154 lines
7.8 KiB
PHP
154 lines
7.8 KiB
PHP
<?php
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namespace SYSTEM\API;
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class api {
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const ROOT_PARENTID = -1;
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const DEFAULT_GROUP = 0;
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public static function run($verifyclassname,$apiclassname,$params,$group = self::DEFAULT_GROUP,$strict = true,$default = false){
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//Verify Class
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if(!class_exists($verifyclassname)){
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throw new \SYSTEM\LOG\ERROR("Verify Class given to the api does not exist: '".$verifyclassname."'");}
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//API Class
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if(!class_exists($apiclassname)){
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throw new \SYSTEM\LOG\ERROR("API Class given to the api does not exist: '".$apiclassname."'");}
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//check parameters
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if( !isset($params) || !is_array($params) || count($params) <= 0){
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if($default){
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return \call_user_func(array($apiclassname,'default_page'));}
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throw new \SYSTEM\LOG\ERROR("No call given for the api");}
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//Get the Databasetree
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$tree = self::getApiTree($group);
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if(!isset($tree) || !is_array($tree) || count($tree) <= 0){
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throw new \SYSTEM\LOG\ERROR("Database Tree for Api empty - cannot proced! GROUP: ".$group);}
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//Commands
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$commands = array();
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$parentid = self::ROOT_PARENTID;
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foreach($tree as $item){
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if( (intval($item[\SYSTEM\DBD\APITable::FIELD_TYPE]) == \SYSTEM\DBD\APITable::VALUE_TYPE_COMMAND ||
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intval($item[\SYSTEM\DBD\APITable::FIELD_TYPE]) == \SYSTEM\DBD\APITable::VALUE_TYPE_COMMAND_FLAG) &&
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intval($item[\SYSTEM\DBD\APITable::FIELD_PARENTID]) == $parentid &&
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isset($params[$item[\SYSTEM\DBD\APITable::FIELD_NAME]])){
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//check parent value
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if( isset($item[\SYSTEM\DBD\APITable::FIELD_PARENTVALUE]) &&
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$commands[count($commands)-1][1] != $item[\SYSTEM\DBD\APITable::FIELD_PARENTVALUE]){
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continue;}
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$commands[] = array($item,$params[$item[\SYSTEM\DBD\APITable::FIELD_NAME]]);
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$parentid = intval($item[\SYSTEM\DBD\APITable::FIELD_ID]);
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}
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}
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if(count($commands) <= 0){
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return \call_user_func(array($apiclassname,'default_page'));}
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//Parameters
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$parameters = array();
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$parentid = $commands[count($commands)-1][0];
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$parentid = $parentid[\SYSTEM\DBD\APITable::FIELD_ID];
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foreach($tree as $item){
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if( intval($item[\SYSTEM\DBD\APITable::FIELD_TYPE]) == \SYSTEM\DBD\APITable::VALUE_TYPE_PARAM &&
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intval($item[\SYSTEM\DBD\APITable::FIELD_PARENTID]) == $parentid){
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//check parent value
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if( isset($item[\SYSTEM\DBD\APITable::FIELD_PARENTVALUE]) &&
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$commands[count($commands)-1][1] != $item[\SYSTEM\DBD\APITable::FIELD_PARENTVALUE]){
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continue;}
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//all parameters are required
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if(!isset($params[$item[\SYSTEM\DBD\APITable::FIELD_NAME]])){
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throw new \SYSTEM\LOG\ERROR('Parameter missing: '.$item[\SYSTEM\DBD\APITable::FIELD_NAME]);}
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//verify parameter
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if( !method_exists($verifyclassname, $item[\SYSTEM\DBD\APITable::FIELD_VERIFY]) ||
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!call_user_func(array($verifyclassname,$item[\SYSTEM\DBD\APITable::FIELD_VERIFY]),$params[$item[\SYSTEM\DBD\APITable::FIELD_NAME]])){
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throw new \SYSTEM\LOG\ERROR('Parameter type missmacht or Missing Verifier. Param: '.$item[\SYSTEM\DBD\APITable::FIELD_NAME].' Verifier: '.$item[\SYSTEM\DBD\APITable::FIELD_VERIFY]);}
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$parameters[] = array($item, $params[$item[\SYSTEM\DBD\APITable::FIELD_NAME]]);
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}
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}
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//Opt Parameters
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$parameters_opt = array();
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$parentid = $commands[count($commands)-1][0];
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$parentid = $parentid[\SYSTEM\DBD\APITable::FIELD_ID];
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foreach($tree as $item){
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if( intval($item[\SYSTEM\DBD\APITable::FIELD_TYPE]) == \SYSTEM\DBD\APITable::VALUE_TYPE_PARAM_OPT &&
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intval($item[\SYSTEM\DBD\APITable::FIELD_PARENTID]) == $parentid){
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//check parent value
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if( isset($item[\SYSTEM\DBD\APITable::FIELD_PARENTVALUE]) &&
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$commands[count($commands)-1][1] != $item[\SYSTEM\DBD\APITable::FIELD_PARENTVALUE]){
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continue;}
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//all parameters are NOT required - just continue
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if(!isset($params[$item[\SYSTEM\DBD\APITable::FIELD_NAME]])){
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continue;}
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//verify parameter
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if( !method_exists($verifyclassname, $item[\SYSTEM\DBD\APITable::FIELD_VERIFY]) ||
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!call_user_func(array($verifyclassname,$item[\SYSTEM\DBD\APITable::FIELD_VERIFY]),$params[$item[\SYSTEM\DBD\APITable::FIELD_NAME]])){
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throw new \SYSTEM\LOG\ERROR('Parameter type missmacht or Missing Verifier. Param: '.$item[\SYSTEM\DBD\APITable::FIELD_NAME].' Verifier: '.$item[\SYSTEM\DBD\APITable::FIELD_VERIFY]);}
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$parameters_opt[] = array($item, $params[$item[\SYSTEM\DBD\APITable::FIELD_NAME]]);
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}
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}
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//strict check
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if( $strict &&
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count($params) != (count($parameters) + count($commands) + count($parameters_opt)) ){
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throw new \SYSTEM\LOG\ERROR('Unhandled or misshandled parameters - api query is invalid: '.$_SERVER["REQUEST_URI"]);}
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//Function Name
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$call_funcname = "";
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foreach($commands as $com){
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if(!\preg_match('^[0-9A-Za-z_]+$^', $com[1])){
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throw new \SYSTEM\LOG\ERROR('Call Command can only have letters!');}
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if($com[0][\SYSTEM\DBD\APITable::FIELD_TYPE] == \SYSTEM\DBD\APITable::VALUE_TYPE_COMMAND_FLAG){
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$call_funcname .= '_flag_'.$com[0][\SYSTEM\DBD\APITable::FIELD_NAME];
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} else {
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$call_funcname .= '_'.$com[0][\SYSTEM\DBD\APITable::FIELD_NAME].'_'.\strtolower($com[1]);}
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}
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$call_funcname = substr($call_funcname, 1); //strip leading _
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//Function parameters
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$call_funcparam = array();
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foreach($parameters as $param){
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$call_funcparam[] = $param[1];}
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//Optional Function Parameters
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foreach($parameters_opt as $param){
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$call_funcparam[] = $param[1];}
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//Does function exist
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if(!\method_exists($apiclassname, $call_funcname)){
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if($default){
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return \call_user_func(array($apiclassname,'default_page'));}
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throw new \SYSTEM\LOG\ERROR("API call is not implemented in API: ".$call_funcname);}
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//Call Function
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return \call_user_func_array(array($apiclassname,$call_funcname),$call_funcparam);
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}
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private static function getApiTree($group){
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$con = new \SYSTEM\DB\Connection(\SYSTEM\system::getSystemDBInfo());
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if(\SYSTEM\system::isSystemDbInfoPG()){
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$res = $con->query('SELECT * FROM '.\SYSTEM\DBD\APITable::NAME_PG .' WHERE "'.\SYSTEM\DBD\APITable::FIELD_GROUP.'" = '.$group.' ORDER BY "'.\SYSTEM\DBD\APITable::FIELD_ID.'"');
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} else {
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$res = $con->query('SELECT * FROM '.\SYSTEM\DBD\APITable::NAME_MYS.' WHERE `'.\SYSTEM\DBD\APITable::FIELD_GROUP.'` = '.$group.' ORDER BY '.\SYSTEM\DBD\APITable::FIELD_ID);
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}
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if(!$res){
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throw new \SYSTEM\LOG\ERROR('Database Error '.pg_last_error($con));}
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$result = array();
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while($row = $res->next()){
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$result[] = $row;}
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return $result;
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}
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} |