provide HTTP header parser which honours continuation lines and despite the fact that continuation lines have been deprecated - as they still exist in the wild.

1 files changed, 46 insertions, 0 deletions

diff --git a/Zotlabs/Web/HTMLHeaders.php b/Zotlabs/Web/HTMLHeaders.php
new file mode 100644
index 000000000..f9bc3043b
--- /dev/null
+++ b/Zotlabs/Web/HTMLHeaders.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace Zotlabs\Web;
+
+class HTMLHeaders {
+
+	private $in_progress = [];
+	private $parsed = [];
+
+
+	function __construct($headers) {
+
+		$lines = explode("\n",str_replace("\r",'',$headers));
+		if($lines) {
+			foreach($lines as $line) {
+				if(preg_match('/^\s+/',$line,$matches) && trim($line)) {
+					if($this->in_progress['k']) {
+						$this->in_progress['v'] .= ' ' . ltrim($line);
+						continue;
+					}
+				}
+				else {
+					if($this->in_progress['k']) {
+						$this->parsed[] = [ $this->in_progress['k'] => $this->in_progress['v'] ];
+						$this->in_progress = [];
+					}
+
+					$this->in_progress['k'] = strtolower(substr($line,0,strpos($line,':')));
+					$this->in_progress['v'] = ltrim(substr($line,strpos($line,':') + 1));
+				}
+
+			}
+			if($this->in_progress['k']) {
+				$this->parsed[] = [ $this->in_progress['k'] => $this->in_progress['v'] ];
+				$this->in_progress = [];
+			}
+		}
+	}
+
+	function fetch() {
+		return $this->parsed;
+	}
+}
+
+
+