Chrome registry can't handle uppercase package names

RESOLVED FIXED in mozilla1.9alpha1



17 years ago
11 years ago


(Reporter: davidstl, Assigned: benjamin)


Dependency tree / graph
Bug Flags:
in-testsuite ?

Firefox Tracking Flags

(Not tracked)



(7 attachments)



17 years ago
I created an XPI package that simply pops up a window and says hello. When all
of my file names where in lower case, everything worked. But when I changed the
name of some of the files to mixed upper/lower case, it installed ok but when I
tried to run it I received a pop-up window that said:

The file
/D:/Program%20Files/ cannot
be found. Please check the location and try again.

Here are the two XPI packages I created:

  -content subdirectory

  -content subdirectory

After submitting the original bug I think it is possible to upload files. If so,
I'll upload my two XPI files. Thanks, David

Comment 2

17 years ago
There isn't anything different between this package and the other one except
the file names (plus I changed the pointers to them in the code).

Comment 3

17 years ago
Is the application type on the attachments correct? When I click on 
either one of them with Mozilla, I get an error:

XML Parsing Error: not well-formed
Line Number 1, Column 3:PK

Comment 5

17 years ago
Can't seem to find the right MIME type to let people download the xpi from the
bug report.

Comment 6

17 years ago
I figured it out now - I just let the web page decide the mime type.

Comment 7

17 years ago
Sorry, I'm not real organized today. The command I used to start the packages
were as follows:

mozilla.exe -chrome chrome://sayHello/content
mozilla.exe -chrome chrome://sayhi/content

Comment 8

17 years ago
Is this an xpidl issue or an xpinstall issue? Error message appears to be coming
from xpinstall.

Comment 9

17 years ago
You could be right that it is xpinstall. I'm not really sure.

Comment 10

17 years ago
David: thanks, I'm able to run both of the last two attachments,
of type application/x-xpinstall. However, I can't find where the files
are being saved to! I searched everywhere for sayhi.jar, sayhi.xul,
for example, but I can't find them! 

I'm probably making some mistake, but note the installer is not 
asking me where to put the files, and doesn't tell me where they
were saved.

Let me reassign this one to Installer:XPI Packages for now.
cc'ing self -
Assignee: dbradley → dveditz
Component: xpidl → Installer: XPI Packages
QA Contact: pschwartau → ktrina
I can confirm the bug, but everything looks good on the installer end.

I can't just click on the links above, I have to save them locally with a .xpi
extention, and then launch them browsing around using file:///c|/tmp/ etc.

Looking at install.log shows they both install OK as far as the installer can
tell. The install scripts use the "DELAYED_CHROME" style, and the stuff written
to installed-chrome.txt is correct.

Starting the browser appears to register the correct stuff in chrome.rdf

Using the command-line or entering a chrome: url in the location bar works for
the all-lowercase one, doesn't for the "sayHello" name. The error message shows
a leading slash (wrong on windows) and a path that differs from the registered
path. Since Mozilla itself has xul files with mixed case names it must be the
package name (in contents.rdf, not the .jar filename) that's causing the problem.
Assignee: dveditz → trudelle
Component: Installer: XPI Packages → XP Apps
Ever confirmed: true
QA Contact: ktrina → paw
Summary: XPI packages with capital letters can't be found → Chrome registry can't handle uppercase package names

Comment 12

17 years ago
Assignee: trudelle → hewitt

Comment 13

17 years ago
--> Jimmy is this your area?
QA Contact: paw → jimmylee

Comment 14

17 years ago
Close enough to be mine. :-)
Product: Core → Mozilla Application Suite
*** Bug 257997 has been marked as a duplicate of this bug. ***
The dupe is Linux, so setting OS->All.

Triggering this bug completely hoses Firefox in some cases, so it would be nice
if the installPackage method at least threw an exception when installing such
bad extension (so that the extension manager canceled the extension installation
and reported the problem).
OS: Windows 2000 → All

Comment 17

15 years ago
I had similar problems. Editing chrome.rdf to make package name all lowercase
allowed chrome to work.

Comment 18

15 years ago
I think this is caused by the standard URL parser thinking the <component> in
chrome://<component>/content is a domain name and converts it to lowercase.

This bug should probably should be in the Networking component

Comment 19

14 years ago
Tested - VSS_DocLinks_0.0.1.2.xpi from (changes:
content\vssdoclinks -> content\vssDocLinks + affected links corrected and
max-ver bump):
- FF 1.0.4 loads frozen (same under safemode)
- Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b2) Gecko/20050527
Firefox/1.0+ extension installed without any errors but beside entry in EM it is
not registered at all.

The bug might be fixed in 2 steps:
1. If chrome can't handle uppercase package names then the extension should have
been rejected by EM and alert with information shown to the user.
2. Add support in chrome for uppercase package names

BTW is the product / component really the proper one ?

Comment 20

14 years ago
Darin/Neil, what do you think? Should/can we allow mixed-case package names? If not, I can pretty easily add JSconsole warnings when people try to register them (at least on the toolkit chromereg side), or I can just automatically lowercase the packagename during registration.
Assignee: hewitt → benjamin
Component: XP Apps → XRE Startup
Product: Mozilla Application Suite → Toolkit
Or maybe we should just implement a proper chrome URL class...

Comment 22

14 years ago
Other than nsStandardURL normalizes to lowercase I don't see why we need to switch away from it: perhaps we can just add a flag on standardurl that controls case-normalization (or we could just document that packages are always lowercase).
My vote would be for automatic lowercasing, along with documentation stating that package names are not case sensitive.


14 years ago
Priority: -- → P2

Comment 24

14 years ago
Attachment #205662 - Flags: second-review?(darin)
Attachment #205662 - Flags: first-review?(

Comment 25

14 years ago
> My vote would be for automatic lowercasing, along with documentation stating
> that package names are not case sensitive.


Comment 26

14 years ago
Comment on attachment 205662 [details] [diff] [review]
Normalize chrome packages to lowercase, rev. 1

>Index: chrome/src/nsChromeRegistry.cpp

>+  rv = aChromeURL->GetHost(package);
>+  NS_ENSURE_SUCCESS(rv, rv);
>+  if (EnsureLowerCase(package))
>+    aChromeURL->SetHost(package);

The string code has a ToLowerCase method that returns void.  Perhaps
it would be better to make that version do what you want.  Or, are
you worried about making that version slower?
Attachment #205662 - Flags: second-review?(darin) → second-review+
Comment on attachment 205662 [details] [diff] [review]
Normalize chrome packages to lowercase, rev. 1

>+static PRBool
>+EnsureLowerCase(char &ch)
I suppose it would be too confusing to copy the names from nsURLHelper.cpp, but you might want to copy the implementation.

>+  if (EnsureLowerCase(package))
>+    aChromeURL->SetHost(package);
nsStandardURL already does this, that's why we have this bug in the first place.
Attachment #205662 - Flags: first-review?( → first-review-

Comment 28

14 years ago
I copied this impl from nsReadableUtils.cpp
Attachment #205729 - Flags: first-review?(
Comment on attachment 205729 [details] [diff] [review]
Normalize chrome packages to lowercase, rev. 2

>+static PRBool
>+EnsureLowerCase(char *aBuf)
>+      EnsureLowerCase(package);
The return value is redundant, no?

Is this worth sprinkling inline on?
Attachment #205729 - Flags: first-review?( → first-review+

Comment 30

14 years ago
Fixed on trunk. I also normalized skin/locale registrations, which I forgot in the original patch.
Last Resolved: 14 years ago
Resolution: --- → FIXED
so why not just call ToLowerCase?

Comment 32

14 years ago
> so why not just call ToLowerCase?

Is there a version of ToLowerCase that takes a |char*| argument?
oh, hm. maybe you could call ToLowerCase(nsDependentCString(package)); ?

Comment 34

14 years ago
> oh, hm. maybe you could call ToLowerCase(nsDependentCString(package)); ?

If that compiles then we have a problem:

  ToLowerCase(nsDependentCString("string literal"));

Comment 35

14 years ago
Actually, ToLowerCase(nsDependentCString("foo")) ends up modifying a copy of "foo".  So, it would not have the desired affect that bsmedberg wants (i.e., it would lower case a copy of |package| instead).
(In reply to comment #31)
>so why not just call ToLowerCase?
For the same reason nsStandardURL doesn't?

Comment 37

14 years ago
*** Bug 324860 has been marked as a duplicate of this bug. ***

Comment 38

14 years ago
(In reply to comment #37)
> *** Bug 324860 has been marked as a duplicate of this bug. ***
Thanks for that lightening fast response...however I still stand that URL naming conventions allow for mixed case.

My vote is for MIXED CASE, even if it's a little bit late.  So perhaps the next official release of Mozilla Firefox, could fix this particular feature of the '"standard URL parser * Neil Deakin'


13 years ago
Flags: in-testsuite?


12 years ago
Target Milestone: --- → mozilla1.9alpha1


11 years ago
Component: XRE Startup → Startup and Profile System
QA Contact: jimmykenlee → startup
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