Commit 9315aa4bb0b3f1d24c053538e7a674997d263570

Authored by Jay Berkenbilt
1 parent e1271361

TODO

Showing 1 changed file with 0 additions and 57 deletions
1   -Pending Doc Updates
2   -===================
3   -
4   -Unicode Passwords
5   -
6   -Release notes
7   -
8   -* Windows now interprets CLI arguments as Unicode. Explain the
9   - non-compatibility and how it is unavoidable.
10   -* Refer to the manual for the rest
11   -
12   -Regular manual
13   -
14   -* Explain the password modes, how they work, and when you would need
15   - to use other than auto (e.g. overriding automatic detection of
16   - UTF-8, forcibly creating a file with incorrect encoding for tests,
17   - etc.)
18   -* Explain limitations around BiDi and normalize
19   -* Explain that the features are CLI and that the library, for
20   - compatibility, still expects bytes. Refer to the transcoding methods.
21   - - Document that users should pass an appropriately encoded string:
22   - PDF Doc for R3 and R4, and UTF-8 for R5 and R6, and that they can
23   - use QUtil::utf8_to_pdf_doc to achieve this.
24   -* Talk about automatic password recovery and what it does.
25   -
26   -Possible text
27   -
28   - - password modes:
29   - - hex-bytes: hex-encoded bytes for password
30   - - bytes: take the bytes as they are
31   - - unicode: utf8-encoded, with notes about Windows doing this by default
32   - - auto: determine automatically
33   - - Note that --password-is-hex-key applies only to the main password
34   - and is only related to reading. It bypasses the password checks
35   - entirely and is not a password mode. The --password-mode option
36   - tells qpdf how to interpret the password used in writing.
37   - - Behavior of unicode: Fail if the password is not valid UTF-8.
38   - For R <= 4 fail if the password cannot be transcoded to PDFDoc
39   - without loss.
40   - - Behavior of auto: For R >= 5 fail if the password is not valid
41   - UTF-8 and tell the user about bytes. For R <= 4, if string is
42   - valid UTF-8 and is able to be successfully transcoded to PDFDoc,
43   - transcode it; otherwise fall back to bytes.
44   - - For bytes and hexbytes, just treat the passwords as given,
45   - documenting the change for Windows that incoming arguments are
46   - UTF-8 starting in 8.4.
47   - - Note that, for Windows, there is no guaranteed compatibility
48   - because of the switch to wmain. For Non-Windows, "bytes" gives
49   - backward compatibility, but "auto" will fix the bug of qpdf
50   - generating invalid passwords when accented characters were used.
51   - Take special note of @file password arguments, which are not
52   - converted automatically to Unicode on Windows like CLI args are.
53   -
54   - Don't bother with normalize and BiDi for Unicode as that requires
55   - something like ICU. If we ever do that, we can add additional flags
56   - and method calls.
57   -
58 1 Soon
59 2 ====
60 3  
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