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Adding support for http endpoint in addition to the websocket #599

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vrobert78
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In order to use Chrome Headless you need to know the webSocketDebuggerUrl.
This address can be retrieved by requesting /json/version as mentioned at https://chromedevtools.github.io/devtools-protocol/.

With this PR the goal is to support both the websocket address and the HTTP endpoint.

@GrahamCampbell GrahamCampbell changed the base branch from 1.10 to 1.11 January 17, 2024 13:08
Comment on lines 110 to 111
$parsedUrl = parse_url($socketClient);
if (isset($parsedUrl['scheme']) && ($parsedUrl['scheme']==='http' or $parsedUrl['scheme']==='https'))
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The expression could be simpler:

Suggested change
$parsedUrl = parse_url($socketClient);
if (isset($parsedUrl['scheme']) && ($parsedUrl['scheme']==='http' or $parsedUrl['scheme']==='https'))
if (\in_array(\parse_url($socketClient, PHP_URL_SCHEME), ['http', 'https'])

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please always use strict mode, unless you have a very good reason to not do it - it's less important in modern php, but in <=7.4: https://3v4l.org/Yc3UU


throw new \Exception("Unable to request $configURL");
}
else {
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This else isn't doing anything. The throw in the previous if will stop the execution on this method.

$resp = curl_exec($curl);

if ($resp === false) {
$err = curl_error($curl);
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Why get the error if we are not using it for anything?

@enricodias
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enricodias commented Jan 17, 2024

Thanks for the contribution. I left some comments in the code.
It also wouldn't hurt checking if curl is available before attempting to use it since this lib doesn't use it anywhere else and there are some styleci issues to be resolved.

@vrobert78
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Hi @enricodias, thanks a lot for your feedback. I just committed a few changes from your recommendations.


$configURL = $socketClient.'/json/version';

$resp = \file_get_contents($configURL);
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@GrahamCampbell GrahamCampbell Jan 17, 2024

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We can't call this without doing any error handling (yes, I really do mean "error" in the PHP 5 sense of the word).

@enricodias
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Some environments will prevent file functions from accessing external urls. I could just check if curl is available and use it.

@vrobert78
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Some environments will prevent file functions from accessing external urls. I could just check if curl is available and use it.

Hey @enricodias , curl is back and I've added a check for it.

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Looks good to me now.

@@ -106,6 +106,35 @@ public function __construct($socketClient, LoggerInterface $logger = null, int $

// create socket client
if (\is_string($socketClient)) {
if (\in_array(\parse_url($socketClient, \PHP_URL_SCHEME), ['http', 'https'])) {
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@osbre osbre May 24, 2024

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Wouldn't it be better to extract all this code into a private/protected method? something like

private function retrieveWsDebuggerUrl(string $endpoint): string

@GrahamCampbell
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I'm not going to go ahead with this.

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5 participants