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gallery-dl/docs/configuration.rst
Mike Fährmann 8f518e03f8
add options to set maximum download rate 
- -r/--limit-rate as cmdline option
- downloader.http.rate as config option

This implementation very roughly uses the idea of the token bucket
algorithm [1] and mostly uses Wget's approach [2] as inspiration.

[1] https://en.wikipedia.org/wiki/Token_bucket
[2] http://git.savannah.gnu.org/cgit/wget.git/tree/src/retr.c?h=v1.19.2&id=ba6b44f6745b14dce414761a8e4b35d31b176bba#n111
2017-12-02 01:47:26 +01:00

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Configuration
#############
Contents
========
1) `General Options`_
2) `Output Options`_
3) `Downloader Options`_
4) `Extractor Options`_
5) `Extractor-specific Options`_
6) `API Tokens & IDs`_
General Options
===============
base-directory
--------------
=========== =====
Type ``string``
Default ``"./gallery-dl/"``
Description Directory path used as the base for all download destinations.
=========== =====
netrc
-----
=========== =====
Type ``bool``
Default ``false``
Description Enable the use of |.netrc|_ authentication data.
=========== =====
cache.file
----------
=========== =====
Type ``string``
Default |tempfile.gettempdir()|_ + ``".gallery-dl.cache"``
Description Path of the SQLite3 database used to cache login sessions,
cookies and API tokens.
Set this value to an invalid path or simply ``null`` to disable
this cache.
=========== =====
Output Options
==============
output.mode
-----------
=========== =====
Type ``string``
Default ``"auto"``
Description Controls the output string format and status indicators.
* ``"null"``: No output
* ``"pipe"``: Suitable for piping to other processes or files
* ``"terminal"``: Suitable for the standard Windows console
* ``"color"``: Suitable for terminals that understand ANSI escape codes and colors
* ``"auto"``: Automatically choose the best suitable output mode
=========== =====
output.shorten
--------------
=========== =====
Type ``bool``
Default ``true``
Description Controls whether the output strings should be shortened to fit
on one console line.
=========== =====
output.progress
---------------
=========== =====
Type ``bool`` or ``string``
Default ``true``
Description Controls the progress indicator when *gallery-dl* is run with
multiple URLs as arguments.
* ``true``: Show the default progress indicator
(``"[{current}/{total}] {url}"``)
* ``false``: Do not show any progress indicator
* Any ``string``: Show the progress indicator using this
as a custom `format string`_. Possible replacement keys are
``current``, ``total`` and ``url``.
=========== =====
Downloader Options
==================
downloader.part
---------------
=========== =====
Type ``bool``
Default ``true``
Description Controls the use of ``.part`` files during file downloads.
* ``true``: Write downloaded data into ``.part`` files and rename
them upon download completion. This mode additionally supports
resuming incomplete downloads.
* ``false``: Do not use ``.part`` files and write data directly
into the actual output files.
=========== =====
downloader.part-directory
-------------------------
=========== =====
Type ``string``
Default ``null``
Description Alternate location for ``.part`` files.
Missing directories will be created as needed.
If this value is ``null``, ``.part`` files are going to be stored
alongside the actual output files.
=========== =====
downloader.http.rate
--------------------
=========== =====
Type ``string``
Default ``null``
Examples ``"32000"``, ``"500k"``, ``"2.5M"``
Description Maximum download rate in bytes per second.
Possible values are valid integer or floating-point numbers
optionally followed by one of ``k``, ``m``. ``g``, ``t`` or ``p``.
These suffixes are case-insensitive.
=========== =====
downloader.http.retries
-----------------------
=========== =====
Type ``integer``
Default ``5``
Description Number of times a failed download is retried before giving up.
=========== =====
downloader.http.timeout
-----------------------
=========== =====
Type ``float`` or ``null``
Default ``30``
Description Amount of time (in seconds) to wait for a successful connection
and response from a remote server.
This value gets internally used as the |timeout|_ parameter for the
|requests.request()|_ method during downloads.
=========== =====
downloader.http.verify
----------------------
=========== =====
Type ``bool`` or ``string``
Default ``true``
Description Controls whether to verify SSL/TLS certificates for HTTPS requests.
If this is a ``string``, it must be the path to a CA bundle to use
instead of the default certificates.
This value gets internally used as the |verify|_ parameter for the
|requests.request()|_ method during downloads.
=========== =====
Extractor Options
=================
Each extractor is identified by its ``category`` and ``subcategory``.
The ``category`` is the lowercase site name without any spaces or special
characters, which is usually just the module name
(``pixiv``, ``batoto``, ...).
The ``subcategory`` is a lowercase word describing the general functionality
of that extractor (``user``, ``favorite``, ``manga``, ...).
Each one of the following options can be specified on multiple levels of the
configuration tree:
================== =====
Base level: ``extractor.<option-name>``
Category level: ``extractor.<category>.<option-name>``
Subcategory level: ``extractor.<category>.<subcategory>.<option-name>``
================== =====
A value in a "deeper" level hereby overrides a value of the same name on a
lower level. Setting the ``extractor.pixiv.filename`` value, for example, lets
you specify a general filename pattern for all the different pixiv extractors.
Using the ``extractor.pixiv.user.filename`` value lets you override this
general pattern specifically for ``PixivUserExtractor`` instances.
The ``category`` and ``subcategory`` of all extractors are included in the
output of ``gallery-dl --list-extractors``. For a specific URL these values
can also be determined by using the ``-K``/``--list-keywords`` command-line
option (see the example below).
extractor.*.filename
--------------------
=========== =====
Type ``string``
Example ``"{manga}_c{chapter}_{page:>03}.{extension}"``
Description A `format string`_ to build the resulting filename
for a downloaded file.
The available replacement keys depend on the extractor used. A list
of keys for a specific one can be acquired by calling *gallery-dl*
with the ``-K``/``--list-keywords`` command-line option.
For example:
.. code::
$ gallery-dl -K http://seiga.nicovideo.jp/seiga/im5977527
Keywords for directory names:
-----------------------------
category
seiga
subcategory
image
Keywords for filenames:
-----------------------
category
seiga
extension
None
image-id
5977527
subcategory
image
Note that even if the value of the ``extension`` key is missing or
``None``, it will filled in later when the file download is
starting. This key is therefore always available to provide
a valid filename extension.
=========== =====
extractor.*.directory
---------------------
=========== =====
Type ``list`` of ``strings``
Example ``["{category}", "{manga}", "c{chapter} - {title}"]``
Description A list of `format strings`_ for the resulting target directory.
Each individual string in such a list represents a single path
segment, which will be joined together and prepended with the
base-directory_ to form the complete target directory path.
=========== =====
extractor.*.skip
----------------
=========== =====
Type ``bool`` or ``string``
Default ``true``
Description Controls the behavior when downloading a file whose filename
already exists.
* ``true``: Skip the download
* ``false``: Overwrite the already existing file
* ``"abort"``: Abort the current extractor run
* ``"exit"``: Exit the program altogether
=========== =====
extractor.*.username & .password
--------------------------------
=========== =====
Type ``string``
Default ``null``
Description The username and password to use when attempting to log in to
another site.
Specifying username and password is
required for the ``pixiv``, ``nijie`` and ``seiga`` modules and
optional (but strongly recommended) for ``batoto``, ``exhentai``
and ``sankaku``.
These values can also be set via the ``-u/--username`` and
``-p/--password`` command-line options or by using a |.netrc|_ file.
(see Authentication_)
=========== =====
extractor.*.cookies
-------------------
=========== =====
Type ``string`` or ``object``
Default ``null``
Description Source to read additional cookies from.
* If this is a ``string``, it specifies the path of a
Mozilla/Netscape format cookies.txt file.
* If this is an ``object``, its key-value pairs, which should both
be ``strings``, will be used as cookie-names and -values.
=========== =====
extractor.*.user-agent
----------------------
=========== =====
Type ``string``
Default ``"Mozilla/5.0 (X11; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0"``
Description User-Agent header value to be used for HTTP requests.
Note that this option has no effect on `pixiv` and
`readcomiconline` extractors, as these need specific values to
function correctly.
=========== =====
Extractor-specific Options
==========================
extractor.deviantart.flat
-------------------------
=========== =====
Type ``bool``
Default ``true``
Description Select the directory structure created by the Gallery- and
Favorite-Extractors.
* ``true``: Use a flat directory structure.
* ``false``: Collect a list of all gallery-folders or
favorites-collections and transfer any further work to other
extractors (``folder`` or ``collection``), which will then
create individual subdirectories for each of them.
=========== =====
extractor.deviantart.mature
---------------------------
=========== =====
Type ``bool``
Default ``true``
Description Enable mature content.
This option simply sets the |mature_content|_ parameter for API
calls to either ``"true"`` or ``"false"`` and does not do any other
form of content filtering.
=========== =====
extractor.deviantart.original
-----------------------------
=========== =====
Type ``bool``
Default ``true``
Description Request full-sized original images if available.
Some of DeviantArt's images require an additional API call to get
their actual original version, which is being hosted on
Amazon Web Services (AWS) servers.
=========== =====
extractor.exhentai.original
---------------------------
=========== =====
Type ``bool``
Default ``true``
Description | Always download the original image or
| download the down-sampled version of larger images.
=========== =====
extractor.exhentai.wait-min & .wait-max
---------------------------------------
=========== =====
Type ``float``
Default ``3.0`` and ``6.0``
Description Minimum and maximum wait time in seconds between each image
ExHentai detects and blocks automated downloaders.
*gallery-dl* waits a randomly selected number of
seconds between ``wait-min`` and ``wait-max`` after
each image to prevent getting blocked.
=========== =====
extractor.flickr.access-token & .access-token-secret
----------------------------------------------------
=========== =====
Type ``string``
Default ``null``
Description The ``access_token`` and ``access_token_secret`` values you get
from linking your Flickr account to *gallery-dl*.
=========== =====
extractor.flickr.metadata
-------------------------
=========== =====
Type ``bool``
Default ``false``
Description Load additional metadata when using the single-image extractor.
=========== =====
extractor.flickr.size-max
--------------------------
=========== =====
Type ``integer`` or ``string``
Default ``null``
Description Sets the maximum allowed size for downloaded images.
* If this is an ``integer``, it specifies the maximum image dimension
(width and height) in pixels.
* If this is a ``string``, it should be one of Flickr's format specifiers
(``"Original"``, ``"Large"``, ... or ``"o"``, ``"k"``, ``"h"``,
``"l"``, ...) to use as an upper limit.
=========== =====
extractor.gfycat.format
-----------------------
=========== =====
Type ``string``
Default ``"mp4"``
Description The name of the preferred animation format, which can be one of
``"mp4"``, ``"webm"``, ``"gif"``, ``"webp"`` or ``"mjpg"``.
If the selected format is not available, ``"mp4"``, ``"webm"``
and ``"gif"`` (in that order) will be tried instead, until an
available format is found.
=========== =====
extractor.imgur.mp4
-------------------
=========== =====
Type ``bool`` or ``string``
Default ``true``
Description Controls whether to choose the GIF or MP4 version of an animation.
* ``true``: Follow Imgur's advice and choose MP4 if the
``prefer_video`` flag in an image's metadata is set.
* ``false``: Always choose GIF.
* ``"always"``: Always choose MP4.
=========== =====
extractor.oauth.browser
-----------------------
=========== =====
Type ``bool``
Default ``true``
Description Controls how a user is directed to an OAuth authorization site.
* ``true``: Use Python's |webbrowser.open()|_ method to automatically
open the URL in the user's browser.
* ``false``: Ask the user to copy & paste an URL from the terminal.
=========== =====
extractor.pixiv.ugoira
----------------------
=========== =====
Type ``bool``
Default ``true``
Description Download Pixiv's Ugoira animations or ignore them.
These animations come as a ``.zip`` file containing all the single
animation frames in JPEG format.
=========== =====
extractor.recursive.blacklist
-----------------------------
=========== =====
Type ``list`` of ``strings``
Default ``["directlink", "oauth", "recursive", "test"]``
Description A list of extractor categories which should be ignored when using
the ``recursive`` extractor.
=========== =====
extractor.reddit.comments
-------------------------
=========== =====
Type ``integer`` or ``string``
Default ``200``
Description The value of the ``limit`` parameter when loading
a submission and its comments.
This number (roughly) specifies the total amount of comments
being retrieved with the first API call.
Reddit's internal default and maximum values for this parameter
appear to be 200 and 500 respectively.
The value `0` ignores all comments and significantly reduces to time
required when scanning a subreddit.
=========== =====
extractor.reddit.morecomments
-----------------------------
=========== =====
Type ``bool``
Default ``false``
Description Retrieve additional comments by resolving the ``more`` comment
stubs in the base comment tree.
This requires 1 additional API call for every 100 extra comments.
=========== =====
extractor.reddit.date-min & .date-max
-------------------------------------
=========== =====
Type ``integer`` or ``string``
Default ``0`` and ``253402210800`` (timestamp of |datetime.max|_)
Description Ignore all submissions posted before/after this date.
* If this is an ``integer``, it represents the date as UTC timestamp.
* If this is a ``string``, it will get parsed according to date-format_.
=========== =====
extractor.reddit.date-format
----------------------------
=========== =====
Type ``string``
Default ``"%Y-%m-%dT%H:%M:%S"``
Description An explicit format string used to parse the ``string`` values of
`date-min and date-max`_.
See |strptime|_ for a list of formatting directives.
=========== =====
extractor.reddit.id-min & .id-max
---------------------------------
=========== =====
Type ``string``
Example ``"6kmzv2"``
Description Ignore all submissions posted before/after the submission with
this ID.
=========== =====
extractor.reddit.recursion
--------------------------
=========== =====
Type ``integer``
Default ``0``
Description Reddit extractors can recursively visit other submissions
linked to in the initial set of submissions.
This value sets the maximum recursion depth.
Special values:
* ``0``: Recursion is disabled
* ``-1``: Infinite recursion (don't do this)
=========== =====
extractor.reddit.refresh-token
------------------------------
=========== =====
Type ``string``
Default ``null``
Description The ``refresh_token`` value you get from linking your Reddit account
to *gallery-dl*.
Using the ``refresh_token`` allows you to access private or otherwise
not publicly available subreddits, given that your account is
authorized to do so,
but requests to the reddit API are going to be rate limited
at 600 requests every 10 minutes/600 seconds.
=========== =====
extractor.sankaku.wait-min & .wait-max
--------------------------------------
=========== =====
Type ``float``
Default ``2.0`` and ``4.0``
Description Minimum and maximum wait time in seconds between each image
Sankaku Channel responds with ``429 Too Many Requests`` if it
receives too many HTTP requests in a certain amount of time.
Waiting a few seconds between each request tries to prevent that.
=========== =====
extractor.tumblr.external
-------------------------
=========== =====
Type ``bool``
Default ``false``
Description Follow external URLs (e.g. from "Link" posts) and try to extract
images from them.
=========== =====
extractor.tumblr.inline
-----------------------
=========== =====
Type ``bool``
Default ``false``
Description Search posts for inline images.
=========== =====
extractor.tumblr.posts
----------------------
=========== =====
Type ``string``
Default ``"photo"``
Description A comma-separated list of post types to extract images, etc. from.
For example: ``"text,link,photo"``.
Possible types are ``text``, ``quote``, ``link``, ``answer``,
``video``, ``audio``, ``photo``, ``chat``.
You can use ``"all"`` instead of listing all types separately.
=========== =====
API Tokens & IDs
================
All configuration keys listed in this section have fully functional default
values embedded into *gallery-dl* itself, but if things unexpectedly break
or you want to use your own personal client credentials, you can follow these
instructions to get an alternative set of API tokens and IDs.
extractor.deviantart.client-id & .client-secret
-----------------------------------------------
=========== =====
Type ``string``
How To - login and visit DeviantArt's `Applications & Keys`_ section
- click "Register your Application"
- click "Save" (top right; default settings are fine)
- copy ``client_id`` and ``client_secret`` of your new "Untitled"
application and put them in your configuration file
=========== =====
extractor.flickr.api-key & .api-secret
--------------------------------------
=========== =====
Type ``string``
How To - login and `Create an App`_ in Flickr's `App Garden`_
- click "APPLY FOR A NON-COMMERCIAL KEY"
- fill out the form with a random name and description
and click "SUBMIT"
- copy ``Key`` and ``Secret`` and put them in your configuration
file
=========== =====
extractor.pawoo.access-token
----------------------------
=========== =====
Type ``string``
How To
=========== =====
extractor.pinterest.access-token
--------------------------------
=========== =====
Type ``string``
How To
=========== =====
extractor.reddit.client-id & .user-agent
----------------------------------------
=========== =====
Type ``string``
How To - login and visit the apps_ section of your account's preferences
- click the "are you a developer? create an app..." button
- fill out the form, choose "installed app", preferably set
"http://localhost:6414/" as "redirect uri" and finally click
"create app"
- copy the client id (third line, under your application's name and
"installed app") and put it in your configuration file
- use "``Python:<application name>:v1.0 (by /u/<username>)``" as
user-agent and replace ``<application name>`` and ``<username>``
accordingly (see Reddit's `API access rules`_)
=========== =====
extractor.tumblr.api-key
------------------------
=========== =====
Type ``string``
How To - login and visit Tumblr's Applications_ section
- click "Register application"
- fill out the form: use a random name and description, set
https://example.org/ as "Application Website" and "Default
callback URL"
- solve Google's "I'm not a robot" challenge and click "Register"
- copy your ``OAuth Consumer Key`` and put it in your configuration
file
=========== =====
.. |.netrc| replace:: ``.netrc``
.. |tempfile.gettempdir()| replace:: ``tempfile.gettempdir()``
.. |requests.request()| replace:: ``requests.request()``
.. |timeout| replace:: ``timeout``
.. |verify| replace:: ``verify``
.. |mature_content| replace:: ``mature_content``
.. |webbrowser.open()| replace:: ``webbrowser.open()``
.. |datetime.max| replace:: ``datetime.max``
.. |strptime| replace:: strftime() and strptime() Behavior
.. _`date-min and date-max`: `extractor.reddit.date-min & .date-max`_
.. _date-format: extractor.reddit.date-format_
.. _.netrc: https://stackoverflow.com/tags/.netrc/info
.. _tempfile.gettempdir(): https://docs.python.org/3/library/tempfile.html#tempfile.gettempdir
.. _requests.request(): https://docs.python-requests.org/en/master/api/#requests.request
.. _timeout: https://docs.python-requests.org/en/latest/user/advanced/#timeouts
.. _verify: https://docs.python-requests.org/en/master/user/advanced/#ssl-cert-verification
.. _format string: https://docs.python.org/3/library/string.html#formatstrings
.. _format strings: https://docs.python.org/3/library/string.html#formatstrings
.. _strptime: https://docs.python.org/3/library/datetime.html#strftime-strptime-behavior
.. _mature_content: https://www.deviantart.com/developers/http/v1/20160316/object/deviation
.. _webbrowser.open(): https://docs.python.org/3/library/webbrowser.html
.. _datetime.max: https://docs.python.org/3/library/datetime.html#datetime.datetime.max
.. _Authentication: https://github.com/mikf/gallery-dl#5authentication
.. _`Applications & Keys`: https://www.deviantart.com/developers/apps
.. _`Create an App`: https://www.flickr.com/services/apps/create/apply/
.. _`App Garden`: https://www.flickr.com/services/
.. _apps: https://www.reddit.com/prefs/apps/
.. _`API access rules`: https://github.com/reddit/reddit/wiki/API
.. _Applications: https://www.tumblr.com/oauth/apps
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