n/shaarli-plugin-shaargem
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shaarli-plugin-shaargem
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#2 better header analysis

This commit is contained in:
n 2021-02-28 01:31:44 +01:00
parent b0da900d3f
commit c47822f70e
Signed by: n
GPG Key ID: E96086FC951DAE30
1 changed files with 32 additions and 10 deletions
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42
shaargem.php
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@ -122,11 +122,13 @@ function shaargem_dummy_translation()
t('Provides Gemini protocol support.');
}
/**
* Find capsule's title
*/
function fetch_iri_title($iri)
{
$ret = preg_match(",gemini://([\d\w\.\+\-@\:%._\~#=]+)/?,", $iri ,$domain);
static $redirect_counter = 0;
error_log("ret:".$ret);
if ($ret)
{
$stream_context = stream_context_create([ 'ssl' => [
@ -142,33 +144,53 @@ function fetch_iri_title($iri)
} else {
fwrite($fp, $iri."\r\n");
$header = fgets($fp);
error_log("headers:".$headers);
$ret = preg_match(",^(\d\d) (.*)\r\n$,", $header, $headers);
$status = $headers[1];
$meta = $headers[2];
error_log("status:".$status.", meta:".$meta);
$max_redirects = 10;
if ($status[0] == 3 and $redirect_counter < $max_redirects)
error_log("status:".$status.", meta:".$meta);
// status 1x cannot be handled by shaarli, but input field can be used as title
if ($status[0] == 1)
{
$redirect_counter++;
error_log("[shaargem] found status 30. redirecting to ".$meta." (".$redirect_counter."/".$max_redirects.")");
$title[1] = fetch_iri_title($meta);
}
return $meta;
}
// status 2x ok
elseif ($status[0] == 2)
{
$nblines = 1;
while($line = fgets($fp)) {
$ret = preg_match(",# (.*),",$line,$title);
if ($title[0] or $nblines > 100 ) {
error_log($nblines);
break;
}
$nblines++;
}
}
// status 3x redirect
elseif ($status[0] == 3 and $redirect_counter < $max_redirects)
{
$redirect_counter++;
error_log("[shaargem] found status 30. redirecting to ".$meta." (".$redirect_counter."/".$max_redirects.")");
$title[1] = fetch_iri_title($meta);
}
// 4x 5x 6x are error statuses, should find a better way to display that
elseif ($status[0] == 4)
{
return 'Status '.$status.' (TEMPORARY FAILURE): '.$meta;
}
elseif ($status[0] == 5)
{
return 'Status '.$status.' (PERMANENT FAILURE): '.$meta;
}
elseif ($status[0] == 6)
{
return 'Status '.$status.' (CLIENT CERTIFICATE REQUIRED): '.$meta;
}
else
{
error_log("[shaargem] invalid response:".$header);
return "Invalid response:".$header;
}
fclose($fp);
}