add polr shortener support

polr.py

@@ -0,0 +1,51 @@
+from src import ModuleManager, utils
+
+URL = "https://{}/api/v2/action/shorten"
+
+
+class Module(ModuleManager.BaseModule):
+    def on_load(self):
+        domain_setting = utils.Setting("polr-baseurl", "Base URL for polr installation")
+        self.exports.add("channelset", domain_setting)
+        self.exports.add("serverset", domain_setting)
+        self.exports.add("botset", domain_setting)
+
+        apikey_setting = utils.SensitiveSetting("polr-apikey", "Set polr API key")
+        self.exports.add("channelset", apikey_setting)
+        self.exports.add("serverset", apikey_setting)
+        self.exports.add("botset", apikey_setting)
+
+        self.exports.add("shorturl-x-polr", self._shorturl)
+
+    def _shorturl(self, server, context, url):
+        if len(url) < 18:
+            return None
+
+        if context:
+            baseurl = context.get_setting(
+                "polr-baseurl",
+                server.get_setting(
+                    "polr-baseurl", self.bot.get_setting("polr-baseurl")
+                ),
+            )
+
+            apikey = context.get_setting(
+                "polr-apikey",
+                server.get_setting("polr-apikey", self.bot.get_setting("polr-apikey")),
+            )
+
+            if baseurl and apikey:
+                page = utils.http.request(
+                    URL.format(baseurl),
+                    method="POST",
+                    post_data={
+                        "url": url,
+                        "key": apikey,
+                        "response_type": "plain_text",
+                    },
+                )
+
+                if page and page.data:
+                    return page.decode("utf8")
+
+        return None