PHP AphrontRequest::getHTTPHeader方法代码示例

 public function testGetHTTPHeader()
 {
     $server_data = array('HTTP_ACCEPT_ENCODING' => 'duck/quack', 'CONTENT_TYPE' => 'cow/moo');
     $this->assertEqual('duck/quack', AphrontRequest::getHTTPHeader('AcCePt-EncOdING', null, $server_data));
     $this->assertEqual('cow/moo', AphrontRequest::getHTTPHeader('cONTent-TyPE', null, $server_data));
     $this->assertEqual(null, AphrontRequest::getHTTPHeader('Pie-Flavor', null, $server_data));
 }

 public static function isProfilerRequested()
 {
     if (!empty($_REQUEST['__profile__'])) {
         return $_REQUEST['__profile__'];
     }
     $header = AphrontRequest::getHTTPHeader(self::getProfilerHeader());
     if ($header) {
         return $header;
     }
     return false;
 }

 public static function isQueryAnalyzerRequested()
 {
     if (!empty($_REQUEST['__analyze__'])) {
         return true;
     }
     $header = AphrontRequest::getHTTPHeader(self::getQueryAnalyzerHeader());
     if ($header) {
         return true;
     }
     return false;
 }

 protected function executeChecks()
 {
     $base_uri = PhabricatorEnv::getEnvConfig('phabricator.base-uri');
     if (strpos(AphrontRequest::getHTTPHeader('Host'), '.') === false) {
         $summary = pht('The domain does not contain a dot. This is necessary for some web ' . 'browsers to be able to set cookies.');
         $message = pht('The domain in the base URI must contain a dot ("."), e.g. ' . '"http://example.com", not just a bare name like "http://example/". ' . 'Some web browsers will not set cookies on domains with no TLD.');
         $this->newIssue('config.phabricator.domain')->setShortName(pht('Dotless Domain'))->setName(pht('No Dot Character in Domain'))->setSummary($summary)->setMessage($message)->setIsFatal(true);
     }
     if ($base_uri) {
         return;
     }
     $base_uri_guess = PhabricatorEnv::getRequestBaseURI();
     $summary = pht('The base URI for this install is not configured. Configuring it will ' . 'improve security and enable features.');
     $message = pht('The base URI for this install is not configured. Configuring it will ' . 'improve security and allow background processes (like daemons and ' . 'scripts) to generate links.' . "\n\n" . 'You should set the base URI to the URI you will use to access ' . 'Phabricator, like "http://phabricator.example.com/".' . "\n\n" . 'Include the protocol (http or https), domain name, and port number if ' . 'you are using a port other than 80 (http) or 443 (https).' . "\n\n" . 'Based on this request, it appears that the correct setting is:' . "\n\n" . '%s' . "\n\n" . 'To configure the base URI, run the command shown below.', $base_uri_guess);
     $this->newIssue('config.phabricator.base-uri')->setShortName(pht('No Base URI'))->setName(pht('Base URI Not Configured'))->setSummary($summary)->setMessage($message)->addCommand(hsprintf('<tt>phabricator/ $</tt> %s', csprintf('./bin/config set phabricator.base-uri %s', $base_uri_guess)));
 }

 public function __construct($method, array $params)
 {
     $this->method = $method;
     $this->handler = $this->buildMethodHandler($method);
     $this->servers = PhabricatorEnv::getEnvConfig('conduit.servers');
     $this->forceLocal = false;
     $invalid_params = array_diff_key($params, $this->handler->defineParamTypes());
     if ($invalid_params) {
         throw new ConduitException("Method '{$method}' doesn't define these parameters: '" . implode("', '", array_keys($invalid_params)) . "'.");
     }
     if ($this->servers) {
         $current_host = AphrontRequest::getHTTPHeader('HOST');
         foreach ($this->servers as $server) {
             if ($current_host === id(new PhutilURI($server))->getDomain()) {
                 $this->forceLocal = true;
                 break;
             }
         }
     }
     $this->request = new ConduitAPIRequest($params);
 }

 protected function executeChecks()
 {
     $base_uri = PhabricatorEnv::getEnvConfig('phabricator.base-uri');
     $host_header = AphrontRequest::getHTTPHeader('Host');
     if (strpos($host_header, '.') === false) {
         if (!strlen(trim($host_header))) {
             $name = pht('No "Host" Header');
             $summary = pht('No "Host" header present in request.');
             $message = pht('This request did not include a "Host" header. This may mean that ' . 'your webserver (like nginx or apache) is misconfigured so the ' . '"Host" header is not making it to Phabricator, or that you are ' . 'making a raw request without a "Host" header using a tool or ' . 'library.' . "\n\n" . 'If you are using a web browser, check your webserver ' . 'configuration. If you are using a tool or library, check how the ' . 'request is being constructed.' . "\n\n" . 'It is also possible (but very unlikely) that some other network ' . 'device (like a load balancer) is stripping the header.' . "\n\n" . 'Requests must include a valid "Host" header.');
         } else {
             $name = pht('Bad "Host" Header');
             $summary = pht('Request has bad "Host" header.');
             $message = pht('This request included an invalid "Host" header, with value "%s". ' . 'Host headers must contain a dot ("."), like "example.com". This ' . 'is required for some browsers to be able to set cookies.' . "\n\n" . 'This may mean the base URI is configured incorrectly. You must ' . 'serve Phabricator from a base URI with a dot (like ' . '"https://phabricator.mycompany.com"), not a bare domain ' . '(like "https://phabricator/"). If you are trying to use a bare ' . 'domain, change your configuration to use a full domain with a dot ' . 'in it instead.' . "\n\n" . 'This might also mean that your webserver (or some other network ' . 'device, like a load balancer) is mangling the "Host" header, or ' . 'you are using a tool or library to issue a request manually and ' . 'setting the wrong "Host" header.' . "\n\n" . 'Requests must include a valid "Host" header.', $host_header);
         }
         $this->newIssue('request.host')->setName($name)->setSummary($summary)->setMessage($message)->setIsFatal(true);
     }
     if ($base_uri) {
         return;
     }
     $base_uri_guess = PhabricatorEnv::getRequestBaseURI();
     $summary = pht('The base URI for this install is not configured. Many major features ' . 'will not work properly until you configure it.');
     $message = pht('The base URI for this install is not configured, and major features ' . 'will not work properly until you configure it.' . "\n\n" . 'You should set the base URI to the URI you will use to access ' . 'Phabricator, like "http://phabricator.example.com/".' . "\n\n" . 'Include the protocol (http or https), domain name, and port number if ' . 'you are using a port other than 80 (http) or 443 (https).' . "\n\n" . 'Based on this request, it appears that the correct setting is:' . "\n\n" . '%s' . "\n\n" . 'To configure the base URI, run the command shown below.', $base_uri_guess);
     $this->newIssue('config.phabricator.base-uri')->setShortName(pht('No Base URI'))->setName(pht('Base URI Not Configured'))->setSummary($summary)->setMessage($message)->addCommand(hsprintf('<tt>phabricator/ $</tt> %s', csprintf('./bin/config set phabricator.base-uri %s', $base_uri_guess)));
 }

 protected function serveResource(array $spec)
 {
     $path = $spec['path'];
     $hash = idx($spec, 'hash');
     // Sanity checking to keep this from exposing anything sensitive, since it
     // ultimately boils down to disk reads.
     if (preg_match('@(//|\\.\\.)@', $path)) {
         return new Aphront400Response();
     }
     $type = CelerityResourceTransformer::getResourceType($path);
     $type_map = self::getSupportedResourceTypes();
     if (empty($type_map[$type])) {
         throw new Exception(pht('Only static resources may be served.'));
     }
     $dev_mode = PhabricatorEnv::getEnvConfig('phabricator.developer-mode');
     $map = $this->getCelerityResourceMap();
     $expect_hash = $map->getHashForName($path);
     // Test if the URI hash is correct for our current resource map. If it
     // is not, refuse to cache this resource. This avoids poisoning caches
     // and CDNs if we're getting a request for a new resource to an old node
     // shortly after a push.
     $is_cacheable = $hash === $expect_hash;
     $is_locally_cacheable = $this->isLocallyCacheableResourceType($type);
     if (AphrontRequest::getHTTPHeader('If-Modified-Since') && $is_cacheable) {
         // Return a "304 Not Modified". We don't care about the value of this
         // field since we never change what resource is served by a given URI.
         return $this->makeResponseCacheable(new Aphront304Response());
     }
     $cache = null;
     $data = null;
     if ($is_cacheable && $is_locally_cacheable && !$dev_mode) {
         $cache = PhabricatorCaches::getImmutableCache();
         $request_path = $this->getRequest()->getPath();
         $cache_key = $this->getCacheKey($request_path);
         $data = $cache->getKey($cache_key);
     }
     if ($data === null) {
         if ($map->isPackageResource($path)) {
             $resource_names = $map->getResourceNamesForPackageName($path);
             if (!$resource_names) {
                 return new Aphront404Response();
             }
             try {
                 $data = array();
                 foreach ($resource_names as $resource_name) {
                     $data[] = $map->getResourceDataForName($resource_name);
                 }
                 $data = implode("\n\n", $data);
             } catch (Exception $ex) {
                 return new Aphront404Response();
             }
         } else {
             try {
                 $data = $map->getResourceDataForName($path);
             } catch (Exception $ex) {
                 return new Aphront404Response();
             }
         }
         $xformer = $this->buildResourceTransformer();
         if ($xformer) {
             $data = $xformer->transformResource($path, $data);
         }
         if ($cache) {
             $cache->setKey($cache_key, $data);
         }
     }
     $response = new AphrontFileResponse();
     $response->setContent($data);
     $response->setMimeType($type_map[$type]);
     // NOTE: This is a piece of magic required to make WOFF fonts work in
     // Firefox and IE. Possibly we should generalize this more.
     $cross_origin_types = array('woff' => true, 'woff2' => true, 'eot' => true);
     if (isset($cross_origin_types[$type])) {
         // We could be more tailored here, but it's not currently trivial to
         // generate a comprehensive list of valid origins (an install may have
         // arbitrarily many Phame blogs, for example), and we lose nothing by
         // allowing access from anywhere.
         $response->addAllowOrigin('*');
     }
     if ($is_cacheable) {
         $response = $this->makeResponseCacheable($response);
     }
     return $response;
 }

 protected function getBodyClasses()
 {
     $classes = array();
     if (!$this->getShowChrome()) {
         $classes[] = 'phabricator-chromeless-page';
     }
     $agent = AphrontRequest::getHTTPHeader('User-Agent');
     // Try to guess the device resolution based on UA strings to avoid a flash
     // of incorrectly-styled content.
     $device_guess = 'device-desktop';
     if (preg_match('@iPhone|iPod|(Android.*Chrome/[.0-9]* Mobile)@', $agent)) {
         $device_guess = 'device-phone device';
     } else {
         if (preg_match('@iPad|(Android.*Chrome/)@', $agent)) {
             $device_guess = 'device-tablet device';
         }
     }
     $classes[] = $device_guess;
     if (preg_match('@Windows@', $agent)) {
         $classes[] = 'platform-windows';
     } else {
         if (preg_match('@Macintosh@', $agent)) {
             $classes[] = 'platform-mac';
         } else {
             if (preg_match('@X11@', $agent)) {
                 $classes[] = 'platform-linux';
             }
         }
     }
     if ($this->getRequest()->getStr('__print__')) {
         $classes[] = 'printable';
     }
     if ($this->getRequest()->getStr('__aural__')) {
         $classes[] = 'audible';
     }
     $classes[] = 'phui-theme-' . PhabricatorEnv::getEnvConfig('ui.header-color');
     foreach ($this->classes as $class) {
         $classes[] = $class;
     }
     return implode(' ', $classes);
 }

 /**
  * @phutil-external-symbol class PhabricatorStartup
  */
 public static function runHTTPRequest(AphrontHTTPSink $sink)
 {
     $multimeter = MultimeterControl::newInstance();
     $multimeter->setEventContext('<http-init>');
     $multimeter->setEventViewer('<none>');
     // Build a no-op write guard for the setup phase. We'll replace this with a
     // real write guard later on, but we need to survive setup and build a
     // request object first.
     $write_guard = new AphrontWriteGuard('id');
     PhabricatorEnv::initializeWebEnvironment();
     $multimeter->setSampleRate(PhabricatorEnv::getEnvConfig('debug.sample-rate'));
     $debug_time_limit = PhabricatorEnv::getEnvConfig('debug.time-limit');
     if ($debug_time_limit) {
         PhabricatorStartup::setDebugTimeLimit($debug_time_limit);
     }
     // This is the earliest we can get away with this, we need env config first.
     PhabricatorAccessLog::init();
     $access_log = PhabricatorAccessLog::getLog();
     PhabricatorStartup::setAccessLog($access_log);
     $access_log->setData(array('R' => AphrontRequest::getHTTPHeader('Referer', '-'), 'r' => idx($_SERVER, 'REMOTE_ADDR', '-'), 'M' => idx($_SERVER, 'REQUEST_METHOD', '-')));
     DarkConsoleXHProfPluginAPI::hookProfiler();
     DarkConsoleErrorLogPluginAPI::registerErrorHandler();
     $response = PhabricatorSetupCheck::willProcessRequest();
     if ($response) {
         PhabricatorStartup::endOutputCapture();
         $sink->writeResponse($response);
         return;
     }
     $host = AphrontRequest::getHTTPHeader('Host');
     $path = $_REQUEST['__path__'];
     switch ($host) {
         default:
             $config_key = 'aphront.default-application-configuration-class';
             $application = PhabricatorEnv::newObjectFromConfig($config_key);
             break;
     }
     $application->setHost($host);
     $application->setPath($path);
     $application->willBuildRequest();
     $request = $application->buildRequest();
     // Now that we have a request, convert the write guard into one which
     // actually checks CSRF tokens.
     $write_guard->dispose();
     $write_guard = new AphrontWriteGuard(array($request, 'validateCSRF'));
     // Build the server URI implied by the request headers. If an administrator
     // has not configured "phabricator.base-uri" yet, we'll use this to generate
     // links.
     $request_protocol = $request->isHTTPS() ? 'https' : 'http';
     $request_base_uri = "{$request_protocol}://{$host}/";
     PhabricatorEnv::setRequestBaseURI($request_base_uri);
     $access_log->setData(array('U' => (string) $request->getRequestURI()->getPath()));
     $processing_exception = null;
     try {
         $response = $application->processRequest($request, $access_log, $sink, $multimeter);
         $response_code = $response->getHTTPResponseCode();
     } catch (Exception $ex) {
         $processing_exception = $ex;
         $response_code = 500;
     }
     $write_guard->dispose();
     $access_log->setData(array('c' => $response_code, 'T' => PhabricatorStartup::getMicrosecondsSinceStart()));
     $multimeter->newEvent(MultimeterEvent::TYPE_REQUEST_TIME, $multimeter->getEventContext(), PhabricatorStartup::getMicrosecondsSinceStart());
     $access_log->write();
     $multimeter->saveEvents();
     DarkConsoleXHProfPluginAPI::saveProfilerSample($access_log);
     // Add points to the rate limits for this request.
     if (isset($_SERVER['REMOTE_ADDR'])) {
         $user_ip = $_SERVER['REMOTE_ADDR'];
         // The base score for a request allows users to make 30 requests per
         // minute.
         $score = 1000 / 30;
         // If the user was logged in, let them make more requests.
         if ($request->getUser() && $request->getUser()->getPHID()) {
             $score = $score / 5;
         }
         PhabricatorStartup::addRateLimitScore($user_ip, $score);
     }
     if ($processing_exception) {
         throw $processing_exception;
     }
 }

 private function processAjaxRequest()
 {
     $request = $this->getRequest();
     $viewer = $request->getUser();
     // We end up here if the user clicks a workflow link that they need to
     // login to use. We give them a dialog saying "You need to login...".
     if ($request->isDialogFormPost()) {
         return id(new AphrontRedirectResponse())->setURI($request->getRequestURI());
     }
     // Often, users end up here by clicking a disabled action link in the UI
     // (for example, they might click "Edit Blocking Tasks" on a Maniphest
     // task page). After they log in we want to send them back to that main
     // object page if we can, since it's confusing to end up on a standalone
     // page with only a dialog (particularly if that dialog is another error,
     // like a policy exception).
     $via_header = AphrontRequest::getViaHeaderName();
     $via_uri = AphrontRequest::getHTTPHeader($via_header);
     if (strlen($via_uri)) {
         PhabricatorCookies::setNextURICookie($request, $via_uri, $force = true);
     }
     return $this->newDialog()->setTitle(pht('Login Required'))->appendParagraph(pht('You must login to take this action.'))->addSubmitButton(pht('Login'))->addCancelButton('/');
 }

 public function handleRequest(AphrontRequest $request)
 {
     $viewer = $request->getViewer();
     $this->phid = $request->getURIData('phid');
     $this->key = $request->getURIData('key');
     $this->token = $request->getURIData('token');
     $alt = PhabricatorEnv::getEnvConfig('security.alternate-file-domain');
     $base_uri = PhabricatorEnv::getEnvConfig('phabricator.base-uri');
     $alt_uri = new PhutilURI($alt);
     $alt_domain = $alt_uri->getDomain();
     $req_domain = $request->getHost();
     $main_domain = id(new PhutilURI($base_uri))->getDomain();
     $cache_response = true;
     if (empty($alt) || $main_domain == $alt_domain) {
         // Alternate files domain isn't configured or it's set
         // to the same as the default domain
         $response = $this->loadFile($viewer);
         if ($response) {
             return $response;
         }
         $file = $this->getFile();
         // when the file is not CDNable, don't allow cache
         $cache_response = $file->getCanCDN();
     } else {
         if ($req_domain != $alt_domain) {
             // Alternate domain is configured but this request isn't using it
             $response = $this->loadFile($viewer);
             if ($response) {
                 return $response;
             }
             $file = $this->getFile();
             // if the user can see the file, generate a token;
             // redirect to the alt domain with the token;
             $token_uri = $file->getCDNURIWithToken();
             $token_uri = new PhutilURI($token_uri);
             $token_uri = $this->addURIParameters($token_uri);
             return id(new AphrontRedirectResponse())->setIsExternal(true)->setURI($token_uri);
         } else {
             // We are using the alternate domain. We don't have authentication
             // on this domain, so we bypass policy checks when loading the file.
             $bypass_policies = PhabricatorUser::getOmnipotentUser();
             $response = $this->loadFile($bypass_policies);
             if ($response) {
                 return $response;
             }
             $file = $this->getFile();
             $acquire_token_uri = id(new PhutilURI($file->getViewURI()))->setDomain($main_domain);
             $acquire_token_uri = $this->addURIParameters($acquire_token_uri);
             if ($this->token) {
                 // validate the token, if it is valid, continue
                 $validated_token = $file->validateOneTimeToken($this->token);
                 if (!$validated_token) {
                     $dialog = $this->newDialog()->setShortTitle(pht('Expired File'))->setTitle(pht('File Link Has Expired'))->appendParagraph(pht('The link you followed to view this file is invalid or ' . 'expired.'))->appendParagraph(pht('Continue to generate a new link to the file. You may be ' . 'required to log in.'))->addCancelButton($acquire_token_uri, pht('Continue'));
                     // Build an explicit response so we can respond with HTTP/403 instead
                     // of HTTP/200.
                     $response = id(new AphrontDialogResponse())->setDialog($dialog)->setHTTPResponseCode(403);
                     return $response;
                 }
                 // return the file data without cache headers
                 $cache_response = false;
             } else {
                 if (!$file->getCanCDN()) {
                     // file cannot be served via cdn, and no token given
                     // redirect to the main domain to aquire a token
                     // This is marked as an "external" URI because it is fully qualified.
                     return id(new AphrontRedirectResponse())->setIsExternal(true)->setURI($acquire_token_uri);
                 }
             }
         }
     }
     $response = new AphrontFileResponse();
     if ($cache_response) {
         $response->setCacheDurationInSeconds(60 * 60 * 24 * 30);
     }
     $begin = null;
     $end = null;
     // NOTE: It's important to accept "Range" requests when playing audio.
     // If we don't, Safari has difficulty figuring out how long sounds are
     // and glitches when trying to loop them. In particular, Safari sends
     // an initial request for bytes 0-1 of the audio file, and things go south
     // if we can't respond with a 206 Partial Content.
     $range = $request->getHTTPHeader('range');
     if ($range) {
         $matches = null;
         if (preg_match('/^bytes=(\\d+)-(\\d+)$/', $range, $matches)) {
             // Note that the "Range" header specifies bytes differently than
             // we do internally: the range 0-1 has 2 bytes (byte 0 and byte 1).
             $begin = (int) $matches[1];
             $end = (int) $matches[2] + 1;
             $response->setHTTPResponseCode(206);
             $response->setRange($begin, $end - 1);
         }
     } else {
         if (isset($validated_token)) {
             // We set this on the response, and the response deletes it after the
             // transfer completes. This allows transfers to be resumed, in theory.
             $response->setTemporaryFileToken($validated_token);
         }
     }
     $is_viewable = $file->isViewableInBrowser();
//.........这里部分代码省略.........

 public function save()
 {
     $this->details['host'] = php_uname('n');
     $this->details['user_agent'] = AphrontRequest::getHTTPHeader('User-Agent');
     return parent::save();
 }

 $show_unexpected_traces = PhabricatorEnv::getEnvConfig('phabricator.developer-mode');
 // This is the earliest we can get away with this, we need env config first.
 PhabricatorAccessLog::init();
 $access_log = PhabricatorAccessLog::getLog();
 PhabricatorStartup::setGlobal('log.access', $access_log);
 $access_log->setData(array('R' => AphrontRequest::getHTTPHeader('Referer', '-'), 'r' => idx($_SERVER, 'REMOTE_ADDR', '-'), 'M' => idx($_SERVER, 'REQUEST_METHOD', '-')));
 DarkConsoleXHProfPluginAPI::hookProfiler();
 DarkConsoleErrorLogPluginAPI::registerErrorHandler();
 $sink = new AphrontPHPHTTPSink();
 $response = PhabricatorSetupCheck::willProcessRequest();
 if ($response) {
     PhabricatorStartup::endOutputCapture();
     $sink->writeResponse($response);
     return;
 }
 $host = AphrontRequest::getHTTPHeader('Host');
 $path = $_REQUEST['__path__'];
 switch ($host) {
     default:
         $config_key = 'aphront.default-application-configuration-class';
         $application = PhabricatorEnv::newObjectFromConfig($config_key);
         break;
 }
 $application->setHost($host);
 $application->setPath($path);
 $application->willBuildRequest();
 $request = $application->buildRequest();
 // Until an administrator sets "phabricator.base-uri", assume it is the same
 // as the request URI. This will work fine in most cases, it just breaks down
 // when daemons need to do things.
 $request_protocol = $request->isHTTPS() ? 'https' : 'http';

 public function handleRequest(AphrontRequest $request)
 {
     $viewer = $request->getViewer();
     $this->phid = $request->getURIData('phid');
     $this->key = $request->getURIData('key');
     $alt = PhabricatorEnv::getEnvConfig('security.alternate-file-domain');
     $base_uri = PhabricatorEnv::getEnvConfig('phabricator.base-uri');
     $alt_uri = new PhutilURI($alt);
     $alt_domain = $alt_uri->getDomain();
     $req_domain = $request->getHost();
     $main_domain = id(new PhutilURI($base_uri))->getDomain();
     if (!strlen($alt) || $main_domain == $alt_domain) {
         // No alternate domain.
         $should_redirect = false;
         $is_alternate_domain = false;
     } else {
         if ($req_domain != $alt_domain) {
             // Alternate domain, but this request is on the main domain.
             $should_redirect = true;
             $is_alternate_domain = false;
         } else {
             // Alternate domain, and on the alternate domain.
             $should_redirect = false;
             $is_alternate_domain = true;
         }
     }
     $response = $this->loadFile();
     if ($response) {
         return $response;
     }
     $file = $this->getFile();
     if ($should_redirect) {
         return id(new AphrontRedirectResponse())->setIsExternal(true)->setURI($file->getCDNURI());
     }
     $response = new AphrontFileResponse();
     $response->setCacheDurationInSeconds(60 * 60 * 24 * 30);
     $response->setCanCDN($file->getCanCDN());
     $begin = null;
     $end = null;
     // NOTE: It's important to accept "Range" requests when playing audio.
     // If we don't, Safari has difficulty figuring out how long sounds are
     // and glitches when trying to loop them. In particular, Safari sends
     // an initial request for bytes 0-1 of the audio file, and things go south
     // if we can't respond with a 206 Partial Content.
     $range = $request->getHTTPHeader('range');
     if ($range) {
         $matches = null;
         if (preg_match('/^bytes=(\\d+)-(\\d+)$/', $range, $matches)) {
             // Note that the "Range" header specifies bytes differently than
             // we do internally: the range 0-1 has 2 bytes (byte 0 and byte 1).
             $begin = (int) $matches[1];
             $end = (int) $matches[2] + 1;
             $response->setHTTPResponseCode(206);
             $response->setRange($begin, $end - 1);
         }
     }
     $is_viewable = $file->isViewableInBrowser();
     $force_download = $request->getExists('download');
     $request_type = $request->getHTTPHeader('X-Phabricator-Request-Type');
     $is_lfs = $request_type == 'git-lfs';
     if ($is_viewable && !$force_download) {
         $response->setMimeType($file->getViewableMimeType());
     } else {
         if (!$request->isHTTPPost() && !$is_alternate_domain && !$is_lfs) {
             // NOTE: Require POST to download files from the primary domain. We'd
             // rather go full-bore and do a real CSRF check, but can't currently
             // authenticate users on the file domain. This should blunt any
             // attacks based on iframes, script tags, applet tags, etc., at least.
             // Send the user to the "info" page if they're using some other method.
             // This is marked as "external" because it is fully qualified.
             return id(new AphrontRedirectResponse())->setIsExternal(true)->setURI(PhabricatorEnv::getProductionURI($file->getBestURI()));
         }
         $response->setMimeType($file->getMimeType());
         $response->setDownload($file->getName());
     }
     $iterator = $file->getFileDataIterator($begin, $end);
     $response->setContentLength($file->getByteSize());
     $response->setContentIterator($iterator);
     return $response;
 }