| 1 | Hey Emacs, this is -*- outline -*- mode
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| 2 |
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| 3 | This is the to-do list for GNU Wget. There is no timetable of when we
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| 4 | plan to implement these features -- this is just a list of features
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| 5 | we'd like to see in Wget, as well as a list of problems that need
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| 6 | fixing. Patches to implement these items are likely to be accepted,
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| 7 | especially if they follow the coding convention outlined in PATCHES
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| 8 | and if they patch the documentation as well.
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| 9 |
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| 10 | The items are not listed in any particular order (except that
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| 11 | recently-added items may tend towards the top). Not all of these
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| 12 | represent user-visible changes.
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| 13 |
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| 14 | * Honor `Content-Disposition: XXX; filename="FILE"' when creating the
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| 15 | file name. If possible, try not to break `-nc' and friends when
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| 16 | doing that.
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| 17 |
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| 18 | * Wget shouldn't delete rejected files that were not downloaded, but
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| 19 | just found on disk because of `-nc'. For example, `wget -r -nc
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| 20 | -A.gif URL' should allow the user to get all the GIFs without
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| 21 | removing any of the existing HTML files.
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| 22 |
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| 23 | * Be careful not to lose username/password information given for the
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| 24 | URL on the command line.
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| 25 |
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| 26 | * Add a --range parameter allowing you to explicitly specify a range
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| 27 | of bytes to get from a file over HTTP (FTP only supports ranges
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| 28 | ending at the end of the file, though forcibly disconnecting from
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| 29 | the server at the desired endpoint might be workable).
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| 30 |
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| 31 | * If multiple FTP URLs are specified that are on the same host, Wget should
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| 32 | re-use the connection rather than opening a new one for each file.
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| 33 |
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| 34 | * Try to devise a scheme so that, when password is unknown, Wget asks
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| 35 | the user for one.
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| 36 |
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| 37 | * If -c used with -N, check to make sure a file hasn't changed on the server
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| 38 | before "continuing" to download it (preventing a bogus hybrid file).
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| 39 |
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| 40 | * Generalize --html-extension to something like --mime-extensions and
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| 41 | have it look at mime.types/mimecap file for preferred extension.
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| 42 | Non-HTML files with filenames changed this way would be
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| 43 | re-downloaded each time despite -N unless .orig files were saved for
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| 44 | them. Since .orig would contain the same data as non-.orig, the
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| 45 | latter could be just a link to the former. Another possibility
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| 46 | would be to implement a per-directory database called something like
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| 47 | .wget_url_mapping containing URLs and their corresponding filenames.
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| 48 |
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| 49 | * When spanning hosts, there's no way to say that you are only interested in
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| 50 | files in a certain directory on _one_ of the hosts (-I and -X apply to all).
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| 51 | Perhaps -I and -X should take an optional hostname before the directory?
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| 52 |
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| 53 | * --retr-symlinks should cause wget to traverse links to directories too.
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| 54 |
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| 55 | * Make wget return non-zero status in more situations, like incorrect HTTP auth.
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| 56 |
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| 57 | * Make -K compare X.orig to X and move the former on top of the latter if
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| 58 | they're the same, rather than leaving identical .orig files laying around.
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| 59 |
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| 60 | * Make `-k' check for files that were downloaded in the past and convert links
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| 61 | to them in newly-downloaded documents.
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| 62 |
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| 63 | * Add option to clobber existing file names (no `.N' suffixes).
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| 64 |
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| 65 | * Add option to only list wildcard matches without doing the download.
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| 66 |
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| 67 | * Handle MIME types correctly. There should be an option to (not)
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| 68 | retrieve files based on MIME types, e.g. `--accept-types=image/*'.
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| 69 |
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| 70 | * Allow time-stamping by arbitrary date.
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| 71 |
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| 72 | * Allow size limit to files (perhaps with an option to download oversize files
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| 73 | up through the limit or not at all, to get more functionality than [u]limit.
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| 74 |
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| 75 | * Download to .in* when mirroring.
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| 76 |
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| 77 | * Add an option to delete or move no-longer-existent files when mirroring.
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| 78 |
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| 79 | * Implement uploading (--upload URL?) in FTP and HTTP.
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| 80 |
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| 81 | * Rewrite FTP code to allow for easy addition of new commands. It
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| 82 | should probably be coded as a simple DFA engine.
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| 83 |
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| 84 | * Make HTTP timestamping use If-Modified-Since facility.
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| 85 |
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| 86 | * Add more protocols (e.g. gopher and news), implementing them in a
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| 87 | modular fashion.
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| 88 |
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| 89 | * Add a "rollback" option to have continued retrieval throw away a
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| 90 | configurable number of bytes at the end of a file before resuming
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| 91 | download. Apparently, some stupid proxies insert a "transfer
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| 92 | interrupted" string we need to get rid of.
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