579 lines
10 KiB
C++
Executable File
579 lines
10 KiB
C++
Executable File
/*
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* This file is a part of Winix
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* and is not publicly distributed
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*
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* Copyright (c) 2008-2010, Tomasz Sowa
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* All rights reserved.
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*
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*/
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#include <ctime>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "request.h"
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#include "getparser.h"
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#include "postparser.h"
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#include "cookieparser.h"
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#include "log.h"
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#include "plugin.h"
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#include "misc.h"
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#include "db.h"
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#include "functions/functionbase.h"
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Request::Request() : char_empty(0)
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{
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id = 0;
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Clear();
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}
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void Request::SetConfig(Config * pconfig)
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{
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config = pconfig;
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}
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void Request::Init()
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{
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compress.Init();
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}
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void Request::ClearPostFileTmp()
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{
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// deleting temporary files (if exists)
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while( !post_file_tab.empty() )
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{
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const std::string & tmp_filename = post_file_tab.begin()->second.tmp_filename;
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if( unlink(tmp_filename.c_str()) == 0 )
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log << log3 << "Request: deleted tmp file: " << tmp_filename << logend;
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post_file_tab.erase(post_file_tab.begin());
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}
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}
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void Request::Clear()
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{
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// warning: don't clear: in, out, err, env
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// id is never 0
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if( ++id == 0 )
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++id;
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get_tab.clear();
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post_tab.clear();
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post_file_tab.clear();
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cookie_tab.clear();
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method = none;
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role = responder;
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headers.str("");
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page.str("");
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debug.str("");
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//notify.str("");
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env_request_method = &char_empty;
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env_request_uri = &char_empty;
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env_http_cookie = &char_empty;
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env_remote_addr = &char_empty;
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env_http_host = &char_empty;
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env_http_user_agent = &char_empty;
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env_http_accept_encoding = &char_empty;
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env_fcgi_role = &char_empty;
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env_content_type = &char_empty;
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session = 0;
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item_tab.clear();
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item.Clear();
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dir_tab.clear();
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is_item = false;
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function = 0;
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param_tab.clear();
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status = WINIX_ERR_OK;
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notify_code = 0;
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browser_msie = false;
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redirect_to.clear();
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x_sendfile.clear();
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send_as_attachment = false;
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plugin.Call(WINIX_REQUEST_CLEAR);
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}
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// value can be null
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void Request::SetCookie(const char * name, const char * value, tm * expires)
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{
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headers << "Set-Cookie: " << name << "=";
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if( value && value[0]!=0 )
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headers << value;
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else
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headers << "\"\"";
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if( expires )
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headers << "; expires=" << DateToStrCookie(expires) << " GMT";
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headers << "; path=/; domain=." << config->base_server << "\r\n";
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}
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void Request::SetCookie(const char * name, long value, tm * expires)
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{
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headers << "Set-Cookie: " << name << "=" << value;
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if( expires )
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headers << "; expires=" << DateToStrCookie(expires) << " GMT";
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headers << "; path=/; domain=." << config->base_server << "\r\n";
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}
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bool Request::IsPostVar(const char * var)
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{
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PostTab::iterator p;
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p = post_tab.find(var);
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if( p == post_tab.end() )
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return false;
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return true;
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}
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std::string * Request::PostVar(const char * var)
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{
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PostTab::iterator p = post_tab.find(var);
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if( p == post_tab.end() )
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return 0;
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return &(p->second);
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}
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bool Request::PostVar(const char * var, std::string & result)
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{
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PostTab::iterator p = post_tab.find(var);
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if( p == post_tab.end() )
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{
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result.clear();
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return false;
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}
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result = p->second;
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return true;
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}
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//
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void Request::PrintGetTab()
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{
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debug << "get_tab: " << get_tab.size() << "\n";
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for(GetTab::iterator i = get_tab.begin() ; i != get_tab.end() ; ++i)
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debug << " \"" << *i << "\"\n";
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debug << std::endl;
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}
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void Request::PrintEnv()
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{
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char ** e;
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debug << "environment variables:\n";
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for( e = env ; *e ; ++e )
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debug << ' ' << *e << "\n";
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debug << std::endl;
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}
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void Request::PrintIn()
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{
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char buf[100];
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int buf_len = sizeof(buf) / sizeof(char);
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int len;
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debug << "fcgi input:\n";
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do
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{
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len = FCGX_GetStr(buf, buf_len - 1, in);
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if( len != 0 )
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{
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buf[len] = 0;
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debug << buf;
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}
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}
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while( len == buf_len - 1 );
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debug << std::endl;
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}
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const char * Request::SetEnvVar(const char * var)
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{
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const char * v = FCGX_GetParam(var, env);
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if( v )
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return v;
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// char_empty contains '\0'
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return &char_empty;
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}
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void Request::ReadEnvVariables()
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{
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// we store that values because FCGX_GetParam has O(n) complexity
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// with this variables (env_*) we have O(1)
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env_request_method = SetEnvVar("REQUEST_METHOD");
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env_request_uri = SetEnvVar("REQUEST_URI");
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env_http_cookie = SetEnvVar("HTTP_COOKIE");
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env_remote_addr = SetEnvVar("REMOTE_ADDR");
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env_http_host = SetEnvVar("HTTP_HOST");
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env_http_user_agent = SetEnvVar("HTTP_USER_AGENT");
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env_http_accept_encoding = SetEnvVar("HTTP_ACCEPT_ENCODING");
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env_fcgi_role = SetEnvVar("FCGI_ROLE");
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env_content_type = SetEnvVar("CONTENT_TYPE");
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}
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void Request::CheckIE()
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{
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char * msie = strstr(env_http_user_agent, "MSIE");
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if( msie )
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browser_msie = true;
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else
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browser_msie = false;
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}
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void Request::CheckKonqueror()
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{
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char * kon = strstr(env_http_user_agent, "Konqueror");
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if( kon )
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browser_konqueror = true;
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else
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browser_konqueror = false;
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}
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void Request::CheckMethod()
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{
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method = none;
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if( ToSmall(env_request_method[0]) == 'g' )
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method = get;
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else
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if( ToSmall(env_request_method[0]) == 'p' )
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method = post;
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// default we assume 'responder'
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role = responder;
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if( ToSmall(env_fcgi_role[0]) == 'a' )
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role = authorizer;
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}
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bool Request::AllPostVarEmpty()
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{
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PostTab::iterator i;
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for(i=post_tab.begin() ; i!=post_tab.end() ; ++i)
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if( !i->second.empty() )
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return false;
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return true;
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}
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// !! czy te parsery powinny byc skladowymi Request?
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void Request::ReadParameters()
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{
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// !! wrzucic jako skladowa klasy
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GetParser get_parser(env_request_uri, get_tab);
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get_parser.Parse();
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if( method == post )
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{
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if( IsSubStringNoCase("multipart/form-data", env_content_type) )
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{
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log << log3 << "Request: post content type: multipart/form-data" << logend;
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post_multi_parser.SetConfig(config);
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post_multi_parser.Parse(in, post_tab, post_file_tab);
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}
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else
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{
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// !! wrzucic jako skladowa klasy
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PostParser post_parser(in, post_tab);
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post_parser.Parse();
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}
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}
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CookieParser cookie_parser(env_http_cookie, cookie_tab);
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cookie_parser.Parse();
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accept_encoding_parser.Parse(env_http_accept_encoding);
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}
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void Request::StandardLog()
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{
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log.PutDate(log1);
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log << env_remote_addr << ' ' << env_request_method << ' ';
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log << env_http_host << env_request_uri << ' ' << env_http_user_agent << logend;
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}
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// reading everything
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void Request::Read()
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{
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ReadEnvVariables();
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CheckMethod();
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StandardLog();
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ReadParameters();
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CheckIE();
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if( role == authorizer )
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log << log3 << "Request: fast cgi role: authorizer" << logend;
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CheckKonqueror();
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}
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void Request::SendSessionCookie()
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{
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if( !session || session->id==0 )
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return;
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if( !session->puser || !session->remember_me )
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{
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SetCookie(config->http_session_id_name.c_str(), session->id);
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return;
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}
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time_t t = time(0) + config->session_remember_max_idle;
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tm * expires = localtime(&t);
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if( !expires )
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{
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// oops, something wrong
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SetCookie(config->http_session_id_name.c_str(), session->id);
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return;
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}
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SetCookie(config->http_session_id_name.c_str(), session->id, expires);
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}
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void Request::SendHeaders(bool compressing, Header header)
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{
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if( send_as_attachment )
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FCGX_PutS("Content-Disposition: attachment\r\n", out);
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if( !redirect_to.empty() )
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{
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FCGX_PutS("Status: 301 Moved Permanently\r\n", out);
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FCGX_FPrintF(out, "Location: %s\r\n", redirect_to.c_str());
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log << log2 << "Redirect to: " << redirect_to << logend;
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}
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else
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if( !x_sendfile.empty() )
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{
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FCGX_FPrintF(out, "X-LIGHTTPD-send-file: %s\r\n", x_sendfile.c_str());
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FCGX_PutS("Status: 200 OK\r\n", out);
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log << log2 << "Sending file: " << x_sendfile << logend;
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}
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else
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{
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switch(header)
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{
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case h_404:
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FCGX_PutS("Status: 404 Not Found\r\n", out);
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FCGX_PutS("Content-Type: text/html\r\n", out);
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log << log2 << "Request: response: 404 Not Found" << logend;
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break;
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case h_403:
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FCGX_PutS("Status: 403 Forbidden\r\n", out);
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FCGX_PutS("Content-Type: text/html\r\n", out);
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log << log2 << "Request: response: 403 Forbidden" << logend;
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break;
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default:
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FCGX_PutS("Status: 200 OK\r\n", out);
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if( role != authorizer )
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FCGX_PutS("Content-Type: text/html\r\n", out);
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}
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}
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if( compressing )
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FCGX_PutS("Content-Encoding: deflate\r\n", out);
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FCGX_PutS(headers.str().c_str(), out);
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FCGX_PutS("\r\n", out);
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}
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void Request::AddDebugInfo()
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{
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const std::string & d = debug.str();
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if( !d.empty() )
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{
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page << "\n<!--\n";
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page << d;
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page << "\n-->\n";
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}
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}
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// !! to powinno isc do kontrolera app
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void Request::SendPage(bool compressing, const std::string & source_ref)
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{
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const std::string * source = &source_ref;
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bool raw = is_item && item.content_type == Item::ct_raw && status == WINIX_ERR_OK &&
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function && (function->fun.url == "cat" || function->fun.url == "run");
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if( config->html_filter && !raw )
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{
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html_filter.TrimWhite(true);
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html_filter.BreakLines(60);
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html_filter.InsertTabs(2);
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html_filter.CheckOrphans(HTMLFilter::lang_pl, HTMLFilter::orphan_160space);
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html_filter.Filter(*source, clean_html);
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source = &clean_html;
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}
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if( compressing )
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compress.CompressAndPut(source->c_str(), source->length(), out);
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else
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FCGX_PutS(source->c_str(), out);
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}
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void Request::SendAll()
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{
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const std::string & source = page.str();
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Header header = h_200;
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bool compressing = config->compression && role == responder && redirect_to.empty() && x_sendfile.empty() &&
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!browser_msie && !browser_konqueror &&
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accept_encoding_parser.AcceptDeflate() && source.size() >= 512;
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if( status == WINIX_ERR_NO_ITEM || status == WINIX_ERR_NO_FUNCTION || status == WINIX_ERR_UNKNOWN_PARAM )
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header = h_404;
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if( status == WINIX_ERR_PERMISSION_DENIED || status == WINIX_ERR_CANT_CHANGE_USER || status == WINIX_ERR_CANT_CHANGE_GROUP )
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header = h_403;
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SendSessionCookie();
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SendHeaders(compressing, header);
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if( !redirect_to.empty() || !x_sendfile.empty() )
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// if there is a redirect or a file to send then we do not send a content
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return;
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if( header == h_200 && role == authorizer && is_item && item.auth != Item::auth_none )
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// if there is an item and the item has 'file' storage we do not send a content
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return;
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// adding debug info if exists
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AddDebugInfo();
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// sending content
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SendPage(compressing, source);
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}
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bool Request::IsParam(const char * param_name)
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{
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ParamTab::iterator i;
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for(i=param_tab.begin() ; i!=param_tab.end() ; ++i)
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{
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// !! make sure that exists std::string::operator==(const char*)
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// (optimization)
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if( i->name == param_name )
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return true;
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}
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return false;
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}
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const std::string & Request::ParamValue(const char * param_name)
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{
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ParamTab::iterator i;
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for(i=param_tab.begin() ; i!=param_tab.end() ; ++i)
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{
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if( i->name == param_name )
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{
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return i->value;
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}
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}
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return str_empty;
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}
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