PHP ewiki_db类代码示例

function ewiki_valid_pages($bool_allowimages = 0, $virtual_pages = 0)
{
    //$time=getmicrotime();
    global $ewiki_plugins;
    $result = ewiki_db::GETALL(array("flags", "refs", "meta"));
    while ($row = $result->get()) {
        if (EWIKI_PROTECTED_MODE && EWIKI_PROTECTED_MODE_HIDING && !ewiki_auth($row["id"], $str_null, "view")) {
            continue;
        }
        if (($row["flags"] & EWIKI_DB_F_TYPE) == EWIKI_DB_F_TEXT || ($bool_allowimages ? $row["meta"]["class"] == "image" : 0)) {
            $temp_refs = explode("\n", $row["refs"]);
            foreach ($temp_refs as $key => $value) {
                if (empty($value)) {
                    unset($temp_refs[$key]);
                }
            }
            if ($row["meta"]["class"] == "image") {
                $a_validpages[$row["id"]] = $temp_array = array("refs" => $temp_refs, "type" => "image", "touched" => FALSE);
            } else {
                $a_validpages[$row["id"]] = $temp_array = array("refs" => $temp_refs, "type" => "page", "touched" => FALSE);
            }
            unset($temp_refs);
        }
    }
    if ($virtual_pages) {
        #-- include virtual pages to the sitemap.
        $virtual = array_keys($ewiki_plugins["page"]);
        foreach ($virtual as $vp) {
            if (!EWIKI_PROTECTED_MODE || !EWIKI_PROTECTED_MODE_HIDING || ewiki_auth($vp, $str_null, "view")) {
                $a_validpages[$vp] = array("refs" => array(), "type" => "page", "touched" => FALSE);
            }
        }
    }
    return $a_validpages;
}

function ewiki_anacron_checktime()
{
    global $ewiki_plugins;
    if ($d = ewiki_db::GET(EWIKI_ANACRON_ID) and $d = unserialize($d["content"]) and $d["last"] >= UNIX_MILLENNIUM and time() >= $d["last"] + EWIKI_ANACRON_INTERLEAVE) {
        register_shutdown_function("ewiki_anacron_runparts");
    }
}

function ewiki_page_wordindex($id, $data, $action)
{
    global $ewiki_plugins;
    $o = ewiki_make_title($id, $id, 2);
    $src = "";
    $result = ewiki_db::GETALL(array("flags"));
    while ($row = $result->get()) {
        if (EWIKI_PROTECTED_MODE && EWIKI_PROTECTED_MODE_HIDING && !ewiki_auth($row["id"], $uu, "view")) {
            continue;
        }
        if (($row["flags"] & EWIKI_DB_F_TYPE) == EWIKI_DB_F_TEXT) {
            $src .= " " . $row["id"];
        }
    }
    $src = ewiki_split_title($src, "SPLIT", 0);
    $chars = strtr(EWIKI_CHARS_U . EWIKI_CHARS_L, "_", " ");
    $src = preg_replace("/[^{$chars}]/", " ", $src);
    $src = explode(" ", $src);
    $src = array_unique($src);
    //@ADD: word counting
    unset($src[""]);
    natcasesort($src);
    $sorted = array();
    foreach ($src as $i => $word) {
        if (strlen($word) >= 2) {
            $sorted[] = array(EWIKI_PAGE_POWERSEARCH, array("where" => "id", "q" => $word), $word, "");
        }
    }
    unset($src);
    $pf_list_pages = $ewiki_plugins["list_dict"][0];
    $o .= ewiki_list_pages($sorted, $limit = 0, $vat = 1, $pf_list_pages);
    return $o;
}

function ewiki_powersearch($q, $where = 'content')
{
    $q = ewiki_lowercase(preg_replace('/\\s*[\\000-\\040]+\\s*/', ' ', $q));
    $found = array();
    $scored = array();
    #-- initial scan
    foreach (explode(" ", $q) as $search) {
        if (empty($search)) {
            continue;
        }
        $result = ewiki_db::SEARCH($where, $search);
        while ($row = $result->get()) {
            if (($row["flags"] & EWIKI_DB_F_TYPE) == EWIKI_DB_F_TEXT) {
                $id = $row["id"];
                $content = strtolower($row[$where]);
                unset($row);
                #-- have a closer look
                $len1 = strlen($content) + 1;
                if (!isset($scored[$id])) {
                    $scored[$id] = 1;
                }
                $scored[$id] += 800 * (strlen($search) / $len1);
                $scored[$id] += 65 * (count(explode($search, $content)) - 2);
                $p = -1;
                while (($p = strpos($content, $search, $p + 1)) !== false) {
                    $scored[$id] += 80 * (1 - $p / $len1);
                }
            }
            #if-TXT
        }
    }
    #-- output results
    arsort($scored);
    $o = "<ol>\n";
    $n = 0;
    foreach ($scored as $id => $score) {
        #-- refetch page for top 10 entries (still cached by OS or DB)
        $row = $n < 10 ? ewiki_db::GET($id) : NULL;
        #-- check access rights in protected mode
        if (EWIKI_PROTECTED_MODE && !ewiki_auth($id, $row, "view", $ring = false, $force = 0)) {
            if (EWIKI_PROTECTED_MODE_HIDING) {
                continue;
            } else {
                $row["content"] = ewiki_t("FORBIDDEN");
            }
        }
        $o .= "<li>\n";
        $o .= '<div class="search-result ' . ($oe ^= 1 ? "odd" : "even") . '">' . '<a href="' . ewiki_script("", $id) . '">' . $id . "</a> " . "\n";
        #-- top 10 results are printed more verbosely
        if ($n++ < 10) {
            preg_match_all('/([_-\\w]+)/', $row["content"], $uu);
            $text = htmlentities(substr(implode(" ", $uu[1]), 0, 200));
            $o .= "<br />\n<small>{$text}\n" . "<br />" . strftime(ewiki_t("LASTCHANGED"), $row["lastmodified"]) . "<br /><br /></small>\n";
        }
        $o .= "</div>\n";
        $o .= "</li>\n";
    }
    $o .= "</ol>\n";
    return $o;
}

function ewiki_banned_link($href)
{
    global $ewiki_config;
    #-- buffer list of banned urls
    if (!isset($ewiki_config["banned"])) {
        $data = ewiki_db::GET(EWIKI_PAGE_BANNED);
        $ewiki_config["banned"] = trim(strtolower($data["refs"]));
    }
    #-- check for entry
    if ($b =& $ewiki_config["banned"]) {
        $href = strtolower(urldecode($href));
        if (strpos($b, $href) !== false) {
            return true;
        }
        foreach (explode("\n", $b) as $bad) {
            if (strpos($href, $bad) !== false) {
                return true;
            }
        }
    }
    #-- advanced
    if ($pf_a = $ewiki_plugins["ban_lookup"]) {
        foreach ($pf_a as $pf) {
            if ($pf($href)) {
                return true;
            }
        }
    }
    return false;
}

function ewiki_action_rss($id, &$data, $action)
{
    $list = array();
    #-- recentchanges as rss
    if (strtoupper($id) == "RSS") {
        $res = ewiki_db::GETALL(array("id", "flags", "version", "lastmodified"));
        $sort = array();
        while ($data = $res->get(0, 0x137, EWIKI_DB_F_TEXT)) {
            $sort[$data["id"]] = $data["lastmodified"];
        }
        arsort($sort);
        $limit = 100;
        foreach ($sort as $id => $uu) {
            $list[] = ewiki_db::GET($id);
            if ($limit-- < 0) {
                break;
            }
        }
    } else {
        $list[] = $data;
        for ($v = $data["version"] - 1; $v >= 1; $v--) {
            $d = ewiki_db::GET($id, $v);
            $list[] = $d;
        }
    }
    ewiki_feed($list);
}

function ewiki_page_since_updates($id = 0, $data = 0)
{
    $orderby = "lastmodified";
    $asc = -1;
    $print = "%02dT %02dH %02dM %02dS";
    $title = "Aktualisierung seit";
    $sorted = array();
    $result = ewiki_db::GETALL(array($orderby, "flags", "version"));
    while ($row = $result->get()) {
        if (EWIKI_DB_F_TEXT == ($row["flags"] & EWIKI_DB_F_TYPE)) {
            $sorted[$row["id"]] = $row[$orderby];
        }
    }
    if ($asc != 0) {
        arsort($sorted);
    } else {
        asort($sorted);
    }
    foreach ($sorted as $name => $value) {
        $x = time() - $value;
        $dy = (int) ($x / 86400);
        $hr = (int) ($x % 86400 / 3600);
        $mn = (int) ($x % 86400 % 3600 / 60);
        $se = $x % 86400 % 3600 % 60;
        $sorted[$name] = sprintf($print, $dy, $hr, $mn, $se);
    }
    $o .= ewiki_list_pages($sorted);
    return $o;
}

function ewiki_edit_form_append_pageimgcntrl($id, $data, $action)
{
    global $ewiki_config;
    #-- fetch and asort images
    $sorted = array();
    $result = ewiki_db::GETALL(array("flags", "created", "meta"));
    while ($row = $result->get()) {
        if (($row["flags"] & EWIKI_DB_F_TYPE) == EWIKI_DB_F_BINARY && strpos($row['meta']['Content-Type'], 'image/') === 0) {
            if (isset($ewiki_config['image-galleries'][EWIKI_PAGE_LOGOCNTRL_GALLERY])) {
                foreach ($ewiki_config['image-galleries'][EWIKI_PAGE_LOGOCNTRL_GALLERY] as $field => $value) {
                    if ($row['meta'][$field] != $value) {
                        continue 2;
                    }
                }
            }
            if (!EWIKI_PROTECTED_MODE || EWIKI_PROTECTED_MODE_HIDING <= 0.5 || ewiki_auth($row["id"], $uu, "binary-get")) {
                $sorted[$row["id"]] = substr($row['meta']["Content-Location"] . ' (' . $row["id"] . ')', 0, 70);
                //echo("adding ".$row["id"].", ".$sorted[$row["id"]]."<br />");
            }
        }
    }
    arsort($sorted);
    #-- start selector
    $o = '
        <br /><label for="pageimagecntrl">Choose Page Image (<A href="' . ewiki_script(EWIKI_PAGE_LOGOCNTRL_GALLERY) . '">view thumbnails</A>):</label>
        <select id="pageimagecntrl" name="pageimagecntrl">' . '<option value="-1" ' . (!isset($data['meta']['pageimage']) || $data['meta']['pageimage'] == '' ? ' selected="selected"' : '') . '>None</option>';
    foreach ($sorted as $image => $name) {
        $o .= '<option value="' . htmlentities($image) . '"' . (isset($data['meta']['pageimage']) && $image == $data['meta']['pageimage'] ? ' selected="selected"' : '') . '>' . htmlentities($name) . '</option>';
    }
    $o .= "</select>\n";
    return $o;
}

function ewiki_page_wiki_mini_tarball_dump($id, $data, $action)
{
    global $ewiki_config, $ewiki_plugins;
    #-- get all pages / binary files
    $result = ewiki_db::GETALL(array("id", "version", "flags"));
    if ($result) {
        #-- HTTP headers
        header("Content-Type: application/x-tar");
        header("Content-Disposition: attachment; filename=\"InitPages.tar.gz\"");
        #-- start tar file
        $tarball = new ewiki_virtual_tarball();
        $tarball->open(0);
        #-- convert all pages
        while ($row = $result->get(0, 0x1037)) {
            $id = $row["id"];
            $row = ewiki_db::GET($id);
            $content =& $row["content"];
            $fn = $id;
            if (!$row || !$row["id"] || !$row["content"]) {
                continue;
            }
            #-- for tarball
            $perms = array("mtime" => $row["lastmodified"], "uname" => "ewiki", "mode" => 0664 | ($row["flags"] & EWIKI_DB_F_WRITEABLE ? 02 : 00));
            #-- add file
            $tarball->add($fn, $content, $perms);
        }
        #-- end output
        $tarball->close();
    }
    #-- fin
    die;
}

function ewiki_blocked_link($href, $LinkPage = EWIKI_PAGE_BLOCKED)
{
    global $ewiki_config, $ewiki_plugins;
    if (!($href = trim(strtolower(urldecode($href))))) {
        return;
    }
    #-- buffer list of banned urls
    if (!isset($ewiki_config[$LinkPage])) {
        $data = ewiki_db::GET($LinkPage);
        $ewiki_config[$LinkPage] = trim(strtolower($data["refs"]));
    }
    #-- check for entry
    if ($b =& $ewiki_config[$LinkPage]) {
        if (strpos($b, $href) !== false) {
            // quick string check
            return true;
        }
        foreach (explode("\n", $b) as $bad) {
            // use as patterns
            if (strlen($bad) && strpos($href, $bad) !== false) {
                return true;
            }
        }
    }
    #-- advanced
    if ($pf_a = $ewiki_plugins["ban_lookup"]) {
        foreach ($pf_a as $pf) {
            if ($pf($href)) {
                return true;
            }
        }
    }
    return false;
}

function ewiki_addpage($id, &$data, $version)
{
    $o = ewiki_make_title($id, $id, 2);
    #-- output page creation dialog
    if (empty($_REQUEST["new_id"])) {
        $o .= ewiki_t('<form action="' . ewiki_script("", $id) . '" method="POST" enctype="multipart/formdata"> ' . '_{name of the new page} <input type="text" name="new_id" size="26" value="">' . '<br />' . '<input type="submit" value="_{create}">' . '<br /><br />' . '<input type="checkbox" name="add_link_from" value="1" checked="checked">' . ' _{link it from} ' . '<input type="text" name="link_from" size="20" value="_{AddedPages}">' . '</form>');
    } else {
        $new_id = trim($_REQUEST["new_id"]);
        #-- add a link to new page
        if ($_REQUEST["add_link_from"] && ($from = $_REQUEST["link_from"])) {
            $row = ewiki_db::GET($from);
            if ($row && $row["version"]) {
                if (($row["flags"] & EWIKI_DB_F_TYPE) == EWIKI_DB_F_TEXT) {
                    $row["version"]++;
                    $row["content"] .= "\n* [{$new_id}]";
                    ewiki_scan_wikiwords($row["content"], $row["refs"], "_STRIP_EMAIL=1");
                    $row["refs"] = "\n\n" . implode("\n", array_keys($row["refs"])) . "\n\n";
                } else {
                    $row = false;
                }
            } else {
                $row = array("id" => $from, "version" => 1, "flags" => EWIKI_DB_F_TEXT, "created" => time(), "lastmodified" => time(), "hits" => 0, "meta" => "", "content" => "\n* [{$new_id}]", "refs" => "\n\n{$new_id}\n\n");
            }
            if ($row) {
                ewiki_db::WRITE($row);
            }
        }
        #-- call edit <form>
        $o = ewiki_page($new_id);
    }
    return $o;
}

function ewiki_announcements($id, $data, $action)
{
    global $ewiki_plugins, $ewiki_config;
    if (!isset($GLOBALS['ewiki_auth_user'])) {
        return;
    }
    $notifyDates = ewiki_get_uservar("NotifyDates", FALSE);
    if (!$notifyDates) {
        $notifyDates = $ewiki_config["DefaultNotify"];
    } else {
        $notifyDates = unserialize($notifyDates);
    }
    foreach ($notifyDates as $pageName => $date) {
        $data = ewiki_db::GET($pageName);
        if (EWIKI_PROTECTED_MODE && EWIKI_PROTECTED_MODE_HIDING && !ewiki_auth($pageName, $data, "view")) {
            continue;
        }
        if ($data['lastmodified'] > $date) {
            $dispDate = $data['lastmodified'];
            $dispPage = $pageName;
            break;
        }
    }
    if (!isset($dispPage)) {
        return;
    }
    $notifyDates[$dispPage] = $dispDate;
    ewiki_set_uservar("NotifyDates", serialize($notifyDates));
    $o = ewiki_page('view/' . $dispPage);
    //page_final plugins have been run, unset them
    unset($ewiki_plugins["page_final"]);
    return $o;
}

function ewiki_page_wantedpages($id, $data, $action)
{
    #-- collect referenced pages
    $result = ewiki_db::GETALL(array("refs"));
    while ($row = $result->get()) {
        if (EWIKI_PROTECTED_MODE && EWIKI_PROTECTED_MODE_HIDING && !ewiki_auth($row["id"], $uu, "view")) {
            continue;
        }
        $refs .= $row["refs"];
    }
    #-- build array
    $refs = array_unique(explode("\n", $refs));
    #-- strip existing pages from array
    $refs = ewiki_db::FIND($refs);
    foreach ($refs as $id => $exists) {
        if (EWIKI_PROTECTED_MODE && EWIKI_PROTECTED_MODE_HIDING && !ewiki_auth($row["id"], $uu, "view")) {
            continue;
        }
        if (!$exists && !strstr($id, "://") && strlen(trim($id))) {
            $wanted[] = $id;
        }
    }
    #-- print out
    $o .= "<ul>\n";
    foreach ($wanted as $page) {
        $o .= "  <li>" . ewiki_link($page) . "</li>\n";
    }
    $o .= "<ul>\n";
    return $o;
}

function ewiki_edit_load_template($id, &$data, $action)
{
    if ($id = $_REQUEST["load_template"]) {
        $d2 = ewiki_db::GET($id);
        $data["content"] = $d2["content"];
    }
}

function ewiki_view_append_linktree($id, $data, $action)
{
    global $ewiki_config;
    $refs = ewiki_db::GETALL(array("refs"));
    $refs = ewiki_f_parent_refs($refs);
    #-- $dest
    if (empty($ewiki_config["root_page"])) {
        if (defined("EWIKI_LINKTREE_DEST")) {
            $ewiki_config["root_page"] = EWIKI_LINKTREE_DEST;
        } else {
            $ewiki_config["root_page"] = EWIKI_PAGE_INDEX;
        }
    }
    $dest =& $ewiki_config["root_page"];
    $depth = 0;
    $paths = array($id => $id);
    $current = $id;
    /*
     *   $paths["Current"] = "Current";
     *   $paths["WorldWideWeb\nWikiWikiWeb\nErfurtWiki"] = "ErfurtWiki";
     */
    #-- retry until at least one $path is found
    while (!in_array($dest, $paths) && $depth <= 15 && count($paths) <= 100000) {
        $depth++;
        #-- expand every last path entry
        foreach ($paths as $pathkey => $uu) {
            #-- mk subkey from pathkey
            if ($p = strrpos($pathkey, "\n")) {
                $lkey = substr($pathkey, $p + 1);
            } else {
                $lkey = $pathkey;
            }
            #-- append tree leafs
            if ($walk = $refs[$lkey]) {
                foreach ($walk as $add => $uu) {
                    $paths[$pathkey . "\n" . $add] = $add;
                }
                unset($refs[$lkey]);
            }
        }
    }
    #-- print results
    foreach ($paths as $key => $name) {
        $tree = array_reverse(explode("\n", $key));
        $GLOBALS["ewiki_page_sections"] = array();
        if ($name == $dest && count($tree) >= 2) {
            $GLOBALS["ewiki_page_sections"][] = $tree[1];
            if (EWIKI_LINKTREE_UL) {
                $o .= ewiki_f_tree($tree, 0);
            } else {
                $o .= ewiki_f_tree2($tree, 0);
            }
        }
    }
    $o && ($o = "<div class=\"link-tree\">{$o}</div>\n");
    return $o;
}