/**
* Get file content or copy action.
*
* @param string $originUrl The origin URL
* @param string $fileUrl The file URL
* @param array $additionalOptions context options
* @param string $fileName the local filename
* @param bool $progress Display the progression
*
* @throws TransportException|\Exception
* @throws TransportException When the file could not be downloaded
*
* @return bool|string
*/
protected function get($originUrl, $fileUrl, $additionalOptions = array(), $fileName = null, $progress = true)
{
if (strpos($originUrl, '.github.com') === strlen($originUrl) - 11) {
$originUrl = 'github.com';
}
$this->scheme = parse_url($fileUrl, PHP_URL_SCHEME);
$this->bytesMax = 0;
$this->originUrl = $originUrl;
$this->fileUrl = $fileUrl;
$this->fileName = $fileName;
$this->progress = $progress;
$this->lastProgress = null;
$this->retryAuthFailure = true;
$this->lastHeaders = array();
$this->redirects = 1;
// The first request counts.
// capture username/password from URL if there is one
if (preg_match('{^https?://(.+):(.+)@([^/]+)}i', $fileUrl, $match)) {
$this->io->setAuthentication($originUrl, urldecode($match[1]), urldecode($match[2]));
}
$tempAdditionalOptions = $additionalOptions;
if (isset($tempAdditionalOptions['retry-auth-failure'])) {
$this->retryAuthFailure = (bool) $tempAdditionalOptions['retry-auth-failure'];
unset($tempAdditionalOptions['retry-auth-failure']);
}
$isRedirect = false;
if (isset($tempAdditionalOptions['redirects'])) {
$this->redirects = $tempAdditionalOptions['redirects'];
$isRedirect = true;
unset($tempAdditionalOptions['redirects']);
}
$options = $this->getOptionsForUrl($originUrl, $tempAdditionalOptions);
unset($tempAdditionalOptions);
$userlandFollow = isset($options['http']['follow_location']) && !$options['http']['follow_location'];
$this->io->writeError((substr($fileUrl, 0, 4) === 'http' ? 'Downloading ' : 'Reading ') . $fileUrl, true, IOInterface::DEBUG);
if (isset($options['github-token'])) {
$fileUrl .= (false === strpos($fileUrl, '?') ? '?' : '&') . 'access_token=' . $options['github-token'];
unset($options['github-token']);
}
if (isset($options['gitlab-token'])) {
$fileUrl .= (false === strpos($fileUrl, '?') ? '?' : '&') . 'access_token=' . $options['gitlab-token'];
unset($options['gitlab-token']);
}
if (isset($options['http'])) {
$options['http']['ignore_errors'] = true;
}
if ($this->degradedMode && substr($fileUrl, 0, 21) === 'http://packagist.org/') {
// access packagist using the resolved IPv4 instead of the hostname to force IPv4 protocol
$fileUrl = 'http://' . gethostbyname('packagist.org') . substr($fileUrl, 20);
}
$ctx = StreamContextFactory::getContext($fileUrl, $options, array('notification' => array($this, 'callbackGet')));
if ($this->progress && !$isRedirect) {
$this->io->writeError(" Downloading: <comment>Connecting...</comment>", false);
}
$errorMessage = '';
$errorCode = 0;
$result = false;
set_error_handler(function ($code, $msg) use(&$errorMessage) {
if ($errorMessage) {
$errorMessage .= "\n";
}
$errorMessage .= preg_replace('{^file_get_contents\\(.*?\\): }', '', $msg);
});
try {
$result = file_get_contents($fileUrl, false, $ctx);
if (PHP_VERSION_ID < 50600 && !empty($options['ssl']['peer_fingerprint'])) {
// Emulate fingerprint validation on PHP < 5.6
$params = stream_context_get_params($ctx);
$expectedPeerFingerprint = $options['ssl']['peer_fingerprint'];
$peerFingerprint = TlsHelper::getCertificateFingerprint($params['options']['ssl']['peer_certificate']);
// Constant time compare??!
if ($expectedPeerFingerprint !== $peerFingerprint) {
throw new TransportException('Peer fingerprint did not match');
}
}
} catch (\Exception $e) {
if ($e instanceof TransportException && !empty($http_response_header[0])) {
$e->setHeaders($http_response_header);
$e->setStatusCode($this->findStatusCode($http_response_header));
}
if ($e instanceof TransportException && $result !== false) {
$e->setResponse($result);
}
$result = false;
}
if ($errorMessage && !ini_get('allow_url_fopen')) {
$errorMessage = 'allow_url_fopen must be enabled in php.ini (' . $errorMessage . ')';
}
restore_error_handler();
if (isset($e) && !$this->retry) {
if (!$this->degradedMode && false !== strpos($e->getMessage(), 'Operation timed out')) {
$this->degradedMode = true;
$this->io->writeError(array('<error>' . $e->getMessage() . '</error>', '<error>Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubleshooting.md#degraded-mode for more info</error>'));
return $this->get($this->originUrl, $this->fileUrl, $additionalOptions, $this->fileName, $this->progress);
}
throw $e;
}
$statusCode = null;
if (!empty($http_response_header[0])) {
$statusCode = $this->findStatusCode($http_response_header);
}
// handle 3xx redirects for php<5.6, 304 Not Modified is excluded
$hasFollowedRedirect = false;
if ($userlandFollow && $statusCode >= 300 && $statusCode <= 399 && $statusCode !== 304 && $this->redirects < $this->maxRedirects) {
$hasFollowedRedirect = true;
$result = $this->handleRedirect($http_response_header, $additionalOptions, $result);
}
// fail 4xx and 5xx responses and capture the response
if ($statusCode && $statusCode >= 400 && $statusCode <= 599) {
if (!$this->retry) {
$e = new TransportException('The "' . $this->fileUrl . '" file could not be downloaded (' . $http_response_header[0] . ')', $statusCode);
$e->setHeaders($http_response_header);
$e->setResponse($result);
$e->setStatusCode($statusCode);
throw $e;
}
$result = false;
}
if ($this->progress && !$this->retry && !$isRedirect) {
$this->io->overwriteError(" Downloading: <comment>100%</comment>");
}
// decode gzip
if ($result && extension_loaded('zlib') && substr($fileUrl, 0, 4) === 'http' && !$hasFollowedRedirect) {
$decode = 'gzip' === strtolower($this->findHeaderValue($http_response_header, 'content-encoding'));
if ($decode) {
try {
if (PHP_VERSION_ID >= 50400) {
$result = zlib_decode($result);
} else {
// work around issue with gzuncompress & co that do not work with all gzip checksums
$result = file_get_contents('compress.zlib://data:application/octet-stream;base64,' . base64_encode($result));
}
if (!$result) {
throw new TransportException('Failed to decode zlib stream');
}
} catch (\Exception $e) {
if ($this->degradedMode) {
throw $e;
}
$this->degradedMode = true;
$this->io->writeError(array('<error>Failed to decode response: ' . $e->getMessage() . '</error>', '<error>Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubleshooting.md#degraded-mode for more info</error>'));
return $this->get($this->originUrl, $this->fileUrl, $additionalOptions, $this->fileName, $this->progress);
}
}
}
// handle copy command if download was successful
if (false !== $result && null !== $fileName && !$isRedirect) {
if ('' === $result) {
throw new TransportException('"' . $this->fileUrl . '" appears broken, and returned an empty 200 response');
}
$errorMessage = '';
set_error_handler(function ($code, $msg) use(&$errorMessage) {
if ($errorMessage) {
$errorMessage .= "\n";
}
$errorMessage .= preg_replace('{^file_put_contents\\(.*?\\): }', '', $msg);
});
$result = (bool) file_put_contents($fileName, $result);
restore_error_handler();
if (false === $result) {
throw new TransportException('The "' . $this->fileUrl . '" file could not be written to ' . $fileName . ': ' . $errorMessage);
}
}
// Handle SSL cert match issues
if (false === $result && false !== strpos($errorMessage, 'Peer certificate') && PHP_VERSION_ID < 50600) {
// Certificate name error, PHP doesn't support subjectAltName on PHP < 5.6
// The procedure to handle sAN for older PHP's is:
//
// 1. Open socket to remote server and fetch certificate (disabling peer
// validation because PHP errors without giving up the certificate.)
//
// 2. Verifying the domain in the URL against the names in the sAN field.
// If there is a match record the authority [host/port], certificate
// common name, and certificate fingerprint.
//
// 3. Retry the original request but changing the CN_match parameter to
// the common name extracted from the certificate in step 2.
//
// 4. To prevent any attempt at being hoodwinked by switching the
// certificate between steps 2 and 3 the fingerprint of the certificate
// presented in step 3 is compared against the one recorded in step 2.
if (TlsHelper::isOpensslParseSafe()) {
$certDetails = $this->getCertificateCnAndFp($this->fileUrl, $options);
if ($certDetails) {
$this->peerCertificateMap[$this->getUrlAuthority($this->fileUrl)] = $certDetails;
$this->retry = true;
}
} else {
$this->io->writeError(sprintf('<error>Your version of PHP, %s, is affected by CVE-2013-6420 and cannot safely perform certificate validation, we strongly suggest you upgrade.</error>', PHP_VERSION));
}
}
if ($this->retry) {
$this->retry = false;
$result = $this->get($this->originUrl, $this->fileUrl, $additionalOptions, $this->fileName, $this->progress);
if ($this->storeAuth && $this->config) {
$authHelper = new AuthHelper($this->io, $this->config);
$authHelper->storeAuth($this->originUrl, $this->storeAuth);
$this->storeAuth = false;
}
return $result;
}
if (false === $result) {
$e = new TransportException('The "' . $this->fileUrl . '" file could not be downloaded: ' . $errorMessage, $errorCode);
if (!empty($http_response_header[0])) {
$e->setHeaders($http_response_header);
}
if (!$this->degradedMode && false !== strpos($e->getMessage(), 'Operation timed out')) {
$this->degradedMode = true;
$this->io->writeError(array('<error>' . $e->getMessage() . '</error>', '<error>Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubleshooting.md#degraded-mode for more info</error>'));
return $this->get($this->originUrl, $this->fileUrl, $additionalOptions, $this->fileName, $this->progress);
}
throw $e;
}
if (!empty($http_response_header[0])) {
$this->lastHeaders = $http_response_header;
}
return $result;
}
public function runCommand($commandCallable, $url, $cwd, $initialClone = false)
{
if (preg_match('{^(http|git):}i', $url) && $this->config->get('secure-http')) {
throw new TransportException("Your configuration does not allow connection to {$url}. See https://getcomposer.org/doc/06-config.md#secure-http for details.");
}
if ($initialClone) {
$origCwd = $cwd;
$cwd = null;
}
if (preg_match('{^ssh://[^@]+@[^:]+:[^0-9]+}', $url)) {
throw new \InvalidArgumentException('The source URL ' . $url . ' is invalid, ssh URLs should have a port number after ":".' . "\n" . 'Use ssh://git@example.com:22/path or just git@example.com:path if you do not want to provide a password or custom port.');
}
if (!$initialClone) {
// capture username/password from URL if there is one
$this->process->execute('git remote -v', $output, $cwd);
if (preg_match('{^(?:composer|origin)\\s+https?://(.+):(.+)@([^/]+)}im', $output, $match)) {
$this->io->setAuthentication($match[3], urldecode($match[1]), urldecode($match[2]));
}
}
$protocols = $this->config->get('github-protocols');
if (!is_array($protocols)) {
throw new \RuntimeException('Config value "github-protocols" must be an array, got ' . gettype($protocols));
}
// public github, autoswitch protocols
if (preg_match('{^(?:https?|git)://' . self::getGitHubDomainsRegex($this->config) . '/(.*)}', $url, $match)) {
$messages = array();
foreach ($protocols as $protocol) {
if ('ssh' === $protocol) {
$protoUrl = "git@" . $match[1] . ":" . $match[2];
} else {
$protoUrl = $protocol . "://" . $match[1] . "/" . $match[2];
}
if (0 === $this->process->execute(call_user_func($commandCallable, $protoUrl), $ignoredOutput, $cwd)) {
return;
}
$messages[] = '- ' . $protoUrl . "\n" . preg_replace('#^#m', ' ', $this->process->getErrorOutput());
if ($initialClone) {
$this->filesystem->removeDirectory($origCwd);
}
}
// failed to checkout, first check git accessibility
$this->throwException('Failed to clone ' . self::sanitizeUrl($url) . ' via ' . implode(', ', $protocols) . ' protocols, aborting.' . "\n\n" . implode("\n", $messages), $url);
}
// if we have a private github url and the ssh protocol is disabled then we skip it and directly fallback to https
$bypassSshForGitHub = preg_match('{^git@' . self::getGitHubDomainsRegex($this->config) . ':(.+?)\\.git$}i', $url) && !in_array('ssh', $protocols, true);
$command = call_user_func($commandCallable, $url);
$auth = null;
if ($bypassSshForGitHub || 0 !== $this->process->execute($command, $ignoredOutput, $cwd)) {
// private github repository without git access, try https with auth
if (preg_match('{^git@' . self::getGitHubDomainsRegex($this->config) . ':(.+?)\\.git$}i', $url, $match)) {
if (!$this->io->hasAuthentication($match[1])) {
$gitHubUtil = new GitHub($this->io, $this->config, $this->process);
$message = 'Cloning failed using an ssh key for authentication, enter your GitHub credentials to access private repos';
if (!$gitHubUtil->authorizeOAuth($match[1]) && $this->io->isInteractive()) {
$gitHubUtil->authorizeOAuthInteractively($match[1], $message);
}
}
if ($this->io->hasAuthentication($match[1])) {
$auth = $this->io->getAuthentication($match[1]);
$authUrl = 'https://' . rawurlencode($auth['username']) . ':' . rawurlencode($auth['password']) . '@' . $match[1] . '/' . $match[2] . '.git';
$command = call_user_func($commandCallable, $authUrl);
if (0 === $this->process->execute($command, $ignoredOutput, $cwd)) {
return;
}
}
} elseif ($this->isAuthenticationFailure($url, $match)) {
// private non-github repo that failed to authenticate
if (strpos($match[2], '@')) {
list($authParts, $match[2]) = explode('@', $match[2], 2);
}
$storeAuth = false;
if ($this->io->hasAuthentication($match[2])) {
$auth = $this->io->getAuthentication($match[2]);
} elseif ($this->io->isInteractive()) {
$defaultUsername = null;
if (isset($authParts) && $authParts) {
if (false !== strpos($authParts, ':')) {
list($defaultUsername, ) = explode(':', $authParts, 2);
} else {
$defaultUsername = $authParts;
}
}
$this->io->writeError(' Authentication required (<info>' . parse_url($url, PHP_URL_HOST) . '</info>):');
$auth = array('username' => $this->io->ask(' Username: '******'password' => $this->io->askAndHideAnswer(' Password: '******'store-auths');
}
if ($auth) {
$authUrl = $match[1] . rawurlencode($auth['username']) . ':' . rawurlencode($auth['password']) . '@' . $match[2] . $match[3];
$command = call_user_func($commandCallable, $authUrl);
if (0 === $this->process->execute($command, $ignoredOutput, $cwd)) {
$this->io->setAuthentication($match[2], $auth['username'], $auth['password']);
$authHelper = new AuthHelper($this->io, $this->config);
$authHelper->storeAuth($match[2], $storeAuth);
return;
}
}
}
if ($initialClone) {
$this->filesystem->removeDirectory($origCwd);
}
$this->throwException('Failed to execute ' . self::sanitizeUrl($command) . "\n\n" . $this->process->getErrorOutput(), $url);
}
}
/**
* Get file content or copy action.
*
* @param string $originUrl The origin URL
* @param string $fileUrl The file URL
* @param array $additionalOptions context options
* @param string $fileName the local filename
* @param boolean $progress Display the progression
*
* @throws TransportException|\Exception
* @throws TransportException When the file could not be downloaded
*
* @return bool|string
*/
protected function get($originUrl, $fileUrl, $additionalOptions = array(), $fileName = null, $progress = true)
{
if (strpos($originUrl, '.github.com') === strlen($originUrl) - 11) {
$originUrl = 'github.com';
}
$this->bytesMax = 0;
$this->originUrl = $originUrl;
$this->fileUrl = $fileUrl;
$this->fileName = $fileName;
$this->progress = $progress;
$this->lastProgress = null;
$this->retryAuthFailure = true;
$this->lastHeaders = array();
// capture username/password from URL if there is one
if (preg_match('{^https?://(.+):(.+)@([^/]+)}i', $fileUrl, $match)) {
$this->io->setAuthentication($originUrl, urldecode($match[1]), urldecode($match[2]));
}
if (isset($additionalOptions['retry-auth-failure'])) {
$this->retryAuthFailure = (bool) $additionalOptions['retry-auth-failure'];
unset($additionalOptions['retry-auth-failure']);
}
$options = $this->getOptionsForUrl($originUrl, $additionalOptions);
if ($this->io->isDebug()) {
$this->io->writeError((substr($fileUrl, 0, 4) === 'http' ? 'Downloading ' : 'Reading ') . $fileUrl);
}
if (isset($options['github-token'])) {
$fileUrl .= (false === strpos($fileUrl, '?') ? '?' : '&') . 'access_token=' . $options['github-token'];
unset($options['github-token']);
}
if (isset($options['http'])) {
$options['http']['ignore_errors'] = true;
}
if ($this->degradedMode && substr($fileUrl, 0, 21) === 'http://packagist.org/') {
// access packagist using the resolved IPv4 instead of the hostname to force IPv4 protocol
$fileUrl = 'http://' . gethostbyname('packagist.org') . substr($fileUrl, 20);
}
$ctx = StreamContextFactory::getContext($fileUrl, $options, array('notification' => array($this, 'callbackGet')));
if ($this->progress) {
$this->io->writeError(" Downloading: <comment>Connecting...</comment>", false);
}
$errorMessage = '';
$errorCode = 0;
$result = false;
set_error_handler(function ($code, $msg) use(&$errorMessage) {
if ($errorMessage) {
$errorMessage .= "\n";
}
$errorMessage .= preg_replace('{^file_get_contents\\(.*?\\): }', '', $msg);
});
try {
$result = file_get_contents($fileUrl, false, $ctx);
} catch (\Exception $e) {
if ($e instanceof TransportException && !empty($http_response_header[0])) {
$e->setHeaders($http_response_header);
}
if ($e instanceof TransportException && $result !== false) {
$e->setResponse($result);
}
$result = false;
}
if ($errorMessage && !ini_get('allow_url_fopen')) {
$errorMessage = 'allow_url_fopen must be enabled in php.ini (' . $errorMessage . ')';
}
restore_error_handler();
if (isset($e) && !$this->retry) {
if (!$this->degradedMode && false !== strpos($e->getMessage(), 'Operation timed out')) {
$this->degradedMode = true;
$this->io->writeError(array('<error>' . $e->getMessage() . '</error>', '<error>Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubleshooting.md#degraded-mode for more info</error>'));
return $this->get($this->originUrl, $this->fileUrl, $additionalOptions, $this->fileName, $this->progress);
}
throw $e;
}
// fail 4xx and 5xx responses and capture the response
if (!empty($http_response_header[0]) && preg_match('{^HTTP/\\S+ ([45]\\d\\d)}i', $http_response_header[0], $match)) {
$errorCode = $match[1];
if (!$this->retry) {
$e = new TransportException('The "' . $this->fileUrl . '" file could not be downloaded (' . $http_response_header[0] . ')', $errorCode);
$e->setHeaders($http_response_header);
$e->setResponse($result);
throw $e;
}
$result = false;
}
if ($this->progress && !$this->retry) {
$this->io->overwriteError(" Downloading: <comment>100%</comment>");
}
// decode gzip
if ($result && extension_loaded('zlib') && substr($fileUrl, 0, 4) === 'http') {
$decode = false;
foreach ($http_response_header as $header) {
if (preg_match('{^content-encoding: *gzip *$}i', $header)) {
$decode = true;
} elseif (preg_match('{^HTTP/}i', $header)) {
// In case of redirects, http_response_headers contains the headers of all responses
// so we reset the flag when a new response is being parsed as we are only interested in the last response
$decode = false;
}
}
if ($decode) {
try {
if (PHP_VERSION_ID >= 50400) {
$result = zlib_decode($result);
} else {
// work around issue with gzuncompress & co that do not work with all gzip checksums
$result = file_get_contents('compress.zlib://data:application/octet-stream;base64,' . base64_encode($result));
}
if (!$result) {
throw new TransportException('Failed to decode zlib stream');
}
} catch (\Exception $e) {
if ($this->degradedMode) {
throw $e;
}
$this->degradedMode = true;
$this->io->writeError(array('<error>Failed to decode response: ' . $e->getMessage() . '</error>', '<error>Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubleshooting.md#degraded-mode for more info</error>'));
return $this->get($this->originUrl, $this->fileUrl, $additionalOptions, $this->fileName, $this->progress);
}
}
}
// handle copy command if download was successful
if (false !== $result && null !== $fileName) {
if ('' === $result) {
throw new TransportException('"' . $this->fileUrl . '" appears broken, and returned an empty 200 response');
}
$errorMessage = '';
set_error_handler(function ($code, $msg) use(&$errorMessage) {
if ($errorMessage) {
$errorMessage .= "\n";
}
$errorMessage .= preg_replace('{^file_put_contents\\(.*?\\): }', '', $msg);
});
$result = (bool) file_put_contents($fileName, $result);
restore_error_handler();
if (false === $result) {
throw new TransportException('The "' . $this->fileUrl . '" file could not be written to ' . $fileName . ': ' . $errorMessage);
}
}
if ($this->retry) {
$this->retry = false;
$result = $this->get($this->originUrl, $this->fileUrl, $additionalOptions, $this->fileName, $this->progress);
$authHelper = new AuthHelper($this->io, $this->config);
$authHelper->storeAuth($this->originUrl, $this->storeAuth);
$this->storeAuth = false;
return $result;
}
if (false === $result) {
$e = new TransportException('The "' . $this->fileUrl . '" file could not be downloaded: ' . $errorMessage, $errorCode);
if (!empty($http_response_header[0])) {
$e->setHeaders($http_response_header);
}
if (!$this->degradedMode && false !== strpos($e->getMessage(), 'Operation timed out')) {
$this->degradedMode = true;
$this->io->writeError(array('<error>' . $e->getMessage() . '</error>', '<error>Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubleshooting.md#degraded-mode for more info</error>'));
return $this->get($this->originUrl, $this->fileUrl, $additionalOptions, $this->fileName, $this->progress);
}
throw $e;
}
if (!empty($http_response_header[0])) {
$this->lastHeaders = $http_response_header;
}
return $result;
}
protected function get($originUrl, $fileUrl, $additionalOptions = array(), $fileName = null, $progress = true)
{
if (strpos($originUrl, '.github.com') === strlen($originUrl) - 11) {
$originUrl = 'github.com';
}
$this->bytesMax = 0;
$this->originUrl = $originUrl;
$this->fileUrl = $fileUrl;
$this->fileName = $fileName;
$this->progress = $progress;
$this->lastProgress = null;
$this->retryAuthFailure = true;
$this->lastHeaders = array();
if (preg_match('{^https?://(.+):(.+)@([^/]+)}i', $fileUrl, $match)) {
$this->io->setAuthentication($originUrl, urldecode($match[1]), urldecode($match[2]));
}
if (isset($additionalOptions['retry-auth-failure'])) {
$this->retryAuthFailure = (bool) $additionalOptions['retry-auth-failure'];
unset($additionalOptions['retry-auth-failure']);
}
$options = $this->getOptionsForUrl($originUrl, $additionalOptions);
if ($this->io->isDebug()) {
$this->io->writeError((substr($fileUrl, 0, 4) === 'http' ? 'Downloading ' : 'Reading ') . $fileUrl);
}
if (isset($options['github-token'])) {
$fileUrl .= (false === strpos($fileUrl, '?') ? '?' : '&') . 'access_token=' . $options['github-token'];
unset($options['github-token']);
}
if (isset($options['http'])) {
$options['http']['ignore_errors'] = true;
}
$ctx = StreamContextFactory::getContext($fileUrl, $options, array('notification' => array($this, 'callbackGet')));
if ($this->progress) {
$this->io->writeError(" Downloading: <comment>Connecting...</comment>", false);
}
$errorMessage = '';
$errorCode = 0;
$result = false;
set_error_handler(function ($code, $msg) use(&$errorMessage) {
if ($errorMessage) {
$errorMessage .= "\n";
}
$errorMessage .= preg_replace('{^file_get_contents\\(.*?\\): }', '', $msg);
});
try {
$result = file_get_contents($fileUrl, false, $ctx);
} catch (\Exception $e) {
if ($e instanceof TransportException && !empty($http_response_header[0])) {
$e->setHeaders($http_response_header);
}
if ($e instanceof TransportException && $result !== false) {
$e->setResponse($result);
}
$result = false;
}
if ($errorMessage && !ini_get('allow_url_fopen')) {
$errorMessage = 'allow_url_fopen must be enabled in php.ini (' . $errorMessage . ')';
}
restore_error_handler();
if (isset($e) && !$this->retry) {
throw $e;
}
if (!empty($http_response_header[0]) && preg_match('{^HTTP/\\S+ ([45]\\d\\d)}i', $http_response_header[0], $match)) {
$errorCode = $match[1];
if (!$this->retry) {
$e = new TransportException('The "' . $this->fileUrl . '" file could not be downloaded (' . $http_response_header[0] . ')', $errorCode);
$e->setHeaders($http_response_header);
$e->setResponse($result);
throw $e;
}
$result = false;
}
if ($result && extension_loaded('zlib') && substr($fileUrl, 0, 4) === 'http') {
$decode = false;
foreach ($http_response_header as $header) {
if (preg_match('{^content-encoding: *gzip *$}i', $header)) {
$decode = true;
continue;
} elseif (preg_match('{^HTTP/}i', $header)) {
$decode = false;
}
}
if ($decode) {
if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
$result = zlib_decode($result);
} else {
$result = file_get_contents('compress.zlib://data:application/octet-stream;base64,' . base64_encode($result));
}
if (!$result) {
throw new TransportException('Failed to decode zlib stream');
}
}
}
if ($this->progress && !$this->retry) {
$this->io->overwriteError(" Downloading: <comment>100%</comment>");
}
if (false !== $result && null !== $fileName) {
if ('' === $result) {
throw new TransportException('"' . $this->fileUrl . '" appears broken, and returned an empty 200 response');
}
$errorMessage = '';
set_error_handler(function ($code, $msg) use(&$errorMessage) {
if ($errorMessage) {
$errorMessage .= "\n";
}
$errorMessage .= preg_replace('{^file_put_contents\\(.*?\\): }', '', $msg);
});
$result = (bool) file_put_contents($fileName, $result);
restore_error_handler();
if (false === $result) {
throw new TransportException('The "' . $this->fileUrl . '" file could not be written to ' . $fileName . ': ' . $errorMessage);
}
}
if ($this->retry) {
$this->retry = false;
$result = $this->get($this->originUrl, $this->fileUrl, $additionalOptions, $this->fileName, $this->progress);
$authHelper = new AuthHelper($this->io, $this->config);
$authHelper->storeAuth($this->originUrl, $this->storeAuth);
$this->storeAuth = false;
return $result;
}
if (false === $result) {
$e = new TransportException('The "' . $this->fileUrl . '" file could not be downloaded: ' . $errorMessage, $errorCode);
if (!empty($http_response_header[0])) {
$e->setHeaders($http_response_header);
}
throw $e;
}
if (!empty($http_response_header[0])) {
$this->lastHeaders = $http_response_header;
}
return $result;
}