upstream/mercurial-mirror Files · rust/hg-core/src/exit_codes.rs

hgweb: encode WSGI environment using the ISO-8859-1 codec...

hgweb: encode WSGI environment using the ISO-8859-1 codec The WSGI specification (PEP 3333) specifies that on Python 3 all strings passed by the server must be of type str with code points encodable using the ISO 8859-1 codec. For some reason, I introduced a bug in by applying the reverse change. Maybe I got confused because PEP 3333 says that arbitrary operating system environment variables may be contained in the WSGI environment and therefore we need to handle the WSGI environment variables like we would handle operating system environment variables. The bug mentioned in the previous paragraph and fixed by this changeset manifested e.g. in the path of the URL being encoded in the wrong way. Browsers encode non-ASCII bytes with the percent-encoding. WSGI servers will decode the percent-encoded bytes and pass them to the application as strings where each byte is mapped to the corresponding code point with the same ordinal (i.e. it is decoded using the ISO-8859-1 codec). Mercurial uses the bytes type for these strings (which makes much more sense), so we need to encode it again using the ISO-8859-1 codec. If we use another codec, it can result in nonsense.

Raphaël Gomès - - Load All Authors

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             exit_codes.rs
        
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                | application/rls-services+xml
            
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             / rust / hg-core / src / exit_codes.rs
          
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      pub type ExitCode = i32;

      /// Successful exit

      pub const OK: ExitCode = 0;

      /// Generic abort

      pub const ABORT: ExitCode = 255;

      // Abort when there is a config related error

      pub const CONFIG_ERROR_ABORT: ExitCode = 30;

      /// Indicates that the operation might work if retried in a different state.

      /// Examples: Unresolved merge conflicts, unfinished operations

      pub const STATE_ERROR: ExitCode = 20;

      // Abort when there is an error while parsing config

      pub const CONFIG_PARSE_ERROR_ABORT: ExitCode = 10;

      /// Generic something completed but did not succeed

      pub const UNSUCCESSFUL: ExitCode = 1;

      /// Command or feature not implemented by rhg

      pub const UNIMPLEMENTED: ExitCode = 252;

      /// The fallback path is not valid

      pub const INVALID_FALLBACK: ExitCode = 253;

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				pub type ExitCode = i32;

				/// Successful exit
				pub const OK: ExitCode = 0;

				/// Generic abort
				pub const ABORT: ExitCode = 255;

				// Abort when there is a config related error
				pub const CONFIG_ERROR_ABORT: ExitCode = 30;

				/// Indicates that the operation might work if retried in a different state.
				/// Examples: Unresolved merge conflicts, unfinished operations
				pub const STATE_ERROR: ExitCode = 20;

				// Abort when there is an error while parsing config
				pub const CONFIG_PARSE_ERROR_ABORT: ExitCode = 10;

				/// Generic something completed but did not succeed
				pub const UNSUCCESSFUL: ExitCode = 1;

				/// Command or feature not implemented by rhg
				pub const UNIMPLEMENTED: ExitCode = 252;

				/// The fallback path is not valid
				pub const INVALID_FALLBACK: ExitCode = 253;