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dpavlin |
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<?php |
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/* |
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+----------------------------------------------------------------------+ |
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| Classe Swish | |
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+----------------------------------------------------------------------+ |
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| php4 - 2001 | |
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+----------------------------------------------------------------------+ |
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| La classe Swish permet d'interroger swish-e | |
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| Cette classe supporte le passage des nombreux arguments de | |
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| swish-e et retourne un tableau de résultats ainsi que diverses | |
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| informations. | |
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+----------------------------------------------------------------------+ |
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| Auteur: Olivier Meunier | |
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| Version: 1.1 | |
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+----------------------------------------------------------------------+ |
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*/ |
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class swish |
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{ |
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/** |
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* Déclarations des proriétés |
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*/ |
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var $str_engine = "/data/swish/swish-e"; //Ligne de commande |
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var $str_index_file; |
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var $str_separator = '@@@@@'; |
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var $words; |
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var $get_params; |
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var $sort_params; |
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var $first_result; |
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var $num_results; |
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var $number_results; |
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var $search_time; |
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var $run_time; |
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//Les noms des champs titre, url et score sont modifiables |
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var $titre_ligne = "TITLE"; |
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var $url_ligne = "URL"; |
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var $score_ligne = "SCORE"; |
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var $nr = "NR"; |
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var $err = FALSE; |
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/** |
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* Constructeur |
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* |
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* @str_index_file string Chemin du fichier d'index |
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* @str_engine string Chemin pour le moteur |
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* |
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* return void |
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*/ |
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function swish($str_index_file,$str_engine="") |
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{ |
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$this->str_index_file = $str_index_file; |
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if ($str_engine != "") |
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$this->str_engine = $str_engine; |
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} |
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/** |
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* Méthode: set_params |
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* |
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* @words string Chaine recherchée |
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* @get_params array Tableau des paramètres |
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* @sort_params string Paramètre de tri |
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* @first_result integer Indice du premier résultat |
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* @num_resultse integer Nombre max de résultats |
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* |
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* return void |
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*/ |
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function set_params($words, $get_params=array(), $sort_params="", $first_result="", $num_results="") |
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{ |
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$this->words = $words; |
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$this->get_params = $get_params; |
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$this->sort_params = $sort_params; |
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$this->first_result = $first_result; |
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$this->num_results = $num_results; |
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} |
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/** |
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* Méthode: exec_swish |
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* |
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* return void |
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*/ |
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function exec_swish() |
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{ |
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//Prépare la ligne de commande |
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$cmd = $this->str_engine." ". |
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' -f '.$this->str_index_file. |
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' -w "'.escapeshellcmd($this->words).'"'. |
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' -d '.$this->str_separator; |
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//Ajout du paramètre -p si il y a des paramètres |
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if(count($this->get_params) > 0) |
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{ |
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$ligne_params = implode(" ",$this->get_params); |
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$cmd .= " -p ".$ligne_params; |
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} |
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//Ajout du paramètre de tri s'il existe |
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if($this->sort_params != "") { |
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$cmd .= " -s ".$this->sort_params; |
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} |
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//Ajout du paramètre -b pour démarrer au résultat n |
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if($this->first_result != "") { |
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$cmd .= " -b ".$this->first_result; |
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} |
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//Ajout du paramètre -m pour s'arrêter à n lignes |
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if($this->num_results != "") { |
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$cmd .= " -m ".$this->num_results; |
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} |
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//La commande est prete, on l'éxécute |
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$this->cmd = $cmd; |
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exec($cmd,$this->arry_swish); |
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//Le résultat est stockée dans $this->arry_swish |
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} |
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/** |
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* Traitement du résultat |
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* |
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* return void |
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*/ |
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function make_result() |
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{ |
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$i=0; |
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//On passe en revue chaque ligne du tableau |
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foreach($this->arry_swish as $value) |
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{ |
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//Si on trouve une ligne qui commence par "err", on arrête tout et |
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//on initialise la propriété $err |
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if(ereg("^err",$value)) |
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{ |
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$this->err = TRUE; |
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dpavlin |
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if(ereg("^err: no results$",$value)) { |
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$this->number_results = -1; |
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$this->search_time = 0; |
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$this->run_time = 0; |
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} |
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dpavlin |
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break 1; |
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} |
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//Dans les lignes d'info, on récupère le nombre de résultats |
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if(ereg("^# Number of hits: ([0-9]*)",$value,$Tnb)) { |
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$this->number_results = $Tnb[1]; |
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} |
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if(ereg("^# Search time: ([0-9\.]*)",$value,$Tnb)) { |
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$this->search_time = $Tnb[1]; |
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} |
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if(ereg("^# Run time: ([0-9\.]*)",$value,$Tnb)) { |
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$this->run_time = $Tnb[1]; |
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} |
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//Ligne de résultats |
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if(!ereg("^[.#]",$value)) |
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{ |
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//On passe en tableau tous les champs |
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$arry_tmp = explode($this->str_separator,$value); |
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//On récupère le score, l'url et le titre |
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$arry_int[$this->score_ligne] = $arry_tmp[0]; |
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$arry_int[$this->url_ligne] = $arry_tmp[1]; |
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$arry_int[$this->titre_ligne] = $arry_tmp[2]; |
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$arry_int['DOCSIZE'] = $arry_tmp[3]; |
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$arry_int[$this->nr] = $this->first_result+$i+1; |
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//Traitement des propriétés |
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reset($this->get_params); |
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for($j=4; $j<count($arry_tmp); $j++) |
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{ |
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$arry_int[key($this->get_params)] = $arry_tmp[$j]; |
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next($this->get_params); |
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} |
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$this->arry_res[$i] = $arry_int; |
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$i++; |
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} |
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} |
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} |
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/** |
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* Execution complète |
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* |
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* return array Tableau associatif de résultats |
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*/ |
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function get_result() |
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{ |
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$this->exec_swish(); |
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$this->make_result(); |
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return $this->arry_res; |
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} |
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}//Fin de la classe |
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?> |
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