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Clarify highlight.js download process

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This commit is contained in:
J. King 2019-08-08 18:07:18 -04:00
parent 705e506bfc
commit 440ea11e27
1 changed files with 5 additions and 0 deletions
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5
RoboFile.php
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@ -229,6 +229,7 @@ class RoboFile extends \Robo\Tasks {
}
// download highlight.js
$t->addCode(function() use ($languages, $tmp, $themeout) {
// compile the list of desired language (enumerated above) into an application/x-www-form-urlencoded body
$post = http_build_query((function($langs) {
$out = [];
foreach($langs as $l) {
@ -236,6 +237,7 @@ class RoboFile extends \Robo\Tasks {
}
return $out;
})($languages));
// get the two cross-site request forgery tokens the Highlight.js Web site requires
$conn = @fopen("https://highlightjs.org/download/", "r");
if ($conn === false) {
throw new Exception("Unable to download Highlight.js");
@ -247,7 +249,9 @@ class RoboFile extends \Robo\Tasks {
}
$token = stream_get_contents($conn);
preg_match("/<input type='hidden' name='csrfmiddlewaretoken' value='([^']*)'/", $token, $token);
// add the form CSRF token to the POST body
$post = "csrfmiddlewaretoken={$token[1]}&$post";
// download a copy of Highlight.js with the desired languages to a temporary file
$hljs = @file_get_contents("https://highlightjs.org/download/", false, stream_context_create(['http' => [
'method' => "POST",
'content' => $post,
@ -262,6 +266,7 @@ class RoboFile extends \Robo\Tasks {
} else {
file_put_contents($tmp."highlightjs.zip", $hljs);
}
// extract the downloaded zip file and keep only the JS file
$this->taskExtract($tmp."highlightjs.zip")->to($tmp."hljs")->run();
$this->taskFilesystemStack()->copy($tmp."hljs".\DIRECTORY_SEPARATOR."highlight.pack.js", $themeout."highlight.pack.js")->run();
}, "downloadHighlightjs");