430 lines
7.3 KiB
C++
430 lines
7.3 KiB
C++
/*
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* This file is a part of Winix
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* and is distributed under the 2-Clause BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2008-2021, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "functionparser.h"
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#include "core/log.h"
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#include "core/error.h"
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#include "functions.h"
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#include "utf8/utf8.h"
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#include "models/item.h"
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namespace Winix
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{
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FunctionParser::FunctionParser()
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{
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}
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bool FunctionParser::Parse(Cur * pcur, Db * pdb, Functions * pfunctions, System * psystem)
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{
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db = pdb;
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cur = pcur;
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system = psystem;
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functions = pfunctions;
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last_dir = 0;
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path = cur->request->env_request_uri.c_str();
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ParseDirsItemFunction();
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ParseParams();
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ParseAnchor();
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return cur->request->status == WINIX_ERR_OK;
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}
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void FunctionParser::ParseDirsItemFunction()
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{
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if( !AddRootDir() )
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return;
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ReadName();
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while( IsDir() )
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{
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AddDir();
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ReadName();
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}
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if( name.empty() )
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return;
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if( CheckAddFunction() )
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return;
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if( CheckAddItem() )
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{
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ReadName();
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if( !name.empty() )
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{
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CheckAddFunction();
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if( !cur->request->function )
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{
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log << log3 << "FP: unknown function: " << name << logend;
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cur->request->status = WINIX_ERR_NO_ITEM;
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}
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}
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}
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}
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bool FunctionParser::AddRootDir()
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{
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last_dir = system->dirs.GetRootDir();
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if( !last_dir )
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{
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log << log3 << "FP: there is not a root directory" << logend;
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cur->request->status = WINIX_ERR_INTERNAL_ERROR;
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return false;
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}
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AddDir();
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return true;
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}
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bool FunctionParser::IsDir()
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{
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// directory names should not be empty
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if( name.empty() || !last_dir )
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return false;
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last_dir = system->dirs.GetDir(name, last_dir->id);
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return last_dir != 0;
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}
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bool FunctionParser::CheckAddItem()
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{
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// cur->request->dir_tab has at least one element
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long parent_id = cur->request->dir_tab.back()->id;
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morm::Finder<Item> finder(model_connector);
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finder.
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select().
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where().
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eq(L"parent_id", parent_id).
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eq(L"url", name).
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get(cur->request->item);
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//Error status = db->GetItem(parent_id, name, cur->request->item);
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//if( status == WINIX_ERR_OK )
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if( cur->request->item.found() )
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{
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log << log3 << "FP: Item: id: " << cur->request->item.id << ", url: " << cur->request->item.url << logend;
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cur->request->last_item = &cur->request->item;
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cur->request->is_item = true;
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return true;
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}
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else
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{
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log << log3 << "FP: No Item: url: " << name << logend;
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cur->request->status = WINIX_ERR_NO_ITEM;
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return false;
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}
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log << log1 << "FP: db error" << logend;
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cur->request->status = WINIX_ERR_INTERNAL_ERROR;
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return false;
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}
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bool FunctionParser::CheckAddFunction()
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{
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cur->request->function = functions->Find(name);
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if( cur->request->function )
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{
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log << log3 << "FP: Function: " << cur->request->function->fun.url << 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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void FunctionParser::AddDir()
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{
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cur->request->dir_tab.push_back( last_dir );
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log << log3 << "FP: Directory: ";
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if( last_dir->parent_id == -1 )
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log << "(root)" << logend;
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else
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log << last_dir->url << logend;
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cur->request->last_item = cur->request->dir_tab.back();
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}
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void FunctionParser::ParseParams()
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{
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SkipSlashes();
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if( *path == '#' )
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{
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// there are not any parameters
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return;
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}
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if( *path == '?' )
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ParseOrdinaryParams();
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else
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ParseWinixParams();
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}
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void FunctionParser::ParseOrdinaryParams()
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{
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if( *path == '?' )
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path += 1;
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do
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{
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ReadOrdinaryParName();
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if( name.empty() )
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break;
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ReadOrdinaryParValue();
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if( *path == '&' )
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path += 1;
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AddParam();
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}
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while( true );
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}
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void FunctionParser::ParseWinixParams()
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{
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do
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{
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SkipSlashes();
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ReadWinixParName();
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if( name.empty() )
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break;
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ReadWinixParValue();
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AddParam();
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}
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while( true );
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}
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void FunctionParser::AddParam()
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{
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param.name = name;
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param.value = value;
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cur->request->param_tab.push_back(param);
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log << log3 << "FP: Param: name=" << param.name;
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if( !param.value.empty() )
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log << ", value=" << param.value;
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log << logend;
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}
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void FunctionParser::ParseAnchor()
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{
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if( *path == 0 )
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return;
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if( *path != '#' )
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{
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cur->request->status = WINIX_ERR_INCORRECT_URI;
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return;
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}
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path += 1;
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name_ascii.clear();
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while( *path )
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name_ascii += GetChar();
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pt::utf8_to_wide(name_ascii, cur->request->anchor);
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if( !cur->request->anchor.empty() )
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log << log3 << "FP: anchor: " << cur->request->anchor << logend;
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}
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void FunctionParser::SkipSlashes()
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{
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while( *path == '/' )
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path += 1;
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}
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int FunctionParser::FromHex(int c)
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{
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if( c>='0' && c<='9' )
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return c - '0';
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else
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if( c>='a' && c<='f' )
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return c - 'a' + 10;
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else
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if( c>='A' && c<='F' )
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return c - 'A' + 10;
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else
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cur->request->status = WINIX_ERR_INCORRECT_URI;
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return 0;
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}
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int FunctionParser::GetChar()
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{
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int c;
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if( *path == 0 )
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return 0;
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if( *path == '%' && *(path+1)!=0 && *(path+2)!=0 )
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{
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c = (FromHex(*(path+1)) << 4) + FromHex(*(path+2));
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if( c == 0 )
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cur->request->status = WINIX_ERR_INCORRECT_URI;
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path += 3;
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}
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else
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if( *path == '+' )
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{
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c = ' ';
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path += 1;
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}
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else
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{
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c = *path;
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path += 1;
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}
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return c;
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}
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void FunctionParser::ReadName()
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{
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SkipSlashes();
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name_ascii.clear();
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while( *path && *path!='/' && *path!='?' && *path!='#' )
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name_ascii += GetChar();
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pt::utf8_to_wide(name_ascii, name);
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}
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void FunctionParser::ReadOrdinaryParName()
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{
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name_ascii.clear();
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while( *path && *path!='=' && *path!='&' && *path!='#' )
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name_ascii += GetChar();
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pt::utf8_to_wide(name_ascii, name);
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}
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void FunctionParser::ReadOrdinaryParValue()
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{
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value_ascii.clear();
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if( *path=='=' )
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path += 1;
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while( *path && *path!='&' && *path!='#' )
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value_ascii += GetChar();
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pt::utf8_to_wide(value_ascii, value);
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}
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void FunctionParser::ReadWinixParName()
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{
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name_ascii.clear();
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while( *path && *path!='/' && *path!=':' && *path!='#' )
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name_ascii += GetChar();
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pt::utf8_to_wide(name_ascii, name);
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}
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void FunctionParser::ReadWinixParValue()
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{
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value_ascii.clear();
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if( *path == ':' )
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path += 1;
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while( *path && *path!='/' && *path!='#' )
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value_ascii += GetChar();
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pt::utf8_to_wide(value_ascii, value);
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}
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} // namespace Winix
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