121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/*
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* Copyright 2005 James Bursa <bursa@users.sourceforge.net>
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* Copyright 2005 John M Bell <jmb202@ecs.soton.ac.uk>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file utils/url.h
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* \brief Interface to URL parsing and joining operations.
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*/
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#ifndef _NETSURF_UTILS_URL_H_
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#define _NETSURF_UTILS_URL_H_
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#include "utils/errors.h"
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/** File url prefix. */
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#define FILE_SCHEME_PREFIX "file:///"
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/** File url prefix length. */
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#define FILE_SCHEME_PREFIX_LEN 8
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/** Split out components of a url. */
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struct url_components {
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const char *buffer;
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const char *scheme;
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const char *authority;
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const char *path;
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const char *query;
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const char *fragment;
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};
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/**
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* Initialise URL routines.
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*
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* Compiles regular expressions required by the url_ functions.
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*/
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void url_init(void);
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/**
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* Check whether a host string is an IP address.
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*
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* This call detects IPv4 addresses (all of dotted-quad or subsets,
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* decimal or hexadecimal notations) and IPv6 addresses (including
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* those containing embedded IPv4 addresses.)
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*
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* \param host a hostname terminated by '\0'
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* \return true if the hostname is an IP address, false otherwise
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*/
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bool url_host_is_ip_address(const char *host);
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/**
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* Return the scheme name from an URL.
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*
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* See RFC 3986, 3.1 for reference.
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*
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* \param url an absolute URL
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* \param result pointer to pointer to buffer to hold scheme name
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* \return NSERROR_OK on success
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*/
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nserror url_scheme(const char *url, char **result);
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/**
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* Attempt to find a nice filename for a URL.
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*
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* \param url an absolute URL
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* \param result pointer to pointer to buffer to hold filename
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* \param remove_extensions remove any extensions from the filename
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* \return NSERROR_OK on success
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*/
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nserror url_nice(const char *url, char **result, bool remove_extensions);
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/**
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* Escape a string suitable for inclusion in an URL.
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*
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* \param unescaped the unescaped string
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* \param toskip number of bytes to skip in unescaped string
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* \param sptoplus true iff spaces should be converted to +
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* \param escexceptions NULL or a string of characters excluded to be escaped
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* \param result pointer to pointer to buffer to hold escaped string
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* \return NSERROR_OK on success
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*/
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nserror url_escape(const char *unescaped, size_t toskip, bool sptoplus, const char *escexceptions, char **result);
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/**
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* Convert an escaped string to plain.
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* \param result unescaped string owned by caller must be freed with free()
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* \return NSERROR_OK on success
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*/
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nserror url_unescape(const char *str, char **result);
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/**
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* Extract path segment from an URL
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*
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* \param url an absolute URL
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* \param result pointer to pointer to buffer to hold result
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* \return NSERROR_OK on success
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*/
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nserror url_path(const char *url, char **result);
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#endif
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