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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, Douglas Thrift. All Rights Reserved. |
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* Copyright (C) 2002-2003, 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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#include "HttpHandler.h" |
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#ifndef _WIN32 |
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#include <unistd.h> |
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#include <sys/types.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <netdb.h> |
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|
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#define INVALID_SOCKET -1 |
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#define SOCKET_ERROR -1 |
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|
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inline int closesocket(SOCKET s) { return close(s); } |
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#endif |
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|
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HttpHandler::HttpHandler() |
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{ |
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buffer = new char[BUFSIZ + 1]; |
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} |
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#endif // _WIN32 |
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|
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begin = 0; |
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length = 0; |
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chunked = false; |
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} |
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#endif // _WIN32 |
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} |
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bool HttpHandler::handle(URL &url, bool head) |
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bool HttpHandler::handle(URL &url, const string referer, bool head) |
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{ |
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bool answer = false; |
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delete [] port; |
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} |
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if (referer != "") |
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{ |
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putline("Referer: " + referer); |
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} |
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|
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putline("Connection: close"); |
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putline(); |
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unsigned dot = line.find('.'); |
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unsigned space = line.find(' '); |
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unsigned major = strtoul(line.substr(5, dot - 5).c_str(), 0, 0); |
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unsigned minor = strtoul(line.substr(dot + 1, space - dot - 1).c_str(), 0, |
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0); |
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unsigned major = strtoul(line.substr(5, dot - 5).c_str(), 0, 10); |
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unsigned minor = strtoul(line.substr(dot + 1, space - dot - 1).c_str(), |
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0, 10); |
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if (major > 1 || minor < 1) |
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if (major > 1) |
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{ |
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cerr << program << ": Potentially Incompatible Server: HTTP/" << major |
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<< "." << minor << "\n"; |
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cerr << program << ": Potentially Incompatible Server: HTTP/" << |
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major << "." << minor << "\n"; |
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return answer; |
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} |
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response = code(strtoul(line.substr(space + 1).c_str(), 0, 0)); |
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response = code(strtoul(line.substr(space + 1).c_str(), 0, 10)); |
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if (response < ok) do line = getline(); while (line != ""); |
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} |
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while (isspace(value[0])) value.erase(0, 1); |
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// if (field = |
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if (field == "Content-Type") |
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{ |
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type = value; |
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} |
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else if (field == "Content-Length") |
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{ |
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length = strtoul(value.c_str(), 0, 10); |
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} |
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else if (field == "Location") |
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{ |
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location = value; |
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} |
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else if (field == "Transfer-Encoding") |
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{ |
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chunked = value == "chunked"; |
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} |
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} |
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} |
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while (line != ""); |
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break; |
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} |
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if (!head && answer) populate(); |
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|
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return answer; |
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} |
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HttpHandler& HttpHandler::getline(string& line, char endline) |
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{ |
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int end = page.find(endline, begin); |
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int newline = page.find('\n', begin); |
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unsigned end = page.find(endline); |
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unsigned newline = page.find('\n'); |
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if (newline < end || end == string::npos) |
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{ |
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end = newline; |
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} |
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line = page.substr(begin, end - begin); |
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if (end == string::npos) |
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{ |
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begin = end; |
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} |
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else |
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{ |
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begin = end + 1; |
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} |
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line = page.substr(0, end); |
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page.erase(0, (end == string::npos ? end : end + 1)); |
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return *this; |
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} |
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bool HttpHandler::good() |
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{ |
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bool answer = true; |
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if (begin >= page.length()) |
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{ |
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answer = false; |
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} |
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else if (begin == string::npos) |
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{ |
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answer = false; |
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} |
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|
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return answer; |
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} |
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|
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void HttpHandler::clear() |
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{ |
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closesocket(http); |
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type = ""; |
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length = 0; |
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location = ""; |
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begin = 0; |
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page = ""; |
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chunked = false; |
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} |
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void HttpHandler::populate() |
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{ |
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if (!chunked) |
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{ |
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unsigned left = length; |
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|
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while (left > 0) |
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{ |
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memset(buffer, 0, BUFSIZ + 1); |
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|
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unsigned bytes = left > BUFSIZ ? BUFSIZ : left; |
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unsigned received; |
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while (true) |
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{ |
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if ((received = recv(http, buffer, bytes, 0)) == SOCKET_ERROR) |
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{ |
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error(program + ": Recv"); |
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exit(1); |
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} |
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else if (received != bytes) |
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{ |
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left -= received; |
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page += buffer; |
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memset(buffer, 0, BUFSIZ + 1); |
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bytes -= received; |
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} |
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else |
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{ |
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break; |
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} |
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} |
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|
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page += buffer; |
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left -= bytes; |
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} |
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} |
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else |
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{ |
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unsigned chunk; |
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do |
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{ |
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chunk = strtoul(getline().c_str(), 0, 16); |
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unsigned left = chunk; |
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while (left > 0) |
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{ |
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memset(buffer, 0, BUFSIZ + 1); |
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|
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unsigned bytes = left > BUFSIZ ? BUFSIZ : left; |
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unsigned received; |
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while (true) |
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{ |
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if ((received = recv(http, buffer, bytes, 0)) == |
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SOCKET_ERROR) |
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{ |
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error(program + ": Recv"); |
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exit(1); |
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} |
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else if (received != bytes) |
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{ |
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left -= received; |
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page += buffer; |
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|
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memset(buffer, 0, BUFSIZ + 1); |
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bytes -= received; |
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} |
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else |
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{ |
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break; |
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} |
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} |
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|
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page += buffer; |
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left -= bytes; |
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} |
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getline(); |
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length += chunk; |
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} |
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while (chunk > 0); |
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} |
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|
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for (unsigned index = 0; index < page.length(); index++) |
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{ |
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if (page[index] == '\r' && (index + 1 < page.length()) ? page[index + |
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1] == '\n' : false) |
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{ |
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page.erase(index, 1); |
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} |
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else if (page[index] == '\r') |
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{ |
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page[index] = '\n'; |
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} |
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} |
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} |
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|
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void HttpHandler::putline(const string line) |
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{ |
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sprintf(buffer, "%s\r\n", line.c_str()); |