spell fix, update setup.sh, and add FAQ
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Alexander Frick
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@ -272,7 +272,7 @@ $ autoninja -C out/Default unit_tests
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* You may want to [use a chroot](https://chromium.googlesource.com/chromium/src.git/+/refs/heads/main/docs/linux/using_a_chroot.md) to
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isolate yourself from versioning or packaging conflicts.
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* Cross-compiling for ARM? (Raspberry Pi) See the [Thorium ARM](https://github.com/Alex313031/thorium/tree/main/arm#readme) dir and [chromium_arm.md](https://chromium.googlesource.com/chromium/src.git/+/refs/heads/main/docs/linux/chromium_arm.md).
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* [Atom](https://atom.io/) and [Geany](https://www.geany.org/) are reccomended IDEs for working on Thorium.
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* [Atom](https://thorium.rocks/atom-ng/) and [Geany](https://www.geany.org/) are recommended IDEs for working on Thorium.
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### Debugging <a name="debugging"></a>
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* See the [Thorium DEBUG](https://github.com/Alex313031/thorium/tree/main/infra/DEBUG#readme) dir, including the [More Info](https://github.com/Alex313031/thorium/blob/main/infra/DEBUG/README.md#more-info-) section, and [DEBUGGING.md](https://github.com/Alex313031/thorium/blob/main/infra/DEBUG/DEBUGGING.md).
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@ -0,0 +1,62 @@
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## Thorium FAQ
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- Commonly asked questions, and answers to common GitHub issues that keep getting filed.
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__Q: Why is the Android version not letting me sign in to Google Sync?__
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A: Even though the Android versions are built with API Keys needed to sign-in, Google has placed extra restrictions on Android Chromium
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forks that prevent sign in unless the browser is on the Google Play Store and has been whitelisted by them (which costs money). The keys
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are still included to allow location services, but there is no workaround for Google Sync at this time.
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__Q: Why are Netflix, Spotify, Twitch, etc. not playing?__
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A: Thorium includes Widevine, which is a proprietary component used to play encrypted media streams on sites like these. It is used to prevent
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piracy by preventing downloading these videos in any format that would be readable by an external application. However, there are various "security
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levels" for Widevine. There is L3 "software secure", which is the least secure. It is used on Linux. Then there is L2 "VMP secure", which is what
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Windows and MacOS uses. Then there is L1 "hardware secure", which is only used on specific Windows, MacOS, and ChromeOS devices that are very new
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and have a hardware decoding chip for H.264 or H.264 (HEVC) videos that supports integration with Widevine to prevent tampering or circumvention
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at the hardware level. Anyway, VMP Secure means that the application has been signed by widevine.org. On Windows with Google Chrome or Firefox, this
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can be seen by the fact that next to widevine.dll, there is a widevine.sig, and next to the main program .exes, there is a corresponding .sig file.
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For example firefox.sig or chrome.sig. While Widevine includes the widevine.sig file always, and is publicly available, this only contains the public
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key of the widevine binary. Signing with Google's VMP service sends a hash of the main executable to their servers, it is signed with their private key
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and then the results are encrypted and sent back as a .sig file with the name matching the executable that was sent to them. Using this service costs
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a prohibitive amount of money for a FOSS project (1000's of dollars). On Linux, Widevine detects that the platform is Linux, and sends a response header
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to sites which then allows playback even though it is only software secure. But usually, sites will limit the resolution to 480p (i.e. SD), including Netflix.
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This has been a long standing problem/complaint in the Linux community. For Windows and MacOS, things are more complicated. While Widevine will work, since
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it is not VMP signed, it will only send an L3 header. Some sites will accept this on Windows (like Hulu), but some sites require VMP when it detects that it
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is on Windows or MacOS. Netflix used to not restrict this, but as of 2023, it will refuse to play without VMP. There is no way to spoof this by changing the
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User Agent to report Linux. Widevine detects the OS and sends it as part of the header to the website. As a side note, L1 is used to allow 4K or 8K playback
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on some sites that support it (like Netflix). Many streaming devices have a hardware chip like what was described above, and hence why they can play this
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high resolution content. So, the end result is that Thorium will play Widevine encrypted content on Linux, but at lower quality, but on Windows or MacOS
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it is highly dependent on the specific site. Your mileage may vary, and unless someone wants to send $7,000 on top of a yearly fee to be part of widevine.org's
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registered applications, Thorium will be restricted in this way (as are most FOSS Chromium and Firefox forks).
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__Q: Why is Thorium always behind Chromium/Chrome as far as the major release number?__
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A: Chromium/Chrome used to be on a 6 week release schedule, but then they moved to a 4 week release schedule. Rebasing Thorium is a long, hard, convoluted process
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that requires attention to detail and manual merging of files. I sometimes make mistakes that require correction before a release can be made. Very often, rebasing
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takes 8+ hours of focused, non-stop work. I do this for free (well I do get donations, that usually amount to ~$30 each month, but I would do it even without the
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donations. Donations are always welcome and appreciated), and it is not something I like doing more than necessary. Then comes actually building for all the platforms.
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Building Thorium takes alot of resources. The Chromium repository is 100+ GB in size, and compiling requires 8GB of free RAM or more. Compiling Thorium for Linux on
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my overclocked Ryzen 7 3800XT with 32GB RAM takes 5 hours. @gz83 helps with the Windows builds, and @midzer does the MacOS builds on his arm64 M1 Mac. Remember that
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we must build a total of 13 times to cover all the platforms and architectures that we support. This is a 3 person team, with me doing most of the coding work, feature
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additions, and rebasing. When Chromium makes a new major version, security fixes and bug fixes are backported from this new version into the previous version. This is why,
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for example, 122.0.6261.171 was released after 123.0.6312.133. This means that I always rebase against the previous major version, but use the latest minor version point
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releases. The result is a browser that is one major version behind, but very stable and usually as secure as the current major version. People keep complaining and get
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super worried that because they are using a browser that is one major version behind, that it is super insecure and they are immediately going to become a magnet attracting
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all sorts of malware and viruses. This simply isn't the case. The amount of people who post issues, discussions, and personal emails at me is getting annoying. It is like
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a child in the back seat asking "Are we there yet?" over and over. Asking a billion times is not going to speed up the process at all, and just leads to frustration on my part
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and a cluttering of the GitHub issues and discussions that are better filled with actual bugs. Of course, if there is ever a pertinent security flaw (like the WebP vulnerability
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or something privately relayed to me as per the [SECURITY.md](https://github.com/Alex313031/thorium/blob/main/SECURITY.md) file, I try my best to fix/update it and get releases out as soon as possible. Another thing that people keep
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suggesting is to use some kind of CI build service. This wouldn't help with the rebasing/development time, and because of the amount of resources needed to compile Thorium,
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there are no services that I am aware of that have a free tier with hardware capable of the compilation. Again, this comes down to money and is prohibitively expensive.
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__Q: Why isn't Thorium UnGoogled?__
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A: Thorium integrates many patches from UnGoogled Chromium (see [PATCHES.md](https://github.com/Alex313031/thorium/blob/main/infra/PATCHES.md)), but one of the project goals, as outlined towards the top of the Readme, is to enhance usability.
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A majority of people use Google search, and prefer to have Google Sync enabled to allow seamless synchronization of their bookmarks, history, and preferences across multiple
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instances of multiple Chromium-based browsers. Thus, while Thorium has removed telemetry and field trials, there are instances where Thorium still connects to Google servers, even
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if Google Sync is not enabled. A common example is for location services. However, the user has to explicitly consent for most of these, and the data that is still exchanged with
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Google without any user interaction is minimal, and contains no personally identifiable information (PII) that could be used to identify you. Thorium is open to taking requests for
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integration of patches that tweak the UI, enhance privacy or usability, or reduce the amount of data sent to Google. However, it will never be completely de-googled, and specifically
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removing Google Sync, Google search, or disallowing connections to any Google-owned domains is a no-go. If you desire this kind of functionality, I recommend using UnGoogled Chromium.
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If you feel that you are missing out since UnGoogled Chromium does not have the performance-enhancing compiler optimizations of Thorium, then one could compile it for themselves
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following the instructions [Here](https://github.com/ungoogled-software/ungoogled-chromium/blob/master/docs/building.md), and using the changes in Thorium's [//build directory](https://github.com/Alex313031/thorium/tree/main/src/build) as a starting point for adding the compiler optimizations to UnGoogled's build config. I am
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willing to provide guidance or help with compiling Chromium or integrating Thorium's compiler optimization patches to an existing source code checkout.
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@ -7,7 +7,7 @@ You __must__ place the .deb file (generated from running `package.sh`) in this d
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When it is done, you will have an appimage in *out*, I.E. it should be something like `//thorium/infra/APPIMAGE/out/Thorium_Browser-104.0.5107.0.glibc2.17-x86_64.AppImage`
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You can use it standalone, after making it executable with `sudo chmod +x Thorium_Browser-*`, or (*reccomended*) to integrate it with your system you can use [AppImageLauncher](https://github.com/TheAssassin/AppImageLauncher).
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You can use it standalone, after making it executable with `sudo chmod +x Thorium_Browser-*`, or (*recommended*) to integrate it with your system you can use [AppImageLauncher](https://github.com/TheAssassin/AppImageLauncher).
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- Running `./extract_appimage.sh` will extract the appimage contents to *out/Thorium_squashfs-root*
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- The *files* subdir contains files needed for the 22px and 512px icons, and a thorium-shell wrapper that allows thorium_shell to run properly in an AppImage.
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@ -2,7 +2,7 @@
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- This contains [*.gn files*](https://gn.googlesource.com/gn/) and scripts for generating DEBUG builds of Thorium for debugging, testing, and inspection.
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- The [ABOUT_GN_ARGS.md](https://github.com/Alex313031/thorium/blob/main/infra/DEBUG/ABOUT_GN_ARGS.md) describes what each line in the args *.gn files do, also useful for the regular build args *.gn files. \
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__NOTE:__ You cannot build installers for any platform with a debug build. Running the [clean.sh](https://github.com/Alex313031/thorium/blob/main/clean.sh) script in the root of the repo is highly reccomended to get your //out/thorium dir from ~6-7 GB to something reasonable, like ~1-2 GB.
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__NOTE:__ You cannot build installers for any platform with a debug build. Running the [clean.sh](https://github.com/Alex313031/thorium/blob/main/clean.sh) script in the root of the repo is highly recommended to get your //out/thorium dir from ~6-7 GB to something reasonable, like ~1-2 GB.
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- Running the `build_debug.sh` or `build_win_debug.sh` will build the *Thorium UI Debug Shell (views_examples_with_content)* target as well as the rest of Thorium.
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- Running `build_debug_shell.sh` can be used for any platform, and will build the standalone Thorium UI Debug Shell. \
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__NOTE:__ Running either of the above will make a directory in //out/thorium called Thorium_UI_Debug_Shell with all the artifacts and Readme inside, suitable for zipping up and distributing to users.
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18
setup.sh
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setup.sh
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@ -63,7 +63,23 @@ cd ~/thorium &&
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cp -r -v thorium-libjxl/src/. ${CR_SRC_DIR}/ &&
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# Copy Thorium sources
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cp -r -v src/. ${CR_SRC_DIR}/ &&
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cp -r -v src/BUILD.gn ${CR_SRC_DIR}/ &&
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cp -r -v src/ash ${CR_SRC_DIR}/ &&
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cp -r -v src/build ${CR_SRC_DIR}/ &&
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cp -r -v src/chrome ${CR_SRC_DIR}/ &&
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cp -r -v src/chromeos ${CR_SRC_DIR}/ &&
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cp -r -v src/components ${CR_SRC_DIR}/ &&
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cp -r -v src/content ${CR_SRC_DIR}/ &&
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cp -r -v src/extensions ${CR_SRC_DIR}/ &&
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cp -r -v src/media ${CR_SRC_DIR}/ &&
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cp -r -v src/net ${CR_SRC_DIR}/ &&
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cp -r -v src/sandbox ${CR_SRC_DIR}/ &&
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cp -r -v src/services ${CR_SRC_DIR}/ &&
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cp -r -v src/third_party ${CR_SRC_DIR}/ &&
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cp -r -v src/tools ${CR_SRC_DIR}/ &&
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cp -r -v src/ui ${CR_SRC_DIR}/ &&
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cp -r -v src/v8 ${CR_SRC_DIR}/ &&
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cp -r -v thorium_shell/. ${CR_SRC_DIR}/out/thorium/ &&
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cp -r -v pak_src/binaries/pak ${CR_SRC_DIR}/out/thorium/ &&
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cp -r -v pak_src/binaries/pak-win/. ${CR_SRC_DIR}/out/thorium/ &&
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