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/*-
* Copyright 2021 Vsevolod Stakhov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef RSPAMD_HTML_H
#define RSPAMD_HTML_H
#include "config.h"
#include "libutil/mem_pool.h"
#include "libserver/url.h"
#ifdef __cplusplus
extern "C" {
#endif
/*
* HTML content flags
*/
#define RSPAMD_HTML_FLAG_BAD_START (1 << 0)
#define RSPAMD_HTML_FLAG_BAD_ELEMENTS (1 << 1)
#define RSPAMD_HTML_FLAG_XML (1 << 2)
#define RSPAMD_HTML_FLAG_UNBALANCED (1 << 3)
#define RSPAMD_HTML_FLAG_UNKNOWN_ELEMENTS (1 << 4)
#define RSPAMD_HTML_FLAG_DUPLICATE_ELEMENTS (1 << 5)
#define RSPAMD_HTML_FLAG_TOO_MANY_TAGS (1 << 6)
#define RSPAMD_HTML_FLAG_HAS_DATA_URLS (1 << 7)
#define RSPAMD_HTML_FLAG_HAS_ZEROS (1 << 8)
/*
* Image flags
*/
#define RSPAMD_HTML_FLAG_IMAGE_EMBEDDED (1 << 0)
#define RSPAMD_HTML_FLAG_IMAGE_EXTERNAL (1 << 1)
#define RSPAMD_HTML_FLAG_IMAGE_DATA (1 << 2)
struct rspamd_image;
struct html_image {
guint height;
guint width;
guint flags;
gchar *src;
struct rspamd_url *url;
struct rspamd_image *embedded_image;
void *tag;
};
/* Forwarded declaration */
struct rspamd_task;
/*
* Decode HTML entitles in text. Text is modified in place.
*/
guint rspamd_html_decode_entitles_inplace(gchar *s, gsize len);
void *rspamd_html_process_part(rspamd_mempool_t *pool,
GByteArray *in);
void *rspamd_html_process_part_full(struct rspamd_task *task,
GByteArray *in, GList **exceptions,
khash_t(rspamd_url_hash) * url_set,
GPtrArray *part_urls,
bool allow_css,
uint16_t *cur_url_order);
/*
* Returns true if a specified tag has been seen in a part
*/
gboolean rspamd_html_tag_seen(void *ptr, const gchar *tagname);
/**
* Returns name for the specified tag id
* @param id
* @return
*/
const gchar *rspamd_html_tag_by_id(gint id);
/**
* Returns HTML tag id by name
* @param name
* @return
*/
gint rspamd_html_tag_by_name(const gchar *name);
/**
* Gets a name for a tag
* @param tag
* @param len
* @return
*/
const gchar *rspamd_html_tag_name(void *tag, gsize *len);
/**
* Find HTML image by content id
* @param html_content
* @param cid
* @param cid_len
* @return
*/
struct html_image *rspamd_html_find_embedded_image(void *html_content,
const char *cid, gsize cid_len);
/**
* Stores parsed content in ftok_t structure
* @param html_content
* @param dest
* @return
*/
bool rspamd_html_get_parsed_content(void *html_content, rspamd_ftok_t *dest);
/**
* Returns number of tags in the html content
* @param html_content
* @return
*/
gsize rspamd_html_get_tags_count(void *html_content);
#ifdef __cplusplus
}
#endif
#endif
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