Changes a lot... forgot to commit.

src/_h5ai/php/inc/H5ai.php

@@ -0,0 +1,303 @@
+<?php
+
+require_once "Cache.php";
+
+class H5ai {
+    private static $VIEWMODES = array("details", "icons");
+
+    private $docRoot, $h5aiRoot, $h5aiAbsHref, $domain,
+            $config, $options, $types, $langs,
+            $cache,
+            $absHref, $absPath,
+            $ignore, $ignoreRE,
+            $view;
+
+    public function __construct() {
+
+        global $H5AI_CONFIG;
+
+        $this->docRoot = $H5AI_CONFIG["DOCUMENT_ROOT"];
+        $this->h5aiRoot = $H5AI_CONFIG["H5AI_ROOT"];
+        $this->ignore = $H5AI_CONFIG["IGNORE"];
+        $this->ignoreRE = $H5AI_CONFIG["IGNORE_PATTERNS"];
+
+        $this->config = $this->loadConfig($this->h5aiRoot . "/config.js");
+        $this->options = $this->config["options"];
+        $this->types = $this->config["types"];
+        $this->langs = $this->config["langs"];
+
+        $this->cache = new Cache($this->h5aiRoot . "/cache");
+
+        $this->hrefRoot = $this->options["rootAbsHref"];
+        $this->h5aiAbsHref = $this->options["h5aiAbsHref"];
+        $this->domain = getenv("HTTP_HOST");
+
+        $this->absHref = $this->normalizePath(preg_replace('/\\?.*/', '', getenv("REQUEST_URI")), true);
+        $this->absPath = $this->getAbsPath($this->absHref);
+
+        $this->view = $this->options["viewmodes"][0];
+        if (!in_array($this->view, H5ai::$VIEWMODES)) {
+            $this->view = H5ai::$VIEWMODES[0];
+        }
+    }
+
+
+    private function loadConfig($file) {
+
+        $str = file_exists($file) ? file_get_contents($file) : "";
+
+        // remove comments and change expression to pure json
+        $str = preg_replace("/\/\*.*?\*\//s", "", $str);
+        $str = preg_replace("/^.*H5AI_CONFIG\s*=\s*/s", "", $str);
+        $str = preg_replace("/;.*/s", "", $str);
+        $config = json_decode($str, true);
+
+        return $config;
+    }
+
+
+    public function getDocRoot() {
+
+        return $this->docRoot;
+    }
+
+    public function getH5aiRoot() {
+
+        return $this->h5aiRoot;
+    }
+
+    public function getHrefRoot() {
+
+        return $this->hrefRoot;
+    }
+
+    public function getH5aiAbsHref() {
+
+        return $this->h5aiAbsHref;
+    }
+
+    public function getDomain() {
+
+        return $this->domain;
+    }
+
+    public function getView() {
+
+        return $this->view;
+    }
+
+    public function api() {
+
+        return $this->h5aiAbsHref . "php/api.php";
+    }
+
+    public function image($id) {
+
+        return $this->h5aiAbsHref . "images/" . $id . ".png";
+    }
+
+    public function icon($id, $big = false) {
+
+        return $this->h5aiAbsHref . "icons/" . ($big ? "48x48" : "16x16") . "/" . $id . ".png";
+    }
+
+    public function getOptions() {
+
+        return $this->options;
+    }
+
+    public function getLangs() {
+
+        return $this->langs;
+    }
+
+    public function getAbsHref($absPath = null, $endWithSlash = true) {
+
+        if ($absPath === null) {
+            return $this->absHref;
+        }
+
+        //
+        $absPath=substr($absPath, strlen($this->docRoot));
+
+        $absHref = preg_replace("!^" . $this->docRoot . "!", "", $absPath);
+        $parts = explode("/", $absHref);
+        $encodedParts = array();
+        foreach ($parts as $part) {
+            $encodedParts[] = rawurlencode($part);
+        }
+        $endodedAbsHref = implode("/", $encodedParts);
+
+        //
+        $endodedAbsHref = $this->hrefRoot . $endodedAbsHref;
+
+        return $this->normalizePath($endodedAbsHref, $endWithSlash);
+    }
+
+    public function getAbsPath($absHref = null) {
+
+        if ($absHref === null) {
+            return $this->absPath;
+        }
+
+        //
+        $absHref=substr($absHref, strlen($this->hrefRoot));
+
+        return $this->normalizePath($this->docRoot . "/" . rawurldecode($absHref), false);
+    }
+
+    public function showThumbs() {
+
+        return $this->options["showThumbs"] === true;
+    }
+
+    public function getTitle() {
+
+        $title = $this->domain . rawurldecode($this->absHref);
+        $title = preg_replace("/\/$/", "", $title);
+        $title = preg_replace("/\//", " > ", $title);
+        if ($this->absHref !== "/") {
+            $title = basename($this->absPath) . " - " . $title;
+        }
+        return $title;
+    }
+
+    public function getType($absPath) {
+
+        foreach($this->types as $type => $exts) {
+            foreach($exts as $ext) {
+                if ($this->endsWith($absPath, $ext)) {
+                    return $type;
+                }
+            }
+        }
+        return "unknown";
+    }
+
+    public function ignoreThisFile($file) {
+
+        # always ignore
+        if ($file === "." || $file === ".." || $this->startsWith($file, '.ht')) {
+            return true;
+        }
+
+        if (in_array($file, $this->ignore)) {
+            return true;
+        }
+        foreach ($this->ignoreRE as $re) {
+            if (preg_match($re, $file)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public function readDir($path) {
+
+        $content = array();
+        if (is_dir($path)) {
+            if ($dir = opendir($path)) {
+                while (($file = readdir($dir)) !== false) {
+                    if (!$this->ignoreThisFile($file)) {
+                        $content[] = $file;
+                    }
+                }
+                closedir($dir);
+            }
+        }
+        return $content;
+    }
+
+    public function getLabel($absHref) {
+
+        return $absHref === "/" ? $this->domain : rawurldecode(basename($absHref));
+    }
+
+    public function normalizePath($path, $endWithSlash) {
+
+        return ($path === "/") ? "/" : (preg_replace('#/$#', '', $path) . ($endWithSlash ? "/" : ""));
+    }
+
+    public function startsWith($sequence, $start) {
+
+        return strcasecmp(substr($sequence, 0, strlen($start)), $start) === 0;
+    }
+
+    public function endsWith($sequence, $end) {
+
+        return strcasecmp(substr($sequence, -strlen($end)), $end) === 0;
+    }
+
+    public function getHttpCode($absHref) {
+
+        return $this->cachedHttpCode($absHref);
+        #return $this->fetchHttpCode($absHref);
+        #return $this->guessHttpCode($absHref);
+    }
+
+    public function cachedHttpCode($absHref) {
+
+        $cached = $this->cache->get($absHref);
+        if ($cached === false) {
+            $folderStatus = $this->options["folderStatus"];
+            if (array_key_exists($absHref, $folderStatus)) {
+                $code = $folderStatus[$absHref];
+            } else {
+                $code = $this->fetchHttpCode($absHref);
+            }
+            $cached = array("href" => $absHref, "code" => $code);
+            $this->cache->set($absHref, $cached);
+        }
+        return $cached["code"];
+    }
+
+    public function fetchHttpCode($absHref) {
+
+        $contentType = "Content-Type:";
+        $h5aiContentType = "Content-Type: text/html;h5ai=";
+        $host = getenv("HTTP_HOST");
+        $port = getenv("SERVER_PORT");
+        $msg = "HEAD $absHref HTTP/1.1\r\nHost: $host\r\nConnection: Close\r\n";
+        if (isset($_SERVER['PHP_AUTH_USER'])) {
+            $msg .= "Authorization: Basic " . base64_encode($_SERVER['PHP_AUTH_USER'] . ":" . $_SERVER['PHP_AUTH_PW']) . "\r\n";
+        }
+        $msg .= "\r\n";
+
+        $errno = "";
+        $errstr = "";
+        $socket = fsockopen($host, $port, $errno, $errstr, 30);
+        if($socket === 0) {
+            return null;
+        }
+
+        fwrite($socket, $msg);
+        $content = fgets($socket);
+        $code = intval(trim(substr($content, 9, 4)));
+        if ($code === 200) {
+            while (! $this->startsWith($content, $contentType)) {
+                $content = fgets($socket);
+            }
+            if ($this->startsWith($content, $h5aiContentType)) {
+                $code = "h5ai";
+            }
+        }
+        fclose($socket);
+        return $code;
+    }
+
+    public function guessHttpCode($absHref) {
+
+        $indexFiles = array("index.html", "index.cgi", "index.pl", "index.php", "index.xhtml", "index.htm");
+        $absPath = $this->getAbsPath($absHref);
+        $files = $this->readDir($absPath);
+        foreach ($files as $file) {
+            if (in_array($file, $indexFiles)) {
+                return 200;
+            }
+        }
+        return "h5ai";
+    }
+}
+
+?>