Add Transmission widget

- Update http.js to support writing request bodies
- Update http.js to support returning all response headers

resolves: #104

src/components/services/widget.jsx

@@ -8,6 +8,7 @@ import Portainer from "./widgets/service/portainer";
 import Emby from "./widgets/service/emby";
 import Nzbget from "./widgets/service/nzbget";
 import SABnzbd from "./widgets/service/sabnzbd";
+import Transmission from "./widgets/service/transmission";
 import Docker from "./widgets/service/docker";
 import Pihole from "./widgets/service/pihole";
 import Rutorrent from "./widgets/service/rutorrent";
@@ -31,6 +32,8 @@ const widgetMappings = {
   emby: Emby,
   jellyfin: Jellyfin,
   nzbget: Nzbget,
+  sabnzbd: SABnzbd,
+  transmission: Transmission,
   pihole: Pihole,
   rutorrent: Rutorrent,
   speedtest: Speedtest,
@@ -41,7 +44,6 @@ const widgetMappings = {
   npm: Npm,
   tautulli: Tautulli,
   gotify: Gotify,
-  sabnzbd: SABnzbd
 };
 
 export default function Widget({ service }) {

src/components/services/widgets/service/sabnzbd.jsx

@@ -29,7 +29,7 @@ export default function SABnzbd({ service }) {
 
   return (
     <Widget>
-      <Block label={t("sabnzbd.rate")} value={`${queueData.queue.speed}bps`} />
+      <Block label={t("sabnzbd.rate")} value={`${queueData.queue.speed}B/s`} />
       <Block label={t("sabnzbd.queue")} value={queueData.queue.noofslots} />
       <Block label={t("sabnzbd.timeleft")} value={queueData.queue.timeleft} />
     </Widget>

src/components/services/widgets/service/transmission.jsx

@@ -0,0 +1,69 @@
+import useSWR from "swr";
+import { useTranslation } from "react-i18next";
+
+import Widget from "../widget";
+import Block from "../block";
+
+import { formatApiUrl } from "utils/api-helpers";
+
+export default function Transmission({ service }) {
+  const { t } = useTranslation();
+
+  const config = service.widget;
+
+  const { data: torrentData, error: torrentError } = useSWR(formatApiUrl(config));
+
+  if (torrentError) {
+    return <Widget error={t("widget.api_error")} />;
+  }
+
+  if (!torrentData) {
+    return (
+      <Widget>
+        <Block label={t("transmission.leech")} />
+        <Block label={t("transmission.download")} />
+        <Block label={t("transmission.seed")} />
+        <Block label={t("transmission.upload")} />
+      </Widget>
+    );
+  }
+
+  const torrents = torrentData.arguments.torrents;
+  let rateDl = 0;
+  let rateUl = 0;
+  let completed = 0;
+
+  for (let torrent of torrents) {
+    rateDl += torrent.rateDownload;
+    rateUl += torrent.rateUpload;
+    if (torrent.percentDone  === 1) {
+      completed++;
+    }
+  }
+
+  const leech = torrents.length - completed;
+
+  let unitsDl = "KB/s";
+  let unitsUl = "KB/s";
+  rateDl /= 1024;
+  rateUl /= 1024;
+
+  if (rateDl > 1024) {
+    rateDl /= 1024;
+    unitsDl = "MB/s";
+  }
+
+  if (rateUl > 1024) {
+    rateUl /= 1024;
+    unitsUl = "MB/s";
+  }
+
+  return (
+    <Widget>
+      <Block label={t("transmission.leech")} value={leech} />
+      <Block label={t("transmission.download")} value={`${rateDl.toFixed(2)} ${unitsDl}`} />
+      <Block label={t("transmission.seed")} value={completed} />
+      <Block label={t("transmission.upload")} value={`${rateUl.toFixed(2)} ${unitsUl}`} />
+    </Widget>
+  );
+}