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Feat: Add checksums tab for file properties
Fixes: zhanghai#48
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29 changes: 29 additions & 0 deletions
29
app/src/main/java/me/zhanghai/android/files/fileproperties/checksum/ChecksumInfo.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| /* | ||
| * Copyright (c) 2024 Hai Zhang <dreaming.in.code.zh@gmail.com> | ||
| * All Rights Reserved. | ||
| */ | ||
|
|
||
| package me.zhanghai.android.files.fileproperties.checksum | ||
|
|
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| import androidx.annotation.StringRes | ||
| import me.zhanghai.android.files.R | ||
| import java.security.MessageDigest | ||
|
|
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| class ChecksumInfo(val checksums: Map<Algorithm, String>) { | ||
| enum class Algorithm(@StringRes val nameRes: Int) { | ||
| CRC32(R.string.file_properties_checksum_crc32), | ||
| MD5(R.string.file_properties_checksum_md5), | ||
| SHA1(R.string.file_properties_checksum_sha_1), | ||
| SHA256(R.string.file_properties_checksum_sha_256), | ||
| SHA512(R.string.file_properties_checksum_sha_512); | ||
|
|
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| fun createMessageDigest(): MessageDigest = | ||
| when (this) { | ||
| CRC32 -> Crc32MessageDigest() | ||
| MD5 -> MessageDigest.getInstance("MD5") | ||
| SHA1 -> MessageDigest.getInstance("SHA-1") | ||
| SHA256 -> MessageDigest.getInstance("SHA-256") | ||
| SHA512 -> MessageDigest.getInstance("SHA-512") | ||
| } | ||
| } | ||
| } |
51 changes: 51 additions & 0 deletions
51
app/src/main/java/me/zhanghai/android/files/fileproperties/checksum/ChecksumInfoLiveData.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| /* | ||
| * Copyright (c) 2024 Hai Zhang <dreaming.in.code.zh@gmail.com> | ||
| * All Rights Reserved. | ||
| */ | ||
|
|
||
| package me.zhanghai.android.files.fileproperties.checksum | ||
|
|
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| import android.os.AsyncTask | ||
| import java8.nio.file.Path | ||
| import me.zhanghai.android.files.fileproperties.PathObserverLiveData | ||
| import me.zhanghai.android.files.provider.common.newInputStream | ||
| import me.zhanghai.android.files.util.Failure | ||
| import me.zhanghai.android.files.util.Loading | ||
| import me.zhanghai.android.files.util.Stateful | ||
| import me.zhanghai.android.files.util.Success | ||
| import me.zhanghai.android.files.util.toHexString | ||
| import me.zhanghai.android.files.util.valueCompat | ||
|
|
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| class ChecksumInfoLiveData(path: Path) : PathObserverLiveData<Stateful<ChecksumInfo>>(path) { | ||
| init { | ||
| loadValue() | ||
| observe() | ||
| } | ||
|
|
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| override fun loadValue() { | ||
| value = Loading(value?.value) | ||
| AsyncTask.THREAD_POOL_EXECUTOR.execute { | ||
| val value = try { | ||
| val messageDigests = | ||
| ChecksumInfo.Algorithm.entries.associateWith { it.createMessageDigest() } | ||
| path.newInputStream().use { inputStream -> | ||
| val buffer = ByteArray(DEFAULT_BUFFER_SIZE) | ||
| while (true) { | ||
| val readSize = inputStream.read(buffer) | ||
| if (readSize == -1) { | ||
| break | ||
| } | ||
| messageDigests.values.forEach { it.update(buffer, 0, readSize) } | ||
| } | ||
| } | ||
| val checksumInfo = ChecksumInfo( | ||
| messageDigests.mapValues { it.value.digest().toHexString() } | ||
| ) | ||
| Success(checksumInfo) | ||
| } catch (e: Exception) { | ||
| Failure(valueCompat.value, e) | ||
| } | ||
| postValue(value) | ||
| } | ||
| } | ||
| } |
36 changes: 36 additions & 0 deletions
36
app/src/main/java/me/zhanghai/android/files/fileproperties/checksum/Crc32MessageDigest.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| /* | ||
| * Copyright (c) 2024 Hai Zhang <dreaming.in.code.zh@gmail.com> | ||
| * All Rights Reserved. | ||
| */ | ||
|
|
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| package me.zhanghai.android.files.fileproperties.checksum | ||
|
|
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| import java.security.MessageDigest | ||
| import java.util.zip.CRC32 | ||
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| class Crc32MessageDigest : MessageDigest("CRC32") { | ||
| private val crc32 = CRC32() | ||
|
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| override fun engineUpdate(input: Byte) { | ||
| crc32.update(input.toInt()) | ||
| } | ||
|
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| override fun engineUpdate(input: ByteArray, offset: Int, length: Int) { | ||
| crc32.update(input, offset, length) | ||
| } | ||
|
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| override fun engineDigest(): ByteArray { | ||
| val value = crc32.value | ||
| crc32.reset() | ||
| return ByteArray(4).apply { | ||
| this[0] = (value ushr 24).toByte() | ||
| this[1] = (value ushr 16).toByte() | ||
| this[2] = (value ushr 8).toByte() | ||
| this[3] = value.toByte() | ||
| } | ||
| } | ||
|
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| override fun engineReset() { | ||
| crc32.reset() | ||
| } | ||
| } |
92 changes: 92 additions & 0 deletions
92
...va/me/zhanghai/android/files/fileproperties/checksum/FilePropertiesChecksumTabFragment.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| /* | ||
| * Copyright (c) 2024 Hai Zhang <dreaming.in.code.zh@gmail.com> | ||
| * All Rights Reserved. | ||
| */ | ||
|
|
||
| package me.zhanghai.android.files.fileproperties.checksum | ||
|
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| import androidx.core.widget.doAfterTextChanged | ||
| import java8.nio.file.Path | ||
| import kotlinx.parcelize.Parcelize | ||
| import kotlinx.parcelize.WriteWith | ||
| import me.zhanghai.android.files.R | ||
| import me.zhanghai.android.files.databinding.FilePropertiesChecksumCompareItemBinding | ||
| import me.zhanghai.android.files.file.FileItem | ||
| import me.zhanghai.android.files.fileproperties.FilePropertiesTabFragment | ||
| import me.zhanghai.android.files.util.ParcelableArgs | ||
| import me.zhanghai.android.files.util.ParcelableParceler | ||
| import me.zhanghai.android.files.util.Stateful | ||
| import me.zhanghai.android.files.util.args | ||
| import me.zhanghai.android.files.util.layoutInflater | ||
| import me.zhanghai.android.files.util.viewModels | ||
|
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| class FilePropertiesChecksumTabFragment : FilePropertiesTabFragment() { | ||
| private val args by args<Args>() | ||
|
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| private val viewModel by viewModels { { FilePropertiesChecksumTabViewModel(args.path) } } | ||
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| override fun onResume() { | ||
| super.onResume() | ||
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| viewModel.checksumInfoLiveData.observe(viewLifecycleOwner) { onChecksumInfoChanged(it) } | ||
| } | ||
|
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| override fun refresh() { | ||
| viewModel.reload() | ||
| } | ||
|
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| private fun onChecksumInfoChanged(stateful: Stateful<ChecksumInfo>) { | ||
| bindView(stateful) { checksumInfo -> | ||
| checksumInfo.checksums.forEach { addItemView(it.key.nameRes, it.value) } | ||
| addCompareEdit(checksumInfo) | ||
| } | ||
| } | ||
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| private fun ViewBuilder.addCompareEdit(checksumInfo: ChecksumInfo) { | ||
| val binding = getScrapItemBinding(FilePropertiesChecksumCompareItemBinding::class.java) | ||
| ?.also { addView(it) } | ||
| ?: FilePropertiesChecksumCompareItemBinding.inflate( | ||
| linearLayout.context.layoutInflater, linearLayout, true | ||
| ) | ||
| .also { it.root.tag = it } | ||
| binding.compareEdit.doAfterTextChanged { editable -> | ||
| val text = editable!!.toString().trim() | ||
| if (text.isEmpty()) { | ||
| binding.compareLayout.helperText = null | ||
| binding.compareLayout.error = null | ||
| return@doAfterTextChanged | ||
| } | ||
| val matchingAlgorithm = checksumInfo.checksums.firstNotNullOfOrNull { | ||
| if (it.value.equals(text, true)) it.key else null | ||
| } | ||
| if (matchingAlgorithm != null) { | ||
| binding.compareLayout.helperText = | ||
| getString( | ||
| R.string.file_properties_checksum_compare_match_format, | ||
| getString(matchingAlgorithm.nameRes) | ||
| ) | ||
| return@doAfterTextChanged | ||
| } | ||
| val prefixMatchingAlgorithm = checksumInfo.checksums.firstNotNullOfOrNull { | ||
| if (it.value.startsWith(text, true)) it.key else null | ||
| } | ||
| if (prefixMatchingAlgorithm != null) { | ||
| binding.compareLayout.helperText = | ||
| getString( | ||
| R.string.file_properties_checksum_compare_prefix_match_format, | ||
| getString(prefixMatchingAlgorithm.nameRes) | ||
| ) | ||
| return@doAfterTextChanged | ||
| } | ||
| binding.compareLayout.error = | ||
| getString(R.string.file_properties_checksum_compare_no_match) | ||
| } | ||
| } | ||
|
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| companion object { | ||
| fun isAvailable(file: FileItem): Boolean = file.attributes.isRegularFile | ||
| } | ||
|
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| @Parcelize | ||
| class Args(val path: @WriteWith<ParcelableParceler> Path) : ParcelableArgs | ||
| } |
25 changes: 25 additions & 0 deletions
25
...a/me/zhanghai/android/files/fileproperties/checksum/FilePropertiesChecksumTabViewModel.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| /* | ||
| * Copyright (c) 2024 Hai Zhang <dreaming.in.code.zh@gmail.com> | ||
| * All Rights Reserved. | ||
| */ | ||
|
|
||
| package me.zhanghai.android.files.fileproperties.checksum | ||
|
|
||
| import androidx.lifecycle.LiveData | ||
| import androidx.lifecycle.ViewModel | ||
| import java8.nio.file.Path | ||
| import me.zhanghai.android.files.util.Stateful | ||
|
|
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| class FilePropertiesChecksumTabViewModel(path: Path) : ViewModel() { | ||
| private val _checksumInfoLiveData = ChecksumInfoLiveData(path) | ||
| val checksumInfoLiveData: LiveData<Stateful<ChecksumInfo>> | ||
| get() = _checksumInfoLiveData | ||
|
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| fun reload() { | ||
| _checksumInfoLiveData.loadValue() | ||
| } | ||
|
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| override fun onCleared() { | ||
| _checksumInfoLiveData.close() | ||
| } | ||
| } |
25 changes: 25 additions & 0 deletions
25
app/src/main/res/layout/file_properties_checksum_compare_item.xml
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| <?xml version="1.0" encoding="utf-8"?> | ||
|
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| <!-- | ||
| ~ Copyright (c) 2024 Hai Zhang <dreaming.in.code.zh@gmail.com> | ||
| ~ All Rights Reserved. | ||
| --> | ||
|
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| <com.google.android.material.textfield.TextInputLayout | ||
| xmlns:android="http://schemas.android.com/apk/res/android" | ||
| xmlns:app="http://schemas.android.com/apk/res-auto" | ||
| android:id="@+id/compareLayout" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="wrap_content" | ||
| android:hint="@string/file_properties_checksum_compare" | ||
| app:errorEnabled="true" | ||
| app:expandedHintEnabled="false" | ||
| app:placeholderText="@string/file_properties_checksum_compare_placeholder"> | ||
|
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| <com.google.android.material.textfield.TextInputEditText | ||
| android:id="@+id/compareEdit" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="wrap_content" | ||
| android:importantForAutofill="no" | ||
| android:inputType="textMultiLine" /> | ||
| </com.google.android.material.textfield.TextInputLayout> |
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