57881 - Can't load cached pages if cache dir gets moved

Status: RESOLVED FIXED

(Core :: Networking: Cache, defect, P3)

Description

[cpratt]

Build ID: 2000100720, 2000100428 (Mtrunk), 2000102308 (Mtrunk), others

To reproduce:

- Launch Mozilla
- Create a new profile in the default directory
- Change your home page (I used http://uk.yahoo.com)
- Quit Mozilla
- Move the profile folder to the Desktop (or any other location)
- Start Mozilla

* Switch back to the Finder at this point and look at the location which used to 
contain the profile folder. You'll see that a file has been created in that 
location with type of ???? and creator of MOSS. The file will have the same name 
as the name of the profile folder you moved. If you open that file in BBEdit, 
you'll see that it contains the HTML source code of the page you had previously 
selected to be your home page.

- Once Mozilla has started, note that although you may see some of your home 
page, images will not load (at least not images that are defined by relative 
links in the HTML source). Dynamic images, eg. banner adds, may load
- Quit Mozilla and launch it a second time.

Result:

The home page is not loaded. Typing in its URL manually will also fail to load 
the page. If you look at the Preferences (and the bookmarks.html file), the URL 
you specified for the home page is still there, but you simply have no way of 
loading it in the browser.

If you throw away the file that was created (the one with the same name as the 
profile, the one created in the original location of the profile folder), you 
will be able to load the home page (again without images) at the next launch, but 
at the launch after that the browser will fail to load anything.

Comment 1

[Teruko Kobayashi]

I could reproduce this in 2000-10-24-08 Trunk Mac build.

Comment 2

[Simon Fraser [no longer active]]

Unlikely that ben should own this.

Comment 3

[Marcia Knous [:marcia]]

Netscape Nav triage team: this is not a Netscape beta stopper.  reassigning to 
ccarlen

Comment 4

[Conrad Carlen (not reading bugmail)]

I have see this before and think that it's a cache problem. By deleting the
cache folder, pages I had visited before rendered. I'll look for a bug on it.

Comment 5

[Conrad Carlen (not reading bugmail)]

Will investigate.

Comment 6

[Conrad Carlen (not reading bugmail)]

> * Switch back to the Finder at this point and look at the location which used
> to contain the profile folder. You'll see that a file has been created in that
> location with type of ???? and creator of MOSS. The file will have the same
> name as the name of the profile folder you moved. If you open that file in
> BBEdit, you'll see that it contains the HTML source code of the page you had
> previously selected to be your home page.

Just tried this and it happens as described. Looking into it, it is the necko
disk cache which is making the file with the name of the profile. That would
explain why it contains the contents of the supposed home page - it wasn't
found, so we went and fetched a new copy and tried to cache it - in the wrong
place. The nsLocalFileMac object which was wrongly created was initialized with
a full path. Since the cache dir was no longer in that path, the path was
resolved incorrectly into an FSSpec - possibly an nsLocalFileMac bug. Have to
look into that a bit more. I'm pretty sure nsLocalFileMac returns an error when
a path cannot be resolved but maybe it was ignored. I'd still say it's a cache
problem. Also, changing the summary. From what I have seen, any page which has
been cached will not load (or at least images on it) will not load if the cache
dir is moved.

Comment 7

[Conrad Carlen (not reading bugmail)]

It's a cache problem - not profile or nsIDirectoryService.

Comment 8

[neeti]

Cache bugs to Gordon

Comment 9

[gordon]

Moving to 0.9.2, though it will probably get fixed with pref/profile cleanup for 
0.9.1.

Comment 10

[gordon]

This appears fixed with the new disk cache.  I'm able to move my profile to the 
desktop, launch mozilla, and browse cached pages.  about:cache reports the cache 
directory is in the profile directory on the desktop.

Marking FIXED.