{Error Improvement} Catch and categorize HttpError in core exception handler

[houk-ms]

Description

HTTPErrors are widely raised in different command groups, while they are not caught in core exception handler. Previously, CLI would crash and users would get the raw traces when these error happen.

This PR supports

• catching the HTTPErrors in core exception handler.
• categorizing them into the new defined error types.

Here is a table showing the uncaught HTTPError count in AzureCLI@2.12.0 in last month.

CommandGroup	HTTPError Count
NETWORK	1392
DLS	208
AD	123
VM	77
AKS	51
LOGIN	41
CONTAINER	36
GROUP	35
PROVIDER	31
COSMOSDB	27
DEPLOYMENT	27
ROLE	26
ACCOUNT	20
RESOURCE	11
STORAGE	11
DT	9
TAG	9
KEYVAULT	8
IMAGE	7
ARO	4
POLICY	4
SQL	4
VMSS	4
BACKUP	3
SIG	3
WEBAPP	3
DISK	2
FUNCTIONAPP	2
IOT	2
ACR	1
FUSION	1

Testing Guide

You can test the case by raising an HTTPError manually in your codes, for example

Previously, when the HTTPError was not caught, CLI just crashed.

CLIInternalError: The command failed with an unexpected error. Here is the traceback:
Traceback (most recent call last):
  File "C:\Users\houk\Desktop\msws\env_new\lib\site-packages\knack\cli.py", line 215, in invoke
    cmd_result = self.invocation.execute(args)
  File "c:\users\houk\desktop\msws\azure-cli\src\azure-cli-core\azure\cli\core\commands\__init__.py", line 654, in execute
    raise ex
  File "c:\users\houk\desktop\msws\azure-cli\src\azure-cli-core\azure\cli\core\commands\__init__.py", line 718, in _run_jobs_serially
    results.append(self._run_job(expanded_arg, cmd_copy))
  File "c:\users\houk\desktop\msws\azure-cli\src\azure-cli-core\azure\cli\core\commands\__init__.py", line 711, in _run_job
    six.reraise(*sys.exc_info())
  File "C:\Users\houk\Desktop\msws\env_new\lib\site-packages\six.py", line 703, in reraise
    raise value
  File "c:\users\houk\desktop\msws\azure-cli\src\azure-cli-core\azure\cli\core\commands\__init__.py", line 688, in _run_job
    result = cmd_copy(params)
  File "c:\users\houk\desktop\msws\azure-cli\src\azure-cli-core\azure\cli\core\commands\__init__.py", line 325, in __call__
    return self.handler(*args, **kwargs)
  File "c:\users\houk\desktop\msws\azure-cli\src\azure-cli-core\azure\cli\core\__init__.py", line 784, in default_command_handler
    return op(**command_args)
  File "c:\users\houk\desktop\msws\azure-cli\src\azure-cli\azure\cli\command_modules\vm\custom.py", line 581, in list_snapshots
    raise err
requests.exceptions.HTTPError: [Errno 400] test_url: 'test_err_message'
To open an issue, please run: 'az feedback'

Now,

BadRequestError: [Errno 400] test_url: 'test_err_message'

[houk-ms]

Previously, these errors make CLI crashed and were categorized into ClientError. Now they are categorized into UserFault or ServiceError according to the status code.

[houk-ms]

#15314

[houk-ms]

#14979