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Viewing changes to libtinymail-camel/camel-lite/camel/camel-mime-filter-html.c

  • Committer: Bazaar Package Importer
  • Author(s): Steve Kowalik
  • Date: 2007-10-12 11:21:12 UTC
  • Revision ID: james.westby@ubuntu.com-20071012112112-fod9fs7yrooxjr7i
Tags: upstream-0.0.2
Import upstream version 0.0.2

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libtinymail-camel/camel-lite/camel/camel-mime-filter-html.c
 
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
 
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/*
 
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 *  Copyright (C) 2001 Ximian Inc.
 
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 *
 
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 *  Authors: Michael Zucchi <notzed@ximian.com>
 
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 *
 
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 * This program is free software; you can redistribute it and/or
 
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 * modify it under the terms of version 2 of the GNU Lesser General Public
 
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 * License as published by the Free Software Foundation.
 
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 *
 
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 * This program is distributed in the hope that it will be useful,
 
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 
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 * General Public License for more details.
 
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 *
 
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 * You should have received a copy of the GNU Lesser General Public
 
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 * License along with this program; if not, write to the
 
18
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 
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 * Boston, MA 02111-1307, USA.
 
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 */
 
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#include <fcntl.h>
 
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#include <stdarg.h>
 
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#include <stdio.h>
 
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#include <stdlib.h>
 
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#include <string.h>
 
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#include <unistd.h>
 
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#include <sys/stat.h>
 
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#include <sys/types.h>
 
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#include "camel-html-parser.h"
 
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#include "camel-mime-filter-html.h"
 
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#define d(x)
 
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static void camel_mime_filter_html_class_init (CamelMimeFilterHTMLClass *klass);
 
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static void camel_mime_filter_html_init       (CamelObject *o);
 
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static void camel_mime_filter_html_finalize   (CamelObject *o);
 
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static CamelMimeFilterClass *camel_mime_filter_html_parent;
 
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struct _CamelMimeFilterHTMLPrivate {
 
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        CamelHTMLParser *ctxt;
 
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};
 
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/* ********************************************************************** */
 
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#if 0
 
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/* well we odnt use this stuff yet */
 
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#define ARRAY_LEN(x) (sizeof(x)/sizeof((x)[0]))
 
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static struct {
 
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        char *element;
 
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        char *remap;
 
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} map_start[] = {
 
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        { "p", "\n\n" },
 
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        { "br", "\n" },
 
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        { "h1", "\n" }, { "h2", "\n" }, { "h3", "\n" }, { "h4", "\n" }, { "h5", "\n" }, { "h6", "\n" },
 
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};
 
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63
 
 
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static struct {
 
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        char *element;
 
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        char *remap;
 
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} map_end[] = {
 
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        { "h1", "\n" }, { "h2", "\n" }, { "h3", "\n" }, { "h4", "\n" }, { "h5", "\n" }, { "h6", "\n" },
 
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};
 
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#endif
 
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72
 
 
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/* ********************************************************************** */
 
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CamelType
 
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camel_mime_filter_html_get_type (void)
 
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{
 
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        static CamelType type = CAMEL_INVALID_TYPE;
 
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        if (type == CAMEL_INVALID_TYPE) {
 
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                type = camel_type_register (camel_mime_filter_get_type (), "CamelMimeFilterHTML",
 
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                                            sizeof (CamelMimeFilterHTML),
 
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                                            sizeof (CamelMimeFilterHTMLClass),
 
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                                            (CamelObjectClassInitFunc) camel_mime_filter_html_class_init,
 
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                                            NULL,
 
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                                            (CamelObjectInitFunc) camel_mime_filter_html_init,
 
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                                            (CamelObjectFinalizeFunc) camel_mime_filter_html_finalize);
 
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        }
 
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        return type;
 
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}
 
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static void
 
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camel_mime_filter_html_finalize(CamelObject *o)
 
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{
 
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        CamelMimeFilterHTML *f = (CamelMimeFilterHTML *)o;
 
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        camel_object_unref((CamelObject *)f->priv->ctxt);
 
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        g_free(f->priv);
 
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}
 
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static void
 
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camel_mime_filter_html_init       (CamelObject *o)
 
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{
 
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        CamelMimeFilterHTML *f = (CamelMimeFilterHTML *)o;
 
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        f->priv = g_malloc0(sizeof(*f->priv));
 
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        f->priv->ctxt = camel_html_parser_new();
 
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}
 
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static void
 
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run(CamelMimeFilter *mf, char *in, size_t inlen, size_t prespace, char **out, size_t *outlenptr, size_t *outprespace, int last)
 
114
{
 
115
        CamelMimeFilterHTML *f = (CamelMimeFilterHTML *) mf;
 
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        camel_html_parser_t state;
 
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        char *outp;
 
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        d(printf("converting html:\n%.*s\n", (int)inlen, in));
 
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        /* We should generally shrink the data, but this'll do */
 
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        camel_mime_filter_set_size (mf, inlen * 2 + 256, FALSE);
 
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        outp = mf->outbuf;
 
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        camel_html_parser_set_data (f->priv->ctxt, in, inlen, last);
 
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        do {
 
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                const char *data;
 
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                int len;
 
129
                
 
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                state = camel_html_parser_step(f->priv->ctxt, &data, &len);
 
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                switch(state) {
 
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                case CAMEL_HTML_PARSER_DATA:
 
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                case CAMEL_HTML_PARSER_ENT:
 
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                        memcpy(outp, data, len);
 
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                        outp += len;
 
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                        break;
 
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                case CAMEL_HTML_PARSER_ELEMENT:
 
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                        /* FIXME: do some whitespace processing here */
 
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                        break;
 
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                default:
 
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                        /* ignore everything else */
 
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                        break;
 
144
                }
 
145
        } while (state != CAMEL_HTML_PARSER_EOF && state != CAMEL_HTML_PARSER_EOD);
 
146
 
 
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        *out = mf->outbuf;
 
148
        *outlenptr = outp - mf->outbuf;
 
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        *outprespace = mf->outbuf - mf->outreal;
 
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151
        d(printf("converted html end:\n%.*s\n", (int)*outlenptr, *out));
 
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}
 
153
 
 
154
static void
 
155
complete(CamelMimeFilter *mf, char *in, size_t len, size_t prespace, char **out, size_t *outlenptr, size_t *outprespace)
 
156
{
 
157
        run(mf, in, len, prespace, out, outlenptr, outprespace, TRUE);
 
158
}
 
159
 
 
160
static void
 
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filter(CamelMimeFilter *mf, char *in, size_t len, size_t prespace, char **out, size_t *outlenptr, size_t *outprespace)
 
162
{
 
163
        run(mf, in, len, prespace, out, outlenptr, outprespace, FALSE);
 
164
}
 
165
 
 
166
static void
 
167
reset(CamelMimeFilter *mf)
 
168
{
 
169
        CamelMimeFilterHTML *f = (CamelMimeFilterHTML *)mf;
 
170
 
 
171
        camel_object_unref((CamelObject *)f->priv->ctxt);
 
172
        f->priv->ctxt = camel_html_parser_new();
 
173
}
 
174
 
 
175
static void
 
176
camel_mime_filter_html_class_init (CamelMimeFilterHTMLClass *klass)
 
177
{
 
178
        CamelMimeFilterClass *filter_class = (CamelMimeFilterClass *) klass;
 
179
        
 
180
        camel_mime_filter_html_parent = CAMEL_MIME_FILTER_CLASS (camel_type_get_global_classfuncs (camel_mime_filter_get_type ()));
 
181
 
 
182
        filter_class->reset = reset;
 
183
        filter_class->filter = filter;
 
184
        filter_class->complete = complete;
 
185
}
 
186
 
 
187
 
 
188
/**
 
189
 * camel_mime_filter_html_new:
 
190
 *
 
191
 * Create a new #CamelMimeFilterHTML object.
 
192
 * 
 
193
 * Returns a new #CamelMimeFilterHTML object
 
194
 **/
 
195
CamelMimeFilterHTML *
 
196
camel_mime_filter_html_new (void)
 
197
{
 
198
        CamelMimeFilterHTML *new = CAMEL_MIME_FILTER_HTML ( camel_object_new (camel_mime_filter_html_get_type ()));
 
199
        return new;
 
200
}