- g_free (next);
- nextl = g_list_next (wordl);
- } else {
- /* if it is going to be too long, make sure we include the
- separating whitespace */
- word->end = next->start;
- break;
- }
- } else {
- break;
- }
- }
-
- wordl = g_list_next (wordl);
- }
-
- *wordsp = words;
-}
-
-/* encodes a phrase sequence (different quoting/encoding rules to strings) */
-char *
-header_encode_phrase (const unsigned char *in)
-{
- struct _phrase_word *word = NULL, *last_word = NULL;
- GList *words, *wordl;
- GString *out;
- char *outstr;
-
- if (in == NULL)
- return NULL;
-
- words = header_encode_phrase_get_words (in);
- if (!words)
- return NULL;
-
- header_encode_phrase_merge_words (&words);
-
- out = g_string_new ("");
-
- /* output words now with spaces between them */
- wordl = words;
- while (wordl) {
- const char *start;
- int len;
-
- word = wordl->data;
-
- /* append correct number of spaces between words */
- if (last_word && !(last_word->type == WORD_2047 && word->type == WORD_2047)) {
- /* one or both of the words are not encoded so we write the spaces out untouched */
- len = word->start - last_word->end;
- out = g_string_append_len (out, last_word->end, len);
- }
-
- switch (word->type) {
- case WORD_ATOM:
- out = g_string_append_len (out, word->start, word->end - word->start);
- break;
- case WORD_QSTRING:
- quote_word (out, TRUE, word->start, word->end - word->start);
- break;
- case WORD_2047:
- if (last_word && last_word->type == WORD_2047) {
- /* include the whitespace chars between these 2 words in the
- resulting rfc2047 encoded word. */
- len = word->end - last_word->end;
- start = last_word->end;
-
- /* encoded words need to be separated by linear whitespace */
- g_string_append_c (out, ' ');
- } else {
- len = word->end - word->start;
- start = word->start;
- }
-
- if (word->encoding == 1)
- rfc2047_encode_word (out, start, len, "ISO-8859-1", IS_PSAFE);
- else
- rfc2047_encode_word (out, start, len,
- camel_charset_best (start, len), IS_PSAFE);
- break;
- }
-
- g_free (last_word);
- wordl = g_list_next (wordl);
-
- last_word = word;
- }
-
- /* and we no longer need the list */
- g_free (word);
- g_list_free (words);
-
- outstr = out->str;
- g_string_free (out, FALSE);
-
- return outstr;
-}
-
-
-/* these are all internal parser functions */
-
-static char *
-decode_token(const char **in)
-{
- const char *inptr = *in;
- const char *start;
-
- header_decode_lwsp(&inptr);
- start = inptr;
- while (is_ttoken(*inptr))
- inptr++;
- if (inptr>start) {
- *in = inptr;
- return g_strndup(start, inptr-start);
- } else {
- return NULL;
- }
-}
-
-char *
-header_token_decode(const char *in)
-{
- if (in == NULL)
- return NULL;
-
- return decode_token(&in);
-}
-
-/*
- <"> * ( <any char except <"> \, cr / \ <any char> ) <">
-*/
-static char *
-header_decode_quoted_string(const char **in)
-{
- const char *inptr = *in;
- char *out = NULL, *outptr;
- int outlen;
- int c;
-
- header_decode_lwsp(&inptr);
- if (*inptr == '"') {
- const char *intmp;
- int skip = 0;
-
- /* first, calc length */
- inptr++;
- intmp = inptr;
- while ( (c = *intmp++) && c!= '"') {
- if (c=='\\' && *intmp) {
- intmp++;
- skip++;
- }
- }
- outlen = intmp-inptr-skip;
- out = outptr = g_malloc(outlen+1);
- while ( (c = *inptr++) && c!= '"') {
- if (c=='\\' && *inptr) {
- c = *inptr++;
- }
- *outptr++ = c;
- }
- *outptr = 0;
- }
- *in = inptr;
- return out;
-}
-
-static char *
-header_decode_atom(const char **in)
-{
- const char *inptr = *in, *start;
-
- header_decode_lwsp(&inptr);
- start = inptr;
- while (is_atom(*inptr))
- inptr++;
- *in = inptr;
- if (inptr > start)
- return g_strndup(start, inptr-start);
- else
- return NULL;
-}
-
-static char *
-header_decode_word(const char **in)
-{
- const char *inptr = *in;
-
- header_decode_lwsp(&inptr);
- if (*inptr == '"') {
- *in = inptr;
- return header_decode_quoted_string(in);
- } else {
- *in = inptr;
- return header_decode_atom(in);
- }
-}
-
-static char *
-header_decode_value(const char **in)
-{
- const char *inptr = *in;
-
- header_decode_lwsp(&inptr);
- if (*inptr == '"') {
- d(printf("decoding quoted string\n"));
- return header_decode_quoted_string(in);
- } else if (is_ttoken(*inptr)) {
- d(printf("decoding token\n"));
- /* this may not have the right specials for all params? */
- return decode_token(in);
- }
- return NULL;
-}
-
-/* shoudl this return -1 for no int? */
-static int
-header_decode_int(const char **in)
-{
- const char *inptr = *in;
- int c, v=0;
-
- header_decode_lwsp(&inptr);
- while ( (c=*inptr++ & 0xff)
- && isdigit(c) ) {
- v = v*10+(c-'0');
- }
- *in = inptr-1;
- return v;
-}
-
-#define HEXVAL(c) (isdigit (c) ? (c) - '0' : tolower (c) - 'a' + 10)
-
-static char *
-hex_decode (const char *in, int len)
-{
- const guchar *inend = (const guchar *) in + len;
- guchar *inptr, *outptr;
- char *outbuf;
-
- outptr = outbuf = g_malloc (len);
-
- inptr = (guchar *) in;
- while (inptr < inend) {
- if (*inptr == '%') {
- if (isxdigit (inptr[1]) && isxdigit (inptr[2])) {
- *outptr++ = HEXVAL (inptr[1]) * 16 + HEXVAL (inptr[2]);
- inptr += 3;
- } else
- *outptr++ = *inptr++;
- } else
- *outptr++ = *inptr++;
- }
-
- *outptr = '\0';
-
- return outbuf;
-}
-
-/* an rfc2184 encoded string looks something like:
- * us-ascii'en'This%20is%20even%20more%20
- */
-
-static char *
-rfc2184_decode (const char *in, int len)
-{
- const char *inptr = in;
- const char *inend = in + len;
- char *decoded = NULL;
- char *encoding;
-
- inptr = memchr (inptr, '\'', len);
- if (!inptr)
- return NULL;
-
- encoding = g_strndup (in, inptr - in);
- inptr = memchr (inptr + 1, '\'', inend - inptr - 1);
- if (!inptr) {
- g_free (encoding);
- return NULL;
- }
-
- inptr++;
- if (inptr < inend) {
- char *decword, *inbuf, *outbase, *outbuf;
- int inlen, outlen;
- iconv_t ic;
-
- inbuf = decword = hex_decode (inptr, inend - inptr);
- inlen = strlen (inbuf);
-
- outlen = inlen * 6 + 16;
- outbuf = outbase = g_malloc (outlen);
-
- ic = iconv_open ("UTF-8", encoding);
- if (ic != (iconv_t) -1) {
- int ret;
-
- ret = iconv (ic, &inbuf, &inlen, &outbuf, &outlen);
- if (ret >= 0) {
- iconv (ic, NULL, 0, &outbuf, &outlen);
- *outbuf = '\0';
- g_free (decoded);
- decoded = outbase;
- }
-
- iconv_close (ic);
- } else {
- decoded = decword;
- }
- }
-
- return decoded;
-}
-
-/* This function is basically the same as decode_token()
- * except that it will not accept *'s which have a special
- * meaning for rfc2184 params */
-static char *
-decode_param_token (const char **in)
-{
- const char *inptr = *in;
- const char *start;
-
- header_decode_lwsp (&inptr);
- start = inptr;
- while (is_ttoken (*inptr) && *inptr != '*')
- inptr++;
- if (inptr > start) {
- *in = inptr;
- return g_strndup (start, inptr-start);
- } else {
- return NULL;
- }
-}
-
-static gboolean
-header_decode_rfc2184_param (const char **in, char **paramp, int *part, gboolean *value_is_encoded)
-{
- gboolean is_rfc2184 = FALSE;
- const char *inptr = *in;
- char *param;
-
- param = decode_param_token (&inptr);
- header_decode_lwsp (&inptr);
-
- if (*inptr == '*') {
- is_rfc2184 = TRUE;
- inptr++;
- header_decode_lwsp (&inptr);
- if (*inptr == '=') {
- /* form := param*=value */
- if (value_is_encoded)
- *value_is_encoded = TRUE;
- } else {
- /* form := param*#=value or param*#*=value */
- *part = header_decode_int (&inptr);
- header_decode_lwsp (&inptr);
- if (*inptr == '*') {
- /* form := param*#*=value */
- if (value_is_encoded)
- *value_is_encoded = TRUE;
- inptr++;
- header_decode_lwsp (&inptr);
- }
- }
- }
-
- if (paramp)
- *paramp = param;
-
- if (param)
- *in = inptr;
-
- return is_rfc2184;
-}
-
-static int
-header_decode_param(const char **in, char **paramp, char **valuep, int *is_rfc2184_param)
-{
- gboolean is_rfc2184_encoded = FALSE;
- gboolean is_rfc2184 = FALSE;
- const char *inptr = *in;
- char *param, *value = NULL;
- int rfc2184_part = -1;
-
- *is_rfc2184_param = FALSE;
-
- is_rfc2184 = header_decode_rfc2184_param (&inptr, &param, &rfc2184_part,
- &is_rfc2184_encoded);
-
- if (*inptr == '=') {
- inptr++;
- value = header_decode_value (&inptr);
- if (is_rfc2184) {
- /* We have ourselves an rfc2184 parameter */
-
- if (rfc2184_part == -1) {
- /* rfc2184 allows the value to be broken into
- * multiple parts - this isn't one of them so
- * it is safe to decode it.
- */
- char *val;
-
- val = rfc2184_decode (value, strlen (value));
- g_free (value);
- value = val;
- } else {
- /* Since we are expecting to find the rest of
- * this paramter value later, let our caller know.
- */
- *is_rfc2184_param = TRUE;
- }
- } else if (value && !strcmp (value, "=?")) {
- /* We have a broken param value that is rfc2047 encoded.
- * Since both Outlook and Netscape/Mozilla do this, we
- * should handle this case.
- */
- char *val;
-
- val = rfc2047_decode_word (value, strlen (value));
- if (val) {
- g_free (value);
- value = val;
- }
- }
- }
-
- if (param && value) {
- *paramp = param;
- *valuep = value;
- *in = inptr;
- return 0;
- } else {
- g_free (param);
- g_free (value);
- return 1;
- }
-}
-
-char *
-header_param(struct _header_param *p, const char *name)
-{
- while (p && strcasecmp(p->name, name) != 0)
- p = p->next;
- if (p)
- return p->value;
- return NULL;
-}
-
-struct _header_param *
-header_set_param(struct _header_param **l, const char *name, const char *value)
-{
- struct _header_param *p = (struct _header_param *)l, *pn;
-
- while (p->next) {
- pn = p->next;
- if (!g_strcasecmp (pn->name, name)) {
- g_free (pn->value);
- if (value) {
- pn->value = g_strdup(value);
- return pn;
- } else {
- p->next = pn->next;
- g_free (pn->name);
- g_free(pn);
- return NULL;
- }
- }
- p = pn;
- }
-
- if (value == NULL)
- return NULL;
-
- pn = g_malloc(sizeof(*pn));
- pn->next = 0;
- pn->name = g_strdup(name);
- pn->value = g_strdup(value);
- p->next = pn;
-
- return pn;
-}
-
-const char *
-header_content_type_param(struct _header_content_type *t, const char *name)
-{
- if (t==NULL)
- return NULL;
- return header_param(t->params, name);
-}
-
-void header_content_type_set_param(struct _header_content_type *t, const char *name, const char *value)
-{
- header_set_param(&t->params, name, value);
-}
-
-/**
- * header_content_type_is:
- * @ct: A content type specifier, or #NULL.
- * @type: A type to check against.
- * @subtype: A subtype to check against, or "*" to match any subtype.
- *
- * Returns #TRUE if the content type @ct is of type @type/@subtype.
- * The subtype of "*" will match any subtype. If @ct is #NULL, then
- * it will match the type "text/plain".
- *
- * Return value: #TRUE or #FALSE depending on the matching of the type.
- **/
-int
-header_content_type_is(struct _header_content_type *ct, const char *type, const char *subtype)
-{
- /* no type == text/plain or text/"*" */
- if (ct==NULL || (ct->type == NULL && ct->subtype == NULL)) {
- return (!strcasecmp(type, "text")
- && (!strcasecmp(subtype, "plain")
- || !strcasecmp(subtype, "*")));
- }
-
- return (ct->type != NULL
- && (!strcasecmp(ct->type, type)
- && ((ct->subtype != NULL
- && !strcasecmp(ct->subtype, subtype))
- || !strcasecmp("*", subtype))));
-}
-
-void
-header_param_list_free(struct _header_param *p)
-{
- struct _header_param *n;
-
- while (p) {
- n = p->next;
- g_free(p->name);
- g_free(p->value);
- g_free(p);
- p = n;
- }
-}
-
-struct _header_content_type *
-header_content_type_new(const char *type, const char *subtype)
-{
- struct _header_content_type *t = g_malloc(sizeof(*t));
-
- t->type = g_strdup(type);
- t->subtype = g_strdup(subtype);
- t->params = NULL;
- t->refcount = 1;
- return t;
-}
-
-void
-header_content_type_ref(struct _header_content_type *ct)
-{
- if (ct)
- ct->refcount++;
-}
-
-
-void
-header_content_type_unref(struct _header_content_type *ct)
-{
- if (ct) {
- if (ct->refcount <= 1) {
- header_param_list_free(ct->params);
- g_free(ct->type);
- g_free(ct->subtype);
- g_free(ct);
- } else {
- ct->refcount--;
- }
- }
-}
-
-/* for decoding email addresses, canonically */
-static char *
-header_decode_domain(const char **in)
-{
- const char *inptr = *in, *start;
- int go = TRUE;
- char *ret;
- GString *domain = g_string_new("");
-
- /* domain ref | domain literal */
- header_decode_lwsp(&inptr);
- while (go) {
- if (*inptr == '[') { /* domain literal */
- domain = g_string_append(domain, "[ ");
- inptr++;
- header_decode_lwsp(&inptr);
- start = inptr;
- while (is_dtext(*inptr)) {
- domain = g_string_append_c(domain, *inptr);
- inptr++;
- }
- if (*inptr == ']') {
- domain = g_string_append(domain, " ]");
- inptr++;
- } else {
- w(g_warning("closing ']' not found in domain: %s", *in));
- }
- } else {
- char *a = header_decode_atom(&inptr);
- if (a) {
- domain = g_string_append(domain, a);
- g_free(a);
- } else {
- w(g_warning("missing atom from domain-ref"));
- break;
- }
- }
- header_decode_lwsp(&inptr);
- if (*inptr == '.') { /* next sub-domain? */
- domain = g_string_append_c(domain, '.');
- inptr++;
- header_decode_lwsp(&inptr);
- } else
- go = FALSE;
- }
-
- *in = inptr;
-
- ret = domain->str;
- g_string_free(domain, FALSE);
- return ret;
-}
-
-static char *
-header_decode_addrspec(const char **in)
-{
- const char *inptr = *in;
- char *word;
- GString *addr = g_string_new("");
-
- header_decode_lwsp(&inptr);
-
- /* addr-spec */
- word = header_decode_word(&inptr);
- if (word) {
- addr = g_string_append(addr, word);
- header_decode_lwsp(&inptr);
- g_free(word);
- while (*inptr == '.' && word) {
- inptr++;
- addr = g_string_append_c(addr, '.');
- word = header_decode_word(&inptr);
- if (word) {
- addr = g_string_append(addr, word);
- header_decode_lwsp(&inptr);
- g_free(word);
- } else {
- w(g_warning("Invalid address spec: %s", *in));
- }
- }
- if (*inptr == '@') {
- inptr++;
- addr = g_string_append_c(addr, '@');
- word = header_decode_domain(&inptr);
- if (word) {
- addr = g_string_append(addr, word);
- g_free(word);
- } else {
- w(g_warning("Invalid address, missing domain: %s", *in));
- }
- } else {
- w(g_warning("Invalid addr-spec, missing @: %s", *in));
- }
- } else {
- w(g_warning("invalid addr-spec, no local part"));
- }
-
- /* FIXME: return null on error? */
-
- *in = inptr;
- word = addr->str;
- g_string_free(addr, FALSE);
- return word;
-}
-
-/*
- address:
- word *('.' word) @ domain |
- *(word) '<' [ *('@' domain ) ':' ] word *( '.' word) @ domain |
-
- 1*word ':' [ word ... etc (mailbox, as above) ] ';'
- */
-
-/* mailbox:
- word *( '.' word ) '@' domain
- *(word) '<' [ *('@' domain ) ':' ] word *( '.' word) @ domain
- */
-
-static struct _header_address *
-header_decode_mailbox(const char **in)
-{
- const char *inptr = *in;
- char *pre;
- int closeme = FALSE;
- GString *addr;
- GString *name = NULL;
- struct _header_address *address = NULL;
- const char *comment = NULL;
-
- addr = g_string_new("");
-
- /* for each address */
- pre = header_decode_word(&inptr);
- header_decode_lwsp(&inptr);
- if (!(*inptr == '.' || *inptr == '@' || *inptr==',' || *inptr=='\0')) {
- /* ',' and '\0' required incase it is a simple address, no @ domain part (buggy writer) */
- name = g_string_new("");
- while (pre) {
- char *text, *last;
-
- /* perform internationalised decoding, and append */
- text = header_decode_string(pre);
- name = g_string_append(name, text);
- last = pre;
- g_free(text);
-
- pre = header_decode_word(&inptr);
- if (pre) {
- int l = strlen(last);
- int p = strlen(pre);
- /* dont append ' ' between sucsessive encoded words */
- if ((l>6 && last[l-2] == '?' && last[l-1] == '=')
- && (p>6 && pre[0] == '=' && pre[1] == '?')) {
- /* dont append ' ' */
- } else {
- name = g_string_append_c(name, ' ');
- }
- }
- g_free(last);
- }
- header_decode_lwsp(&inptr);
- if (*inptr == '<') {
- closeme = TRUE;
- inptr++;
- header_decode_lwsp(&inptr);
- if (*inptr == '@') {
- while (*inptr == '@') {
- inptr++;
- header_decode_domain(&inptr);
- header_decode_lwsp(&inptr);
- if (*inptr == ',') {
- inptr++;
- header_decode_lwsp(&inptr);
- }
- }
- if (*inptr == ':') {
- inptr++;
- } else {
- w(g_warning("broken route-address, missing ':': %s", *in));
- }
- }
- pre = header_decode_word(&inptr);
- header_decode_lwsp(&inptr);
- } else {
- w(g_warning("broken address? %s", *in));
- }
- }
-
- if (pre) {
- addr = g_string_append(addr, pre);
- } else {
- w(g_warning("No local-part for email address: %s", *in));
- }
-
- /* should be at word '.' localpart */
- while (*inptr == '.' && pre) {
- inptr++;
- g_free(pre);
- pre = header_decode_word(&inptr);
- if (pre) {
- addr = g_string_append_c(addr, '.');
- addr = g_string_append(addr, pre);
- }
- comment = inptr;
- header_decode_lwsp(&inptr);
- }
- g_free(pre);
-
- /* now at '@' domain part */
- if (*inptr == '@') {
- char *dom;
-
- inptr++;
- addr = g_string_append_c(addr, '@');
- comment = inptr;
- dom = header_decode_domain(&inptr);
- addr = g_string_append(addr, dom);
- g_free(dom);
- } else {
- w(g_warning("invalid address, no '@' domain part at %c: %s", *inptr, *in));
- }
-
- if (closeme) {
- header_decode_lwsp(&inptr);
- if (*inptr == '>') {
- inptr++;
- } else {
- w(g_warning("invalid route address, no closing '>': %s", *in));
- }
- } else if (name == NULL && comment != NULL && inptr>comment) { /* check for comment after address */
- char *text, *tmp;
- const char *comstart, *comend;
-
- /* this is a bit messy, we go from the last known position, because
- decode_domain/etc skip over any comments on the way */
- /* FIXME: This wont detect comments inside the domain itself,
- but nobody seems to use that feature anyway ... */
-
- d(printf("checking for comment from '%s'\n", comment));
-
- comstart = strchr(comment, '(');
- if (comstart) {
- comstart++;
- header_decode_lwsp(&inptr);
- comend = inptr-1;
- while (comend > comstart && comend[0] != ')')
- comend--;
-
- if (comend > comstart) {
- d(printf(" looking at subset '%.*s'\n", comend-comstart, comstart));
- tmp = g_strndup(comstart, comend-comstart);
- text = header_decode_string(tmp);
- name = g_string_new(text);
- g_free(tmp);
- g_free(text);
- }
- }
- }
-
- *in = inptr;
-
- if (addr->len > 0) {
- address = header_address_new_name(name?name->str:"", addr->str);
- }
-
- g_string_free(addr, TRUE);
- if (name)
- g_string_free(name, TRUE);
-
- d(printf("got mailbox: %s\n", addr->str));
- return address;
-}
-
-static struct _header_address *
-header_decode_address(const char **in)
-{
- const char *inptr = *in;
- char *pre;
- GString *group = g_string_new("");
- struct _header_address *addr = NULL, *member;
-
- /* pre-scan, trying to work out format, discard results */
- header_decode_lwsp(&inptr);
- while ( (pre = header_decode_word(&inptr)) ) {
- group = g_string_append(group, pre);
- group = g_string_append(group, " ");
- g_free(pre);
- }
- header_decode_lwsp(&inptr);
- if (*inptr == ':') {
- d(printf("group detected: %s\n", group->str));
- addr = header_address_new_group(group->str);
- /* that was a group spec, scan mailbox's */
- inptr++;
- /* FIXME: check rfc 2047 encodings of words, here or above in the loop */
- header_decode_lwsp(&inptr);
- if (*inptr != ';') {
- int go = TRUE;
- do {
- member = header_decode_mailbox(&inptr);
- if (member)
- header_address_add_member(addr, member);
- header_decode_lwsp(&inptr);
- if (*inptr == ',')
- inptr++;
- else
- go = FALSE;
- } while (go);
- if (*inptr == ';') {
- inptr++;
- } else {
- w(g_warning("Invalid group spec, missing closing ';': %s", *in));
- }
- } else {
- inptr++;
- }
- *in = inptr;
- } else {
- addr = header_decode_mailbox(in);
- }
-
- g_string_free(group, TRUE);
-
- return addr;
-}
-
-static char *
-header_msgid_decode_internal(const char **in)
-{
- const char *inptr = *in;
- char *msgid = NULL;
-
- d(printf("decoding Message-ID: '%s'\n", *in));
-
- header_decode_lwsp(&inptr);
- if (*inptr == '<') {
- inptr++;
- header_decode_lwsp(&inptr);
- msgid = header_decode_addrspec(&inptr);
- if (msgid) {
- header_decode_lwsp(&inptr);
- if (*inptr == '>') {
- inptr++;
- } else {
- w(g_warning("Missing closing '>' on message id: %s", *in));
- }
- } else {
- w(g_warning("Cannot find message id in: %s", *in));
- }
- } else {
- w(g_warning("missing opening '<' on message id: %s", *in));
- }
- *in = inptr;
-
- return msgid;
-}
-
-char *
-header_msgid_decode(const char *in)
-{
- if (in == NULL)
- return NULL;
-
- return header_msgid_decode_internal(&in);
-}
-
-void
-header_references_list_append_asis(struct _header_references **list, char *ref)
-{
- struct _header_references *w = (struct _header_references *)list, *n;
- while (w->next)
- w = w->next;
- n = g_malloc(sizeof(*n));
- n->id = ref;
- n->next = 0;
- w->next = n;
-}
-
-int
-header_references_list_size(struct _header_references **list)
-{
- int count = 0;
- struct _header_references *w = *list;
- while (w) {
- count++;
- w = w->next;
- }
- return count;
-}
-
-void
-header_references_list_clear(struct _header_references **list)
-{
- struct _header_references *w = *list, *n;
- while (w) {
- n = w->next;
- g_free(w->id);
- g_free(w);
- w = n;
- }
- *list = NULL;
-}
-
-/* generate a list of references, from most recent up */
-struct _header_references *
-header_references_decode(const char *in)
-{
- const char *inptr = in;
- struct _header_references *head = NULL, *node;
- char *id, *word;
-
- if (in == NULL || in[0] == '\0')
- return NULL;
-
- while (*inptr) {
- header_decode_lwsp(&inptr);
- if (*inptr == '<') {
- id = header_msgid_decode_internal(&inptr);
- if (id) {
- node = g_malloc(sizeof(*node));
- node->next = head;
- head = node;
- node->id = id;
- }
- } else {
- word = header_decode_word(&inptr);
- if (word)
- g_free (word);
- else if (*inptr != '\0')
- inptr++; /* Stupid mailer tricks */
- }
- }
-
- return head;
-}
-
-struct _header_references *
-header_references_dup(const struct _header_references *list)
-{
- struct _header_references *new = NULL, *tmp;
-
- while (list) {
- tmp = g_new(struct _header_references, 1);
- tmp->next = new;
- tmp->id = g_strdup(list->id);
- new = tmp;
- list = list->next;
- }
- return new;
-}
-
-struct _header_address *
-header_mailbox_decode(const char *in)
-{
- if (in == NULL)
- return NULL;
-
- return header_decode_mailbox(&in);
-}
-
-struct _header_address *
-header_address_decode(const char *in)
-{
- const char *inptr = in, *last;
- struct _header_address *list = NULL, *addr;
-
- d(printf("decoding To: '%s'\n", in));
-
- if (in == NULL)
- return NULL;
-
- do {
- last = inptr;
- addr = header_decode_address(&inptr);
- if (addr)
- header_address_list_append(&list, addr);
- header_decode_lwsp(&inptr);
- if (*inptr == ',')
- inptr++;
- else
- break;
- } while (inptr != last);
-
- if (*inptr) {
- w(g_warning("Invalid input detected at %c (%d): %s\n or at: %s", *inptr, inptr-in, in, inptr));
- }
-
- if (inptr == last) {
- w(g_warning("detected invalid input loop at : %s", last));
- }
-
- return list;
-}
-
-void
-header_mime_decode(const char *in, int *maj, int *min)
-{
- const char *inptr = in;
- int major=-1, minor=-1;
-
- d(printf("decoding MIME-Version: '%s'\n", in));
-
- if (in != NULL) {
- header_decode_lwsp(&inptr);
- if (isdigit(*inptr)) {
- major = header_decode_int(&inptr);
- header_decode_lwsp(&inptr);
- if (*inptr == '.') {
- inptr++;
- header_decode_lwsp(&inptr);
- if (isdigit(*inptr))
- minor = header_decode_int(&inptr);
- }
- }
- }
-
- if (maj)
- *maj = major;
- if (min)
- *min = minor;
-
- d(printf("major = %d, minor = %d\n", major, minor));
-}
-
-static struct _header_param *
-header_decode_param_list(const char **in)
-{
- const char *inptr = *in;
- struct _header_param *head = NULL, *tail = NULL;
- gboolean last_was_rfc2184 = FALSE;
- gboolean is_rfc2184 = FALSE;
-
- header_decode_lwsp (&inptr);
-
- while (*inptr == ';') {
- char *param, *value;
- struct _header_param *p;
-
- inptr++;
- /* invalid format? */
- if (header_decode_param (&inptr, &param, &value, &is_rfc2184) != 0)
- break;
-
- if (is_rfc2184 && tail && !g_strcasecmp (param, tail->name)) {
- /* rfc2184 allows a parameter to be broken into multiple parts
- * and it looks like we've found one. Append this value to the
- * last value.
- */
- GString *gvalue;
-
- gvalue = g_string_new (tail->value);
- g_string_append (gvalue, value);
- g_free (tail->value);
- g_free (value);
-
- tail->value = gvalue->str;
- g_string_free (gvalue, FALSE);
- } else {
- if (last_was_rfc2184) {
- /* We've finished gathering the values for the last param
- * so it is now safe to decode it.
- */
- char *val;
-
- val = rfc2184_decode (tail->value, strlen (tail->value));
- g_free (tail->value);
- tail->value = val;
- }
-
- p = g_malloc (sizeof (struct _header_param));
- p->name = param;
- p->value = value;
- p->next = NULL;
- if (head == NULL)
- head = p;
- if (tail)
- tail->next = p;
- tail = p;
- }
-
- last_was_rfc2184 = is_rfc2184;
-
- header_decode_lwsp (&inptr);
- }
-
- if (last_was_rfc2184) {
- /* We've finished gathering the values for the last param
- * so it is now safe to decode it.
- */
- char *val;
-
- val = rfc2184_decode (tail->value, strlen (tail->value));
- g_free (tail->value);
- tail->value = val;
- }
-
- *in = inptr;
- return head;
-}
-
-struct _header_param *
-header_param_list_decode(const char *in)
-{
- if (in == NULL)
- return NULL;
-
- return header_decode_param_list(&in);
-}
-
-/* FIXME: I wrote this in a quick & dirty fasion - it may not be 100% correct */
-static char *
-header_encode_param (const unsigned char *in, gboolean *encoded)
-{
- const unsigned char *inptr = in;
- char *outstr, *charset;
- int encoding;
- GString *out;
-
- *encoded = FALSE;
-
- g_return_val_if_fail (g_utf8_validate (in, -1, NULL), NULL);
-
- if (in == NULL)
- return NULL;
-
- /* do a quick us-ascii check (the common case?) */
- while (*inptr) {
- if (*inptr > 127)
- break;
- inptr++;
- }
-
- if (*inptr == '\0')
- return g_strdup (in);
-
- out = g_string_new ("");
- inptr = in;
- encoding = 0;
- while (inptr && *inptr) {
- gunichar c;
- const char *newinptr;
-
- newinptr = g_utf8_next_char (inptr);
- c = g_utf8_get_char (inptr);
- if (newinptr == NULL || !g_unichar_validate (c)) {
- w(g_warning ("Invalid UTF-8 sequence encountered (pos %d, char '%c'): %s",
- (inptr-in), inptr[0], in));
- inptr++;
- continue;
- }
-
- if (c > 127 && c < 256) {
- encoding = MAX (encoding, 1);
- g_string_sprintfa (out, "%%%c%c", tohex[(c >> 4) & 0xf], tohex[c & 0xf]);
- } else if (c >= 256) {
- encoding = MAX (encoding, 2);
- g_string_sprintfa (out, "%%%c%c", tohex[(c >> 4) & 0xf], tohex[c & 0xf]);
- } else if (is_lwsp (c) || camel_mime_special_table[c] & IS_ESAFE) {
- g_string_sprintfa (out, "%%%c%c", tohex[(c >> 4) & 0xf], tohex[c & 0xf]);
- } else {
- g_string_append_c (out, c);
- }
-
- inptr = newinptr;
- }
-
- switch (encoding) {
- default:
- g_string_prepend (out, "iso-8859-1''");
- break;
- case 2:
- charset = g_strdup_printf ("%s''", camel_charset_best (in, inptr - in));
- g_string_prepend (out, charset);
- g_free (charset);
- break;
- }
-
- outstr = out->str;
- g_string_free (out, FALSE);
- *encoded = TRUE;
-
- return outstr;
-}
-
-void
-header_param_list_format_append(GString *out, struct _header_param *p)
-{
- int len = out->len;
-
- while (p) {
- gboolean encoded = FALSE;
- char *value, *ch = NULL;
- int here = out->len;
-
- value = header_encode_param (p->value, &encoded);
-
- if (!encoded) {
- for (ch = value; *ch; ch++) {
- if (is_tspecial (*ch) || is_lwsp (*ch))
- break;
- }
- }
-
- if (len + strlen (p->name) + strlen (value) > 60) {
- out = g_string_append (out, ";\n\t");
- len = 0;
- } else
- out = g_string_append (out, "; ");
-
- g_string_sprintfa (out, "%s%s=", p->name, encoded ? "*" : "");
-
- if (!ch || !*ch)
- g_string_append (out, value);
- else
- quote_word (out, TRUE, value, strlen (value));
-
- g_free (value);
-
- len += (out->len - here);
- p = p->next;
- }
-}
-
-char *
-header_param_list_format(struct _header_param *p)
-{
- GString *out = g_string_new("");
- char *ret;
-
- header_param_list_format_append(out, p);
- ret = out->str;
- g_string_free(out, FALSE);
- return ret;
-}
-
-struct _header_content_type *
-header_content_type_decode(const char *in)
-{
- const char *inptr = in;
- char *type, *subtype = NULL;
- struct _header_content_type *t = NULL;
-
- if (in==NULL)
- return NULL;
-
- type = decode_token(&inptr);
- header_decode_lwsp(&inptr);
- if (type) {
- if (*inptr == '/') {
- inptr++;
- subtype = decode_token(&inptr);
- }
- if (subtype == NULL && (!strcasecmp(type, "text"))) {
- w(g_warning("text type with no subtype, resorting to text/plain: %s", in));
- subtype = g_strdup("plain");
- }
- if (subtype == NULL) {
- w(g_warning("MIME type with no subtype: %s", in));
- }
-
- t = header_content_type_new(type, subtype);
- t->params = header_decode_param_list(&inptr);
- g_free(type);
- g_free(subtype);
- } else {
- g_free(type);
- d(printf("cannot find MIME type in header (2) '%s'", in));
- }
- return t;
-}
-
-void
-header_content_type_dump(struct _header_content_type *ct)
-{
- struct _header_param *p;
-
- printf("Content-Type: ");
- if (ct==NULL) {
- printf("<NULL>\n");
- return;
- }
- printf("%s / %s", ct->type, ct->subtype);
- p = ct->params;
- if (p) {
- while (p) {
- printf(";\n\t%s=\"%s\"", p->name, p->value);
- p = p->next;
- }
- }
- printf("\n");
-}
-
-char *
-header_content_type_format(struct _header_content_type *ct)
-{
- GString *out;
- char *ret;
-
- if (ct==NULL)
- return NULL;
-
- out = g_string_new("");
- if (ct->type == NULL) {
- g_string_sprintfa(out, "text/plain");
- w(g_warning("Content-Type with no main type"));
- } else if (ct->subtype == NULL) {
- w(g_warning("Content-Type with no sub type: %s", ct->type));
- if (!strcasecmp(ct->type, "multipart"))
- g_string_sprintfa(out, "%s/mixed", ct->type);
- else
- g_string_sprintfa(out, "%s", ct->type);
- } else {
- g_string_sprintfa(out, "%s/%s", ct->type, ct->subtype);
- }
- header_param_list_format_append(out, ct->params);
-
- ret = out->str;
- g_string_free(out, FALSE);
- return ret;
-}
-
-char *
-header_content_type_simple(struct _header_content_type *ct)
-{
- return g_strdup_printf("%s/%s", ct->type, ct->subtype);
-}
-
-char *
-header_content_encoding_decode(const char *in)
-{
- if (in)
- return decode_token(&in);
- return NULL;
-}
-
-CamelMimeDisposition *header_disposition_decode(const char *in)
-{
- CamelMimeDisposition *d = NULL;
- const char *inptr = in;
-
- if (in == NULL)
- return NULL;
-
- d = g_malloc(sizeof(*d));
- d->refcount = 1;
- d->disposition = decode_token(&inptr);
- if (d->disposition == NULL)
- w(g_warning("Empty disposition type"));
- d->params = header_decode_param_list(&inptr);
- return d;
-}
-
-void header_disposition_ref(CamelMimeDisposition *d)
-{
- if (d)
- d->refcount++;
-}
-void header_disposition_unref(CamelMimeDisposition *d)
-{
- if (d) {
- if (d->refcount<=1) {
- header_param_list_free(d->params);
- g_free(d->disposition);
- g_free(d);
- } else {
- d->refcount--;
- }
- }
-}
-
-char *header_disposition_format(CamelMimeDisposition *d)
-{
- GString *out;
- char *ret;
-
- if (d==NULL)
- return NULL;
-
- out = g_string_new("");
- if (d->disposition)
- out = g_string_append(out, d->disposition);
- else
- out = g_string_append(out, "attachment");
- header_param_list_format_append(out, d->params);
-
- ret = out->str;
- g_string_free(out, FALSE);
- return ret;
-}
-
-/* hrm, is there a library for this shit? */
-static struct {
- char *name;
- int offset;
-} tz_offsets [] = {
- { "UT", 0 },
- { "GMT", 0 },
- { "EST", -500 }, /* these are all US timezones. bloody yanks */
- { "EDT", -400 },
- { "CST", -600 },
- { "CDT", -500 },
- { "MST", -700 },
- { "MDT", -600 },
- { "PST", -800 },
- { "PDT", -700 },
- { "Z", 0 },
- { "A", -100 },
- { "M", -1200 },
- { "N", 100 },
- { "Y", 1200 },
-};
-
-static char *tz_months [] = {
- "Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
-};
-
-char *
-header_format_date(time_t time, int offset)
-{
- struct tm tm;
-
- d(printf("offset = %d\n", offset));
-
- d(printf("converting date %s", ctime(&time)));
-
- time += ((offset / 100) * (60*60)) + (offset % 100)*60;
-
- d(printf("converting date %s", ctime(&time)));
-
- memcpy(&tm, gmtime(&time), sizeof(tm));
-
- return g_strdup_printf("%02d %s %04d %02d:%02d:%02d %+05d",
- tm.tm_mday, tz_months[tm.tm_mon],
- tm.tm_year + 1900,
- tm.tm_hour, tm.tm_min, tm.tm_sec,
- offset);
-}
-
-/* convert a date to time_t representation */
-/* this is an awful mess oh well */
-time_t
-header_decode_date(const char *in, int *saveoffset)
-{
- const char *inptr = in;
- char *monthname;
- int year, offset = 0;
- struct tm tm;
- int i;
- time_t t;
-
- if (in == NULL) {
- if (saveoffset)
- *saveoffset = 0;
- return 0;
- }
-
- d(printf ("\ndecoding date '%s'\n", inptr));
-
- memset (&tm, 0, sizeof(tm));
-
- header_decode_lwsp (&inptr);
- if (!isdigit (*inptr)) {
- char *day = decode_token (&inptr);
- /* we dont really care about the day, it's only for display */
- if (day) {
- d(printf ("got day: %s\n", day));
- g_free (day);
- header_decode_lwsp (&inptr);
- if (*inptr == ',') {
- inptr++;
- } else {
-#ifndef CLEAN_DATE
- char *newdate;
-
- w(g_warning("day not followed by ',' it's probably a broken mail client, so we'll ignore its date entirely"));
- w(printf ("Giving it one last chance...\n"));
- newdate = parse_broken_date (in);
- if (newdate) {
- w(printf ("Got: %s\n", newdate));
- t = header_decode_date (newdate, saveoffset);
- g_free (newdate);
- return t;
- }
-#endif
- if (saveoffset)
- *saveoffset = 0;
- return 0;
- }
- }
- }
- tm.tm_mday = header_decode_int(&inptr);
- monthname = decode_token(&inptr);
- if (monthname) {
- for (i=0;i<sizeof(tz_months)/sizeof(tz_months[0]);i++) {
- if (!strcasecmp(tz_months[i], monthname)) {
- tm.tm_mon = i;
- break;
- }
- }
- g_free(monthname);
- }
- year = header_decode_int(&inptr);
- if (year < 69 || (year >= 100 && year < 1900)) {
- tm.tm_year = 100 + year;
- } else if (year < 100) {
- tm.tm_year = year;
- } else {
- tm.tm_year = year - 1900;
- }
- /* get the time ... yurck */
- tm.tm_hour = header_decode_int(&inptr);
- header_decode_lwsp(&inptr);
- if (*inptr == ':')
- inptr++;
- tm.tm_min = header_decode_int(&inptr);
- header_decode_lwsp(&inptr);
- if (*inptr == ':')
- inptr++;
- tm.tm_sec = header_decode_int(&inptr);
- header_decode_lwsp(&inptr);
- if (*inptr == '+'
- || *inptr == '-') {
- offset = (*inptr++)=='-'?-1:1;
- offset = offset * header_decode_int(&inptr);
- d(printf("abs signed offset = %d\n", offset));
- } else if (isdigit(*inptr)) {
- offset = header_decode_int(&inptr);
- d(printf("abs offset = %d\n", offset));
- } else {
- char *tz = decode_token(&inptr);
-
- if (tz) {
- for (i=0;i<sizeof(tz_offsets)/sizeof(tz_offsets[0]);i++) {
- if (!strcasecmp(tz_offsets[i].name, tz)) {
- offset = tz_offsets[i].offset;
- break;
- }
- }
- g_free(tz);
- }
- /* some broken mailers seem to put in things like GMT+1030 instead of just +1030 */
- header_decode_lwsp(&inptr);
- if (*inptr == '+' || *inptr == '-') {
- int sign = (*inptr++)=='-'?-1:1;
- offset = offset + (header_decode_int(&inptr)*sign);
- }
- d(printf("named offset = %d\n", offset));
- }
-
- t = mktime(&tm);
-#if defined(HAVE_TIMEZONE)
- t -= timezone;
-#elif defined(HAVE_TM_GMTOFF)
- t += tm.tm_gmtoff;
-#else
-#error Neither HAVE_TIMEZONE nor HAVE_TM_GMTOFF defined. Rerun autoheader, autoconf, etc.
-#endif
-
- /* t is now GMT of the time we want, but not offset by the timezone ... */
-
- d(printf(" gmt normalized? = %s\n", ctime(&t)));
-
- /* this should convert the time to the GMT equiv time */
- t -= ( (offset/100) * 60*60) + (offset % 100)*60;
-
- d(printf(" gmt normalized for timezone? = %s\n", ctime(&t)));
-
- d({
- char *tmp;
- tmp = header_format_date(t, offset);
- printf(" encoded again: %s\n", tmp);
- g_free(tmp);
- });
-
- if (saveoffset)
- *saveoffset = offset;
-
- return t;
-}
-
-char *
-header_location_decode(const char *in)
-{
- const char *p;
-
- /* Sigh. RFC2557 says:
- * content-location = "Content-Location:" [CFWS] URI [CFWS]
- * where URI is restricted to the syntax for URLs as
- * defined in Uniform Resource Locators [URL] until
- * IETF specifies other kinds of URIs.
- *
- * But Netscape puts quotes around the URI when sending web
- * pages.
- */
-
- header_decode_lwsp(&in);
- if (*in == '"')
- return header_decode_quoted_string(&in);
- else {
- for (p = in; *p && !is_lwsp(*p); p++)
- ;
- return g_strndup(in, p - in);
- }
-}
-
-
-/* extra rfc checks */
-#define CHECKS
-
-#ifdef CHECKS
-static void
-check_header(struct _header_raw *h)
-{
- unsigned char *p;
-
- p = h->value;
- while (p && *p) {
- if (!isascii(*p)) {
- w(g_warning("Appending header violates rfc: %s: %s", h->name, h->value));
- return;
- }
- p++;
- }
-}
-#endif
-
-void
-header_raw_append_parse(struct _header_raw **list, const char *header, int offset)
-{
- register const char *in;
- int fieldlen;
- char *name;
-
- in = header;
- while (is_fieldname(*in) || *in==':')
- in++;
- fieldlen = in-header-1;
- while (is_lwsp(*in))
- in++;
- if (fieldlen == 0 || header[fieldlen] != ':') {
- printf("Invalid header line: '%s'\n", header);
- return;
- }
- name = alloca(fieldlen+1);
- memcpy(name, header, fieldlen);
- name[fieldlen] = 0;
-
- header_raw_append(list, name, in, offset);
-}
-
-void
-header_raw_append(struct _header_raw **list, const char *name, const char *value, int offset)
-{
- struct _header_raw *l, *n;
-
- d(printf("Header: %s: %s\n", name, value));
-
- n = g_malloc(sizeof(*n));
- n->next = NULL;
- n->name = g_strdup(name);
- n->value = g_strdup(value);
- n->offset = offset;
-#ifdef CHECKS
- check_header(n);
-#endif
- l = (struct _header_raw *)list;
- while (l->next) {
- l = l->next;
- }
- l->next = n;
-
- /* debug */
-#if 0
- if (!strcasecmp(name, "To")) {
- printf("- Decoding To\n");
- header_to_decode(value);
- } else if (!strcasecmp(name, "Content-type")) {
- printf("- Decoding content-type\n");
- header_content_type_dump(header_content_type_decode(value));
- } else if (!strcasecmp(name, "MIME-Version")) {
- printf("- Decoding mime version\n");
- header_mime_decode(value);
- }
-#endif
-}
-
-static struct _header_raw *
-header_raw_find_node(struct _header_raw **list, const char *name)
-{
- struct _header_raw *l;
-
- l = *list;
- while (l) {
- if (!strcasecmp(l->name, name))
- break;
- l = l->next;
- }
- return l;
-}
-
-const char *
-header_raw_find(struct _header_raw **list, const char *name, int *offset)
-{
- struct _header_raw *l;
-
- l = header_raw_find_node(list, name);
- if (l) {
- if (offset)
- *offset = l->offset;
- return l->value;
- } else
- return NULL;
-}
-
-const char *
-header_raw_find_next(struct _header_raw **list, const char *name, int *offset, const char *last)
-{
- struct _header_raw *l;
-
- if (last == NULL || name == NULL)
- return NULL;
-
- l = *list;
- while (l && l->value != last)
- l = l->next;
- return header_raw_find(&l, name, offset);
-}
-
-static void
-header_raw_free(struct _header_raw *l)
-{
- g_free(l->name);
- g_free(l->value);
- g_free(l);
-}
-
-void
-header_raw_remove(struct _header_raw **list, const char *name)
-{
- struct _header_raw *l, *p;
-
- /* the next pointer is at the head of the structure, so this is safe */
- p = (struct _header_raw *)list;
- l = *list;
- while (l) {
- if (!strcasecmp(l->name, name)) {
- p->next = l->next;
- header_raw_free(l);
- l = p->next;
- } else {
- p = l;
- l = l->next;
- }
- }
-}
-
-void
-header_raw_replace(struct _header_raw **list, const char *name, const char *value, int offset)
-{
- header_raw_remove(list, name);
- header_raw_append(list, name, value, offset);
-}
-
-void
-header_raw_clear(struct _header_raw **list)
-{
- struct _header_raw *l, *n;
- l = *list;
- while (l) {
- n = l->next;
- header_raw_free(l);
- l = n;
- }
- *list = NULL;
-}
-
-char *
-header_msgid_generate (void)
-{
- char host[MAXHOSTNAMELEN];
-#ifdef ENABLE_THREADS
- static pthread_mutex_t count_lock = PTHREAD_MUTEX_INITIALIZER;
-#define COUNT_LOCK() pthread_mutex_lock (&count_lock)
-#define COUNT_UNLOCK() pthread_mutex_unlock (&count_lock)
-#else
-#define COUNT_LOCK()
-#define COUNT_UNLOCK()
-#endif /* ENABLE_THREADS */
- static gint count = 0;
- gint hrv;
- char *ret;
-
- hrv = gethostname (host, sizeof (host));
-
- COUNT_LOCK ();
- ret = g_strdup_printf ("%d.%d.%d.camel@%s", (gint) time (NULL), getpid (), count++,
- (hrv == 0 && host && *host) ? host : "unknown.host");
- COUNT_UNLOCK ();
-
- return ret;
-}
-
-
-static struct {
- char *name;
- char *pattern;
-} mail_list_magic[] = {
- { "Sender", " *owner-([^@]+)" },
- { "Return-Path", " *owner-([^@]+)" },
- { "X-BeenThere", " *([^@]+)" },
- { "Delivered-To", " *mailing list ([^@]+)" },
- { "X-Mailing-List", " *([^@]+)" },
- { "X-Loop", " *([^@]+)" },
- { "List-Id", " *([^<]+)" },
- { "Mailing-List", " *list ([^@]+)" },
-};
-
-char *
-header_raw_check_mailing_list(struct _header_raw **list)
-{
- const char *v;
- regex_t pattern;
- regmatch_t match[2];
- int i, errcode;
-
- for (i = 0; i < sizeof (mail_list_magic) / sizeof (mail_list_magic[0]); i++) {
- if ((errcode = regcomp (&pattern, mail_list_magic[i].pattern, REG_EXTENDED|REG_ICASE)) != 0) {
- char *errstr;
- size_t len;
-
- len = regerror (errcode, &pattern, NULL, 0);
- errstr = g_malloc0 (len + 1);
- regerror (errcode, &pattern, errstr, len);
-
- g_warning ("Internal error, compiling regex failed: %s: %s",
- mail_list_magic[i].pattern, errstr);
- g_free (errstr);
-
- continue;
- }
-
- v = header_raw_find (list, mail_list_magic[i].name, NULL);
- if (v != NULL && regexec (&pattern, v, 2, match, 0) == 0 && match[1].rm_so != -1) {
- const char *mlist, *mlend;
-
- regfree (&pattern);
- mlist = v + match[1].rm_so;
- mlend = v + match[1].rm_eo;
- if (*mlist == '<')
- mlist++;
-
- return g_strndup (mlist, mlend - mlist);
- }
- regfree (&pattern);
- }
-
- return NULL;
-}
-
-/* ok, here's the address stuff, what a mess ... */
-struct _header_address *header_address_new(void)
-{
- struct _header_address *h;
- h = g_malloc0(sizeof(*h));
- h->type = HEADER_ADDRESS_NONE;
- h->refcount = 1;
- return h;
-}
-
-struct _header_address *header_address_new_name(const char *name, const char *addr)
-{
- struct _header_address *h;
-
- h = header_address_new();
- h->type = HEADER_ADDRESS_NAME;
- h->name = g_strdup(name);
- h->v.addr = g_strdup(addr);
- return h;
-}
-
-struct _header_address *header_address_new_group(const char *name)
-{
- struct _header_address *h;
-
- h = header_address_new();
- h->type = HEADER_ADDRESS_GROUP;
- h->name = g_strdup(name);
- return h;
-}
-
-void header_address_ref(struct _header_address *h)
-{
- if (h)
- h->refcount++;
-}
-
-void header_address_unref(struct _header_address *h)
-{
- if (h) {
- if (h->refcount <= 1) {
- if (h->type == HEADER_ADDRESS_GROUP) {
- header_address_list_clear(&h->v.members);
- } else if (h->type == HEADER_ADDRESS_NAME) {
- g_free(h->v.addr);
- }
- g_free(h->name);
- g_free(h);
- } else {
- h->refcount--;
- }
- }
-}
-
-void header_address_set_name(struct _header_address *h, const char *name)
-{
- if (h) {
- g_free(h->name);
- h->name = g_strdup(name);
- }
-}
-
-void header_address_set_addr(struct _header_address *h, const char *addr)
-{
- if (h) {
- if (h->type == HEADER_ADDRESS_NAME
- || h->type == HEADER_ADDRESS_NONE) {
- h->type = HEADER_ADDRESS_NAME;
- g_free(h->v.addr);
- h->v.addr = g_strdup(addr);
- } else {
- g_warning("Trying to set the address on a group");
- }
- }
-}
-
-void header_address_set_members(struct _header_address *h, struct _header_address *group)
-{
- if (h) {
- if (h->type == HEADER_ADDRESS_GROUP
- || h->type == HEADER_ADDRESS_NONE) {
- h->type = HEADER_ADDRESS_GROUP;
- header_address_list_clear(&h->v.members);
- /* should this ref them? */
- h->v.members = group;
- } else {
- g_warning("Trying to set the members on a name, not group");
- }
- }
-}
-
-void header_address_add_member(struct _header_address *h, struct _header_address *member)
-{
- if (h) {
- if (h->type == HEADER_ADDRESS_GROUP
- || h->type == HEADER_ADDRESS_NONE) {
- h->type = HEADER_ADDRESS_GROUP;
- header_address_list_append(&h->v.members, member);
- }
- }
-}
-
-void header_address_list_append_list(struct _header_address **l, struct _header_address **h)
-{
- if (l) {
- struct _header_address *n = (struct _header_address *)l;
-
- while (n->next)
- n = n->next;
- n->next = *h;
- }
-}
-
-
-void header_address_list_append(struct _header_address **l, struct _header_address *h)
-{
- if (h) {
- header_address_list_append_list(l, &h);
- h->next = NULL;
- }
-}
-
-void header_address_list_clear(struct _header_address **l)
-{
- struct _header_address *a, *n;
- a = *l;
- while (a) {
- n = a->next;
- header_address_unref(a);
- a = n;
- }
- *l = NULL;
-}
-
-/* if encode is true, then the result is suitable for mailing, otherwise
- the result is suitable for display only (and may not even be re-parsable) */
-static void
-header_address_list_encode_append(GString *out, int encode, struct _header_address *a)
-{
- char *text;
-
- while (a) {
- switch (a->type) {
- case HEADER_ADDRESS_NAME:
- if (encode)
- text = header_encode_phrase (a->name);
- else
- text = a->name;
- if (text && *text)
- g_string_sprintfa(out, "%s <%s>", text, a->v.addr);
- else
- g_string_append(out, a->v.addr);
- if (encode)
- g_free(text);
- break;
- case HEADER_ADDRESS_GROUP:
- if (encode)
- text = header_encode_phrase(a->name);
- else
- text = a->name;
- g_string_sprintfa(out, "%s: ", text);
- header_address_list_encode_append(out, encode, a->v.members);
- g_string_sprintfa(out, ";");
- if (encode)
- g_free(text);
- break;
- default:
- g_warning("Invalid address type");
- break;
- }
- a = a->next;
- if (a)
- g_string_append(out, ", ");
- }
-}
-
-char *
-header_address_list_encode(struct _header_address *a)
-{
- GString *out;
- char *ret;
-
- if (a == NULL)
- return NULL;
-
- out = g_string_new("");
-
- header_address_list_encode_append(out, TRUE, a);
- ret = out->str;
- g_string_free(out, FALSE);
- return ret;
-}
-
-char *
-header_address_list_format(struct _header_address *a)
-{
- GString *out;
- char *ret;
-
- if (a == NULL)
- return NULL;
-
- out = g_string_new("");
-
- header_address_list_encode_append(out, FALSE, a);
- ret = out->str;
- g_string_free(out, FALSE);
- return ret;
-}
-
-#if 0
-static const char *
-header_fold_next_space (const char *in)
-{
- register const char *inptr = in;
- gboolean escaped = FALSE;
-
- if (is_lwsp (*inptr))
- return inptr;
-
- do {
- if (*inptr == '\\') {
- escaped = TRUE;
- } else if (*inptr == '"' && !escaped) {
- /* find the end of this quoted section */
- for (inptr++; *inptr; inptr++) {
- if (*inptr == '"' && *(inptr-1) != '\\')
- break;
- }
- } else {
- escaped = FALSE;
- }
-
- inptr++;
- } while (*inptr && !is_lwsp (*inptr));
-
- if (*inptr)
- return inptr;
- else
- return NULL;
-}
-
-/* I wonder if this might be better for folding headers? */
-char *
-header_fold (const char *in, int headerlen, gboolean force)
-{
- const char *inptr = in, *space, *p, *n;
- gboolean needunfold = FALSE;
- int len, outlen, i;
- GString *out;
- char *ret;
-
- if (in == NULL)
- return NULL;
-
- /* first, check to see if we even need to fold */
- len = headerlen + 2;
- p = in;
- while (*p) {
- n = strchr (p, '\n');
- if (n == NULL)
- n = p + strlen (p);
- else
- needunfold = TRUE;
-
- len += n - p;
-
- if (len >= CAMEL_FOLD_SIZE)
- break;
- len = 0;
- p = n + 1;
- }
-
- if (len < CAMEL_FOLD_SIZE)
- return g_strdup (in);
-
- /* we need to fold, so first unfold (if we need to), then process */
- if (needunfold)
- inptr = in = header_unfold (in);
-
- out = g_string_new ("");
- outlen = headerlen + 2;
- while (*inptr) {
- if (force)
- space = strchr (inptr, ' ');
- else
- space = header_fold_next_space (inptr);
-
- if (space) {
- len = space - inptr + 1;
- } else {
- len = strlen (inptr);
- }
-
- d(printf ("next word '%.*s'\n", len, inptr));
-
- if (outlen + len > CAMEL_FOLD_SIZE) {
- d(printf("outlen = %d wordlen = %d\n", outlen, len));
- /* strip trailing space */
- if (out->len > 0 && out->str[out->len-1] == ' ')
- g_string_truncate (out, out->len-1);
- g_string_append (out, "\n\t");
- outlen = 1;
-
- if (force) {
- /* check for very long words, just cut them up */
- while (outlen + len > CAMEL_FOLD_SIZE) {
- for (i = 0; i < CAMEL_FOLD_SIZE - outlen; i++)
- g_string_append_c (out, inptr[i]);
- inptr += CAMEL_FOLD_SIZE - outlen;
- len -= CAMEL_FOLD_SIZE - outlen;
- g_string_append (out, "\n\t");
- outlen = 1;
- }
- }
- }
-
- outlen += len;
-
- for (i = 0; i < len; i++)
- g_string_append_c (out, inptr[i]);
-
- inptr += len;
- }
-
- ret = out->str;
- g_string_free (out, FALSE);
-
- if (needunfold)
- g_free ((char *)in);
-
- return ret;
-}
-#endif
-
-
-/* simple header folding */
-/* will work even if the header is already folded */
-char *
-header_fold(const char *in, int headerlen)
-{
- int len, outlen, i;
- const char *inptr = in, *space, *p, *n;
- GString *out;
- char *ret;
- int needunfold = FALSE;
-
- if (in == NULL)
- return NULL;
-
- /* first, check to see if we even need to fold */
- len = headerlen + 2;
- p = in;
- while (*p) {
- n = strchr(p, '\n');
- if (n == NULL) {
- len += strlen (p);
- break;
- }
-
- needunfold = TRUE;
- len += n-p;
-
- if (len >= CAMEL_FOLD_SIZE)
- break;
- len = 0;
- p = n + 1;
- }
- if (len < CAMEL_FOLD_SIZE)
- return g_strdup(in);
-
- /* we need to fold, so first unfold (if we need to), then process */
- if (needunfold)
- inptr = in = header_unfold(in);
-
- out = g_string_new("");
- outlen = headerlen+2;
- while (*inptr) {
- space = strchr(inptr, ' ');
- if (space) {
- len = space-inptr+1;
- } else {
- len = strlen(inptr);
- }
- d(printf("next word '%.*s'\n", len, inptr));
- if (outlen + len > CAMEL_FOLD_SIZE) {
- d(printf("outlen = %d wordlen = %d\n", outlen, len));
- /* strip trailing space */
- if (out->len > 0 && out->str[out->len-1] == ' ')
- g_string_truncate(out, out->len-1);
- g_string_append(out, "\n\t");
- outlen = 1;
- /* check for very long words, just cut them up */
- while (outlen+len > CAMEL_FOLD_SIZE) {
- for (i=0;i<CAMEL_FOLD_SIZE-outlen;i++)
- g_string_append_c(out, inptr[i]);
- inptr += CAMEL_FOLD_SIZE-outlen;
- len -= CAMEL_FOLD_SIZE-outlen;
- g_string_append(out, "\n\t");
- outlen = 1;
- }
- }
- outlen += len;
- for (i=0;i<len;i++) {
- g_string_append_c(out, inptr[i]);
- }
- inptr += len;
- }
- ret = out->str;
- g_string_free(out, FALSE);
-
- if (needunfold)
- g_free((char *)in);
-
- return ret;
-}
-
-char *
-header_unfold(const char *in)
-{
- char *out = g_malloc(strlen(in)+1);
- const char *inptr = in;
- char c, *o = out;
-
- o = out;
- while ((c = *inptr++)) {
- if (c == '\n') {
- if (is_lwsp(*inptr)) {
- do {
- inptr++;
- } while (is_lwsp(*inptr));
- *o++ = ' ';
- } else {
- *o++ = c;
- }
- } else {
- *o++ = c;
- }
- }
- *o = 0;
-
- return out;
-}
-
-#ifdef BUILD_TABLE
-
-/* for debugging tests */
-/* should also have some regression tests somewhere */
-
-void test_phrase(const char *in)
-{
- printf("'%s' -> '%s'\n", in, header_encode_phrase(in));
-}
-
-void test_fold(const char *in)
-{
- printf("'%s'\n ->\n '%s'\n", in, header_fold(in));
-}
-
-void run_test(void)
-{
- char *to = "gnome hacker dudes: license-discuss@opensource.org,
- \"Richard M. Stallman\" <rms@gnu.org>,
- Barry Chester <barry_che@antdiv.gov.au>,
- Michael Zucchi <zucchi.michael(this (is a nested) comment)@zedzone.mmc.com.au>,
- Miguel de Icaza <miguel@gnome.org>;,
- zucchi@zedzone.mmc.com.au, \"Foo bar\" <zed@zedzone>,
- <frob@frobzone>";
-
-#if 0
- header_to_decode(to);
-
- header_mime_decode("1.0", 0, 0);
- header_mime_decode("1.3 (produced by metasend V1.0)", 0, 0);
- header_mime_decode("(produced by metasend V1.0) 5.2", 0, 0);
- header_mime_decode("7(produced by metasend 1.0) . (produced by helix/send/1.0) 9 . 5", 0, 0);
- header_mime_decode("3.", 0, 0);
- header_mime_decode(".", 0, 0);
- header_mime_decode(".5", 0, 0);
- header_mime_decode("c.d", 0, 0);
- header_mime_decode("", 0, 0);
-
- header_msgid_decode(" <\"L3x2i1.0.Nm5.Xd-Wu\"@lists.redhat.com>");
- header_msgid_decode("<200001180446.PAA02065@beaker.htb.com.au>");
-#endif
-
- test_fold("Header: This is a long header that should be folded properly at the right place, or so i hope. I should probably set the fold value to something lower for testing");
- test_fold("Header: nowletstryfoldingsomethingthatistoolongtofold,iwonderwhatitshoulddointsteadtofoldit?hmm,iguessicanjusttruncateitatsomepointortrytorefoldthepreviousstuff(yuck)tofit");
- test_phrase("Michael Zucchi (NotZed)");
- test_phrase("Zucchi, ( \\ NotZed \\ ) Michael");
- {
- int ic;
- char *outbuf, *inbuf, buffer[256];
- int inlen, outlen;
-
- outlen = 256;
- inbuf = "Dra¾en Kaèar";
- inlen = strlen(inbuf);
- outbuf = buffer;
- ic = iconv_open("UTF-8", "ISO-8859-1");
- iconv(ic, &inbuf, &inlen, &outbuf, &outlen);
- test_phrase(buffer);
-
- outlen = 256;
- inbuf = "This is an encoded phrase Tomasz K³oczko";
- inlen = strlen(inbuf);
- outbuf = buffer;
- ic = iconv_open("UTF-8", "ISO-8859-2");
- iconv(ic, &inbuf, &inlen, &outbuf, &outlen);
- test_phrase(buffer);
-
- }
-
- {
- char *str = "Blah blah\n\t = ? =? ?= This is a TEST For quoted-printable-encoding-encoding-of
- long lines, and lines that end in spaces
- and line sthat end in tabs
- And lines that just end.";
-
- char encoded[256];
- int state=-1,save=0;
- int len;
-
- len = quoted_encode_step(str, strlen(str), encoded, &state, &save);
- len += quoted_encode_close("", 0, encoded+len, &state, &save);
- printf("encoded = '%.*s'\n", len, encoded);
- }
-}
-
-#endif /* BUILD_TABLE */
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