From d4f18144150d2d552631ad302985612f0187a56a Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <noreply@fakecake.org>
Date: Wed, 29 Apr 2020 11:32:17 +0300
Subject: initial

---
 README.md |   6 ++++
 init.php  | 117 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 123 insertions(+)
 create mode 100644 README.md
 create mode 100644 init.php

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..286e2f9
--- /dev/null
+++ b/README.md
@@ -0,0 +1,6 @@
+Overrides content type for enclosures based on data returned by HTTP server
+for enclosure URLs. Helps if enclosures are not detected properly as images, etc.
+
+Enable for specific feeds in the feed editor.
+
+Git clone to ``(tt-rss-root)/plugins.local/af_enclosure_fix_type``.
diff --git a/init.php b/init.php
new file mode 100644
index 0000000..2534897
--- /dev/null
+++ b/init.php
@@ -0,0 +1,117 @@
+<?php
+
+use andreskrey\Readability\Readability;
+use andreskrey\Readability\Configuration;
+
+class Af_Enclosure_Fix_Type extends Plugin {
+
+	/* @var PluginHost $host */
+	private $host;
+
+	function about() {
+		return array(1.0,
+			"Overrides content type for enclosures based on server-provided data",
+			"fox");
+	}
+
+	function save() {
+		$enable_share_anything = checkbox_to_sql_bool($_POST["enable_share_anything"]);
+
+		$this->host->set($this, "enable_share_anything", $enable_share_anything);
+
+		echo __("Data saved.");
+	}
+
+	function init($host)
+	{
+		$this->host = $host;
+
+		if (version_compare(PHP_VERSION, '5.6.0', '<')) {
+			return;
+		}
+
+		$host->add_hook($host::HOOK_ENCLOSURE_IMPORTED, $this);
+		$host->add_hook($host::HOOK_PREFS_EDIT_FEED, $this);
+		$host->add_hook($host::HOOK_PREFS_SAVE_FEED, $this);
+
+		$host->add_filter_action($this, "action_fix_enclosure_type", __("Fix media enclosures"));
+	}
+
+	/** @noinspection PhpUnused */
+	function hook_prefs_edit_feed($feed_id) {
+		print "<header>".__("Override enclosure content type")."</header>";
+		print "<section>";
+
+		$enabled_feeds = $this->host->get($this, "enabled_feeds");
+		if (!is_array($enabled_feeds)) $enabled_feeds = array();
+
+		$key = array_search($feed_id, $enabled_feeds);
+		$checked = $key !== FALSE ? "checked" : "";
+
+		print "<fieldset>";
+
+		print "<label class='checkbox'><input dojoType='dijit.form.CheckBox' type='checkbox' id='af_enclosure_fix_type_enabled'
+			name='af_enclosure_fix_type_enabled' $checked>&nbsp;".__('Enable for this feed')."</label>";
+
+		print "</fieldset>";
+
+		print "</section>";
+	}
+
+	/** @noinspection PhpUnused */
+	function hook_prefs_save_feed($feed_id) {
+		$enabled_feeds = $this->filter_unknown_feeds($this->host->get($this, "enabled_feeds"));
+		if (!is_array($enabled_feeds)) $enabled_feeds = array();
+
+		$enable = checkbox_to_sql_bool($_POST["af_enclosure_fix_type_enabled"]);
+		$key = array_search($feed_id, $enabled_feeds);
+
+		if ($enable) {
+			if ($key === FALSE) {
+				array_push($enabled_feeds, $feed_id);
+			}
+		} else {
+			if ($key !== FALSE) {
+				unset($enabled_feeds[$key]);
+			}
+		}
+
+		$this->host->set($this, "enabled_feeds", $enabled_feeds);
+	}
+
+	/** @noinspection PhpUnused */
+	function hook_enclosure_imported($enc, $feed) {
+		$enabled_feeds = $this->host->get($this, "enabled_feeds");
+
+		if (!is_array($enabled_feeds) || array_search($feed, $enabled_feeds) === FALSE)
+			return $enc;
+
+		$headers = @get_headers($enc->link, 1);
+
+		if (is_array($headers) && isset($headers["Content-Type"])) {
+			$enc->type = $headers["Content-Type"];
+		}
+
+		return $enc;
+	}
+
+	private function filter_unknown_feeds($enabled_feeds) {
+		$tmp = array();
+
+		foreach ($enabled_feeds as $feed) {
+
+			$sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE id = ? AND owner_uid = ?");
+			$sth->execute([$feed, $_SESSION['uid']]);
+
+			if ($row = $sth->fetch()) {
+				array_push($tmp, $feed);
+			}
+		}
+
+		return $tmp;
+	}
+
+	function api_version() {
+		return 2;
+	}
+}
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