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Functioning backup export for iOS and Android
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| import { Share } from 'react-native'; | ||
| import Storage from '@SFJS/storageManager' | ||
| import Auth from '@SFJS/authManager' | ||
| import KeysManager from '@Lib/keysManager' | ||
| import AlertManager from "@SFJS/alertManager"; | ||
| import UserPrefsManager from '@Lib/userPrefsManager' | ||
| import ModelManager from '@SFJS/modelManager' | ||
| import ApplicationState from "@Lib/ApplicationState" | ||
| import RNFS from 'react-native-fs'; | ||
| import FileViewer from 'react-native-file-viewer'; | ||
| const base64 = require('base-64'); | ||
|
|
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| export default class BackupsManager { | ||
|
|
||
| static instance = null; | ||
| static get() { | ||
| if(this.instance == null) { | ||
| this.instance = new BackupsManager(); | ||
| } | ||
| return this.instance; | ||
| } | ||
|
|
||
| /* | ||
| On iOS, we can use Share to share a file of arbitrary length. | ||
| This doesn't work on Android however. Seems to have a very low limit. | ||
| For Android, we'll use RNFS to save the file to disk, then FileViewer to | ||
| ask the user what application they would like to open the file with. | ||
| For .txt files, not many applications handle it. So, we'll want to notify the user | ||
| the path the file was saved to. | ||
| */ | ||
|
|
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| async export(encrypted) { | ||
| var auth_params = await Auth.get().getAuthParams(); | ||
| var keys = encrypted ? KeysManager.get().activeKeys() : null; | ||
|
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| var items = []; | ||
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| for(var item of ModelManager.get().allItems) { | ||
| var itemParams = new SFItemParams(item, keys, auth_params); | ||
| var params = await itemParams.paramsForExportFile(); | ||
| items.push(params); | ||
| } | ||
|
|
||
| if(items.length == 0) { | ||
| Alert.alert('No Data', "You don't have any notes yet."); | ||
| return false; | ||
| } | ||
|
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| var data = {items: items} | ||
|
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| if(keys) { | ||
| var authParams = KeysManager.get().activeAuthParams(); | ||
| // auth params are only needed when encrypted with a standard file key | ||
| data["auth_params"] = authParams; | ||
| } | ||
|
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| var jsonString = JSON.stringify(data, null, 2 /* pretty print */); | ||
| let modifier = encrypted ? "Encrypted" : "Decrypted"; | ||
| let filename = `Standard Notes ${modifier} Backup - ${this._formattedDate()}.txt`; | ||
|
|
||
| if(ApplicationState.isIOS) { | ||
| return this._exportIOS(filename, jsonString); | ||
| } else { | ||
| let filepath = await this._exportAndroid(filename, jsonString); | ||
| return this._showFileSavePromptAndroid(filepath); | ||
| } | ||
| } | ||
|
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||
| async _exportIOS(filename, data) { | ||
| return new Promise((resolve, reject) => { | ||
| ApplicationState.get().performActionWithoutStateChangeImpact(async () => { | ||
| Share.share({ | ||
| title: filename, | ||
| message: data, | ||
| }).then((result) => { | ||
| resolve(result != Share.dismissedAction); | ||
| }).catch((error) => { | ||
| resolve(false); | ||
| }) | ||
| }) | ||
| }) | ||
| } | ||
|
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| async _exportAndroid(filename, data) { | ||
| let filepath = `${RNFS.DocumentDirectoryPath}/${filename}`; | ||
| return RNFS.writeFile(filepath, data).then(() => { | ||
| return filepath; | ||
| }) | ||
| } | ||
|
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||
| async _openFileAndroid(filepath) { | ||
| return FileViewer.open(filepath).then(() => { | ||
| // success | ||
| return true; | ||
| }).catch(error => { | ||
| console.log("Error opening file", error); | ||
| return false; | ||
| }); | ||
| } | ||
|
|
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| async _showFileSavePromptAndroid(filepath) { | ||
| return AlertManager.get().confirm({ | ||
| title: "Backup Saved", | ||
| text: `Your backup file has been saved to your local disk at this location:\n\n${filepath}`, | ||
| cancelButtonText: "Done", | ||
| confirmButtonText: "Open File", | ||
| onConfirm: () => { | ||
| this._openFileAndroid(filepath); | ||
| } | ||
| }).then(() => { | ||
| return true; | ||
| }).catch(() => { | ||
| // Did Cancel, still success | ||
| return true; | ||
| }) | ||
| } | ||
|
|
||
| /* Utils */ | ||
|
|
||
| _formattedDate() { | ||
| return new Date().getTime(); | ||
| } | ||
| } |
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