the first part of reimplementing has been done
now we have app object and singletons are only: log logn plugin and app git-svn-id: svn://ttmath.org/publicrep/winix/trunk@628 e52654a7-88a9-db11-a3e9-0013d4bc506e
This commit is contained in:
316
functions/privchanger.cpp
Executable file
316
functions/privchanger.cpp
Executable file
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/*
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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, Tomasz Sowa
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* All rights reserved.
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*
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*/
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#include "privchanger.h"
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void PrivChanger::SetRequest(Request * prequest)
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{
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request = prequest;
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}
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void PrivChanger::SetSystem(System * psystem)
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{
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system = psystem;
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}
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void PrivChanger::SetDb(Db * pdb)
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{
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db = pdb;
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}
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bool PrivChanger::CheckAccess()
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{
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// we do not check permissions here
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// permissions depends on the user, group, and privileges
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// but we cannot use parameter 'r' on files
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// and only logged users can change permissions
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if( !request->session->puser || (request->is_item && request->IsParam("r")) )
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{
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request->status = WINIX_ERR_PERMISSION_DENIED;
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return false;
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}
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return true;
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}
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bool PrivChanger::ChangeOwner(Item & item, long user_id, long group_id)
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{
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if( user_id!=item.user_id || group_id!=item.group_id )
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{
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if( !system->CanChangeUser(item, user_id) )
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{
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log << log3 << "Content: can't change the user" << logend;
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return false;
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}
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if( !system->CanChangeGroup(item, group_id) )
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{
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log << log3 << "Content: can't change the group" << logend;
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return false;
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}
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}
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item.user_id = user_id;
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item.group_id = group_id;
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return true;
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}
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bool PrivChanger::ChangePrivileges(Item & item, int privileges)
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{
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if( privileges != item.privileges )
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{
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if( !system->CanChangePrivileges(item, privileges) )
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{
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log << log3 << "Content: can't change privileges" << logend;
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return false;
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}
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}
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item.privileges = privileges;
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return true;
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}
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void PrivChanger::ChangePriv(Item & item, long user_id, long group_id, int privileges)
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{
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if( change_owner )
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{
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if( !ChangeOwner(item, user_id, group_id) )
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return;
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}
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if( change_priv )
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{
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if( !ChangePrivileges(item, privileges) )
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return;
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}
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request->status = db->EditPrivById(item, item.id);
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}
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void PrivChanger::PrivLogStart(const char * what, long user, long group, int priv)
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{
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log << log2 << what;
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if( change_owner )
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{
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User * puser = system->users.GetUser(user);
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Group * pgroup = system->groups.GetGroup(group);
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log << "new user: ";
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if( puser )
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log << puser->name;
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else
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log << "id: " << user;
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log << ", new group: ";
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if( pgroup )
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log << pgroup->name;
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else
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log << "id: " << group;
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if( change_priv )
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log << ", ";
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}
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if( change_priv )
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{
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char buf[30];
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sprintf(buf, "0%o", priv);
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log << "privileges: " << buf;
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}
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log << logend;
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}
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void PrivChanger::PrivLog(const char * what, long id, const std::string & url)
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{
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Item * root = 0;
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if( id != -1 )
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root = system->dirs.GetRootDir();
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log << log3 << "Content: " << what;
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if( root && root->id == id )
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log << "(root)";
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else
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log << url;
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log << logend;
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}
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void PrivChanger::PrivFilesInDir(long parent_id)
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{
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Db::ItemQuery iq;
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iq.SetAll(false, false);
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iq.sel_user_id = iq.sel_group_id = iq.sel_guest_name = iq.sel_privileges = true;
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iq.WhereParentId(parent_id);
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iq.WhereType(Item::file);
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db->GetItems(request->item_table, iq);
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std::vector<Item>::iterator i = request->item_table.begin();
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for( ; i != request->item_table.end() ; ++i)
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{
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PrivLog("changed file: ", -1, i->url);
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ChangePriv(*i, user_id_file, group_id_file, priv_file);
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}
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}
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// recurrence
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void PrivChanger::PrivDir(long parent_id)
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{
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PrivFilesInDir(parent_id);
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DirContainer::ParentIterator i = system->dirs.FindFirstParent(parent_id);
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for( ; i != system->dirs.ParentEnd() ; i = system->dirs.NextParent(i) )
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{
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PrivLog("changed dir: ", -1, i->second->url);
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ChangePriv(*(i->second), user_id_dir, group_id_dir, priv_dir);
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if( subdirectories )
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PrivDir(i->second->id);
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}
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}
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bool PrivChanger::ReadPriv(const char * user_in, const char * group_in, const char * priv_in,
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long & user_id, long & group_id, int & priv)
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{
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std::string * user_str = request->PostVar(user_in);
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std::string * group_str = request->PostVar(group_in);
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std::string * priv_str = request->PostVar(priv_in);
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if( change_owner && (!user_str || !group_str) )
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{
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log << log1 << "Content: PostFunPriv: there is no some post variables for changing the owner" << logend;
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return false;
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}
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if( change_priv && !priv_str )
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{
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log << log1 << "Content: PostFunPriv: there is no some post variables for changing privileges" << logend;
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return false;
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}
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if( change_owner )
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{
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user_id = system->users.GetUserId( *user_str );
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group_id = system->groups.GetGroupId( *group_str );
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}
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if( change_priv )
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priv = strtol( priv_str->c_str() , 0, 8);
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return true;
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}
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void PrivChanger::PrivDir()
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{
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if( !ReadPriv("userfile", "groupfile", "privilegesfile", user_id_file, group_id_file, priv_file) )
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return;
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if( !ReadPriv("userdir", "groupdir", "privilegesdir", user_id_dir, group_id_dir, priv_dir) )
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return;
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PrivLogStart("Content: changes for files: ", user_id_file, group_id_file, priv_file);
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PrivLogStart("Content: changes for dirs: ", user_id_dir, group_id_dir, priv_dir);
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if( request->IsPostVar("changecurrentdir") )
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{
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Item & last_dir = *request->dir_table.back();
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PrivLog("changed dir: ", last_dir.id, last_dir.url);
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ChangePriv(*request->dir_table.back(), user_id_dir, group_id_dir, priv_dir);
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}
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subdirectories = request->IsPostVar("changesubdirs");
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// go through all directories
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PrivDir(request->dir_table.back()->id);
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system->RedirectToLastDir();
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}
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// changing only one item (either a dir or file)
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void PrivChanger::PrivOneItem()
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{
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if( !ReadPriv("user", "group", "privileges", user_id_file, group_id_file, priv_file) )
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return;
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PrivLogStart("Content: changes: ", user_id_file, group_id_file, priv_file);
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if( request->is_item )
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{
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ChangePriv(request->item, user_id_file, group_id_file, priv_file);
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system->RedirectTo(request->item);
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}
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else
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{
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ChangePriv(*request->dir_table.back(), user_id_file, group_id_file, priv_file);
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system->RedirectToLastDir();
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}
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}
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void PrivChanger::Change(bool change_owner_, bool change_priv_)
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{
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if( !CheckAccess() )
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return;
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change_owner = change_owner_;
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change_priv = change_priv_;
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if( request->IsParam("r") )
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{
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PrivDir();
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}
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else
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{
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PrivOneItem();
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}
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system->dirs.CheckRootDir();
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}
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