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<?php
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3
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require_once(dirname(__FILE__).'/../constants.inc.php');
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4
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5
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class TilesGeneratorException extends Exception {}
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class TilesGeneratorRightsException extends TilesGeneratorException {}
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class TilesGeneratorScriptException extends TilesGeneratorException {}
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8
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class TilesGenerator {
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private $panorama;
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11
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const SCRIPT_RELATIVE_PATH = 'to_tiles/gen_tiles.sh';
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13
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public function __construct($img_path, $panorama) {
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$this->panorama = $panorama;
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$this->img_path = $img_path;
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}
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public function prepare() {
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$err = false;
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$pano_path = $this->panorama->tiles_path();
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if (! is_dir(PANORAMA_PATH)) {
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if (! mkdir(PANORAMA_PATH)) {
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$err = "le répertoire \"PANORAMA_PATH\" n'est pas accessible et ne peut être créé";
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}
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} else {
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if (file_exists($pano_path)) {
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if ($this->panorama->has_tiles()) {
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$err = sprintf("\"%s\" contient déjà un découpage de panorama.",
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$pano_path);
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}
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} else {
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mkdir($pano_path);
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}
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}
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if ($err) {
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throw (new TilesGeneratorRightsException($err));
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}
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}
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public function mk_command() {
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$c = sprintf('%s/%s -p "%s" "%s"',
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CELUTZ_PATH, $this::SCRIPT_RELATIVE_PATH,
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$this->panorama->tiles_prefix(), $this->img_path);
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return escapeshellcmd($c);
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}
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54
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public function process() {
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$err = false;
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if ($fp = popen($this->mk_command(), 'r')) {
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while (!feof($fp)) {
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$results = fgets($fp, 4096);
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if (strlen($results) == 0) {
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61
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flush();
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} else {
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$tok = strtok($results, "\n");
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while ($tok !== false) {
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echo htmlspecialchars(sprintf("%s\n",$tok))."<br/>";
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flush();
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$tok = strtok("\n");
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}
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}
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}
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if (pclose($fp) !== 0) {
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$err = "Opération en échec durant l'exécution du script";
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}
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} else {
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$err = 'Opération en échec à l\'ouverture du script !';
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}
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78
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if ($err) {
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throw (new TilesGeneratorScriptException($err));
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}
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}
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}
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?>
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