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#1 2023-02-24 03:27:32
- alexkemp
- Member
- Registered: 2018-05-14
- Posts: 357
[SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
Chromium: chromium/stable-security
APT-Sources: http://deb.devuan.org/merged chimaera-security/main amd64
Version 110.0.5481.177 (Official Build) built on Debian 11.6, running on Debian 11.1 (64-bit)
A desire to be able to explore the contents of Chromium's cache led me to try to fix my Wine installation. Assistance to fix either would be appreciated.
First a brief on how this started, then details on each problem.
15 Jan: I ordered a Braun 3040s shaver from Amazon for £55.99
18 Feb: whilst investigating the cost of Guide Combs for the 3040s I discovered that the then-current cost of a 3040s at Amazon was £1100
Today: re-checking the cost, the 3040s is £35
The above caused me to doubt #2 above. It seemed bizarre at the time, and now I doubted it totally. I knew that it would be stored within Chromium's history, but also knew that any attempt to access that history would replace the cache with the current page. How could I view the stored historic pages?
Exactly what I wanted was at EaseUS Chrome Cache Viewer as a free download, but with a big caveat: it was only available for Windows or Mac.
Wine was already installed on my Chimaera system, so I downloaded the EaseUS zip file & attempted to use wine to run it. Oh dear.
$ mkdir ChromeCache
$ cd ChromeCache
$ mv ~/Downloads/chromecacheview.zip ./
$ wine ChromeCacheView.exe -folder ~/.cache/chromium/Default/Cache
it looks like wine32 is missing, you should install it.
as root, please execute "apt-get install wine32"
it looks like wine32 is missing, you should install it.
as root, please execute "apt-get install wine32"
002b:err:module:__wine_process_init L"Z:\\home\\alexk\\Personal\\ChromeCache\\ChromeCacheView.exe" not supported on this systemIt originally also told me to do # dpkg --add-architecture i386, and I cannot now reverse that instruction. My searching suggested that wine32 is now redundant since my amd64 system already contains provision for 32-bit wine. Are the suggestions above on installing wine32 now out-of-date?
My attempts to remedy the below may have it got me in deeper water, but here is the (seems to be misleading) original results:
$ sudo apt-get install wine32
[sudo] password for alexk:
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
libcurl4:i386 : Depends: libldap-2.4-2:i386 (>= 2.4.7) but it is not going to be installed
libvkd3d1:i386 : Depends: libvulkan1:i386 (>= 1.1.70) but it is not going to be installed
libwine:i386 : Depends: libldap-2.4-2:i386 (>= 2.4.7) but it is not going to be installed
Recommends: libgl1:i386 but it is not installable
Recommends: libglu1-mesa:i386 but it is not installable or
libglu1:i386
Recommends: libsane1:i386 (>= 1.0.27) but it is not installable
Recommends: libvulkan1:i386 (>= 1.2.131.2) but it is not going to be installed
Recommends: libgl1-mesa-dri:i386 but it is not installable
E: Unable to correct problems, you have held broken packages.I checked, and there are zero held packages.
Is anyone using WINE & knows how to escape these problems? Or, even better, does anyone know how to view or extract historic cache pages from Chromium?
2023-02-24: added Chromium version, etc.
Last edited by alexkemp (2023-02-24 12:14:59)
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#2 2023-02-24 05:09:21
- zapper
- Member
- Registered: 2017-05-29
- Posts: 967
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
Not relevant persay, but which chromium is this btw? Regular, or ungoogled?
You can try compiling from source though if this is an issue.
I used to do that all the time on non-mainstream distros.
I recommend people do the same, if this issue comes up.
Though it might still be frustrating. If you have a lot of cpus and more than one comp, its wise to use one for compiling, probably recommended at a slower speed if you want to be extra careful regarding heat.
The other one, do whatever probably.
Worked for me many time.
Hope this helps somewhat.
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#3 2023-02-24 09:38:35
- GlennW
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- From: Brisbane, Australia
- Registered: 2019-07-18
- Posts: 644
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
For wine, I have this in my /etc/apt/sources.list.d/
I'm running Daedalus, one of these winehq links keeps my system up to date.
I only have it installed because Steam needed it to install a game.
"https://dl.winehq.org/wine-builds/debian/"
/etc/apt/sources.list.d/winehq-bullseye.sources
Types: deb
URIs: https://dl.winehq.org/wine-builds/debian
Suites: bullseye
Components: main
Architectures: amd64 i386
Signed-By: /etc/apt/keyrings/winehq-archive.key/etc/apt/sources.list.d/winehq-bookworm.sources
Types: deb
URIs: https://dl.winehq.org/wine-builds/debian
Suites: bookworm
Components: main
Architectures: amd64 i386
Signed-By: /etc/apt/keyrings/winehq-archive.keyI hope this helps.
Have you thought about using a different browser to look at the cache?
All the best.
pic from 1993, new guitar day.
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#4 2023-02-24 12:24:20
- alexkemp
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- Registered: 2018-05-14
- Posts: 357
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
Have you thought about using a different browser to look at the cache?
The Chromium cache is an encrypted binary mess of connected directories (specialised JSON for the ones I've looked at), with not a single html nor css file within them. Can you suggest a browser that *can* view them?
Last edited by alexkemp (2023-02-24 12:30:53)
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#5 2023-02-24 16:18:20
- alexkemp
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- Registered: 2018-05-14
- Posts: 357
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
Bug posted just now:
Error: "it looks like wine32 is missing" but then cannot install wine32
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#6 2023-02-24 18:26:13
- delgado
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- Registered: 2022-07-14
- Posts: 212
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
As far as I remember
# dpkg --add-architecture i386
# apt install wine installed both, wine64 and wine32.
Indeet, it was impossible to get only wine64 without wine32 (trying to get away without i386-architecture).
EDIT: caution! My memory seems to trick me!
EDIT2: the above is true with apt's defaults or namely # apt install wine --install-recommends
Last edited by delgado (2023-02-25 12:13:30)
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#7 2023-02-24 21:54:16
- rolfie
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- Registered: 2017-11-25
- Posts: 1,171
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
As far as I remember when I installed wine a while ago, when you just specify # apt install wine you just get wine64, the additional architecture does not matter. i386 is pre-requisite to do an # apt install wine32.
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#8 2023-02-24 21:55:07
- GlennW
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- From: Brisbane, Australia
- Registered: 2019-07-18
- Posts: 644
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
GlennW wrote:Have you thought about using a different browser to look at the cache?
The Chromium cache is an encrypted binary mess of connected directories (specialised JSON for the ones I've looked at), with not a single html nor css file within them. Can you suggest a browser that *can* view them?
No I can't suggest any... Just a thought.
pic from 1993, new guitar day.
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#9 2023-02-25 00:12:45
- andyprough
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- Registered: 2019-10-19
- Posts: 327
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
The Chromium cache is an encrypted binary mess of connected directories (specialised JSON for the ones I've looked at), with not a single html nor css file within them. Can you suggest a browser that *can* view them?
There's some instructions on using sqlite to view chrome history from 8 years ago on this thread: https://askubuntu.com/questions/624120/ … e-terminal
Don't know if that's the way the data is still stored, but might be worth a look to see if the instructions make any sense.
There's also a cool looking little python project on github that says it can retrieve and view browser history from any browser on any platform: https://github.com/browser-history/browser-history
I'd probably try the python one first.
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#10 2023-02-25 10:27:18
- alexkemp
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- Registered: 2018-05-14
- Posts: 357
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
I'd probably try the python one first.
python package to retrieve (almost) any browser's history on (almost) any platform
I'm interested in neither the History (which I can obtain with a simple Ctrl-H) nor the Bookmarks, so fail to understand the point of installing that. I want to be able to view the historic pages in a browser, not the History.
Same with the askubuntu.com question:
Is it possible to view Google Chrome bookmarks and history from the terminal
The History is a binary file in SQLite format 3
Thanks for trying, Andy, but you appear to have misunderstood my query.
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#11 2023-02-25 10:40:28
- delgado
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- Registered: 2022-07-14
- Posts: 212
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
As far as I remember when I installed wine a while ago, when you just specify # apt install wine you just get wine64, the additional architecture does not matter. i386 is pre-requisite to do an # apt install wine32.
Interesting, you archived what I wanted at the time, but could not get.
Sorry, I did not ment to spread confuision.
EDIT:
Tested on Chimaera, it depends on 'recommended install'.
# apt install wine --no-install-recommendsdoes not install wine32, while
# apt install wine --install-recommends
# apt install wine64 --install-recommendsdoes, if i386 architecture is added.
Last edited by delgado (2023-02-25 11:32:34)
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#12 2023-02-25 14:43:54
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
I'm interested in neither the History (which I can obtain with a simple Ctrl-H) nor the Bookmarks, so fail to understand the point of installing that. I want to be able to view the historic pages in a browser, not the History.
Browsers do not store "historic pages" - in certain situations they store the single most recently requested version of a resource in a cache - this is performed at the point when a response is received, so if you requested the same URL yesterday as on the 18th then any previous cached version was already overwritten at that point.
However, I'd suggest it's very unlikely that Amazon caches search results for a week, so if you don't have a copy of the cache data made before it expired, it has likely already been cleaned up by a periodic cache expiry process.
3.1415P265E589T932E846R64338
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#13 2023-02-25 16:28:41
- alexkemp
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- Registered: 2018-05-14
- Posts: 357
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
I'd suggest it's very unlikely that Amazon caches search results for a week
$ cd ~/.cache/chromium/Default/Cache/Cache_Data
$ fgrep amazon * -l > amazon.txt
grep: index-dir: Is a directory
$ wc -l amazon.txt
588 amazon.txt
$ fgrep amazon * -l | xargs ls -ltr
grep: index-dir: Is a directory
-rw------- 1 alexk alexk 6640 Jan 14 10:40 a25a4684dc578add_0
-rw------- 1 alexk alexk 6283 Feb 16 11:25 53cb04645ec61dbe_0
-rw------- 1 alexk alexk 15666 Feb 17 23:58 e8f89e2a5b7a01f1_0
-rw------- 1 alexk alexk 13867 Feb 17 23:58 886a5cd11ba0631f_0
-rw------- 1 alexk alexk 5874 Feb 17 23:58 316a7542b7befa08_0
-rw------- 1 alexk alexk 8924 Feb 17 23:58 0178e5420f91ea0d_0
-rw------- 1 alexk alexk 7659 Feb 17 23:58 ad11df88c0edb21b_0
-rw------- 1 alexk alexk 10943 Feb 17 23:58 548924d727f4b76c_0
-rw------- 1 alexk alexk 6091 Feb 17 23:58 3f2cf4a8f4ed3da1_0
-rw------- 1 alexk alexk 11344 Feb 17 23:58 5bee7426f918804c_0
-rw------- 1 alexk alexk 7267 Feb 17 23:58 5602f4c5219938bd_0
-rw------- 1 alexk alexk 14755 Feb 17 23:58 847822115a578d5c_0
-rw------- 1 alexk alexk 5492 Feb 17 23:58 421a319a89da0977_0
-rw------- 1 alexk alexk 7717 Feb 17 23:58 21287a7168c435cf_0
-rw------- 1 alexk alexk 6705 Feb 17 23:58 467f6b3bbdaba59b_0
-rw------- 1 alexk alexk 11348 Feb 18 00:09 fe2bc889ad53c7e8_0
-rw------- 1 alexk alexk 12090 Feb 18 00:09 b9868882a8c66b57_0
-rw------- 1 alexk alexk 5113 Feb 18 00:21 705dafad26790491_0Online
#14 2023-02-25 16:40:08
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
Ok, well if those are search results that does surprise me.
What's the current blocker? Have you grepped those files for 3040s and 1100 ?
3.1415P265E589T932E846R64338
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#15 2023-02-25 21:00:41
- alexkemp
- Member
- Registered: 2018-05-14
- Posts: 357
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
I *did* originally grep the files for '3040s' (not 1100) & found it in a number of dates (4 different dates if I remember correctly). I have a record in bash history only of 'Feb 18', 3 different files, due to specific checks made at the time. However, today *none* of the files contain '3040s', which is why in the abbreviated results (there are *far* more records after the last one above) I used 'amazon' as the search term.
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#16 2023-02-25 22:53:24
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
However, today *none* of the files contain '3040s', which is why in the abbreviated results (there are *far* more records after the last one above) I used 'amazon' as the search term.
Ok, so you've not determined those files are related to the search results HTML response, and they may well be other things - scripts, styles, images, etc.
Unless the files are encrypted, a failure to find "3040s" probably means they have since expired and been removed (especially if it was returning results earlier).
Have you looked at any of the files to determine contents?
Try replacing the ls command for file (perhaps with -z), and then grep the results for "HTML" or "text"?
Last edited by boughtonp (2023-02-25 22:58:50)
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#17 2023-02-26 00:56:35
- alexkemp
- Member
- Registered: 2018-05-14
- Posts: 357
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
Have you looked at any of the files to determine contents?
Yes. It's not easy, since they all give the same enigmatic response to file:
~/.cache/chromium/Default/Cache/Cache_Data$ file -z 00037beb6d874770_0
00037beb6d874770_0: dataSome refer to css files, some to image files, and so on. I've tried to find html files but that is difficult, as almost all files contain the text 'text/html' without actually containing any reference to such a file. Annoyingly, none seem to contain any actual css, png, html nor any other filetype content, though they do seem to contain packet headers. I'll try to illustrate:
$ hexdump 47c5717d1de790a5_0 -C
00000000 30 5c 72 a7 1b 6d fb fc 05 00 00 00 78 00 00 00 |0\r..m......x...|
00000010 31 0b 69 2c 00 00 00 00 31 2f 30 2f 5f 64 6b 5f |1.i,....1/0/_dk_|
00000020 68 74 74 70 73 3a 2f 2f 79 6f 75 74 75 62 65 2e |https://youtube.|
00000030 63 6f 6d 20 68 74 74 70 73 3a 2f 2f 79 6f 75 74 |com https://yout|
00000040 75 62 65 2e 63 6f 6d 20 68 74 74 70 73 3a 2f 2f |ube.com https://|
00000050 77 77 77 2e 67 73 74 61 74 69 63 2e 63 6f 6d 2f |www.gstatic.com/|
00000060 79 6f 75 74 75 62 65 2f 69 6d 67 2f 62 72 61 6e |youtube/img/bran|
00000070 64 69 6e 67 2f 66 61 76 69 63 6f 6e 2f 66 61 76 |ding/favicon/fav|
00000080 69 63 6f 6e 5f 31 34 34 78 31 34 34 2e 70 6e 67 |icon_144x144.png|
00000090 89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52 |.PNG........IHDR|
000000a0 00 00 00 90 00 00 00 90 08 03 00 00 00 d0 98 12 |................|
000000b0 8a 00 00 00 63 50 4c 54 45 00 00 00 ff 00 00 ff |....cPLTE.......|
000000c0 00 00 ff 00 00 ff 00 00 ff 00 00 ff 00 00 ff 00 |................|
# (snip)
00000390 00 fc 86 92 50 21 39 2f 00 e8 02 00 00 48 54 54 |....P!9/.....HTT|
000003a0 50 2f 31 2e 31 20 32 30 30 00 61 63 63 65 70 74 |P/1.1 200.accept|
000003b0 2d 72 61 6e 67 65 73 3a 62 79 74 65 73 00 63 72 |-ranges:bytes.cr|
000003c0 6f 73 73 2d 6f 72 69 67 69 6e 2d 72 65 73 6f 75 |oss-origin-resou|
000003d0 72 63 65 2d 70 6f 6c 69 63 79 3a 63 72 6f 73 73 |rce-policy:cross|
000003e0 2d 6f 72 69 67 69 6e 00 63 72 6f 73 73 2d 6f 72 |-origin.cross-or|
000003f0 69 67 69 6e 2d 6f 70 65 6e 65 72 2d 70 6f 6c 69 |igin-opener-poli|
00000400 63 79 2d 72 65 70 6f 72 74 2d 6f 6e 6c 79 3a 73 |cy-report-only:s|
00000410 61 6d 65 2d 6f 72 69 67 69 6e 3b 20 72 65 70 6f |ame-origin; repo|
00000420 72 74 2d 74 6f 3d 22 73 74 61 74 69 63 2d 6f 6e |rt-to="static-on|
00000430 2d 62 69 67 74 61 62 6c 65 22 00 72 65 70 6f 72 |-bigtable".repor|
00000440 74 2d 74 6f 3a 7b 22 67 72 6f 75 70 22 3a 22 73 |t-to:{"group":"s|
00000450 74 61 74 69 63 2d 6f 6e 2d 62 69 67 74 61 62 6c |tatic-on-bigtabl|
00000460 65 22 2c 22 6d 61 78 5f 61 67 65 22 3a 32 35 39 |e","max_age":259|
00000470 32 30 30 30 2c 22 65 6e 64 70 6f 69 6e 74 73 22 |2000,"endpoints"|
00000480 3a 5b 7b 22 75 72 6c 22 3a 22 68 74 74 70 73 3a |:[{"url":"https:|
00000490 2f 2f 63 73 70 2e 77 69 74 68 67 6f 6f 67 6c 65 |//csp.withgoogle|
000004a0 2e 63 6f 6d 2f 63 73 70 2f 72 65 70 6f 72 74 2d |.com/csp/report-|
000004b0 74 6f 2f 73 74 61 74 69 63 2d 6f 6e 2d 62 69 67 |to/static-on-big|
000004c0 74 61 62 6c 65 22 7d 5d 7d 00 63 6f 6e 74 65 6e |table"}]}.conten|
000004d0 74 2d 6c 65 6e 67 74 68 3a 37 32 39 00 78 2d 63 |t-length:729.x-c|
000004e0 6f 6e 74 65 6e 74 2d 74 79 70 65 2d 6f 70 74 69 |ontent-type-opti|
000004f0 6f 6e 73 3a 6e 6f 73 6e 69 66 66 00 73 65 72 76 |ons:nosniff.serv|
00000500 65 72 3a 73 66 66 65 00 78 2d 78 73 73 2d 70 72 |er:sffe.x-xss-pr|
00000510 6f 74 65 63 74 69 6f 6e 3a 30 00 64 61 74 65 3a |otection:0.date:|
00000520 53 75 6e 2c 20 31 33 20 4d 61 72 20 32 30 32 32 |Sun, 13 Mar 2022|
00000530 20 31 36 3a 34 32 3a 33 39 20 47 4d 54 00 65 78 | 16:42:39 GMT.ex|
00000540 70 69 72 65 73 3a 4d 6f 6e 2c 20 31 33 20 4d 61 |pires:Mon, 13 Ma|
00000550 72 20 32 30 32 33 20 31 36 3a 34 32 3a 33 39 20 |r 2023 16:42:39 |
00000560 47 4d 54 00 63 61 63 68 65 2d 63 6f 6e 74 72 6f |GMT.cache-contro|
00000570 6c 3a 70 75 62 6c 69 63 2c 20 6d 61 78 2d 61 67 |l:public, max-ag|
00000580 65 3d 33 31 35 33 36 30 30 30 00 61 67 65 3a 34 |e=31536000.age:4|
00000590 37 35 37 39 34 00 6c 61 73 74 2d 6d 6f 64 69 66 |75794.last-modif|
000005a0 69 65 64 3a 54 68 75 2c 20 30 33 20 4f 63 74 20 |ied:Thu, 03 Oct |
000005b0 32 30 31 39 20 31 30 3a 31 35 3a 30 30 20 47 4d |2019 10:15:00 GM|
000005c0 54 00 63 6f 6e 74 65 6e 74 2d 74 79 70 65 3a 69 |T.content-type:i|
000005d0 6d 61 67 65 2f 70 6e 67 00 61 6c 74 2d 73 76 63 |mage/png.alt-svc|
000005e0 3a 68 33 3d 22 3a 34 34 33 22 3b 20 6d 61 3d 32 |:h3=":443"; ma=2|
000005f0 35 39 32 30 30 30 2c 68 33 2d 32 39 3d 22 3a 34 |592000,h3-29=":4|
00000600 34 33 22 3b 20 6d 61 3d 32 35 39 32 30 30 30 2c |43"; ma=2592000,|
00000610 68 33 2d 51 30 35 30 3d 22 3a 34 34 33 22 3b 20 |h3-Q050=":443"; |
00000620 6d 61 3d 32 35 39 32 30 30 30 2c 68 33 2d 51 30 |ma=2592000,h3-Q0|
00000630 34 36 3d 22 3a 34 34 33 22 3b 20 6d 61 3d 32 35 |46=":443"; ma=25|
00000640 39 32 30 30 30 2c 68 33 2d 51 30 34 33 3d 22 3a |92000,h3-Q043=":|
00000650 34 34 33 22 3b 20 6d 61 3d 32 35 39 32 30 30 30 |443"; ma=2592000|
00000660 2c 71 75 69 63 3d 22 3a 34 34 33 22 3b 20 6d 61 |,quic=":443"; ma|
00000670 3d 32 35 39 32 30 30 30 3b 20 76 3d 22 34 36 2c |=2592000; v="46,|
00000680 34 33 22 00 00 03 00 00 00 c0 04 00 00 30 82 04 |43"..........0..|
00000690 bc 30 82 03 a4 a0 03 02 01 02 02 11 00 89 50 eb |.0............P.|The inevitable conclusion is that the actual content must be somewhere else within the labyrinth of dirs.
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#18 2023-02-26 01:05:01
- alexkemp
- Member
- Registered: 2018-05-14
- Posts: 357
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
Obviously, somewhere in the Chromium code will be routines for accessing, exploring & extracting these cached files. I'm simply astonished that so few people (seemingly just one) have produced a Chrome cache viewer.
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#19 2023-02-26 07:22:31
- aluma
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- Registered: 2022-10-26
- Posts: 646
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
... I'm simply astonished that so few people (seemingly just one) have produced a Chrome cache viewer.
Probably because for the average user, the opposite task is more relevant - to clear the cache on exit. Anyway, some gurus give this advice for safety.
My Iridium and Firefox caches are placed in tmpfs, instead of the Firefox extension to clear the cache, just a desktop icon with this command.
In cases like yours, I just take a screenshot of the order page with prices, numbers, etc.
Last edited by aluma (2023-02-26 07:24:30)
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#20 2023-02-26 12:16:44
- alexkemp
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- Registered: 2018-05-14
- Posts: 357
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
This is fundamental info for the Chromium disk_cache.
This is the src dir for the Chromium disk_cache
Last edited by alexkemp (2023-02-26 12:29:58)
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#21 2023-02-27 21:32:12
- alexkemp
- Member
- Registered: 2018-05-14
- Posts: 357
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
BeginnerForever at this StackOverflow page has a PHP script which, after just a couple of tweaks, will extract all JPEG + PNG files from the Chromium/Chrome dir to a dir. Fast & very impressive
There now follows my small update to that script. I've added a section for GIF files (those files get extracted, but do not work as image files):
#!/usr/bin/php
<?php
// getCC (get Chrome Cache)
// suggestion: save as ~/.getCC; chmod +x; chmod 700
$dir = "/home/alexk/.cache/chromium/Default/Cache/Cache_Data/"; // Chromium cache folder.
$ppl = "/home/alexk/Personal/ChromeCache/Files/"; // Place for extracted files
// $END = "HTTP/1.1 200 OK"; // Search in cache-file (works, yet not in some files)
$END = "HTTP/1.1 200"; // Search in cache-file (works, and IS in all files)
$FTL = ""; // Filetype lowercase
$FTU = ""; // Filetype uppercase
$MOFF = 0; // Offset of magic from file beginning
$list = scandir( $dir );
foreach( $list as $filename ) {
if( is_file( $dir.$filename )) {
$content = file_get_contents( $dir.$filename );
if( strstr( $content, 'JFIF')) {
$FTL = "jpg";
$FTU = "JPEG";
$MOFF = 6;
echo( $filename." $FTU \n");
$start = ( strpos( $content, "JFIF", 0 ) - $MOFF );
$end = strpos( $content, $END, 0 );
$content = substr( $content, $start, $end - $MOFF );
$length = strlen( $content );
$wholenm = $ppl.$filename.".$FTL";
file_put_contents( $wholenm, $content );
// echo( "Saving :".$wholenm." \n");
echo( "start : $start \n");
echo( "end : $end \n");
$diff = $end - $start;
echo( "length: $length (s/b $diff)\n");
}
elseif( strstr( $content, "\211PNG")) {
$FTL = "png";
$FTU = "PNG";
$MOFF = 1;
echo( $filename." $FTU \n");
$start = ( strpos( $content, "$FTU", 0 ) - $MOFF );
$end = strpos( $content, $END, 0 );
$content = substr( $content, $start, $end - $MOFF );
$length = strlen( $content );
$wholenm = $ppl.$filename.".$FTL";
file_put_contents( $wholenm, $content );
// echo( "Saving :".$wholenm." \n");
echo( "start : $start \n");
echo( "end : $end \n");
$diff = $end - $start;
echo( "length: $length (s/b $diff)\n");
}
elseif( strstr( $content, "GIF89a")) {
$FTL = "gif";
$FTU = "GIF";
$MOFF = 0;
echo( $filename." $FTU \n");
$start = ( strpos( $content, "GIF89a", 0 ) - $MOFF );
$end = strpos( $content, $END, 0 );
$newc = substr( $content, $start, $end );
$length = strlen( $newc );
$wholenm = $ppl.$filename.".$FTL";
file_put_contents( $wholenm, $newc );
echo( "Saving :".$wholenm." \n");
echo( "start : $start \n");
echo( "end : $end \n");
$diff = $end - $start;
echo( "length: $length (s/b $diff)\n");
}
else {
echo( $filename." UNKNOWN \n");
}
}
}
?>There are a couple of strange occurrences that I cannot explain nor fix, and have added some echo lines to try to debug it. I'm going to rewrite the script in BASH which, hopefully, will be more reliable. If so, I will not need WINE (hooray!).
Line 8 has $END = "HTTP/1.1 200 OK"; & each section has $end = strpos( $content, $END, 0 );. I discovered that some files do not have an "OK" in the cache-file, yet they were found (not by grep) & the image correctly extracted. I cannot explain what is going on there.
The file content is concatenated within the Cache_Data file immediately before the $END string. Somehow, none of the extracted files is the length that they should be. JPEG + PNG files do not seem to mind, but GIF files refuse to play. I put some echo lines into the script to try to debug what on earth is going on.
Here is the very end of the script text output, to try to give some sense of the difficulty:
ffa41e3d8b4e0cf9_0 PNG
start : 150
end : 14212
length: 14211 (s/b 14062)
ffa78518232ea9f2_0 PNG
start : 170
end : 1417
length: 1416 (s/b 1247)
ffad48f3aefb6cd7_0 GIF
Saving :/home/alexk/Personal/ChromeCache/Files/ffad48f3aefb6cd7_0.gif
start : 1089
end : 1183
length: 1183 (s/b 94)
ffba1f5387a04a08_0 JPEG
start : 166
end : 972
length: 966 (s/b 806)
ffbf8448256da635_0 UNKNOWN
ffc1ebd8d62551b6_0 GIF
Saving :/home/alexk/Personal/ChromeCache/Files/ffc1ebd8d62551b6_0.gif
start : 193
end : 288
length: 288 (s/b 95)
ffc2019c23af2000_0 UNKNOWN
ffc239239bc4e4a9_0 JPEG
start : 195
end : 1920
length: 1914 (s/b 1725)
ffc57d9b41cebadd_0 UNKNOWN
ffcbd7258d6a0aea_0 UNKNOWN
ffda4d6b8e2937fd_0 UNKNOWN
ffdac4bf770719a1_0 UNKNOWN
ffde560cb8ad0eaf_0 UNKNOWN
fff42f6de6d58540_0 UNKNOWN
fff530252c03d813_0 UNKNOWN
fff55afc8b58e35f_0 UNKNOWN
fff822c2bb27d828_0 GIF
Saving :/home/alexk/Personal/ChromeCache/Files/fff822c2bb27d828_0.gif
start : 202
end : 297
length: 297 (s/b 95)
index UNKNOWNPHP seems to be unworkable now, so I'm going to switch to BASH.
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#22 2023-02-28 02:25:53
- zapper
- Member
- Registered: 2017-05-29
- Posts: 967
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
Btw, when I said compiling is an option, I should clarify, I meant wine, not chromium or ungoogled chromium.
Wine actually isnt at all hard to compile, as long as you have the multilib stuff supposedly.
Freedom is never more than one generation away from extinction. Feelings are not facts
If you wish to be humbled, try to exalt yourself long term If you wish to be exalted, try to humble yourself long term
Favourite operating systems: Hyperbola Devuan OpenBSD
Peace Be With us All!
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#23 2023-02-28 10:32:41
- alexkemp
- Member
- Registered: 2018-05-14
- Posts: 357
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
Mark Hindley in the bug report was able to get to the gates of success in installing wine32 on a vanilla chimaera, and has therefore fingered backports as the reason for the error on my system. That log-file reported a terrifyingly-large number of i386 packages to install as helpers to wine32.
I would like to give public thanks to Mark for his help so far, but I'm going to remove all traces of Wine & the i386 architecture from my system.
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#24 2023-03-03 07:18:07
- zapper
- Member
- Registered: 2017-05-29
- Posts: 967
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
Mark Hindley in the bug report was able to get to the gates of success in installing wine32 on a vanilla chimaera, and has therefore fingered backports as the reason for the error on my system. That log-file reported a terrifyingly-large number of i386 packages to install as helpers to wine32.
I would like to give public thanks to Mark for his help so far, but I'm going to remove all traces of Wine & the i386 architecture from my system.
Wise considering the lack of security on wine.
Freedom is never more than one generation away from extinction. Feelings are not facts
If you wish to be humbled, try to exalt yourself long term If you wish to be exalted, try to humble yourself long term
Favourite operating systems: Hyperbola Devuan OpenBSD
Peace Be With us All!
Offline
#25 2023-03-05 02:34:28
- alexkemp
- Member
- Registered: 2018-05-14
- Posts: 357
Re: [SOLVED] Help requested with WINE setup and/or Chromium Cache Searching
I'm simply astonished that so few people (seemingly just one) have produced a Chrome cache viewer.
There *is* another on Github. It was a little heavyweight for me, so I spent a week learning PERL whilst writing a script to extract all the Chrome-cached files into a directory. ~100 lines. Below for your elucidation:
4pm update: +20 lines to fix ~2000 bad files
5pm update: added Brotli compression encoding; still not sure if that works ok
Mar 8 update: Brotli now works; ~150 active lines (+ ~10 debug lines commented out)
#!/usr/bin/perl
# get Chrome Cache
# suggestion: save as ~/.getCC; chmod +x; chmod 700
# A PERL script to iterate through the Chromium/Chrome 'Cache_Data/'
#+extract all http-delivered files stored within those data-files
# 2023-03-08: bugfix: COUNT removed; LEN used instead
# + (F_OFF used for BEG, not COUNT)
# + brotli now works
# + (no magic for brotli (a mistake imo))
# 2023-03-07: bugfix: corrected miss on most magic files (my bad)
# + excluded compound header fields to eliminate wrong values
# added $F_OFF (diff between HTTP-begin ($END - $LEN) & magic-begin ($BEG))
# + (*every* file with both $BEG & $LEN has diff == x34) (h-begin is bigger)
# + thus if no magic but LEN then BEG = END - LEN - 52
# + if magic but no LEN then LEN = END - BEG - 52 (yes, this *does* happen)
# 2023-03-05: bugfix: coded to exclude 711 zero-length files
# + account for multiple-same-value $mime (fixes ~1000 gif + jpg files)
# + added 'Content-Encoding:br' Brotli compression
# + (you may need 'sudo apt install brotli' to view those files)
use strict;
use warnings;
use autodie;
use experimental qw( switch );
# save algorithm:
# 1) only save HTTP 200 files ($END)
# 2) try first to set file beginning ($BEG) from magic bytes
# 3) if (2) fails, set $BEG from $LEN; if no length, then ignore file
# 4) extract section $BEG to $END from $IN file into $OUT dir
# 5) touch file to conform with http header date
# Stats 2023-03-06:
# 10978 HTTP 200 from 23594 files in Cache_Data
# 6 do NOT contain a MIME field
# 10979 files saved to disk (real 1m23.219s)
# Global CONSTANTS
my $IN = "/home/alexk/.cache/chromium/Default/Cache/Cache_Data/"; # Chromium cache folder.
my $OUT = "/home/alexk/Personal/ChromeCache/Files/"; # Place for extracted files
my $HTTP = "HTTP/1.1 200"; # '200 OK' not in all files
my $F_OFF= 52; # Offset of HTTP-begin from magic-begin (BEG) + LEN
opendir( my $d, "$IN") or die "Cannot open directory $IN: $!\n"; # Open cache dir
my @list
= grep {
!/^\.\.?$/ # miss /. + /.. files
&& -f "$IN/$_" # is a file (not dir, etc)
} readdir( $d );
closedir( $d );
foreach my $f (@list) { # Iterate through each cached data-file
# my $f = "0f0ce6df8548452e_0";
# section variables
my $BEG = -1; # Extract begins (bytes)
my $BROTLI = 0; # brotli encoding (0/1)
my $END = -1; # Extract ends (bytes)
my $GZIP = 0; # gzip encoding (0/1)
my $magic = '';
my $MIME = ""; # content-type
my $MOD = ""; # last-modified
my $OFF = -1; # Offset of magic from file beginning
my $TLS = ""; # TLS==Three Letter Suffix
my $LEN = -1; # content-length
open my $fhi, '<:raw', "$IN/$f" or die $!;
read( $fhi, my $cache_buffer, -s "$IN/$f" );
close( $fhi ) or die "could not close $IN/$f: $!";
$END = index( $cache_buffer, "$HTTP"); # Check for presence of HTTP 200 OK header
if( $END > -1 ) { #+(and therefore std header fields)
if( $cache_buffer =~ /\x00Content-Encoding:\s*br/i ) { $BROTLI = 1; }
if( $cache_buffer =~ /\x00Content-Encoding:\s*gzip/i ) { $GZIP = 1; }
if( $cache_buffer =~ /\x00Content-Length:\s*(\d+)/i ) {
$LEN = $1;
if( !$LEN ) { $LEN = -1; } # yes, some pages have Content-Length:0
}
if( $cache_buffer =~ /\x00Last-Modified:\s*([ A-Za-z0-9,:]+)/i ) {
$MOD = $1; # some web servers ignore case + introduce spaces!
} else {
if( $cache_buffer =~ /\x00Date:\s*([ A-Za-z0-9,:]+)/i ) { # did page did not want to be cached? (Chromium did it anyway!)
$MOD = $1; # (all pages should have a date (or a Date))
}
}
if( $cache_buffer =~ /\x00Content-Type:\s*([a-z-]+\/[a-z0-9.+-]+)/i ) {
$MIME = $1;
} # variable $1 NOT reset on failed match (v stupid)
given( $MIME ) {
when ('application/font-woff' ) { $magic = 'wOFF'; $OFF = 0; $TLS = 'woff'; }
when ('application/font-woff2') { $magic = 'wOF2'; $OFF = 0; $TLS = 'woff2'; }
when ('application/javascript') { $magic = "\x{1f}\x{8b}\x{08}"; $OFF = 0; $TLS = 'js'; } # magic for gzip encoding
when ('application/json') { $magic = "\x{1f}\x{8b}\x{08}"; $OFF = 0; $TLS = 'json'; }
when ('application/x-javascript'){ $magic = "\x{1f}\x{8b}\x{08}"; $OFF = 0; $TLS = 'js'; }
when ('application/xml') { $magic = "\x{1f}\x{8b}\x{08}"; $OFF = 0; $TLS = 'js'; }
when ('binary/octet-stream') { $magic = "GIF89a"; $OFF = 0; $TLS = 'gif'; }
when ('font/ttf') { $magic = "\x{00}\x{01}\x{00}\x{00}\x{00}"; $OFF = 0; $TLS = 'ttf'; }
when ('font/woff') { $magic = 'wOFF'; $OFF = 0; $TLS = 'woff'; }
when ('font/woff2') { $magic = 'wOF2'; $OFF = 0; $TLS = 'woff2'; }
when ('image/gif') { $magic = 'GIF87a'; $OFF = 0; $TLS = 'gif'; }
# when ('image/gif') { $magic = 'GIF89a'; $OFF = 0; $TLS = 'gif'; }
when ('image/jpeg') { $magic = 'JFIF'; $OFF = 6; $TLS = 'jpg'; }
# when ('image/jpeg') { $magic = 'Exif'; $OFF = 6; $TLS = 'jpeg'; }
# when ('image/jpeg') { $magic = "\x{ff}\x{d8}\x{ff}\x{e0}"; $OFF = 6; $TLS = 'jpg'; }
when ('image/png') { $magic = "\x{89}PNG"; $OFF = 0; $TLS = 'png'; }
when ('image/svg+xml') { $magic = "\x{1f}\x{8b}\x{08}"; $OFF = 0; $TLS = 'svg'; }
when ('image/vnd.microsoft.icon'){ $magic = "\x{00}\x{00}\x{01}\x{00}"; $OFF = 0; $TLS = 'ico'; }
when ('image/webp') { $magic = 'RIFF'; $OFF = 0; $TLS = 'webp'; }
when ('text/css') { $magic = "\x{1f}\x{8b}\x{08}"; $OFF = 0; $TLS = 'css'; }
when ('text/fragment+html') { $magic = "\x{1f}\x{8b}\x{08}"; $OFF = 0; $TLS = 'htm'; }
when ('text/html') { $magic = "\x{1f}\x{8b}\x{08}"; $OFF = 0; $TLS = 'html'; }
when ('text/javascript') { $magic = "\x{1f}\x{8b}\x{08}"; $OFF = 0; $TLS = 'js'; }
when ('text/plain') { $magic = "\x{1f}\x{8b}\x{08}"; $OFF = 0; $TLS = 'txt'; }
when ('video/mp4') { $magic = 'ftypisom'; $OFF = 4; $TLS = 'mp4'; } # most unlikely
default { $magic = ''; $OFF = 0; $TLS = ''; }
}
if( $magic ) {
if( $magic eq 'GIF87a') { # account for gif + jpeg multiple $magic
$BEG = index( $cache_buffer, "$magic" );
if( $BEG < 0 ) {
$magic = 'GIF89a';
$BEG = index( $cache_buffer, "$magic" );
}
} elsif( $magic eq 'JFIF') {
$BEG = index( $cache_buffer, "$magic" );
if( $BEG < 0 ) {
$magic = 'Exif';
$TLS = 'jpeg';
$BEG = index( $cache_buffer, "$magic" );
if( $BEG < 0 ) {
$magic = "\x{ff}\x{d8}\x{ff}\x{e0}";
$TLS = 'jpg';
$BEG = index( $cache_buffer, "$magic" );
}
}
}
$BEG = index( $cache_buffer, "$magic" );
}
# # trying to decode where each file begins (determine common offsets)
# if( $LEN < 1 && $BEG > -1 ) { }
# if( $BEG > -1 && $LEN > -1 ) {
# # at this point $BEG - $OFF == start of magic
# # $END == start of $HTTP
# # $LEN == length of content from header
# my $mbeg = $BEG - $OFF; my $mhex = sprintf("0x%X", $mbeg);
# my $hbeg = $END - $LEN; my $hhex = sprintf("0x%X", $hbeg);
# my $diff = $hbeg - $mbeg;
# my $dhex = sprintf("0x%X", $diff);
# print "$MIME: $f; \$END/\$LEN=$END / $LEN; \$mbeg=$mbeg / $mhex; \$hbeg=$hbeg / $hhex; \$diff=$diff / $dhex; \n";
# }
if( $BEG > -1 ) {
$BEG -= $OFF;
if( $LEN < 1 ) { $LEN = $END - $BEG - $F_OFF; } # v rare, but happens
} elsif( $LEN > -1 ) { $BEG = $END - $LEN - $F_OFF; } # no magic (text, xml + brotli files)
# suffixes (holy m$)
if( $TLS ) {
$TLS = ".$TLS";
if( $GZIP || $BROTLI ) { # account for different compression-encodings
if( $GZIP ) { $TLS = "$TLS.gz"; } else { $TLS = "$TLS.br"; }
}
}
# print the files out
if( $BEG > -1 && $LEN > -1 ) {
`dd if="$IN/$f" of="$OUT/$f$TLS" skip=$BEG count=$LEN iflag=skip_bytes,count_bytes status=none`;
if( $MOD ) { `touch "$OUT/$f$TLS" -d "$MOD"`; }
# print "$MIME: $f; \$TLS=$TLS; \$END=$END; \$BEG=$BEG; \$LEN=$LEN; \$MOD=$MOD; \n";
}
} # if( $END > -1 ) # other pages are most likely to be HTTP 204 No Content
}Last edited by alexkemp (2023-03-11 16:01:04)
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