diff options
Diffstat (limited to 'camel/camel-mime-filter-tohtml.c')
| -rw-r--r-- | camel/camel-mime-filter-tohtml.c | 520 |
1 files changed, 0 insertions, 520 deletions
diff --git a/camel/camel-mime-filter-tohtml.c b/camel/camel-mime-filter-tohtml.c deleted file mode 100644 index 22dc3ff737..0000000000 --- a/camel/camel-mime-filter-tohtml.c +++ /dev/null @@ -1,520 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* - * Authors: Jeffrey Stedfast <fejj@ximian.com> - * - * Copyright 2001 Ximian, Inc. (www.ximian.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA. - * - */ - - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <stdio.h> -#include <string.h> -#include <ctype.h> - -#include "camel-mime-filter-tohtml.h" - -#define d(x) - -static void camel_mime_filter_tohtml_class_init (CamelMimeFilterToHTMLClass *klass); -static void camel_mime_filter_tohtml_init (CamelObject *o); -static void camel_mime_filter_tohtml_finalize (CamelObject *o); - -static CamelMimeFilterClass *camel_mime_filter_tohtml_parent; - - -CamelType -camel_mime_filter_tohtml_get_type (void) -{ - static CamelType type = CAMEL_INVALID_TYPE; - - if (type == CAMEL_INVALID_TYPE) { - type = camel_type_register (camel_mime_filter_get_type (), - "CamelMimeFilterToHTML", - sizeof (CamelMimeFilterToHTML), - sizeof (CamelMimeFilterToHTMLClass), - (CamelObjectClassInitFunc) camel_mime_filter_tohtml_class_init, - NULL, - (CamelObjectInitFunc) camel_mime_filter_tohtml_init, - (CamelObjectFinalizeFunc) camel_mime_filter_tohtml_finalize); - } - - return type; -} - -static void -camel_mime_filter_tohtml_finalize (CamelObject *o) -{ - ; -} - -static void -camel_mime_filter_tohtml_init (CamelObject *o) -{ - ; -} - - -static char * -check_size (CamelMimeFilter *filter, char *outptr, char **outend, size_t len) -{ - size_t offset; - - if (*outend - outptr >= len) - return outptr; - - offset = outptr - filter->outbuf; - - camel_mime_filter_set_size (filter, filter->outsize + len, TRUE); - - *outend = filter->outbuf + filter->outsize; - - return filter->outbuf + offset; -} - -/* 1 = non-email-address chars: "()<>@,;:\\\"/[]`'|\n\t " */ -/* 2 = non-url chars: "()<>,;\\\"[]`'|\n\t " */ -/* 3 = trailing url garbage: ",.!?;:>)]}\\`'-_|\n\t " */ -static unsigned short special_chars[256] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 7, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 7, 4, 3, 0, 0, 0, 0, 7, 3, 7, 0, 0, 7, 4, 4, 1, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 7, 3, 0, 7, 4, - 1, 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, 3, 7, 3, 0, 4, - 7, 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, 7, 4, 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, 0, 0 -}; - - -#define IS_NON_ADDR (1 << 0) -#define IS_NON_URL (1 << 1) -#define IS_GARBAGE (1 << 2) - -#define NON_EMAIL_CHARS "()<>@,;:\\\"/[]`'|\n\t " -#define NON_URL_CHARS "()<>,;\\\"[]`'|\n\t " -#define TRAILING_URL_GARBAGE ",.!?;:>)}\\`'-_|\n\t " - -#define is_addr_char(c) (isprint (c) && !(special_chars[(unsigned char) c] & IS_NON_ADDR)) -#define is_url_char(c) (isprint (c) && !(special_chars[(unsigned char) c] & IS_NON_URL)) -#define is_trailing_garbage(c) (!isprint (c) || (special_chars[(unsigned char) c] & IS_GARBAGE)) - -#if 0 -static void -table_init (void) -{ - char *c; - - memset (special_chars, 0, sizeof (special_chars)); - for (c = NON_EMAIL_CHARS; *c; c++) - special_chars[(int) *c] |= IS_NON_ADDR; - for (c = NON_URL_CHARS; *c; c++) - special_chars[(int) *c] |= IS_NON_URL; - for (c = TRAILING_URL_GARBAGE; *c; c++) - special_chars[(int) *c] |= IS_GARBAGE; -} -#endif - -static char * -url_extract (char **in, int inlen, gboolean check, gboolean *backup) -{ - unsigned char *inptr, *inend, *p; - char *url; - - inptr = (unsigned char *) *in; - inend = inptr + inlen; - - while (inptr < inend && is_url_char (*inptr)) - inptr++; - - if ((char *) inptr == *in) - return NULL; - - /* back up if we probably went too far. */ - while (inptr > (unsigned char *) *in && is_trailing_garbage (*(inptr - 1))) - inptr--; - - if (check) { - /* make sure we weren't fooled. */ - p = memchr (*in, ':', (char *) inptr - *in); - if (!p) - return NULL; - } - - if (inptr == inend && backup) { - *backup = TRUE; - return NULL; - } - - url = g_strndup (*in, (char *) inptr - *in); - *in = inptr; - - return url; -} - -static char * -email_address_extract (char **in, char *inend, char *start, char **outptr, gboolean *backup) -{ - char *addr, *pre, *end, *dot; - - /* *in points to the '@'. Look backward for a valid local-part */ - for (pre = *in; pre - 1 >= start && is_addr_char (*(pre - 1)); pre--); - - if (pre == *in) - return NULL; - - /* Now look forward for a valid domain part */ - for (end = *in + 1, dot = NULL; end < inend && is_addr_char (*end); end++) { - if (*end == '.' && !dot) - dot = end; - } - - if (end >= inend && backup) { - *backup = TRUE; - *outptr -= (*in - pre); - *in = pre; - return NULL; - } - - if (!dot) - return NULL; - - /* Remove trailing garbage */ - while (end > *in && is_trailing_garbage (*(end - 1))) - end--; - if (dot > end) - return NULL; - - addr = g_strndup (pre, end - pre); - *outptr -= (*in - pre); - *in = end; - - return addr; -} - -static gboolean -is_citation (char *inptr, char *inend, gboolean saw_citation, gboolean *backup) -{ - if (*inptr != '>') - return FALSE; - - if (inend - inptr >= 6) { - /* make sure this isn't just mbox From-magling... */ - if (strncmp (inptr, ">From ", 6) != 0) - return TRUE; - } else if (backup) { - /* we don't have enough data to tell, so return */ - *backup = TRUE; - return saw_citation; - } - - /* if the previous line was a citation, then say this one is too */ - if (saw_citation) - return TRUE; - - /* otherwise it was just an isolated ">From " line */ - return FALSE; -} - -static gboolean -is_protocol (char *inptr, char *inend, gboolean *backup) -{ - if (inend - inptr >= 8) { - if (!strncasecmp (inptr, "http://", 7) || - !strncasecmp (inptr, "https://", 8) || - !strncasecmp (inptr, "ftp://", 6) || - !strncasecmp (inptr, "nntp://", 7) || - !strncasecmp (inptr, "mailto:", 7) || - !strncasecmp (inptr, "news:", 5)) - return TRUE; - } else if (backup) { - *backup = TRUE; - return FALSE; - } - - return FALSE; -} - -static void -html_convert (CamelMimeFilter *filter, char *in, size_t inlen, size_t prespace, - char **out, size_t *outlen, size_t *outprespace, gboolean flush) -{ - CamelMimeFilterToHTML *html = (CamelMimeFilterToHTML *) filter; - char *inptr, *inend, *outptr, *outend, *start; - gboolean backup = FALSE; - - camel_mime_filter_set_size (filter, inlen * 2 + 6, FALSE); - - inptr = start = in; - inend = in + inlen; - outptr = filter->outbuf; - outend = filter->outbuf + filter->outsize; - - if (html->flags & CAMEL_MIME_FILTER_TOHTML_PRE && !html->pre_open) { - outptr += sprintf (outptr, "%s", "<pre>"); - html->pre_open = TRUE; - } - - while (inptr < inend) { - unsigned char u; - - if (html->flags & CAMEL_MIME_FILTER_TOHTML_MARK_CITATION && html->column == 0) { - html->saw_citation = is_citation (inptr, inend, html->saw_citation, - flush ? &backup : NULL); - if (backup) - break; - - if (html->saw_citation) { - if (!html->coloured) { - char font[25]; - - g_snprintf (font, 25, "<font color=\"#%06x\">", html->colour); - - outptr = check_size (filter, outptr, &outend, 25); - outptr += sprintf (outptr, "%s", font); - html->coloured = TRUE; - } - } else if (html->coloured) { - outptr = check_size (filter, outptr, &outend, 10); - outptr += sprintf (outptr, "%s", "</font>"); - html->coloured = FALSE; - } - - /* display mbox-mangled ">From " as "From " */ - if (*inptr == '>' && !html->saw_citation) - inptr++; - } else if (html->flags & CAMEL_MIME_FILTER_TOHTML_CITE && html->column == 0) { - outptr = check_size (filter, outptr, &outend, 6); - outptr += sprintf (outptr, "%s", "> "); - } - - if (html->flags & CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS && isalpha ((int) *inptr)) { - char *refurl = NULL, *dispurl = NULL; - - if (is_protocol (inptr, inend, flush ? &backup : NULL)) { - dispurl = url_extract (&inptr, inend - inptr, TRUE, - flush ? &backup : NULL); - if (backup) - break; - - if (dispurl) - refurl = g_strdup (dispurl); - } else { - if (backup) - break; - - if (!strncasecmp (inptr, "www.", 4) && ((unsigned char) inptr[4]) < 0x80 - && isalnum ((int) inptr[4])) { - dispurl = url_extract (&inptr, inend - inptr, FALSE, - flush ? &backup : NULL); - if (backup) - break; - - if (dispurl) - refurl = g_strdup_printf ("http://%s", dispurl); - } - } - - if (dispurl) { - outptr = check_size (filter, outptr, &outend, - strlen (refurl) + - strlen (dispurl) + 15); - outptr += sprintf (outptr, "<a href=\"%s\">%s</a>", - refurl, dispurl); - html->column += strlen (dispurl); - g_free (refurl); - g_free (dispurl); - } - - if (inptr >= inend) - break; - } - - if (*inptr == '@' && (html->flags & CAMEL_MIME_FILTER_TOHTML_CONVERT_ADDRESSES)) { - char *addr, *outaddr; - - addr = email_address_extract (&inptr, inend, start, &outptr, - flush ? &backup : NULL); - if (backup) - break; - - if (addr) { - outaddr = g_strdup_printf ("<a href=\"mailto:%s\">%s</a>", - addr, addr); - outptr = check_size (filter, outptr, &outend, strlen (outaddr)); - outptr += sprintf (outptr, "%s", outaddr); - html->column += strlen (addr); - g_free (addr); - g_free (outaddr); - } - } - - outptr = check_size (filter, outptr, &outend, 32); - - switch ((u = (unsigned char) *inptr++)) { - case '<': - outptr += sprintf (outptr, "%s", "<"); - html->column++; - break; - - case '>': - outptr += sprintf (outptr, "%s", ">"); - html->column++; - break; - - case '&': - outptr += sprintf (outptr, "%s", "&"); - html->column++; - break; - - case '"': - outptr += sprintf (outptr, "%s", """); - html->column++; - break; - - case '\n': - if (html->flags & CAMEL_MIME_FILTER_TOHTML_CONVERT_NL) - outptr += sprintf (outptr, "%s", "<br>"); - - *outptr++ = '\n'; - start = inptr; - html->column = 0; - break; - - case '\t': - if (html->flags & (CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES)) { - do { - outptr = check_size (filter, outptr, &outend, 7); - outptr += sprintf (outptr, "%s", " "); - html->column++; - } while (html->column % 8); - break; - } - /* otherwise, FALL THROUGH */ - - case ' ': - if (html->flags & CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES) { - if (inptr == in || (inptr < inend && (*(inptr + 1) == ' ' || - *(inptr + 1) == '\t' || - *(inptr - 1) == '\n'))) { - outptr += sprintf (outptr, "%s", " "); - html->column++; - break; - } - } - /* otherwise, FALL THROUGH */ - - default: - if ((u >= 0x20 && u < 0x80) || - (u == '\r' || u == '\t')) { - /* Default case, just copy. */ - *outptr++ = (char) u; - } else { - if (html->flags & CAMEL_MIME_FILTER_TOHTML_ESCAPE_8BIT) - *outptr++ = '?'; - else - outptr += g_snprintf (outptr, 9, "&#%d;", (int) u); - } - html->column++; - break; - } - } - - if (inptr < inend) - camel_mime_filter_backup (filter, inptr, inend - inptr); - - if (flush && html->pre_open) { - outptr = check_size (filter, outptr, &outend, 10); - outptr += sprintf (outptr, "%s", "</pre>"); - html->pre_open = FALSE; - } - - *out = filter->outbuf; - *outlen = outptr - filter->outbuf; - *outprespace = filter->outpre; -} - -static void -filter_filter (CamelMimeFilter *filter, char *in, size_t len, size_t prespace, - char **out, size_t *outlen, size_t *outprespace) -{ - html_convert (filter, in, len, prespace, out, outlen, outprespace, FALSE); -} - -static void -filter_complete (CamelMimeFilter *filter, char *in, size_t len, size_t prespace, - char **out, size_t *outlen, size_t *outprespace) -{ - html_convert (filter, in, len, prespace, out, outlen, outprespace, TRUE); -} - -static void -filter_reset (CamelMimeFilter *filter) -{ - CamelMimeFilterToHTML *html = (CamelMimeFilterToHTML *) filter; - - html->column = 0; - html->pre_open = FALSE; - html->saw_citation = FALSE; - html->coloured = FALSE; -} - -static void -camel_mime_filter_tohtml_class_init (CamelMimeFilterToHTMLClass *klass) -{ - CamelMimeFilterClass *filter_class = (CamelMimeFilterClass *) klass; - - camel_mime_filter_tohtml_parent = CAMEL_MIME_FILTER_CLASS (camel_type_get_global_classfuncs (camel_mime_filter_get_type ())); - - filter_class->reset = filter_reset; - filter_class->filter = filter_filter; - filter_class->complete = filter_complete; -} - - -/** - * camel_mime_filter_tohtml_new: - * @flags: - * @colour: - * - * Creates a new CamelMimeFilterToHTML object. - * - * Returns a new CamelMimeFilter object. - **/ -CamelMimeFilter * -camel_mime_filter_tohtml_new (guint32 flags, guint32 colour) -{ - CamelMimeFilterToHTML *new; - - new = CAMEL_MIME_FILTER_TOHTML (camel_object_new (camel_mime_filter_tohtml_get_type ())); - - new->flags = flags; - new->colour = colour; - - return CAMEL_MIME_FILTER (new); -} |