make checkcontent compatible with hooks that need the full content

[git.ikiwiki.info.git] / doc / plugins / po.mdwn

diff --git a/doc/plugins/po.mdwn b/doc/plugins/po.mdwn
index 6d468f07efb16fdde46a5a51a3402ac11533f3ee..7165015ab5f8ba201090cfeb73ddfb0b9ba9132a 100644 (file)
--- a/doc/plugins/po.mdwn
+++ b/doc/plugins/po.mdwn
@@ -6,6 +6,8 @@ gettext, using [po4a](http://po4a.alioth.debian.org/).
 
 It depends on the Perl `Locale::Po4a::Po` library (`apt-get install po4a`).
 
 
 It depends on the Perl `Locale::Po4a::Po` library (`apt-get install po4a`).
 

+[[!toc levels=2]]
+

 Introduction
 ============
 
 Introduction
 ============
 


@@ -29,6 +31,12 @@ Example: `bla/page.fr.po` is the PO "message catalog" used to
 translate `bla/page.mdwn` into French; if `usedirs` is enabled, it is
 rendered as `bla/page/index.fr.html`, else as `bla/page.fr.html`
 
 translate `bla/page.mdwn` into French; if `usedirs` is enabled, it is
 rendered as `bla/page/index.fr.html`, else as `bla/page.fr.html`
 

+(In)Compatibility
+=================
+
+This plugin does not support the `indexpages` mode. If you don't know
+what it is, you probably don't care.
+

 
 Configuration
 =============
 
 Configuration
 =============


@@ -78,8 +86,8 @@ If `po_link_to` is set to `current`, `\[[destpage]]` links to the
 `destpage`'s version written in the current page's language, if
 available, *i.e.*:
 
 `destpage`'s version written in the current page's language, if
 available, *i.e.*:
 

-- `foo/destpage/index.LL.html` if `usedirs` is enabled
-- `foo/destpage.LL.html` if `usedirs` is disabled
+* `foo/destpage/index.LL.html` if `usedirs` is enabled
+* `foo/destpage.LL.html` if `usedirs` is disabled

 
 ### Link to negotiated language
 
 
 ### Link to negotiated language
 


@@ -88,10 +96,10 @@ negotiated preferred language, *i.e.* `foo/page/`.
 
 (In)compatibility notes:
 
 
 (In)compatibility notes:
 

-- if `usedirs` is disabled, it does not make sense to set `po_link_to`
+* if `usedirs` is disabled, it does not make sense to set `po_link_to`

   to `negotiated`; this option combination is neither implemented
   nor allowed.
   to `negotiated`; this option combination is neither implemented
   nor allowed.

-- if the web server does not support Content Negotiation, setting
+* if the web server does not support Content Negotiation, setting

   `po_link_to` to `negotiated` will produce a unusable website.
 
 
   `po_link_to` to `negotiated` will produce a unusable website.
 
 


@@ -127,6 +135,10 @@ Usage
 Templates
 ---------
 
 Templates
 ---------
 

+When `po_link_to` is not set to `negotiated`, one should replace some
+occurrences of `BASEURL` with `HOMEPAGEURL` to get correct links to
+the wiki homepage.
+

 The `ISTRANSLATION` and `ISTRANSLATABLE` variables can be used to
 display things only on translatable or translation pages.
 
 The `ISTRANSLATION` and `ISTRANSLATABLE` variables can be used to
 display things only on translatable or translation pages.
 


@@ -154,11 +166,11 @@ One typically adds the following code to `templates/page.tmpl`:
 
 The following variables are available inside the loop (for every page in):
 
 
 The following variables are available inside the loop (for every page in):
 

-- `URL` - url to the page
-- `CODE` - two-letters language code
-- `LANGUAGE` - language name (as defined in `po_slave_languages`)
-- `MASTER` - is true (1) if, and only if the page is a "master" page
-- `PERCENT` - for "slave" pages, is set to the translation completeness, in percents
+* `URL` - url to the page
+* `CODE` - two-letters language code
+* `LANGUAGE` - language name (as defined in `po_slave_languages`)
+* `MASTER` - is true (1) if, and only if the page is a "master" page
+* `PERCENT` - for "slave" pages, is set to the translation completeness, in percents

 
 ### Display the current translation status
 
 
 ### Display the current translation status
 


@@ -184,128 +196,113 @@ Automatic PO file update
 
 Committing changes to a "master" page:
 
 
 Committing changes to a "master" page:
 

-1. updates the POT file and the PO files for the supported languages;
-   the updated PO files are then put under version control
-2. triggers a refresh of the corresponding HTML slave pages
+1. updates the POT file and the PO files for the "slave" languages;
+   the updated PO files are then put under version control;
+2. triggers a refresh of the corresponding HTML slave pages.

 
 Also, when the plugin has just been enabled, or when a page has just
 been declared as being translatable, the needed POT and PO files are
 created, and the PO files are checked into version control.
 
 
 Also, when the plugin has just been enabled, or when a page has just
 been declared as being translatable, the needed POT and PO files are
 created, and the PO files are checked into version control.
 

-Discussion pages
-----------------
+Discussion pages and other sub-pages
+------------------------------------
+
+Discussion should happen in the language in which the pages are
+written for real, *i.e.* the "master" one. If discussion pages are
+enabled, "slave" pages therefore link to the "master" page's
+discussion page.

 
 

-Discussion should happen in the language in which the pages are written for
-real, *i.e.* the "master" one. If discussion pages are enabled, "slave" pages
-therefore link to the "master" page's discussion page.
+Likewise, "slave" pages are not supposed to have sub-pages;
+[[WikiLinks|wikilink]] that appear on a "slave" page therefore link to
+the master page's sub-pages.

 
 Translating
 -----------
 
 
 Translating
 -----------
 

-One can edit the PO files using ikiwiki's CGI (a message-by-message interface
-could also be implemented at some point).
+One can edit the PO files using ikiwiki's CGI (a message-by-message
+interface could also be implemented at some point).

 
 If [[tips/untrusted_git_push]] is setup, one can edit the PO files in one's
 preferred `$EDITOR`, without needing to be online.
 
 
 If [[tips/untrusted_git_push]] is setup, one can edit the PO files in one's
 preferred `$EDITOR`, without needing to be online.
 

-TODO
-====
-
-OTHERLANGUAGES dependencies
----------------------------
-
-Pages using `OTHERLANGUAGES` depend on any "master" and "slave" pages
-whose status is being displayed. It is supposed to trigger dependency
-loops, but no practical bugs were noticed yet.
-
-Should pages using the `OTHERLANGUAGES` template loop be declared as
-linking to the same page in other versions? To be rigorous, they
-should, but this may clutter the backlinks.
-
-Security checks
----------------
+Markup languages support
+------------------------

 
 

-- `refreshpofiles` uses `system()`, whose args have to be checked more
-  thoroughly to prevent any security issue (command injection, etc.).
-  > Always pass `system()` a list of parameters to avoid the shell.
-  > I've checked in a change fixing that. --[[Joey]]
-- `refreshpofiles` and `refreshpot` create new files; this may need
-  some checks, e.g. using `IkiWiki::prep_writefile()`
-  > Yes, it would be ideal to call `prep_writefile` on each file 
-  > that they write, beforehand. This way you'd avoid symlink attacks etc to the
-  > generated po/pot files. I haven't done it, but it seems pretty trivial.
-  > --[[Joey]]
-- Can any sort of directives be put in po files that will
-  cause mischief (ie, include other files, run commands, crash gettext,
-  whatever).
-- Any security issues on running po4a on untrusted content?
+Markdown is well supported. Some other markup languages supported by
+ikiwiki mostly work, but some pieces of syntax are not rendered
+correctly on the slave pages:

 
 

-gettext/po4a rough corners
---------------------------
+* [[reStructuredText|rst]]: anonymous hyperlinks and internal
+  cross-references
+* [[wikitext]]: conversion of newlines to paragraphs
+* [[creole]]: verbatim text is wrapped, tables are broken
+* [[html]] and LaTeX: not supported yet; the dedicated po4a modules
+  could be used to support them, but they would need a security audit
+* other markup languages have not been tested.

 
 

-- fix infinite loop when synchronizing two ikiwiki (when checkouts
-  live in different directories): say bla.fr.po has been updated in
-  repo2; pulling repo2 from repo1 seems to trigger a PO update, that
-  changes bla.fr.po in repo1; then pushing repo1 to repo2 triggers
-  a PO update, that changes bla.fr.po in repo2; etc.; fixed in
-  `629968fc89bced6727981c0a1138072631751fee`?
-- new translations created in the web interface must get proper charset/encoding
-  gettext metadata, else the next automatic PO update removes any non-ascii
-  chars; possible solution: put such metadata into the Pot file, and let it
-  propagate; should be fixed in `773de05a7a1ee68d2bed173367cf5e716884945a`, time
-  will tell.
+Security
+========

 
 

-Misc. improvements
-------------------
+[[./security]] contains a detailed security analysis of this plugin
+and its dependencies.

 
 

-### preview
+When using po4a older than 0.35, it is recommended to uninstall
+`Text::WrapI18N` (Debian package `libtext-wrapi18n-perl`), in order to
+avoid a potential denial of service.

 
 

-preview does not work for PO files.
+TODO
+====

 
 

-### automatic POT/PO update
+Better links
+------------

 
 

-Use the `change` hook instead of `needsbuild`?
+### Page title in links

 
 

-### page titles
+Using the fix to
+[[bugs/pagetitle_function_does_not_respect_meta_titles]] from
+[[intrigeri]]'s `meta` branch, the generated links' text is based on
+the page titles set with the [[meta|plugins/meta]] plugin. This has to
+be merged into ikiwiki upstream, though.

 
 

-Use nice page titles from meta plugin in links, as inline already does. This is
-actually a duplicate for
-[[bugs/pagetitle_function_does_not_respect_meta_titles]], which might be fixed
-by something like [[todo/using_meta_titles_for_parentlinks]].
+Robustness tests
+----------------

 
 

-### websetup
+### Enabling/disabling the plugin

 
 

-Which configuration settings are safe enough for websetup?
+* enabling the plugin with `po_translatable_pages` set to blacklist: **OK**
+* enabling the plugin with `po_translatable_pages` set to whitelist: **OK**
+* enabling the plugin without `po_translatable_pages` set: **OK**
+* disabling the plugin: **OK**

 
 

-> I see no problems with `po_master_language` and `po_slave_languages`
-> (assuming websetup handles the hashes correctly). Would not hurt to check
-> that the values of these are legal language codes, in `checkconfig`. 
-> `po_translatable_pages` seems entirely safe. `po_link_to` w/o usedirs
-> causes ikiwiki to error out. If it were changed to fall back to a safe
-> setting in this case rather than error, it would be safe.
-> --[[Joey]]
+### Changing the plugin config

 
 

-### parentlinks
+* adding existing pages to `po_translatable_pages`: **OK**
+* removing existing pages from `po_translatable_pages`: **OK**
+* adding a language to `po_slave_languages`: **OK**
+* removing a language from `po_slave_languages`: **OK**
+* changing `po_master_language`: **OK**
+* replacing `po_master_language` with a language previously part of
+  `po_slave_languages`: needs two rebuilds, but **OK** (this is quite
+  a perverse test actually)

 
 

-When the wiki home page is translatable, the parentlinks plugin sets
-`./index.html` as its translations' single parent link. Ideally, the home page's
-translations should get no parent link at all, just like the version written in
-the master language.
+### Creating/deleting/renaming pages

 
 

-### backlinks
+All cases of master/slave page creation/deletion/rename, both via RCS
+and via CGI, have been tested.

 
 

-If a given translatable `sourcepage.mdwn` links to \[[destpage]],
-`sourcepage.LL.po` also link to \[[destpage]], and the latter has the master
-page *and* all its translations listed in the backlinks.
+### Misc

 
 

-Translation quality assurance
------------------------------
+* general test with `usedirs` disabled: **OK**
+* general test with `indexpages` enabled: **not OK**
+* general test with `po_link_to=default` with `userdirs` enabled: **OK**
+* general test with `po_link_to=default` with `userdirs` disabled: **OK**

 
 

-Modifying a PO file via the CGI must be forbidden if the new version
-is not a valid PO file. As a bonus, check that it provides a more
-complete translation than the existing one.
+Misc. bugs
+----------

 
 

-A new `cansave` type of hook would be needed to implement this.
+Documentation
+-------------

 
 

-Note: committing to the underlying repository is a way to bypass
-this check.
+Maybe write separate documentation depending on the people it targets:
+translators, wiki administrators, hackers. This plugin may be complex
+enough to deserve this.