606 lines
12 KiB
C++
Executable File
606 lines
12 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) 2010-2013, Tomasz Sowa
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* All rights reserved.
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*
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*/
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#include "functions.h"
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#include "core/log.h"
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#include "core/misc.h"
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#include "core/plugin.h"
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#include "templates/templates.h"
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void Functions::SetConfig(Config * pconfig)
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{
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config = pconfig;
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}
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void Functions::SetCur(Cur * pcur)
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{
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cur = pcur;
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}
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void Functions::SetDb(Db * pdb)
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{
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db = pdb;
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}
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void Functions::SetSystem(System * psystem)
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{
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system = psystem;
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}
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void Functions::SetTemplates(Templates * ptemplates)
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{
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templates = ptemplates;
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}
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void Functions::SetSynchro(Synchro * psynchro)
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{
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synchro = psynchro;
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}
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void Functions::SetSessionManager(SessionManager * pmanager)
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{
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session_manager = pmanager;
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}
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size_t Functions::FunctionsSize()
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{
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return table.size();
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}
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Functions::Iterator Functions::Begin()
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{
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return table.begin();
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}
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Functions::Iterator Functions::End()
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{
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return table.end();
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}
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FunctionBase * Functions::Find(const std::wstring & function_name)
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{
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Table::iterator i = table.find(function_name);
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if( i == table.end() )
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return 0;
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return i->second;
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}
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void Functions::PrepareUrl(Item & item)
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{
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TrimWhite(item.url);
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if( item.url.empty() )
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item.url = item.subject; // if the subject is empty then the url will be corrected by CorrectUrlOnlyAllowedChar()
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CorrectUrlOnlyAllowedChar(item.url);
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if( Find(item.url) )
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{
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// the name provided by an user is the same as a name of a function
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// we add one underscore character at the beginning
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// names of functions should not begin with an underscore '_'
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// and we can simply add one '_' at the beginning
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// and the name will be unique
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item.url.insert(item.url.begin(), '_');
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}
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}
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Error Functions::CheckSpecialFile(const Item & item)
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{
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static std::wstring fstab = L"fstab";
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Item * etc = system->dirs.GetEtcDir();
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if( !etc )
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return WINIX_NOTHING_TO_DO;
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if( item.parent_id != etc->id )
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return WINIX_NOTHING_TO_DO;
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if( item.url == fstab )
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{
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log << log3 << "Functions: reloading mount points" << logend;
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system->mounts.ReadMounts(item.content);
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templates->ReadNewIndexTemplates();
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templates->ReadNewChangeTemplates();
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return WINIX_ERR_OK;
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}
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return WINIX_NOTHING_TO_DO;
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}
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void Functions::SetObjects(FunctionBase * fun)
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{
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fun->SetConfig(config);
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fun->SetCur(cur);
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fun->SetDb(db);
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fun->SetSystem(system);
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fun->SetFunctions(this);
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fun->SetTemplates(templates);
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fun->SetSynchro(synchro);
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fun->SetSessionManager(session_manager);
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}
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void Functions::Add(FunctionBase * fun)
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{
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if( fun->fun.url.empty() )
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{
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log << log1 << "Functions: skipping a function with an empty url" << logend;
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return;
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}
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if( Find(fun->fun.url) )
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{
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log << log1 << "Functions: function " << fun->fun.url << " already exists (skipped)" << logend;
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return;
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}
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SetObjects(fun);
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table[fun->fun.url] = fun;
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}
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void Functions::Add(FunctionBase & fun)
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{
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Add(&fun);
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}
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void Functions::CreateFunctions()
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{
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Add(fun_account);
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Add(fun_adduser);
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Add(fun_cat);
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Add(fun_chmod);
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Add(fun_chown);
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Add(fun_ckeditor);
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Add(fun_cp);
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Add(fun_default);
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Add(fun_download);
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Add(fun_emacs);
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Add(fun_env);
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Add(fun_imgcrop);
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Add(fun_last);
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Add(fun_locale);
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Add(fun_login);
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Add(fun_logout);
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Add(fun_ln);
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Add(fun_ls);
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Add(fun_ipban);
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Add(fun_man);
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Add(fun_meta);
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Add(fun_mkdir);
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Add(fun_mount);
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Add(fun_mv);
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Add(fun_nicedit);
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Add(fun_node);
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Add(fun_passwd);
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Add(fun_priv);
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Add(fun_pw);
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Add(fun_reload);
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Add(fun_rm);
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Add(fun_rmuser);
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Add(fun_run);
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Add(fun_sort);
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Add(fun_special_default);
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Add(fun_stat);
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Add(fun_subject);
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Add(fun_template);
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Add(fun_time_zone);
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Add(fun_tinymce);
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Add(fun_uname);
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Add(fun_upload);
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Add(fun_uptime);
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Add(fun_who);
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Add(fun_vim);
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plugin.Call((Session*)0, WINIX_CREATE_FUNCTIONS);
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}
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void Functions::InitFunctions()
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{
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Table::iterator i = table.begin();
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for( ; i!=table.end() ; ++i)
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i->second->Init();
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}
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void Functions::Init()
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{
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CreateFunctions();
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InitFunctions();
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}
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void Functions::Parse()
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{
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function_parser.UTF8(config->utf8);
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function_parser.Parse(cur, db, this, system);
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}
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void Functions::SetDefaultFunctionForFile()
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{
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if( cur->request->item.file_type != WINIX_ITEM_FILETYPE_NONE )
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cur->request->function = &fun_download;
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else
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if( system->HasReadExecAccess(cur->request->item) )
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cur->request->function = &fun_run;
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else
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cur->request->function = &fun_cat;
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log << log3 << "Functions: default function: " << cur->request->function->fun.url << logend;
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}
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void Functions::SetDefaultFunctionForDir()
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{
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// !! nie potrzebne
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// if( system->mounts.pmount->type == system->mounts.MountTypeThread() )
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// cur->request->function = &fun_thread;
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// else
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cur->request->function = &fun_ls;
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log << log3 << "Functions: default function: " << cur->request->function->fun.url << logend;
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}
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void Functions::SetDefaultFunction()
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{
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cur->request->function = 0;
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plugin.Call(WINIX_SELECT_DEFAULT_FUNCTION);
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if( cur->request->function )
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{
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log << log3 << "Functions: default function: " << cur->request->function->fun.url
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<< " (set by a plugin)" << logend;
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return;
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}
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if( cur->request->is_item )
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SetDefaultFunctionForFile();
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else
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SetDefaultFunctionForDir();
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}
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void Functions::CheckFunctionFollowDir(bool was_default_function)
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{
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// directory with 'default' flag
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if( was_default_function )
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{
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if( cur->request->dir_tab.back()->link_redirect == 1 )
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{
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system->RedirectTo(cur->request->dir_tab.back()->link_to);
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}
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else
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{
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if( system->FollowAllLinks(cur->request->dir_tab.back()->link_to, true, true) )
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SetDefaultFunction();
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}
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}
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}
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void Functions::CheckFunctionFollowSymlink(bool was_default_function)
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{
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if( cur->request->item.link_redirect == 1 )
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{
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if( was_default_function )
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system->RedirectTo(cur->request->item.link_to);
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else
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system->RedirectWithFunctionAndParamsTo(cur->request->item.link_to);
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}
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else
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if( system->FollowAllLinks(cur->request->item.link_to, true, true) )
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{
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if( was_default_function )
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SetDefaultFunction();
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if( cur->request->status == WINIX_ERR_OK && !cur->request->redirect_to.empty() && !was_default_function && cur->request->function )
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{
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// !! nie jestem pewny dodania tej nowej funkcji do redirecta... (sprawdzic to)
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cur->request->redirect_to += '/';
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cur->request->redirect_to += cur->request->function->fun.url;
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system->AddParams(cur->request->param_tab, cur->request->redirect_to, false);
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}
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}
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}
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// making a proper redirection from a directory with 'default' flag
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// or from a symlink (or just loading it if there is no redirection flag set)
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void Functions::CheckFunctionAndSymlink()
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{
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bool was_default_function = false;
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if( !cur->request->function || cur->request->function == &fun_special_default )
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{
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was_default_function = true;
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SetDefaultFunction();
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}
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if( cur->request->status != WINIX_ERR_OK || !cur->request->redirect_to.empty() )
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return;
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if( !cur->request->is_item && !cur->request->dir_tab.back()->link_to.empty() )
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CheckFunctionFollowDir(was_default_function);
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else
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if( cur->request->is_item && cur->request->item.type == Item::symlink && cur->request->function && cur->request->function->follow_symlinks )
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CheckFunctionFollowSymlink(was_default_function);
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}
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void Functions::MakeFunction()
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{
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if( !cur->request->function )
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{
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cur->request->status = WINIX_ERR_NO_FUNCTION;
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log << log1 << "Functions: no function (neither cat nor ls)" << logend;
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return;
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}
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if( !system->DirsHaveReadExecPerm() ||
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!system->HasReadExecAccess(cur->request->function->fun) ||
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!cur->request->function->HasAccess() )
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{
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cur->request->status = WINIX_ERR_PERMISSION_DENIED;
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return;
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}
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if( cur->request->method == Request::get )
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{
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if( cur->request->redirect_to.empty() )
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cur->request->function->MakeGet();
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}
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else
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if( cur->request->method == Request::post )
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{
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// we don't use post with redirecting (the post variables would be lost)
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if( cur->request->redirect_to.empty() )
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cur->request->function->MakePost();
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else
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cur->request->status = WINIX_ERR_PERMISSION_DENIED;
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}
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else
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if( cur->request->method == Request::head )
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{
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// do nothing
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}
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else
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log << log1 << "Functions: unknown request method (skipping)" << logend;
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}
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void Functions::CheckGetPostTimes(time_t difference)
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{
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time_t now = std::time(0);
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if( cur->session->puser )
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return;
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if( cur->request->method != Request::post )
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return;
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if( now - cur->session->last_time_get >= (time_t)difference )
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return;
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if( cur->request->AllPostVarEmpty() )
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return;
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cur->session->spam_score += 1;
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log << log1 << "Functions: spam +1: POST after GET sent too fast" << logend;
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}
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// !!uwaga zwracana warto<74><6F> zmieniona (true/false)
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bool Functions::CheckAbuse()
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{
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if( !system->rebus.CheckRebus() )
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{
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cur->request->status = WINIX_ERR_INCORRECT_REBUS;
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return true;
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}
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CheckGetPostTimes();
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if( cur->session->spam_score > 0 )
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{
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cur->request->status = WINIX_ERR_SPAM;
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log << log1 << "Functions: ignoring due to suspected spamming" << logend;
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return true;
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}
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return false;
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}
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// returning true if the 'url' has to be changed
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void Functions::ReadItemUrlSubject(Item & item, Item::Type item_type)
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{
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std::wstring * new_subject = cur->request->PostVarp(L"subject");
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std::wstring * new_url = cur->request->PostVarp(L"url");
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if( new_subject )
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item.subject = *new_subject;
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if( item.subject.empty() )
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{
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item.subject = cur->request->dir_tab.back()->subject;
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item.subject += L"_msg_";
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Toa(db->Size(cur->request->dir_tab.back()->id, Item::file), item.subject, 10, false);
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}
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if( new_url )
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item.url = *new_url;
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// if item.url is empty then it will be set from item.subject
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PrepareUrl(item);
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}
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void Functions::ReadItemFilterHtml(Item & item)
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{
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html_filter.BreakWord(0);
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html_filter.WrapLine(0);
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html_filter.TrimWhite(false);
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html_filter.InsertTabs(0);
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html_filter.SafeMode(true);
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html_filter.ClearOrphans();
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html_filter.Filter(cur->request->PostVar(L"itemcontent"), item.content);
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}
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void Functions::ReadItemContent(Item & item, const std::wstring & content_type)
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{
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bool is_root = cur->session->puser && cur->session->puser->super_user;
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bool filter_html = (content_type == L"2") && config->editors_html_safe_mode;
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if( filter_html && is_root && config->editors_html_safe_mode_skip_root )
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filter_html = false;
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if( filter_html )
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ReadItemFilterHtml(item);
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else
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cur->request->PostVar(L"itemcontent", item.content);
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}
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void Functions::ReadItemContentWithType(Item & item)
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{
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item.content_type = Item::ct_formatted_text; // default is formatted text
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cur->request->PostVar(L"contenttype", temp);
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ReadItemContent(item, temp);
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// ct_text and ct_formatted_text can use everyone
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if( temp == L"0" )
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item.content_type = Item::ct_text;
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else
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if( temp == L"1" )
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item.content_type = Item::ct_formatted_text;
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// those below need special privileges
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if( !cur->session->puser )
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return;
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long user_id = cur->session->puser->id;
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if( temp == L"2" )
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{
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if( system->CanUseHtml(user_id) )
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item.content_type = Item::ct_html;
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}
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else
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if( temp == L"3" )
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{
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if( system->CanUseBBCode(user_id) )
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item.content_type = Item::ct_bbcode;
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}
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else
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if( temp == L"4" )
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{
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if( system->CanUseRaw(user_id) )
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item.content_type = Item::ct_raw;
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}
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}
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// item_type - the type of an item you are expecting to read
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// returns true if the url has to be changed
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// at the moment this is only checked for Item::file - for Item::dir it returns always true
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// !! zmienic nazwe na ReadUrlSubjectContent
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void Functions::ReadItem(Item & item, Item::Type item_type)
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{
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if( item_type == Item::none )
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return;
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item.type = item_type;
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item.parent_id = cur->request->dir_tab.back()->id; // !! moze to dac jako parametr?
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ReadItemUrlSubject(item, item_type);
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if( item_type == Item::file )
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ReadItemContentWithType(item);
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}
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void Functions::SetUser(Item & item)
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{
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if( cur->session && cur->session->puser )
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{
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item.user_id = cur->session->puser->id;
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item.guest_name.clear();
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}
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else
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{
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item.user_id = -1;
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cur->request->PostVar(L"guestname", item.guest_name);
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}
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item.group_id = cur->request->dir_tab.back()->group_id;
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}
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