[Stable10] Catch internal server error from remote on decline

[VicDeo]

Backport of #35178

Description

Handle 500 exception on declining a share

Motivation and Context

Before 10.2 response for declining non-existing shares was 500
#34786 changes HTTP status from 500 to 410
But declining any non-existing share for OC lower than 10.2 still causing unhandled exception.

How Has This Been Tested?

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Database schema changes (next release will require increase of minor version instead of patch)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests only (no source changes)

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:

[codecov]

Codecov Report

Merging #35321 into stable10 will decrease coverage by <.01%.
The diff coverage is 0%.

@@              Coverage Diff               @@
##             stable10   #35321      +/-   ##
==============================================
- Coverage       64.64%   64.64%   -0.01%     
- Complexity      20089    20093       +4     
==============================================
  Files            1289     1289              
  Lines           76943    76946       +3     
  Branches         1300     1300              
==============================================
+ Hits            49738    49739       +1     
- Misses          26821    26823       +2     
  Partials          384      384

Flag	Coverage Δ	Complexity Δ
#javascript	53.85% <ø> (ø)	0 <ø> (ø)	⬇️
#phpunit	65.78% <0%> (-0.01%)	20093 <0> (+4)

Impacted Files	Coverage Δ	Complexity Δ
...s/federatedfilesharing/lib/AppInfo/Application.php	44.96% <0%> (-0.93%)	23 <0> (+4)
lib/private/Files/Storage/Wrapper/Encryption.php	76.41% <0%> (+0.24%)	156% <0%> (ø)	⬇️

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[codecov]

Codecov Report

Merging #35321 into stable10 will decrease coverage by <.01%.
The diff coverage is 0%.

@@              Coverage Diff               @@
##             stable10   #35321      +/-   ##
==============================================
- Coverage       64.64%   64.64%   -0.01%     
- Complexity      20089    20093       +4     
==============================================
  Files            1289     1289              
  Lines           76943    76946       +3     
  Branches         1300     1300              
==============================================
+ Hits            49738    49739       +1     
- Misses          26821    26823       +2     
  Partials          384      384

Flag	Coverage Δ	Complexity Δ
#javascript	53.85% <ø> (ø)	0 <ø> (ø)	⬇️
#phpunit	65.78% <0%> (-0.01%)	20093 <0> (+4)

Impacted Files	Coverage Δ	Complexity Δ
...s/federatedfilesharing/lib/AppInfo/Application.php	44.96% <0%> (-0.93%)	23 <0> (+4)
lib/private/Files/Storage/Wrapper/Encryption.php	76.41% <0%> (+0.24%)	156% <0%> (ø)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update d7cda0d...c07b0ce. Read the comment docs.

[davitol]

@VicDeo Following the steps from the OP I get a 404: