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/**
* @file lluriparser.cpp
* @author Protey
* @date 2014-10-07
* @brief Implementation of the LLUriParser class.
*
* $LicenseInfo:firstyear=2014&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2014, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "lluriparser.h"
LLUriParser::LLUriParser(const std::string& u) : mTmpScheme(false), mNormalizedTmp(false), mRes(0)
{
mState.uri = &mUri;
if (u.find("://") == std::string::npos)
{
mNormalizedUri = "http://";
mTmpScheme = true;
}
mNormalizedUri += u.c_str();
mRes = parse();
}
LLUriParser::~LLUriParser()
{
uriFreeUriMembersA(&mUri);
}
S32 LLUriParser::parse()
{
mRes = uriParseUriA(&mState, mNormalizedUri.c_str());
return mRes;
}
const char * LLUriParser::scheme() const
{
return mScheme.c_str();
}
void LLUriParser::sheme(const std::string& s)
{
mTmpScheme = !s.size();
mScheme = s;
}
const char * LLUriParser::port() const
{
return mPort.c_str();
}
void LLUriParser::port(const std::string& s)
{
mPort = s;
}
const char * LLUriParser::host() const
{
return mHost.c_str();
}
void LLUriParser::host(const std::string& s)
{
mHost = s;
}
const char * LLUriParser::path() const
{
return mPath.c_str();
}
void LLUriParser::path(const std::string& s)
{
mPath = s;
}
const char * LLUriParser::query() const
{
return mQuery.c_str();
}
void LLUriParser::query(const std::string& s)
{
mQuery = s;
}
const char * LLUriParser::fragment() const
{
return mFragment.c_str();
}
void LLUriParser::fragment(const std::string& s)
{
mFragment = s;
}
void LLUriParser::textRangeToString(UriTextRangeA& textRange, std::string& str)
{
if (textRange.first != NULL && textRange.afterLast != NULL && textRange.first < textRange.afterLast)
{
const ptrdiff_t len = textRange.afterLast - textRange.first;
str.assign(textRange.first, static_cast<std::string::size_type>(len));
}
else
{
str = LLStringUtil::null;
}
}
void LLUriParser::extractParts()
{
if (mTmpScheme || mNormalizedTmp)
{
mScheme.clear();
}
else
{
textRangeToString(mUri.scheme, mScheme);
}
textRangeToString(mUri.hostText, mHost);
textRangeToString(mUri.portText, mPort);
textRangeToString(mUri.query, mQuery);
textRangeToString(mUri.fragment, mFragment);
UriPathSegmentA * pathHead = mUri.pathHead;
while (pathHead)
{
std::string partOfPath;
textRangeToString(pathHead->text, partOfPath);
mPath += '/';
mPath += partOfPath;
pathHead = pathHead->next;
}
}
S32 LLUriParser::normalize()
{
mNormalizedTmp = mTmpScheme;
if (!mRes)
{
// Uriparser is 3p software we can not directly fix.
// On winodws this probably requires SEH handling, but all
// crashes so far were on MAC in scope of uriNormalizeSyntaxExA.
try
{
mRes = uriNormalizeSyntaxExA(&mUri, URI_NORMALIZE_SCHEME | URI_NORMALIZE_HOST);
if (!mRes)
{
S32 chars_required;
mRes = uriToStringCharsRequiredA(&mUri, &chars_required);
if (!mRes)
{
chars_required++;
std::vector<char> label_buf(chars_required);
mRes = uriToStringA(&label_buf[0], &mUri, chars_required, NULL);
if (!mRes)
{
mNormalizedUri = &label_buf[mTmpScheme ? 7 : 0];
mTmpScheme = false;
}
}
}
}
catch (...)
{
// At this point mNormalizedUri should contain http+unmodified input string.
LL_WARNS() << "Uriparser crashed processing: " << mNormalizedUri << LL_ENDL;
}
}
if(mTmpScheme)
{
mNormalizedUri = mNormalizedUri.substr(7);
mTmpScheme = false;
}
return mRes;
}
void LLUriParser::glue(std::string& uri) const
{
std::string first_part;
glueFirst(first_part);
std::string second_part;
glueSecond(second_part);
uri = first_part + second_part;
}
void LLUriParser::glueFirst(std::string& uri, bool use_scheme) const
{
if (use_scheme && mScheme.size())
{
uri = mScheme;
uri += "://";
}
else
{
uri.clear();
}
uri += mHost;
}
void LLUriParser::glueSecond(std::string& uri) const
{
if (mPort.size())
{
uri = ':';
uri += mPort;
}
else
{
uri.clear();
}
uri += mPath;
if (mQuery.size())
{
uri += '?';
uri += mQuery;
}
if (mFragment.size())
{
uri += '#';
uri += mFragment;
}
}
bool LLUriParser::test() const
{
std::string uri;
glue(uri);
return uri == mNormalizedUri;
}
const char * LLUriParser::normalizedUri() const
{
return mNormalizedUri.c_str();
}
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