name: Magisk

on:
  push:
  pull_request:
  workflow_dispatch:
    inputs:
      magisk_apk:
        description: 'Download link to magisk apk.'
        required: true
        default: 'https://raw.githubusercontent.com/LSPosed/MagiskOnWSA/main/magisk.apk'
      gapps_variant:
        description: 'Variants of gapps. Should be: [none, aroma, super, stock, full, mini, micro, nano, pico, tvstock, tvmini]'
        required: true
        default: 'none'

jobs:
  build:
    runs-on: ubuntu-20.04
    strategy:
      matrix:
        arch: [x64, arm64]
    steps:
      - name: Dependencies
        run: |
          pip3 install beautifulsoup4 lxml
          sudo apt-get update && sudo apt-get install setools lzip
      - name: Download AWS
        shell: python
        run: |
          import requests
          from bs4 import BeautifulSoup
          import re
          import zipfile
          import os
          import urllib.request

          res = requests.post("https://store.rg-adguard.net/api/GetFiles", "type=CategoryId&url=858014f3-3934-4abe-8078-4aa193e74ca8&ring=WIS&lang=en-US", headers={
              "content-type": "application/x-www-form-urlencoded"
          })
          html = BeautifulSoup(res.content, "lxml")
          a = html.find("a", string=re.compile("MicrosoftCorporationII\.WindowsSubsystemForAndroid_.*\.msixbundle"))
          link = a["href"]

          print(f"downloading link: {link}", flush=True)

          out_file = "wsa.zip"

          arch = "${{ matrix.arch }}"

          if not os.path.isfile(out_file):
              urllib.request.urlretrieve(link, out_file)

          zip_name = ""
          with zipfile.ZipFile(out_file) as zip:
              for f in zip.filelist:
                  if arch in f.filename.lower():
                      zip_name = f.filename
                      if not os.path.isfile(zip_name):
                          print(f"unzipping to {zip_name}", flush=True)
                          zip.extract(f)
                      break

          with zipfile.ZipFile(zip_name) as zip:
              if not os.path.isdir(arch):
                  print(f"unzipping from {zip_name}", flush=True)
                  zip.extractall(arch)
          print("done", flush=True)
      - name: Download Magisk
        shell: python
        run: |
          import urllib.request
          import zipfile
          import os

          magisk_apk = """${{ github.event.inputs.magisk_apk }}"""

          if not magisk_apk:
              magisk_apk = """https://raw.githubusercontent.com/LSPosed/MagiskOnWSA/main/magisk.apk"""

          out_file = "magisk.zip"

          arch = "${{ matrix.arch }}"

          abi_map={"x64" : ["x86_64", "x86"], "arm64" : ["arm64-v8a", "armeabi-v7a"]}

          if not os.path.isfile(out_file):
              urllib.request.urlretrieve(magisk_apk, out_file)

          def extract_as(zip, name, as_name, dir):
              info = zip.getinfo(name)
              info.filename = as_name
              zip.extract(info, dir)

          with zipfile.ZipFile(out_file) as zip:
              extract_as(zip, f"lib/{ abi_map[arch][0] }/libmagisk64.so", "magisk64", "magisk")
              extract_as(zip, f"lib/{ abi_map[arch][1] }/libmagisk32.so", "magisk32", "magisk")
              extract_as(zip, f"lib/{ abi_map[arch][0] }/libmagiskinit.so", "magiskinit", "magisk")
              extract_as(zip, f"lib/{ abi_map['x64'][0] }/libmagiskinit.so", "magiskpolicy", "magisk")
      - name: Download OpenGApps
        if: ${{ github.event.inputs.gapps_variant != 'none' && github.event.inputs.gapps_variant != '' }}
        shell: python
        run: |
          import requests
          import zipfile
          import os
          import urllib.request
          import json

          arch = "${{ matrix.arch }}"
          variant = "${{ github.event.inputs.gapps_variant }}"
          abi_map = {"x64" : "x86_64", "arm64": "arm64"}

          res = requests.get(f"https://api.opengapps.org/list")

          j = json.loads(res.content)

          link = {i["name"]: i for i in j["archs"][abi_map[arch]]["apis"]["11.0"]["variants"]}[variant]["zip"]

          print(f"downloading link: {link}", flush=True)

          out_file = "gapps.zip"

          if not os.path.isfile(out_file):
              urllib.request.urlretrieve(link, out_file)
          print("done", flush=True)

      - name: Extract GApps and expand images
        if: ${{ github.event.inputs.gapps_variant != 'none' && github.event.inputs.gapps_variant != '' }}
        run: |
          mkdir gapps
          unzip -p gapps.zip {Core,GApps}/'*.lz' | tar --lzip -C gapps -xvf - -i --strip-components=2 --exclude='setupwizardtablet-x86_64' --exclude='packageinstallergoogle-all' --exclude='speech-common' --exclude='markup-lib-arm' --exclude='markup-all'

          e2fsck -yf ${{ matrix.arch }}/system.img
          resize2fs ${{ matrix.arch }}/system.img $(( $(du -sB512 gapps | cut -f1) + $(du -sB512 ${{ matrix.arch }}/system.img | cut -f1) ))s
          e2fsck -yf ${{ matrix.arch }}/product.img
          resize2fs ${{ matrix.arch }}/product.img 1024M
          e2fsck -yf ${{ matrix.arch }}/system_ext.img
          resize2fs ${{ matrix.arch }}/system_ext.img 108M
      - name: Expand vendor
        run: |
          e2fsck -yf ${{ matrix.arch }}/vendor.img
          resize2fs ${{ matrix.arch }}/vendor.img 320M
      - name: Mount images
        run: |
          sudo mkdir system
          sudo mount -o loop ${{ matrix.arch }}/system.img system
          sudo mount -o loop ${{ matrix.arch }}/vendor.img system/vendor
          sudo mount -o loop ${{ matrix.arch }}/product.img system/product
          sudo mount -o loop ${{ matrix.arch }}/system_ext.img system/system_ext
      - name: Integrate Magisk
        run: |
          sudo mkdir system/sbin
          sudo chcon --reference system/init.environ.rc system/sbin
          sudo chown root:root system/sbin
          sudo chmod 0700 system/sbin
          sudo cp magisk/* system/sbin/
          sudo find system/sbin -type f -exec chmod 0755 {} \;
          sudo find system/sbin -type f -exec chown root:root {} \;
          sudo find system/sbin -type f -exec chcon --reference system/product {} \;
          chmod +x magisk/magiskpolicy
          echo '/dev/wsa-magisk(/.*)?    u:object_r:magisk_file:s0' | sudo tee -a system/vendor/etc/selinux/vendor_file_contexts
          sudo ./magisk/magiskpolicy --load system/vendor/etc/selinux/precompiled_sepolicy --save system/vendor/etc/selinux/precompiled_sepolicy --magisk "allow * magisk_file lnk_file *"
          sudo tee -a system/system/etc/init/hw/init.rc <<EOF

          on post-fs-data
              start logd
              start adbd
              mkdir /dev/wsa-magisk
              mount tmpfs tmpfs /dev/wsa-magisk mode=0755
              copy /sbin/magisk64 /dev/wsa-magisk/magisk64
              chmod 0755 /dev/wsa-magisk/magisk64
              symlink ./magisk64 /dev/wsa-magisk/magisk
              symlink ./magisk64 /dev/wsa-magisk/su
              symlink ./magisk64 /dev/wsa-magisk/resetprop
              copy /sbin/magisk32 /dev/wsa-magisk/magisk32
              chmod 0755 /dev/wsa-magisk/magisk32
              copy /sbin/magiskinit /dev/wsa-magisk/magiskinit
              chmod 0755 /dev/wsa-magisk/magiskinit
              symlink ./magiskinit /dev/wsa-magisk/magiskpolicy
              mkdir /dev/wsa-magisk/.magisk 700
              mkdir /dev/wsa-magisk/.magisk/mirror 700
              mkdir /dev/wsa-magisk/.magisk/block 700
              rm /dev/.magisk_unblock
              start FAhW7H9G5sf
              wait /dev/.magisk_unblock 40
              rm /dev/.magisk_unblock

          service FAhW7H9G5sf /dev/wsa-magisk/magisk --post-fs-data
              user root
              seclabel u:r:magisk:s0
              oneshot

          service HLiFsR1HtIXVN6 /dev/wsa-magisk/magisk --service
              class late_start
              user root
              seclabel u:r:magisk:s0
              oneshot

          on property:sys.boot_completed=1
              start YqCTLTppv3ML

          service YqCTLTppv3ML /dev/wsa-magisk/magisk --boot-complete
              user root
              seclabel u:r:magisk:s0
              oneshot
          EOF
      - name: Integrate GApps
        if: ${{ github.event.inputs.gapps_variant != 'none' && github.event.inputs.gapps_variant != '' }}
        run: |
          sudo cp -r gapps/{app,etc,framework,priv-app} system/system
          sudo cp -r gapps/product/* system/product/

          sudo find system/system/{app,etc,framework,priv-app} -exec chown root:root {} \;
          sudo find system/product/{app,etc,overlay,priv-app} -exec chown root:root {} \;

          sudo find system/system/{app,etc,framework,priv-app} -type d -exec chmod 0755 {} \;
          sudo find system/product/{app,etc,overlay,priv-app} -type d -exec chmod 0755 {} \;

          sudo find system/system/{app,framework,priv-app} -type f -exec chmod 0644 {} \;
          sudo find system/system/etc/{permissions,default-permissions,preferred-apps,sysconfig} -type f -exec chmod 0644 {} \;
          sudo find system/product/{app,etc,overlay,priv-app} -type f -exec chmod 0644 {} \;

          sudo find system/system/{app,framework,priv-app} -type d -exec chcon --reference=system/system/app {} \;
          sudo find system/product/{app,etc,overlay,priv-app} -type d -exec chcon --reference=system/product/app {} \;
          sudo find system/system/etc/{permissions,default-permissions,preferred-apps,sysconfig} -type d -exec chcon --reference=system/system/etc/permissions {} \;

          sudo find system/system/{app,framework,priv-app} -type f -exec chcon --reference=system/system/framework/ext.jar {} \;
          sudo find system/system/etc/{permissions,default-permissions,preferred-apps,sysconfig} -type f -exec chcon --reference=system/system/etc/permissions {} \;
          sudo find system/product/{app,etc,overlay,priv-app} -type f -exec chcon --reference=system/product/etc/permissions/privapp-permissions-venezia.xml {} \;

          sudo ./magisk/magiskpolicy --load system/vendor/etc/selinux/precompiled_sepolicy --save system/vendor/etc/selinux/precompiled_sepolicy "allow gmscore_app gmscore_app vsock_socket { create connect write read }" "allow gmscore_app device_config_runtime_native_boot_prop file read"
      - name: Fix GApps prop
        if: ${{ github.event.inputs.gapps_variant != 'none' && github.event.inputs.gapps_variant != '' }}
        shell: sudo python {0}
        run: |
          from __future__ import annotations
          from io import TextIOWrapper
          from os import system
          from typing import OrderedDict


          class Prop(OrderedDict):
              def __init__(self, file: TextIOWrapper) -> None:
                  super().__init__()
                  for i, line in enumerate(file.read().splitlines(False)):
                      if '=' in line:
                          k, v = line.split('=', 2)
                          self[k] = v
                      else:
                          self[f".{i}"] = line

              def __str__(self) -> str:
                  return '\n'.join([v if k.startswith('.') else f"{k}={v}" for k, v in self.items()])

              def __iadd__(self, other: str) -> Prop:
                  self[f".{len(self)}"] = other
                  return self


          new_props = {
              ("product", "brand"): "google",
              ("product", "manufacturer"): "Google",
              ("build", "product"): "redfin",
              ("product", "name"): "redfin",
              ("product", "device"): "redfin",
              ("product", "model"): "Pixel 5",
              ("build", "flavor"): "redfin-user"
          }


          def description(sec: str, p: Prop) -> str:
              return f"{p[f'ro.{sec}.build.flavor']} {p[f'ro.{sec}.build.version.release_or_codename']} {p[f'ro.{sec}.build.id']} {p[f'ro.{sec}.build.version.incremental']} {p[f'ro.{sec}.build.tags']}"


          def fingerprint(sec: str, p: Prop) -> str:
              return f"""{p[f"ro.product.{sec}.brand"]}/{p[f"ro.product.{sec}.name"]}/{p[f"ro.product.{sec}.device"]}:{p[f"ro.{sec}.build.version.release"]}/{p[f"ro.{sec}.build.id"]}/{p[f"ro.{sec}.build.version.incremental"]}:{p[f"ro.{sec}.build.type"]}/{p[f"ro.{sec}.build.tags"]}"""


          def fix_prop(sec, prop):
              print(f"fixing {prop}", flush=True)
              with open(prop, 'r') as f:
                  p = Prop(f)

              p += "# extra prop added by MagiskOnWSA"

              for k, v in new_props.items():
                  p[f"ro.{k[0]}.{k[1]}"] = v
                  
                  if k[0] == "build":
                      p[f"ro.{sec}.{k[0]}.{k[1]}"] = v
                  elif k[0] == "product":
                      p[f"ro.{k[0]}.{sec}.{k[1]}"] = v

              p["ro.build.description"] = description(sec, p)
              p[f"ro.build.fingerprint"] = fingerprint(sec, p)
              p[f"ro.{sec}.build.description"] = description(sec, p)
              p[f"ro.{sec}.build.fingerprint"] = fingerprint(sec, p)
              p[f"ro.bootimage.build.fingerprint"] = fingerprint(sec, p)

              with open(prop, 'w') as f:
                  f.write(str(p))

          for sec, prop in {"system": "system/system/build.prop", "product": "system/product/build.prop", "system_ext": "system/system_ext/build.prop", "vendor": "system/vendor/build.prop", "odm": "system/vendor/odm/etc/build.prop"}.items():
              fix_prop(sec, prop)
      - name: Umount images
        run: |
          sudo umount system/vendor
          sudo umount system/product
          sudo umount system/system_ext
          sudo umount system
      - name: Shrink images
        run: |
          e2fsck -yf ${{ matrix.arch }}/system.img
          resize2fs -M ${{ matrix.arch }}/system.img
          e2fsck -yf ${{ matrix.arch }}/vendor.img
          resize2fs -M ${{ matrix.arch }}/vendor.img
          e2fsck -yf ${{ matrix.arch }}/product.img
          resize2fs -M ${{ matrix.arch }}/product.img
          e2fsck -yf ${{ matrix.arch }}/system_ext.img
          resize2fs -M ${{ matrix.arch }}/system_ext.img
      - name: Remove signature
        run: |
          rm -rf ${{ matrix.arch }}/\[Content_Types\].xml ${{ matrix.arch }}/AppxBlockMap.xml ${{ matrix.arch }}/AppxSignature.p7x ${{ matrix.arch }}/AppxMetadata
      - name: Generate artifact name
        run: |
          variant="${{ github.event.inputs.gapps_variant }}"
          if [[ "$variant" = "none" || "$variant" = "" ]]; then
            echo "artifact_name=WSA-with-Magisk-NoGApps_${{ matrix.arch }}" >> $GITHUB_ENV
          else
            echo "artifact_name=WSA-with-Magisk-GApps-${variant}_${{ matrix.arch }}" >> $GITHUB_ENV
          fi
      - name: Upload WSA
        uses: actions/upload-artifact@v2
        with:
          name: ${{ env.artifact_name }}
          path: './${{ matrix.arch }}/*'