PHP Photo::getType方法代码示例

function fix_private_photos($s, $uid, $item = null, $cid = 0)
{
    if (get_config('system', 'disable_embedded')) {
        return $s;
    }
    $a = get_app();
    logger('fix_private_photos: check for photos', LOGGER_DEBUG);
    $site = substr($a->get_baseurl(), strpos($a->get_baseurl(), '://'));
    $orig_body = $s;
    $new_body = '';
    $img_start = strpos($orig_body, '[img');
    $img_st_close = $img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false;
    $img_len = $img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false;
    while ($img_st_close !== false && $img_len !== false) {
        $img_st_close++;
        // make it point to AFTER the closing bracket
        $image = substr($orig_body, $img_start + $img_st_close, $img_len);
        logger('fix_private_photos: found photo ' . $image, LOGGER_DEBUG);
        if (stristr($image, $site . '/photo/')) {
            // Only embed locally hosted photos
            $replace = false;
            $i = basename($image);
            $i = str_replace(array('.jpg', '.png', '.gif'), array('', '', ''), $i);
            $x = strpos($i, '-');
            if ($x) {
                $res = substr($i, $x + 1);
                $i = substr($i, 0, $x);
                $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d AND `uid` = %d", dbesc($i), intval($res), intval($uid));
                if ($r) {
                    // Check to see if we should replace this photo link with an embedded image
                    // 1. No need to do so if the photo is public
                    // 2. If there's a contact-id provided, see if they're in the access list
                    //    for the photo. If so, embed it.
                    // 3. Otherwise, if we have an item, see if the item permissions match the photo
                    //    permissions, regardless of order but first check to see if they're an exact
                    //    match to save some processing overhead.
                    if (has_permissions($r[0])) {
                        if ($cid) {
                            $recips = enumerate_permissions($r[0]);
                            if (in_array($cid, $recips)) {
                                $replace = true;
                            }
                        } elseif ($item) {
                            if (compare_permissions($item, $r[0])) {
                                $replace = true;
                            }
                        }
                    }
                    if ($replace) {
                        $data = $r[0]['data'];
                        $type = $r[0]['type'];
                        // If a custom width and height were specified, apply before embedding
                        if (preg_match("/\\[img\\=([0-9]*)x([0-9]*)\\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
                            logger('fix_private_photos: scaling photo', LOGGER_DEBUG);
                            $width = intval($match[1]);
                            $height = intval($match[2]);
                            $ph = new Photo($data, $type);
                            if ($ph->is_valid()) {
                                $ph->scaleImage(max($width, $height));
                                $data = $ph->imageString();
                                $type = $ph->getType();
                            }
                        }
                        logger('fix_private_photos: replacing photo', LOGGER_DEBUG);
                        $image = 'data:' . $type . ';base64,' . base64_encode($data);
                        logger('fix_private_photos: replaced: ' . $image, LOGGER_DATA);
                    }
                }
            }
        }
        $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
        $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
        if ($orig_body === false) {
            $orig_body = '';
        }
        $img_start = strpos($orig_body, '[img');
        $img_st_close = $img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false;
        $img_len = $img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false;
    }
    $new_body = $new_body . $orig_body;
    return $new_body;
}

//.........这里部分代码省略.........
        }
    } else {
        /**
         * Other photos
         */
        $resolution = 0;
        foreach (Photo::supportedTypes() as $m => $e) {
            $photo = str_replace(".{$e}", '', $photo);
        }
        if (substr($photo, -2, 1) == '-') {
            $resolution = intval(substr($photo, -1, 1));
            $photo = substr($photo, 0, -2);
        }
        // check if the photo exists and get the owner of the photo
        $r = q("SELECT `uid` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1", dbesc($photo), intval($resolution));
        if (count($r)) {
            $sql_extra = permissions_sql($r[0]['uid']);
            // Now we'll see if we can access the photo
            $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` <= %d {$sql_extra} ORDER BY scale DESC LIMIT 1", dbesc($photo), intval($resolution));
            $public = $r[0]['allow_cid'] == '' and $r[0]['allow_gid'] == '' and $r[0]['deny_cid'] == '' and $r[0]['deny_gid'] == '';
            if (count($r)) {
                $resolution = $r[0]['scale'];
                $data = $r[0]['data'];
                $mimetype = $r[0]['type'];
            } else {
                // The picure exists. We already checked with the first query.
                // obviously, this is not an authorized viev!
                $data = file_get_contents('images/nosign.jpg');
                $mimetype = 'image/jpeg';
                $prvcachecontrol = true;
                $public = false;
            }
        }
    }
    if (!isset($data)) {
        if (isset($resolution)) {
            switch ($resolution) {
                case 4:
                    $data = file_get_contents('images/person-175.jpg');
                    $mimetype = 'image/jpeg';
                    break;
                case 5:
                    $data = file_get_contents('images/person-80.jpg');
                    $mimetype = 'image/jpeg';
                    break;
                case 6:
                    $data = file_get_contents('images/person-48.jpg');
                    $mimetype = 'image/jpeg';
                    break;
                default:
                    killme();
                    // NOTREACHED
                    break;
            }
        }
    }
    // Resize only if its not a GIF
    if ($mime != "image/gif") {
        $ph = new Photo($data, $mimetype);
        if ($ph->is_valid()) {
            if (isset($customres) && $customres > 0 && $customres < 500) {
                $ph->scaleImageSquare($customres);
            }
            $data = $ph->imageString();
            $mimetype = $ph->getType();
        }
    }
    if (function_exists('header_remove')) {
        header_remove('Pragma');
        header_remove('pragma');
    }
    header("Content-type: " . $mimetype);
    if ($prvcachecontrol) {
        // it is a private photo that they have no permission to view.
        // tell the browser not to cache it, in case they authenticate
        // and subsequently have permission to see it
        header("Cache-Control: no-store, no-cache, must-revalidate");
    } else {
        header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
        header('Etag: "' . md5($data) . '"');
        header("Expires: " . gmdate("D, d M Y H:i:s", time() + 31536000) . " GMT");
        header("Cache-Control: max-age=31536000");
    }
    echo $data;
    // If the photo is public and there is an existing photo directory store the photo there
    if ($public and $file != "") {
        // If the photo path isn't there, try to create it
        $basepath = $a->get_basepath();
        if (!is_dir($basepath . "/photo")) {
            if (is_writable($basepath)) {
                mkdir($basepath . "/photo");
            }
        }
        if (is_dir($basepath . "/photo")) {
            file_put_contents($basepath . "/photo/" . $file, $data);
        }
    }
    killme();
    // NOTREACHED
}

//.........这里部分代码省略.........
            $data = file_get_contents($default);
            $mimetype = 'image/jpeg';
        }
    } else {
        /**
         * Other photos
         */
        $resolution = 0;
        foreach (Photo::supportedTypes() as $m => $e) {
            $photo = str_replace(".{$e}", '', $photo);
        }
        if (substr($photo, -2, 1) == '-') {
            $resolution = intval(substr($photo, -1, 1));
            $photo = substr($photo, 0, -2);
        }
        $r = q("SELECT `uid` FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d LIMIT 1", dbesc($photo), intval($resolution));
        if (count($r)) {
            $sql_extra = permissions_sql($r[0]['uid']);
            // Now we'll see if we can access the photo
            $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d {$sql_extra} LIMIT 1", dbesc($photo), intval($resolution));
            $public = $r[0]['allow_cid'] == '' and $r[0]['allow_gid'] == '' and $r[0]['deny_cid'] == '' and $r[0]['deny_gid'] == '';
            if (count($r)) {
                $data = $r[0]['data'];
                $mimetype = $r[0]['type'];
            } else {
                // Does the picture exist? It may be a remote person with no credentials,
                // but who should otherwise be able to view it. Show a default image to let
                // them know permissions was denied. It may be possible to view the image
                // through an authenticated profile visit.
                // There won't be many completely unauthorised people seeing this because
                // they won't have the photo link, so there's a reasonable chance that the person
                // might be able to obtain permission to view it.
                $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d LIMIT 1", dbesc($photo), intval($resolution));
                if (count($r)) {
                    $data = file_get_contents('images/nosign.jpg');
                    $mimetype = 'image/jpeg';
                    $prvcachecontrol = true;
                }
            }
        }
    }
    if (!isset($data)) {
        if (isset($resolution)) {
            switch ($resolution) {
                case 4:
                    $data = file_get_contents('images/person-175.jpg');
                    $mimetype = 'image/jpeg';
                    break;
                case 5:
                    $data = file_get_contents('images/person-80.jpg');
                    $mimetype = 'image/jpeg';
                    break;
                case 6:
                    $data = file_get_contents('images/person-48.jpg');
                    $mimetype = 'image/jpeg';
                    break;
                default:
                    killme();
                    // NOTREACHED
                    break;
            }
        }
    }
    // Resize only if its not a GIF
    if ($mime != "image/gif") {
        $ph = new Photo($data, $mimetype);
        if ($ph->is_valid()) {
            if (isset($customres) && $customres > 0 && $customres < 500) {
                $ph->scaleImageSquare($customres);
            }
            $data = $ph->imageString();
            $mimetype = $ph->getType();
        }
    }
    if (function_exists('header_remove')) {
        header_remove('Pragma');
        header_remove('pragma');
    }
    header("Content-type: " . $mimetype);
    if ($prvcachecontrol) {
        // it is a private photo that they have no permission to view.
        // tell the browser not to cache it, in case they authenticate
        // and subsequently have permission to see it
        header("Cache-Control: no-store, no-cache, must-revalidate");
    } else {
        header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
        header('Etag: "' . md5($data) . '"');
        header("Expires: " . gmdate("D, d M Y H:i:s", time() + 31536000) . " GMT");
        header("Cache-Control: max-age=31536000");
    }
    echo $data;
    // If the photo is public and there is an existing photo directory store the photo there
    if ($public and $file != "") {
        if (is_dir($_SERVER["DOCUMENT_ROOT"] . "/photo")) {
            file_put_contents($_SERVER["DOCUMENT_ROOT"] . "/photo/" . $file, $data);
        }
    }
    killme();
    // NOTREACHED
}