TiddlyWiki node.js process returns empty HTTP response (only when running as a service!)

[Joseph Long]

Hi all,

I've managed to get very close to my desired set-up, but stuck at the last step. I wanted to use my personal server to host a TW5 instance in order to have a single 'main' repository for my notes. I've installed node.js and TiddlyWiki to run as the web server user (nginx), and running the command

sudo -u nginx tiddlywiki /srv/tiddlywiki --server 8080 \$:/core/save/all text/plain text/html uname pass 107.191.41.74

boots up a TiddlyWiki server and all appears to be good (I can open it in my browser, save edits, etc.). When I attempt to make this service start on boot as a systemd service unit, things go wrong. I still get a response when visiting in my browser, but it's entirely empty (no content in the HTTP response body).

The service invokes the same command I'm using--though it uses full paths to executables, of course--and reports that the server has started successfully:

$ sudo systemctl status tiddlywiki

 

● tiddlywiki.service - Single-user TiddlyWiki server

   Loaded: loaded (/nix/store/p2jx6ga4m1mlf0zb47an897cfa687azf-unit-tiddlywiki.service/tiddlywiki.service)

   Active: active (running) since Sun 2015-12-27 12:03:32 EST; 56s ago

  Process: 3961 ExecStartPre=/nix/store/iby05rw4sbiwp548sh1sbhknhvxivyl5-unit-script/bin/tiddlywiki-pre-start (code=exited, status=0/SUCCESS)

 Main PID: 3965 (tiddlywiki)

   CGroup: /system.slice/tiddlywiki.service

           └─3965 /nix/store/3da96q7q3qcym4vbb1v05806ap6rnxr2-nodejs-0.12.7/bin/node /nix/store/vr66v8qkx6mqs0rqxigmadxa2ph2qd60-tiddlywiki-5.1.9/bin/tiddlywiki /srv/tiddlywiki --server 8080 \$:/core/save/all text/plain text/html uname pass 107.191.41.74

Dec 27 12:03:32 crow systemd[1]: Starting Single-user TiddlyWiki server...

Dec 27 12:03:32 crow systemd[1]: Started Single-user TiddlyWiki server.

Dec 27 12:03:32 crow tiddlywiki[3965]: Serving on 107.191.41.74:8080

Dec 27 12:03:32 crow tiddlywiki[3965]: (press ctrl-C to exit)

Dec 27 12:03:33 crow tiddlywiki[3965]: syncer-server: Dispatching 'save' task: $:/StoryList

Dec 27 12:03:34 crow tiddlywiki[3965]: FileSystem: Saved file /srv/tiddlywiki/tiddlers/$__StoryList.tid 

All looks good, right? But then when I try to access http://uname:pa...@107.191.41.74:8080/ I get an empty response. I get the 401 authorization required response if I don't specify username and password, so the request is clearly making it to the tiddlywiki process:

$ curl -i http://107.191.41.74:8080/

HTTP/1.1 401 Authentication required

WWW-Authenticate: Basic realm="Please provide your username and password to login to My ~TiddlyWiki"

Date: Sun, 27 Dec 2015 17:07:30 GMT

Connection: keep-alive

Transfer-Encoding: chunked

When I supply username and password, though:

$ curl -i http://uname:pa...@107.191.41.74:8080/

HTTP/1.1 200 OK

Content-Type: text/html

Date: Sun, 27 Dec 2015 17:07:51 GMT

Connection: keep-alive

Transfer-Encoding: chunked

Can anyone hazard a guess as to what's going on, and how to fix it?

Many thanks,

Joseph Long