On Thursday, February 19, 2015 at 10:40:47 PM UTC-8, Peter Suter wrote:
>
> Hi 
>
> On 19.02.2015 17:52, Emmanuel BOUAZIZ wrote: 
> > "There are two primary URL paths for static resources - |/chrome/common| 
> > and |/chrome/site|. Plugins can add their own resources, usually 
> > accessible by |/chrome/<plugin>| path, so its important to override only 
> > known paths and not try to make universal |/chrome| alias for 
> everything." 
> > 
> > * I suppose that if a plugin creates its own resource directory, it 
> > should be mapped too. A plugin like wikiextras creates 7 of these 
> > directories which makes a lot of aliases 
>
> Ideally, yes. 
>

I would also like to try and understand this better.

All of the static assets of WikiExtrasPlugin are extracted below 
/path/to/trac/htdocs/wikiextras, so would the following be sufficient, even 
though there are subdirectories in wikiextras?:

Alias /trac/chrome/wikiextras /path/to/trac/htdocs/wikiextras

$ find  /path/to/trac/htdocs/wikiextras/ -type d
/path/to/trac/htdocs/wikiextras/
/path/to/trac/htdocs/wikiextras/icons
/path/to/trac/htdocs/wikiextras/icons/fugue
/path/to/trac/htdocs/wikiextras/icons/fugue/icons-shadowless
/path/to/trac/htdocs/wikiextras/icons/fugue/bonus
/path/to/trac/htdocs/wikiextras/icons/fugue/bonus/icons-shadowless-32
/path/to/trac/htdocs/wikiextras/icons/fugue/bonus/icons-shadowless-24
/path/to/trac/htdocs/wikiextras/icons/fugue/bonus/icons-24
/path/to/trac/htdocs/wikiextras/icons/fugue/bonus/icons-32
/path/to/trac/htdocs/wikiextras/icons/fugue/icons
/path/to/trac/htdocs/wikiextras/css

> 
> > * I don't understand why "its important to override only known paths and 
> > not try to make universal |/chrome| alias for everything", unless you 
> > suspect a rogue user could create more directories in `htdocs` 
>
> I think it just means that not necessarily all paths can be mapped the 
> same way, e.g. because plugins will be installed later (but not mapped 
> in htdocs),


I think I'm missing some critical point here. Provided that all of the 
static resources are extracted below /path/to/trac/htdocs, for example:

$ ls  /path/to/trac/htdocs
common      newsflash  tracfullblog
footnote       site            wikiextas

... one still should not use the following alias?:

Alias /trac/chrome /path/to/trac/htdocs
 

> or maybe some plugins are installed globally and mapped to 
> some shared path etc. 
>
> There's also /chrome/shared defined by the htdocs_dir option in the 
> inherit section of the TracIni. 
>
> http://trac.edgewall.org/wiki/TracDev/TracURLs 
>
>
If I want to be sure that a file is being served by Apache, that would be 
indicated by the absence of GET requests in the log? The following message 
that is seen before I setup a mapping for footnote, but not after.

2015-03-21 02:06:21,372 Trac[main] DEBUG: Dispatching <RequestWithSession 
"GET '/chrome/footnote/footnote.css'"> 

Or is there another way I can check that Apache is serving the file?

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