X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/832d4d31d177d5d5f848250496048a00e9d70e2f..f78357348a028fe97037429f4712d511d2921b14:/doc/plugins/po.mdwn diff --git a/doc/plugins/po.mdwn b/doc/plugins/po.mdwn index 7165015ab..91273ba98 100644 --- a/doc/plugins/po.mdwn +++ b/doc/plugins/po.mdwn @@ -5,6 +5,8 @@ This plugin adds support for multi-lingual wikis, translated with gettext, using [po4a](http://po4a.alioth.debian.org/). It depends on the Perl `Locale::Po4a::Po` library (`apt-get install po4a`). +As detailed bellow in the security section, `po4a` is subject to +denial-of-service attacks before version 0.35. [[!toc levels=2]] @@ -52,10 +54,10 @@ Supported languages `po_slave_languages` is used to set the list of supported "slave" languages, such as: - po_slave_languages => { 'fr' => 'Français', - 'es' => 'Castellano', - 'de' => 'Deutsch', - } + po_slave_languages => [ 'fr|Français', + 'es|Español', + 'de|Deutsch', + ] Decide which pages are translatable ----------------------------------- @@ -70,17 +72,19 @@ worry about excluding them explicitly from this [[ikiwiki/PageSpec]]. Internal links -------------- +### Links targets + The `po_link_to` option in `ikiwiki.setup` is used to decide how internal links should be generated, depending on web server features and site-specific preferences. -### Default linking behavior +#### Default linking behavior If `po_link_to` is unset, or set to `default`, ikiwiki's default linking behavior is preserved: `\[[destpage]]` links to the master language's page. -### Link to current language +#### Link to current language If `po_link_to` is set to `current`, `\[[destpage]]` links to the `destpage`'s version written in the current page's language, if @@ -89,7 +93,7 @@ available, *i.e.*: * `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 If `po_link_to` is set to `negotiated`, `\[[page]]` links to the negotiated preferred language, *i.e.* `foo/page/`. @@ -102,7 +106,6 @@ negotiated preferred language, *i.e.* `foo/page/`. * if the web server does not support Content Negotiation, setting `po_link_to` to `negotiated` will produce a unusable website. - Server support ============== @@ -111,7 +114,8 @@ Apache Using Apache `mod_negotiation` makes it really easy to have Apache serve any page in the client's preferred language, if available. -This is the default Debian Apache configuration. + +Add 'Options MultiViews' to the wiki directory's configuration in Apache. When `usedirs` is enabled, one has to set `DirectoryIndex index` for the wiki context. @@ -120,14 +124,17 @@ Setting `DefaultLanguage LL` (replace `LL` with your default MIME language code) for the wiki context can help to ensure `bla/page/index.en.html` is served as `Content-Language: LL`. +For details, see [Apache's documentation](http://httpd.apache.org/docs/2.2/content-negotiation.html). + lighttpd -------- -lighttpd unfortunately does not support content negotiation. +Recent versions of lighttpd should be able to use +`$HTTP["language"]` to configure the translated pages to be served. -**FIXME**: does `mod_magnet` provide the functionality needed to - emulate this? +See [Lighttpd Issue](http://redmine.lighttpd.net/issues/show/1119) +TODO: Example Usage ===== @@ -147,24 +154,9 @@ display things only on translatable or translation pages. The `OTHERLANGUAGES` loop provides ways to display other languages' versions of the same page, and the translations' status. -One typically adds the following code to `templates/page.tmpl`: - - -
- -
- - -The following variables are available inside the loop (for every page in): +An example of its use can be found in the default +`templates/page.tmpl`. In case you want to customize it, the following +variables are available inside the loop (for every page in): * `URL` - url to the page * `CODE` - two-letters language code @@ -175,15 +167,8 @@ The following variables are available inside the loop (for every page in): ### Display the current translation status The `PERCENTTRANSLATED` variable is set to the translation -completeness, expressed in percent, on "slave" pages. - -One can use it this way: - - -
- -
- +completeness, expressed in percent, on "slave" pages. It is used by +the default `templates/page.tmpl`. Additional PageSpec tests ------------------------- @@ -213,7 +198,7 @@ enabled, "slave" pages therefore link to the "master" page's discussion page. Likewise, "slave" pages are not supposed to have sub-pages; -[[WikiLinks|wikilink]] that appear on a "slave" page therefore link to +[[WikiLinks|ikiwiki/wikilink]] that appear on a "slave" page therefore link to the master page's sub-pages. Translating @@ -228,81 +213,108 @@ preferred `$EDITOR`, without needing to be online. Markup languages support ------------------------ -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: +[[Markdown|mdwn]] and [[html]] are well supported. Some other markup +languages supported by ikiwiki mostly work, but some pieces of syntax +are not rendered correctly on the slave pages: * [[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 +* LaTeX: not supported yet; the dedicated po4a module + could be used to support it, but it would need a security audit * other markup languages have not been tested. Security ======== -[[./security]] contains a detailed security analysis of this plugin +[[po/discussion]] contains a detailed security analysis of this plugin and its dependencies. 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. -TODO +BUGS ==== -Better links ------------- - -### Page title in links - -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. - -Robustness tests ----------------- - -### Enabling/disabling the plugin +[[!inline pages="bugs/po:* and !bugs/done and !link(bugs/done) and !bugs/*/*" +feeds=no actions=no archive=yes show=0]] -* 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** - -### Changing the plugin config - -* 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) - -### Creating/deleting/renaming pages - -All cases of master/slave page creation/deletion/rename, both via RCS -and via CGI, have been tested. - -### Misc - -* 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** - -Misc. bugs ----------- - -Documentation -------------- +TODO +==== -Maybe write separate documentation depending on the people it targets: -translators, wiki administrators, hackers. This plugin may be complex -enough to deserve this. +[[!inline pages="todo/po:* and !todo/done and !link(todo/done) and !todo/*/*" +feeds=no actions=no archive=yes show=0]] + +broken links to translatable basewiki pages that lack po files +-------------------------------------------------------------- + +If a page is not translated yet, the "translated" version of it +displays wikilinks to other, existing (but not yet translated?) +pages as edit links, as if those pages do not exist. + +That's really confusing, especially as clicking such a link +brings up an edit form to create a new, english page. + +This is with po_link_to=current or negotiated. With default, it doesn't +happen.. + +Also, this may only happen if the page being linked to is coming from an +underlay, and the underlays lack translation to a given language. +--[[Joey]] + +> Any simple testcase to reproduce it, please? I've never seen this +> happen yet. --[[intrigeri]] + +>> Sure, go here +>> (Currently 0% translateed) and see the 'WikiLink' link at the bottom, +>> which goes to +>> Compare with eg, the 100% translated Dansk version, where +>> the WikiLink link links to the English WikiLink page. --[[Joey]] + +>>> Seems not related to the page/string translation status: the 0% +>>> translated Spanish version has the correct link, just like the +>>> Dansk version => I'm changing the bug title accordingly. +>>> +>>> I tested forcing the sv html page to be rebuilt by translating a +>>> string in it, it did not fix the bug. I did the same for the +>>> Spanish page, it did not introduce the bug. So this is really +>>> weird. +>>> +>>> The smiley underlay seems to be the only place where the wrong +>>> thing happens: the basewiki underlay has similar examples +>>> that do not exhibit this bug. An underlay linking to another might +>>> be necessary to reproduce it. Going to dig deeper. --[[intrigeri]] + +>>>> After a few hours lost in the Perl debugger, I think I have found +>>>> the root cause of the problem: in l10n wiki's configured +>>>> `underlaydir`, the basewiki is present in every slave language +>>>> that is enabled for this wiki *but* Swedish. With such a +>>>> configuration, the `ikiwiki/wikilink` page indeed does not exist +>>>> in Swedish language: no `ikiwiki/wikilink.sv.po` can be found +>>>> where ikiwiki is looking. Have a look to +>>>> , the basewiki is not +>>>> available in Swedish language on this wiki. So this is not a po +>>>> bug, but a configuration or directories layout issue. This is +>>>> solved by adding the Swedish basewiki to the underlay dir, which +>>>> is I guess not a possibility in the l10n wiki context. I guess +>>>> this could be solved by adding `SRCDIR/basewiki` as an underlay +>>>> to your l10n wiki configuration, possibly using the +>>>> `add_underlays` configuration directive. --[[intrigeri]] + +>>>>> There is no complete Swedish underlay translation yet, so it is not +>>>>> shipped in ikiwiki. I don't think it's a misconfiguration to use +>>>>> a language that doesn't have translated underlays. --[[Joey]] + +>>>>>> Ok. The problem is triggered when using a language that doesn't +>>>>>> have translated underlays, *and* defining +>>>>>> `po_translatable_pages` in a way that renders the base wiki +>>>>>> pages translatable in po's view of things, which in turns makes +>>>>>> the po plugin act as if the translation pages did exist, +>>>>>> although they do not in this case. I still need to have a deep +>>>>>> look at the underlays-related code you added to `po.pm` a while +>>>>>> ago. Stay tuned. --[[intrigeri]] + +>>>>>>> Fixed in my po branch, along with other related small bugs that +>>>>>>> happen in the very same situation only. --[[intrigeri]]