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124 lines
3.0 KiB
C
124 lines
3.0 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2006, Digium, Inc.
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*
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* Created by Olle E. Johansson, Edvina.net
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief URI encoding / decoding
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*
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* \author Olle E. Johansson <oej@edvina.net>
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*
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* \note For now this code only supports 8 bit characters, not unicode,
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which we ultimately will need to support.
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*
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* \ingroup functions
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*/
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/*** MODULEINFO
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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#include "asterisk/module.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/utils.h"
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#include "asterisk/app.h"
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/*** DOCUMENTATION
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<function name="URIENCODE" language="en_US">
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<synopsis>
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Encodes a string to URI-safe encoding according to RFC 2396.
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</synopsis>
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<syntax>
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<parameter name="data" required="true">
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<para>Input string to be encoded.</para>
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</parameter>
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</syntax>
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<description>
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<para>Returns the encoded string defined in <replaceable>data</replaceable>.</para>
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</description>
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</function>
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<function name="URIDECODE" language="en_US">
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<synopsis>
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Decodes a URI-encoded string according to RFC 2396.
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</synopsis>
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<syntax>
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<parameter name="data" required="true">
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<para>Input string to be decoded.</para>
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</parameter>
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</syntax>
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<description>
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<para>Returns the decoded URI-encoded <replaceable>data</replaceable> string.</para>
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</description>
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</function>
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***/
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/*! \brief uriencode: Encode URL according to RFC 2396 */
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static int uriencode(struct ast_channel *chan, const char *cmd, char *data,
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char *buf, size_t len)
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{
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if (ast_strlen_zero(data)) {
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buf[0] = '\0';
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return 0;
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}
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ast_uri_encode(data, buf, len, ast_uri_http);
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return 0;
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}
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/*!\brief uridecode: Decode URI according to RFC 2396 */
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static int uridecode(struct ast_channel *chan, const char *cmd, char *data,
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char *buf, size_t len)
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{
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if (ast_strlen_zero(data)) {
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buf[0] = '\0';
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return 0;
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}
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ast_copy_string(buf, data, len);
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ast_uri_decode(buf, ast_uri_http);
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return 0;
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}
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static struct ast_custom_function urldecode_function = {
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.name = "URIDECODE",
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.read = uridecode,
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};
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static struct ast_custom_function urlencode_function = {
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.name = "URIENCODE",
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.read = uriencode,
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};
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static int unload_module(void)
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{
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return ast_custom_function_unregister(&urldecode_function)
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|| ast_custom_function_unregister(&urlencode_function);
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}
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static int load_module(void)
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{
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return ast_custom_function_register(&urldecode_function)
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|| ast_custom_function_register(&urlencode_function);
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "URI encode/decode dialplan functions");
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