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Add Kugou lyrics source (closes #63)
Add Kugou lyrics source which can be selected from the lyrics search screen Add prefs option for default lyrics source
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shared/src/commonMain/kotlin/com/toasterofbread/spmp/api/lyrics/Kugou.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| package com.toasterofbread.spmp.api.lyrics | ||
|
|
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| import androidx.compose.ui.graphics.Color | ||
| import com.toasterofbread.spmp.api.cast | ||
| import com.toasterofbread.spmp.api.lyrics.kugou.loadKugouLyrics | ||
| import com.toasterofbread.spmp.api.lyrics.kugou.searchKugouLyrics | ||
| import com.toasterofbread.spmp.model.SongLyrics | ||
| import com.toasterofbread.spmp.resources.getString | ||
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|
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| internal class KugouLyricsSource(source_idx: Int): LyricsSource(source_idx) { | ||
| override fun getReadable(): String = getString("lyrics_source_kugou") | ||
| override fun getColour(): Color = Color(0xFF50A6FB) | ||
|
|
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| override suspend fun getLyrics(lyrics_id: String): Result<SongLyrics> { | ||
| val load_result = loadKugouLyrics(lyrics_id) | ||
| val lines = load_result.getOrNull() ?: return load_result.cast() | ||
|
|
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| return Result.success( | ||
| SongLyrics( | ||
| LyricsReference(lyrics_id, source_idx), | ||
| SongLyrics.SyncType.LINE_SYNC, | ||
| lines | ||
| ) | ||
| ) | ||
| } | ||
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| override suspend fun searchForLyrics(title: String, artist_name: String?): Result<List<SearchResult>> { | ||
| return searchKugouLyrics(title, artist_name) | ||
| } | ||
| } |
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146 changes: 146 additions & 0 deletions
146
shared/src/commonMain/kotlin/com/toasterofbread/spmp/api/lyrics/kugou/LoadKugouLyrics.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,146 @@ | ||
| package com.toasterofbread.spmp.api.lyrics.kugou | ||
|
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| import com.beust.klaxon.Klaxon | ||
| import com.toasterofbread.spmp.api.Api | ||
| import com.toasterofbread.spmp.api.lyrics.createTokeniser | ||
| import com.toasterofbread.spmp.api.lyrics.mergeAndFuriganiseTerms | ||
| import com.toasterofbread.spmp.model.SongLyrics | ||
| import kotlinx.coroutines.Dispatchers | ||
| import kotlinx.coroutines.withContext | ||
| import okhttp3.HttpUrl.Companion.toHttpUrl | ||
| import okhttp3.Request | ||
| import java.nio.charset.Charset | ||
| import java.util.Base64 | ||
|
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| private const val START_SKIP_LINES: Int = 4 | ||
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| suspend fun loadKugouLyrics(hash: String): Result<List<List<SongLyrics.Term>>> = | ||
| withContext(Dispatchers.IO) { kotlin.runCatching { | ||
| val request = Request.Builder() | ||
| .url( | ||
| "https://krcs.kugou.com/search" | ||
| .toHttpUrl().newBuilder() | ||
| .addQueryParameter("ver", "1") | ||
| .addQueryParameter("man", "yes") | ||
| .addQueryParameter("client", "mobi") | ||
| .addQueryParameter("hash", hash) | ||
| .build() | ||
| ) | ||
| .build() | ||
|
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| val response = Api.request(request, is_gzip = false).getOrThrow() | ||
| val search_response: KugouHashSearchResponse = response.body!!.charStream().use { stream -> | ||
| Klaxon().parse(stream)!! | ||
| } | ||
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| if (search_response.status != 200) { | ||
| return@withContext Result.failure(RuntimeException(search_response.errmsg)) | ||
| } | ||
|
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| val lyrics_data = downloadSearchCandidate(search_response.getBestCandidate()).getOrThrow() | ||
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| val reverse_lines: MutableList<SongLyrics.Term> = mutableListOf() | ||
| var previous_time: Long? = null | ||
|
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| for (line in lyrics_data.lines().asReversed()) { | ||
| if (line.length < 10 || line[0] != '[' || !line[1].isDigit()) { | ||
| continue | ||
| } | ||
|
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| val split = line.split(']', limit = 2) | ||
| val time = parseTimeString(split[0].substring(1)) | ||
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| reverse_lines.add( | ||
| SongLyrics.Term( | ||
| listOf(SongLyrics.Term.Text(split[1])), | ||
| -1, | ||
| start = time, | ||
| end = previous_time ?: Long.MAX_VALUE | ||
| ) | ||
| ) | ||
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| previous_time = time | ||
| } | ||
|
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| for (term in reverse_lines.withIndex()) { | ||
| term.value.line_index = reverse_lines.size - term.index - 1 | ||
| term.value.line_range = term.value.start!! .. term.value.end!! | ||
| } | ||
|
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| val tokeniser = createTokeniser() | ||
| return@runCatching reverse_lines.asReversed().mapIndexedNotNull { index, line -> | ||
| if (index < START_SKIP_LINES) null | ||
| else mergeAndFuriganiseTerms(tokeniser, listOf(line)) | ||
| } | ||
| }} | ||
|
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| private fun parseTimeString(string: String): Long { | ||
| var time: Long = 0L | ||
|
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| val split = string.split(':') | ||
| for (part in split.withIndex()) { | ||
| when (split.size - part.index - 1) { | ||
| // Seconds | ||
| 0 -> time += (part.value.toFloat() * 1000L).toLong() | ||
| // Minutes | ||
| 1 -> time += part.value.toLong() * 60000L | ||
| // Hours | ||
| 2 -> time += part.value.toLong() * 3600000L | ||
|
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| else -> throw NotImplementedError("Time stage not implemented: ${split.size - part.index - 1}") | ||
| } | ||
| } | ||
|
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| return time | ||
| } | ||
|
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| private suspend fun downloadSearchCandidate(candidate: KugouHashSearchResponse.Candidate): Result<String> = | ||
| withContext(Dispatchers.IO) { runCatching { | ||
| val request = Request.Builder() | ||
| .url( | ||
| "https://krcs.kugou.com/download" | ||
| .toHttpUrl().newBuilder() | ||
| .addQueryParameter("ver", "1") | ||
| .addQueryParameter("man", "yes") | ||
| .addQueryParameter("client", "pc") | ||
| .addQueryParameter("fmt", "lrc") | ||
| .addQueryParameter("id", candidate.id) | ||
| .addQueryParameter("accesskey", candidate.accesskey) | ||
| .build() | ||
| ) | ||
| .build() | ||
|
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| val result = Api.request(request) | ||
| val response = result.getOrThrow() | ||
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| val download_response: KugouSearchCandidateDownloadResponse = | ||
| response.body!!.charStream().use { stream -> | ||
| Klaxon().parse(stream)!! | ||
| } | ||
|
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| if (download_response.status != 200) { | ||
| return@withContext Result.failure(RuntimeException(download_response.info)) | ||
| } | ||
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| val bytes = Base64.getDecoder().decode(download_response.content) | ||
| return@runCatching String(bytes, Charset.forName(download_response.charset)) | ||
| } } | ||
|
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| private class KugouSearchCandidateDownloadResponse( | ||
| val status: Int, | ||
| val info: String, | ||
| val charset: String, | ||
| val content: String | ||
| ) | ||
|
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| private class KugouHashSearchResponse( | ||
| val status: Int, | ||
| val errmsg: String, | ||
| val candidates: List<Candidate> | ||
| ) { | ||
| class Candidate( | ||
| val id: String, | ||
| val accesskey: String | ||
| ) | ||
| fun getBestCandidate(): Candidate = candidates.first() | ||
| } |
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