Made the viewer respect the `--blockexternal` and `--nolibrarybutton`
options of `kiwix-serve`. Those options are passed to the viewer
via the dynamically generated resource `/viewer_settings.js`.
The next goal is to redirect old-style /book/path/to/entry URLs to
/content/book/path/to/entry, which seemed pretty trivial.
However, given the current handling of some endpoint URLs, more work was
required to ensure that invalid endpoint URLs (e.g. "/random/number" or
"/suggest/fr") are not interpreted as content URLs. Previously, that was
not a user-observable issue, since the result would be an immediate 404
error (except in certain edge cases, like handling the request for
"/random/number" when there is a book with name "random" containing an
article at path "/number"). With redirection of URLs that were assumed
to refer to content a 404 error would be issued for the
transformed URL ("/content/random/number") which may be confusing.
Therefore this change is to ensure the correct routing of endpoint URL
handling.
During work on the kiwix-serve front-end, the edit-save-test cycle is
a multistep procedure:
1. build and install libkiwix
2. build kiwix-tools
3. run kiwix-serve
4. reload the web-page in the browser
When making changes in static resources that are served by kiwix-serve
unmodified, the steps 1-3 can be eliminated if kiwix-serve is capable of
serving resources from the file-system. This commit adds such a
functionality to kiwix-serve. Now, if during startup of kiwix-serve the
environment variable `KIWIX_SERVE_CUSTOMIZED_RESOURCES` is defined it is
assumed to point to a file where every line has the following format:
URL MIMETYPE RESOURCE_FILE_PATH
When a request is received by kiwix-serve and its URL matches any of the
URLs read from the customized resource file, then the resource data is
read from the respective file RESOURCE_FILE_PATH and served with
mime-type MIMETYPE.
Though this feature was introduced in order to facilitate the
development of the iframe-based content viewer, it can also be useful to
users who would like to customize the kiwix-serve front-end on their own
(without re-building all of kiwix-serve).
There is some overlap with a feature of the kiwix-compile-resources
script that also allows to override resources. The differences are:
1. The new way of customizing front-end resources has all such resources
listed in a text file and there is a single environment variable
from which the path of that file is read. kiwix-compile-resources
associates a separate environment variable with each resource.
2. The new way uses regular paths to identify a resource. The
kiwix-compile-resources method encodes the resource path by replacing
any non-alphanumeric characters (including the path separator) with
underscores (so that the resulting resource identifier can be used
to construct the name of the environment variable controlling that
resource).
3. The new method allows adding new front-end resources. The old method
only allows to modify existing resources.
4. The new method allows (actually requires) to specify the URL at which
the overriden resource should be served (similarly, the MIME-type can/must
be specified, too). The old method only allows to override the contents of
a resource.
5. The new method only allows to override front-end resources that are
served without any preprocessing by kiwix-serve at runtime. The old
method allows to override template resources as well (note that
internationalization/translation resources cannot be overriden using the
old method, either).
We have to reuse the query the user give us to generate the
pagination links.
At search result rendering step we don't have access to the query object.
The best place to know which arguments are used to select books
(and so which arguments to keep in the pagination links) is when we
parse the query to select books.
Fix tests (pagination links) with book selector other than "books.id="
(pattern=jazz&books.query.lang=eng)
SearchInfo is a small helper structure to store information about the
queried search. It regroup already existing information (`patternString`,
geo query, ...) in one structure.
It is also used as key in the cache instead of using a generated string.
We create a cache for SuggestionSearcher very similar to that of FT
searcher. User can specify a custom cache size using the environment
variable SUGGESTION_SEARCHER_CACHE_SIZE. It has a default value of 10%
of the number of books in the library.
We use the new cache template to implement two kind of cache.
1: The Searcher cache is more general in terms of its usage. A Searcher
can be used for multiple searches without much change to itself. We
try to retrieve the searcher and perform searches using it whenever
possible, and if not we put a searcher into the cache. User can
specify a custom cache length by manipulating the environment
variable SEARCHER_CACHE_SIZE. It's default value is 10% of all the
books available.
2: The search cache is much more restricted in terms of usage. It's main
purpose is to avoid re-searching on the searcher during page changes
to generate SearchResultSet of various ranges. User can specify a
custom cache length using the environment variable SEARCH_CACHE_SIZE
with a default value of 2;
As the name suggests it, this endpoint is not smart :
It returns the content as it is and only if it is present
(no compatibility or whatever).
The only "smart" thing is to return a redirect if the entry is a redirect.
/catalog/v2/entries is intended to play the combined role of
/catalog/root.xml and /catalog/search of the old OPDS API. Currently,
the latter role is not yet implemented.
Implementation note: instead of tweaking and reusing
`OPDSDumper::dumpOPDSFeed()`, the generation of the OPDS feed is done via `mustache`
and a new template `static/catalog_v2_entries.xml`.
Note: This commit somewhat relaxes validation of non variable
`<updated>` elements in the OPDS feed - the contents of any `<updated>`
element is replaced with the YYYY-MM-DDThh:mm:ssZ placeholder.
This is only an "interface" for now as other type of response (entry) may
be "transformed" to a ContentResponse.
We cannot move all the code in the class.
Veloman Yunkan
Matthieu Gautier
Maneesh P M
Nikhil Tanwar
Manan Jethwani
Manan Jethwani