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/* ============================================================================ |
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* Douglas Thrift's Search Engine License |
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* |
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* Copyright (C) 2002-2004, Douglas Thrift. All Rights Reserved. |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright notice, |
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* this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright notice, |
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* this list of conditions and the following disclaimer in the documentation |
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* and/or other materials provided with the distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, if any, must |
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* include the following acknowledgment: |
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* |
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* "This product includes software developed by Douglas Thrift |
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* (http://computers.douglasthrift.net/searchengine/)." |
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* |
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* Alternately, this acknowledgment may appear in the software itself, if |
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* and wherever such third-party acknowledgments normally appear. |
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* |
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* 4. The names "Douglas Thrift" and "Douglas Thrift's Search Engine" must not |
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* be used to endorse or promote products derived from this software without |
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* specific prior written permission. For written permission, please visit |
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* http://www.douglasthrift.net/contact.cgi for contact information. |
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* |
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* 5. Products derived from this software may not be called "Douglas Thrift's |
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* Search Engine", nor may "Douglas Thrift's Search Engine" appear in their |
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* name, without prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, |
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* ============================================================================ |
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*/ |
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// Douglas Thrift's Search Engine URL |
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// |
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// Douglas Thrift |
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// |
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// $Id$ |
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|
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#include "URL.hpp" |
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|
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string URL::getURL() |
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{ |
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ostringstream url; |
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|
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#ifndef _OpenSSL_ |
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url << "http://" << address; |
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|
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if (port != 80) |
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#else |
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url << (tls ? "https://" : "http://") << address; |
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|
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if (port != 80 && !tls || port != 443 && tls) |
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#endif |
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{ |
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url << ":" << port; |
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} |
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|
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url << path; |
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|
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return url.str(); |
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} |
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|
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void URL::setURL(const URL& url) |
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{ |
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this->address = url.address; |
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this->port = url.port; |
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this->path = url.path; |
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#ifdef _OpenSSL_ |
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this->tls = url.tls; |
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#endif |
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} |
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|
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void URL::setURL(const string& url) |
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{ |
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#ifndef _OpenSSL_ |
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if (url.find("http://") != 0 || url.length() <= 7) |
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{ |
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cerr << program << ": Malformed URL: " << url << "\n"; |
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exit(1); |
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} |
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|
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unsigned begin(7); |
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|
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#else |
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tls = false; |
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|
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if (url.find("https://") == 0 && url.length() > 8) |
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{ |
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tls = true; |
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} |
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else if (url.find("http://") != 0 || url.length() <= 7) |
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{ |
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cerr << program << ": Malformed URL: " << url << "\n"; |
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|
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exit(1); |
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} |
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|
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unsigned begin(tls ? 8 : 7); |
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#endif |
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|
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unsigned colon(url.find(':', begin)), end(url.find('/', begin)); |
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|
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if (colon != string::npos && colon < end) |
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{ |
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address = url.substr(begin, colon - begin); |
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|
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istringstream number((url.substr(colon + 1, end - colon - 1))); |
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|
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number >> port; |
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} |
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else |
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{ |
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address = url.substr(begin, end - begin); |
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#ifndef _OpenSSL_ |
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port = 80; |
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#else |
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port = tls ? 443 : 80; |
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#endif |
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} |
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|
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if (end == string::npos) |
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{ |
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path = "/"; |
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} |
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else |
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{ |
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path = url.substr(end); |
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} |
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} |
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|
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void URL::setPath(const string& path) |
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{ |
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if (path.find('/') != 0) |
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{ |
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this->path = "/" + path; |
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} |
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else |
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{ |
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this->path = path; |
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} |
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} |
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|
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ostream& operator<<(ostream& os, URL& data) |
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{ |
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os << data.getURL(); |
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|
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return os; |
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} |
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|
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string getLink(string link, URL& url) |
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{ |
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string hyperlink; |
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|
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if (link.find('#') != string::npos) |
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{ |
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unsigned pound(link.find('#')); |
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|
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link.erase(pound); |
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} |
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|
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if (link.find("://") != string::npos) |
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{ |
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#ifndef _OpenSSL_ |
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if (link.find("http://") == 0 && link.length() > 7) hyperlink = link; |
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#else |
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if (link.find("http://") == 0 && link.length() > 7 || |
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link.find("https://") == 0 && link.length() > 8) hyperlink = link; |
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#endif |
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} |
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else if (link.find("mailto:") == 0) |
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{ |
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// do nothing we are not evil spammers! |
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} |
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else if (link.find("news:") == 0) |
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{ |
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// do nothing this isn't Google Groups |
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} |
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else if (link.find("aim:") == 0) |
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{ |
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// do nothing we don't do AIM |
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} |
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else if (link.find("//") == 0) |
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{ |
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#ifndef _OpenSSL_ |
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hyperlink = "http:" + link; |
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#else |
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hyperlink = (url.getTls() ? "https:" : "http:") + link; |
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#endif |
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} |
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else if (link.find('/') == 0) |
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{ |
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hyperlink = url.getURL(); |
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|
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#ifndef _OpenSSL_ |
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unsigned path(hyperlink.find('/', 7)); |
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#else |
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unsigned path(hyperlink.find('/', url.getTls() ? 8 : 7)); |
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#endif |
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|
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hyperlink.erase(path); |
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|
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hyperlink += link; |
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} |
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else if (link.empty()) |
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{ |
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// a blank link is useless |
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} |
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else |
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{ |
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hyperlink = url.getURL(); |
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|
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string path(url.getPath()); |
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unsigned cutoff(hyperlink.rfind(path)); |
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|
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hyperlink.erase(cutoff); |
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|
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unsigned dir(path.rfind('/') + 1); |
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|
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path.erase(dir); |
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|
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while (link.find("../") == 0) |
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{ |
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unsigned dot(path.rfind('/') - 1), up(path.rfind('/', dot) + 1); |
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|
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path.erase(up); |
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link.erase(0, 3); |
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} |
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while (link.find("./") == 0) |
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{ |
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link.erase(0, 2); |
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} |
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|
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hyperlink += path + link; |
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} |
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|
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return hyperlink; |
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} |
