gitea: Gitea is slow when external avatar services are down

• Gitea version (or commit ref): 1.7
• Git version:
• Operating system: RedHat 7
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (provide example URL)
  • No
  • Not relevant
• Log gist:

Console log: [Macaron] 2019-02-12 14:47:11: Started GET / for 10.10.10.1 [Macaron] 2019-02-12 14:48:11: Completed GET / 200 OK in 1m0.064527745s

app.log -file: 404 2019/02/12 14:47:11 [D] Session ID: 541269a9dc47baf3 405 2019/02/12 14:47:11 [D] CSRF Token: -IiHK1CVOgkwyuyXL13P1Gri6Xc6MTU0OTk3NTQ5NzM3NzY5MDYxNg== 406 2019/02/12 14:47:11 [D] Template: user/dashboard/dashboard 407 2019/02/12 14:47:31 […modules/base/tool.go:216 SizedAvatarLink()] [E] LibravatarService.FromEmail(email=x@localhost): error 407 lookup _avatars-sec._tcp.localhost on 4.2.2.2:53: read udp 10.0.2.15:45383->4.2.2.2:53: i/o timeout 408 2019/02/12 14:47:51 […modules/base/tool.go:216 SizedAvatarLink()] [E] LibravatarService.FromEmail(email=x@localhost): error 408 lookup _avatars-sec._tcp.localhost on 4.2.2.2:53: read udp 10.0.2.15:58838->4.2.2.2:53: i/o timeout 409 2019/02/12 14:48:11 […modules/base/tool.go:216 SizedAvatarLink()] [E] LibravatarService.FromEmail(email=x@localhost): error 409 lookup _avatars-sec._tcp.localhost on 4.2.2.2:53: read udp 10.0.2.15:42802->4.2.2.2:53: i/o timeout

Description

When enabling external avatars, when those sites are down or doesn’t reply in a timely fashion, I think Gitea isn’t behaving in a nice way… As seen from the logs above… Browser makes a request, then exactly 1m after it actually starts loading the page and resources aso… 1 minute per page load, because an external avatar request timed out.

I think this should be a lot shorter cut off time than one minute, or be configurable.