Plugin: support uploading to arbitrary sync servers

Not just the ones we're syncing with

plugins/tiddlypwa/main.js

@@ -532,9 +532,11 @@ Formatted with `deno fmt`.
 			);
 			const swjs = $tw.wiki.renderTiddler('text/plain', '$:/plugins/valpackett/tiddlypwa-offline/sw.js', {});
 			try {
-				const servers = await adb(
-					this.db.transaction('syncservers').objectStore('syncservers').getAll(),
-				);
+				const servers = (variables.uploadUrl && variables.uploadToken)
+					? [{ url: variables.uploadUrl, token: variables.uploadToken }]
+					: await adb(
+						this.db.transaction('syncservers').objectStore('syncservers').getAll(),
+					);
 				const resps = await Promise.all(servers.map(({ url, token }) =>
 					fetch(url, {
 						method: 'POST',

plugins/tiddlypwa/save-dialog.tid

@@ -64,6 +64,11 @@ upload it to sync servers
 </$button>
 </$reveal>!
 
+<details>
+<summary>Or even upload to a sync server you are not currently syncing with…</summary>
+{{$:/plugins/valpackett/tiddlypwa/upload-app-form}}
+</details>
+
 {{$:/status/TiddlyPWAUploadResult}}
 
 Note that some basic configuration like the title, subtitle, favicon, theme and palette will be saved unencrypted.

plugins/tiddlypwa/upload-app-form.tid

@@ -0,0 +1,10 @@
+title: $:/plugins/valpackett/tiddlypwa/upload-app-form
+
+<label>URL: <$edit-text tiddler="$:/temp/TiddlyPWAServerURL" tag="input" default="https://" /></label>
+<label>Token: <$edit-text tiddler="$:/temp/TiddlyPWAServerToken" tag="input" default="" /></label>
+<$button>
+<$action-sendmessage $message="tiddlypwa-upload-app-wiki"
+    publishFilter={{$:/plugins/valpackett/tiddlypwa/app-filter}} 
+    uploadUrl={{$:/temp/TiddlyPWAServerURL}} uploadToken={{$:/temp/TiddlyPWAServerToken}} />
+Upload
+</$button>

tiddlers/TiddlyPWA.tid

@@ -11,6 +11,13 @@ This will reload the page, and you will be asked for a password.
 If you do not yet have one, make one up!
 Note that you must to use the same password on all TiddlyPWA instances you'd want to sync between.
 
+<details>
+<summary>Upload this version to any sync server…</summary>
+{{$:/plugins/valpackett/tiddlypwa/upload-app-form}}
+</details>
+
+{{$:/status/TiddlyPWAUploadResult}}
+
 !! Hosting a custom instance
 
 First, either start with this page or add the following plugins to a fresh TiddlyWiki file: