todesk: update livecheck

[samford]

Important: Do not tick a checkbox if you haven’t performed its action. Honesty is indispensable for a smooth review process.

In the following questions <cask> is the token of the cask you're submitting.

After making any changes to a cask, existing or new, verify:

• The submission is for a stable version or documented exception.
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• Named the cask according to the token reference.
• Checked the cask was not already refused.
• Checked the cask is submitted to the correct repo.
• brew audit --cask --new <cask> worked successfully.
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• brew uninstall --cask <cask> worked successfully.

---

The existing livecheck block for todesk checks an upstream release notes page but the response body only contains a <script> element when checked with curl, so it gives an Unable to get versions error. This seems to be true regardless of headers (e.g., user agent, etc.).

This updates the livecheck block to check the download page and match the version from the pkg URL (found in some JavaScript code).

[samford]

Looks like the SHA256 changed since this was last updated:

==> Downloading https://dl.todesk.com/macos/ToDesk_4.7.2.1.pkg
Downloaded to: /Users/runner/Library/Caches/Homebrew/downloads/cd1dd993fe8cf89307cc0bafc24612ac8d1a6b903152d72d19a6fe512662176b--ToDesk_4.7.2.1.pkg
Warning: Cask reports different sha256: cba50ad3b10523f71175953d4606d3daf122d344dd1e5f130fd190a93ba509e8
SHA256: dbc167b9f720430990fcc0e3d035f99a0f649017b0a81f21ca8be61ed5d3266e

[miccal]

SHA256 keeps changing:

==> Downloading https://dl.todesk.com/macos/ToDesk_4.7.2.1.pkg
Downloaded to: /Users/runner/Library/Caches/Homebrew/downloads/cd1dd993fe8cf89307cc0bafc24612ac8d1a6b903152d72d19a6fe512662176b--ToDesk_4.7.2.1.pkg
SHA256: d9c262bd5863847186ad844b8e893882b8cddf8c88a14bce6ac1e459b3273a45
==> Retrying download in 2s... (4 tries left)
==> Downloading https://dl.todesk.com/macos/ToDesk_4.7.2.1.pkg
Downloaded to: /Users/runner/Library/Caches/Homebrew/downloads/cd1dd993fe8cf89307cc0bafc24612ac8d1a6b903152d72d19a6fe512662176b--ToDesk_4.7.2.1.pkg
SHA256: f56784698bc6a94d4b0f55ef49d544f8ce870c5c78874fb738178540a81bf47e
==> Retrying download in 4s... (3 tries left)
==> Downloading https://dl.todesk.com/macos/ToDesk_4.7.2.1.pkg
Downloaded to: /Users/runner/Library/Caches/Homebrew/downloads/cd1dd993fe8cf89307cc0bafc24612ac8d1a6b903152d72d19a6fe512662176b--ToDesk_4.7.2.1.pkg
SHA256: 99e1ebdd5d9d3de6ff4c36be8c52d8f63acaeab9d2eaa5bf267793c5776a331d
==> Retrying download in 8s... (2 tries left)
==> Downloading https://dl.todesk.com/macos/ToDesk_4.7.2.1.pkg
Downloaded to: /Users/runner/Library/Caches/Homebrew/downloads/cd1dd993fe8cf89307cc0bafc24612ac8d1a6b903152d72d19a6fe512662176b--ToDesk_4.7.2.1.pkg
SHA256: aca5daf2e671c03cd21ce979d27f470d4ffcf62b9bb234a1e0fc4d6cacd5cc25
==> Retrying download in 16s... (1 try left)
==> Downloading https://dl.todesk.com/macos/ToDesk_4.7.2.1.pkg
Downloaded to: /Users/runner/Library/Caches/Homebrew/downloads/cd1dd993fe8cf89307cc0bafc24612ac8d1a6b903152d72d19a6fe512662176b--ToDesk_4.7.2.1.pkg
SHA256: a8a451b3da052ab7bdb101adb4f9ed925db73e7c0ce6b15f9a6b24a482be3033
Warning: Cask reports different sha256: dbc167b9f720430990fcc0e3d035f99a0f649017b0a81f21ca8be61ed5d3266e

[bevanjkay]

@razvanazamfirei we shouldn't use :no_check here, it's not getting updated in place. The download is returning a different response on subsequent retries.

[krehel]

Sorry, accidentally deleted the branch!

[Aaron-212]

Seems that Todesk is blocking users from downloading with Homebrew.

$ brew fetch todesk --verbose --force
==> Downloading https://dl.todesk.com/macos/ToDesk_4.7.2.1.pkg
/usr/bin/env /opt/homebrew/Library/Homebrew/shims/shared/curl --disable --cookie /dev/null --globoff --show-error --user-agent Homebrew/4.3.0-40-g1fac683\ \(Macintosh\;\ arm64\ Mac\ OS\ X\ 14.5\)\ curl/8.6.0 --header Accept-Language:\ en --fail --retry 3 --remote-time --output /Users/aaron212/Library/Caches/Homebrew/downloads/cd1dd993fe8cf89307cc0bafc24612ac8d1a6b903152d72d19a6fe512662176b--ToDesk_4.7.2.1.pkg.incomplete --location https://dl.todesk.com/macos/ToDesk_4.7.2.1.pkg
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  1010  100  1010    0     0   1005      0  0:00:01  0:00:01 --:--:--  1005
Downloaded to: /Users/aaron212/Library/Caches/Homebrew/downloads/cd1dd993fe8cf89307cc0bafc24612ac8d1a6b903152d72d19a6fe512662176b--ToDesk_4.7.2.1.pkg
SHA256: 7cd79d1489cd20d8b3868f2253e6226306302d1d8e9513a3de2d135b0c01d27c
==> Verifying checksum for 'cd1dd993fe8cf89307cc0bafc24612ac8d1a6b903152d72d19a6fe512662176b--ToDesk_4.7.2.1.pkg'
Warning: Cask reports different sha256: cba50ad3b10523f71175953d4606d3daf122d344dd1e5f130fd190a93ba509e8


$ cat /Users/aaron212/Library/Caches/Homebrew/downloads/cd1dd993fe8cf89307cc0bafc24612ac8d1a6b903152d72d19a6fe512662176b--ToDesk_4.7.2.1.pkg
<script>var _0x49a6=['wyeCN','4|2|0|3|1','wQzOV','split','iTyzs','pCQRM','cookie','location.href=location.href.replace(/[?|&]tads/,\x20\x27\x27)','WTKkN','bOYDu','dtzqS'];(function(a,c){var b=function(b){while(--b){a['push'](a['shift']());}};b(++c);}(_0x49a6,0x147));var _0x649a=function(a,c){a=a-0x0;var b=_0x49a6[a];return b;};function a(){var a={'WTKkN':1065911934,'bOYDu':71984353,'dtzqS':function d(a,b){return a+b;},'wyeCN':260039576,'pCQRM':function e(a){return a();}};var b=0x0;b+=a[_0x649a('0x0')];b+=a[_0x649a('0x1')];b=a[_0x649a('0x2')](b,a[_0x649a('0x3')]);function c(){var b={'wQzOV':_0x649a('0x4'),'iTyzs':function e(a,b){return a+b;}};var c=b[_0x649a('0x5')][_0x649a('0x6')]('|'),d=0x0;while(!![]){switch(c[d++]){case'0':a+=0xd9;continue;case'1':return a;continue;case'2':a+=0xa4;continue;case'3':a=b[_0x649a('0x7')](a,0x1c0);continue;case'4':var a=0x0;continue;}break;}}return a[_0x649a('0x8')](c),b;}document[_0x649a('0x9')]='__tst_status='+a()+'#;';setTimeout(_0x649a('0xa'),0x4b0);</script>

The obfuscated JS code keeps changing so the SHA256 also keeps changing.

Also, I tested a few times. The only way to download Todesk from command line is using a proper browser UA and a Chinese internet environment.

$ curl https://dl.todesk.com/macos/ToDesk_4.7.2.1.pkg -A "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36 Edg/109.0.1518.14"

Missing any of these, the url will only return garbage.

[krehel]

Thanks @Aaron-212 for looking into this. Unfortunately, that may require removing this software the repository if we can't get a stable download.