Modified Regex pattern to accept commands besides full executable path.

[feldrim]

Although it's the default behavior, the regex pattern added with commit 4948bd6 does not accept commands from environment paths, as I have mentioned on issue #6 . So I changed the pattern to accept commands like cmd. Tests are working but they are not ideal solutions, just workarounds. It needs some refactoring yet still capable of esting the condition.

[CLAassistant]

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[andrewmd5]

This will take some time to review due to the holidays. @healingbrew check when you have some time.

[yretenai]

The regex seems to return C for C:\Windows\System32\cmd.exe

This is your regex:

"cmd"                                         = cmd
"garbled cmd garbled"                         = garbled
"cmd.exe"                                     = cmd
"garbled cmd.exe garbled"                     = garbled
"C:\cmd.exe"                                  = C
"garbled C:\cmd.exe garbled"                  = garbled
"C:\Windows\system32\cmd.exe"                 = C
"garbled C:\Windows\system32\cmd.exe garbled" = garbled
"\\server\cmd.exe"                            = \
"garbled \\server\cmd.exe garbled"            = garbled
""warden dot dll.exe""                        = "warden
"garbled "warden dot dll.exe" garbled"        = garbled

This is the current implementation

"cmd"                                         = NULL
"garbled cmd garbled"                         = NULL
"cmd.exe"                                     = NULL
"garbled cmd.exe garbled"                     = NULL
"C:\cmd.exe"                                  = C:\cmd.exe
"garbled C:\cmd.exe garbled"                  = C:\cmd.exe
"C:\Windows\system32\cmd.exe"                 = C:\Windows\system32\cmd.exe
"garbled C:\Windows\system32\cmd.exe garbled" = C:\Windows\system32\cmd.exe
"\\server\cmd.exe"                            = \\server\cmd.exe
"garbled \\server\cmd.exe garbled"            = \\server\cmd.exe
""warden dot dll.exe""                        = NULL
"garbled "warden dot dll.exe" garbled"        = NULL

This is our fault for not writing the tests, but this PR cannot be merged until this is fixed.
The entire regex is hugely inefficient and complicated.
It can be trimmed down to
((([\w])?[:%\\\/]|").*(\.[\w:]+|"|%))|([\w\d.\\:]*(\s|$)) (add path-safe characters like _-()&)
But that yields some quirks as well

"cmd"                                         = cmd
"garbled cmd garbled"                         = garbled 
"cmd.exe"                                     = cmd.exe
"garbled cmd.exe garbled"                     = garbled 
"C:\cmd.exe"                                  = C:\cmd.exe
"garbled C:\cmd.exe garbled"                  = garbled 
"C:\Windows\system32\cmd.exe"                 = C:\Windows\system32\cmd.exe
"garbled C:\Windows\system32\cmd.exe garbled" = garbled 
"\\server\cmd.exe"                            = \\server\cmd.exe
"garbled \\server\cmd.exe garbled"            = garbled 
""warden dot dll.exe""                        = "warden dot dll.exe"
"garbled "warden dot dll.exe" garbled"        = garbled

So you can either split it up into two regexes (((([\w])?[:%\\\/]|").*(\.[\w:]+|"|%)) and ([\w\d.\\:]*(\s|$)) as a fallback which is easier to maintain I guess) or figure prioritization out.

[yretenai]

Regex fails to sanitize garbled path arguments such as lorem ipsum cmd.exe dolor and lorem ipsum C:\cmd.exe dolor, or any path starting with or containing a non-alphanumeric character.

[feldrim]

Oh, thanks. I was totally focused on the "cmd" on tutorial. The cases are very detailed and I'll work on unit tests with them. Thank you.

[feldrim]

I actually couldn't get the format except garbled in "garbled "warden dot dll.exe" garbled". We want commands in quotations? Then what's the issue with .exe. Can you please explain the format and expected result?

[yretenai]

Out of those examples, the expected outcome would be

"cmd"                                         = cmd
"garbled cmd garbled"                         = garbled 
"cmd.exe"                                     = cmd.exe
"garbled cmd.exe garbled"                     = cmd.exe 
"C:\cmd.exe"                                  = C:\cmd.exe
"garbled C:\cmd.exe garbled"                  = C:\cmd.exe 
"C:\Windows\system32\cmd.exe"                 = C:\Windows\system32\cmd.exe
"garbled C:\Windows\system32\cmd.exe garbled" = C:\Windows\system32\cmd.exe 
"\\server\cmd.exe"                            = \\server\cmd.exe
"garbled \\server\cmd.exe garbled"            = \\server\cmd.exe 
""warden dot dll.exe""                        = warden dot dll.exe
"garbled "warden dot dll.exe" garbled"        = warden dot dll.exe

[feldrim]

As of now, the tests pass but the part in quotation marks are accepted with any text inside. I believe it should be something like "command command filename.exe" or if it's specific to warden, "warden command filename.exe". Yet, it's incomplete although all tests pass.

[zbalkan]

@healingbrew Hi. I have a question. Let's say I typed something like cd "c:\Users\Some User\Desktop\Some Path Containing Spaces". Then the implementation would only care the quoted string. It might be incorrect by design.