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util/UriQueryParser: new library

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This commit is contained in:
Max Kellermann
2019-08-09 16:27:42 +02:00
parent e4612ecb66
commit 7654038d65
5 changed files with 133 additions and 0 deletions
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49
src/util/UriQueryParser.cxx Normal file
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@@ -0,0 +1,49 @@
/*
* Copyright 2008-2019 Max Kellermann <max.kellermann@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "UriQueryParser.hxx"
#include "IterableSplitString.hxx"
StringView
UriFindRawQueryParameter(StringView query_string, StringView name) noexcept
{
for (StringView i : IterableSplitString(query_string, '&')) {
if (i.StartsWith(name)) {
if (i.size == name.size)
return "";
if (i[name.size] == '=') {
i.skip_front(name.size + 1);
return i;
}
}
}
return nullptr;
}

48
src/util/UriQueryParser.hxx Normal file
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@@ -0,0 +1,48 @@
/*
* Copyright 2008-2019 Max Kellermann <max.kellermann@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef URI_QUERY_PARSER_HXX
#define URI_QUERY_PARSER_HXX
#include "Compiler.h"
struct StringView;
/**
* Find the first query parameter with the given name and return its
* raw value (without unescaping).
*
* @return the raw value (pointing into the #query_string parameter)
* or nullptr if the parameter does not exist
*/
gcc_pure
StringView
UriFindRawQueryParameter(StringView query_string, StringView name) noexcept;
#endif

1
src/util/meson.build
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@@ -18,6 +18,7 @@ util = static_library(
'FormatString.cxx',
'Tokenizer.cxx',
'UriExtract.cxx',
'UriQueryParser.cxx',
'UriRelative.cxx',
'UriUtil.cxx',
'LazyRandomEngine.cxx',