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/*
* Copyright 2007 Google Inc. All rights reserved.
* Copyright 2012 Apple Inc. All rights reserved.
*
* 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* 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 COPYRIGHT
* OWNER 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,
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// Functions for canonicalizing "path" URLs. Not to be confused with the path
// of a URL, these are URLs that have no authority section, only a path. For
// example, "javascript:" and "data:".
#include "config.h"
#include "URLCanon.h"
#include "RawURLBuffer.h"
#include "URLCanonInternal.h"
#if USE(WTFURL)
namespace WTF {
namespace URLCanonicalizer {
namespace {
template<typename CharacterType, typename UCHAR>
bool doCanonicalizePathURL(const URLComponentSource<CharacterType>& source, const URLSegments& parsed, URLBuffer<char>& output, URLSegments& ouputParsed)
{
// Scheme: this will append the colon.
bool success = canonicalizeScheme(source.scheme, parsed.scheme, output, ouputParsed.scheme);
// We assume there's no authority for path URLs. Note that hosts should never
// have -1 length.
ouputParsed.username.reset();
ouputParsed.password.reset();
ouputParsed.host.reset();
ouputParsed.port.reset();
if (parsed.path.isValid()) {
// Copy the path using path URL's more lax escaping rules (think for
// javascript:). We convert to UTF-8 and escape non-ASCII, but leave all
// ASCII characters alone. This helps readability of JavaStript.
ouputParsed.path.setBegin(output.length());
int end = parsed.path.end();
for (int i = parsed.path.begin(); i < end; ++i) {
UCHAR uch = static_cast<UCHAR>(source.path[i]);
if (uch < 0x20 || uch >= 0x80)
success &= AppendUTF8EscapedChar(source.path, &i, end, output);
else
output.append(static_cast<char>(uch));
}
ouputParsed.path.setLength(output.length() - ouputParsed.path.begin());
} else {
// Empty path.
ouputParsed.path.reset();
}
// Assume there's no query or ref.
ouputParsed.query.reset();
ouputParsed.fragment.reset();
return success;
}
} // namespace
bool canonicalizePathURL(const char* spec, const URLSegments& parsed, URLBuffer<char>& output, URLSegments& ouputParsed)
{
return doCanonicalizePathURL<char, unsigned char>(URLComponentSource<char>(spec), parsed, output, ouputParsed);
}
bool canonicalizePathURL(const UChar* spec, const URLSegments& parsed, URLBuffer<char>& output, URLSegments& ouputParsed)
{
return doCanonicalizePathURL<UChar, UChar>(URLComponentSource<UChar>(spec), parsed, output, ouputParsed);
}
bool ReplacePathURL(const char* base, const URLSegments& baseParsed, const Replacements<char>& replacements, URLBuffer<char>& output, URLSegments* ouputParsed)
{
URLComponentSource<char> source(base);
URLSegments parsed(baseParsed);
SetupOverrideComponents(base, replacements, &source, &parsed);
return doCanonicalizePathURL<char, unsigned char>(source, parsed, output, *ouputParsed);
}
bool ReplacePathURL(const char* base, const URLSegments& baseParsed, const Replacements<UChar>& replacements, URLBuffer<char>& output, URLSegments* ouputParsed)
{
RawURLBuffer<char> utf8;
URLComponentSource<char> source(base);
URLSegments parsed(baseParsed);
SetupUTF16OverrideComponents(base, replacements, utf8, &source, &parsed);
return doCanonicalizePathURL<char, unsigned char>(source, parsed, output, *ouputParsed);
}
} // namespace URLCanonicalizer
} // namespace WTF
#endif // USE(WTFURL)