40 lines
2.7 KiB
TypeScript
40 lines
2.7 KiB
TypeScript
import {z} from "zod"
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import {ApiClientError,requestBlob,requestJson} from "@/shared/api/http-client"
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const MAX_RESTORE_BYTES=512*1024*1024
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const magic=[80,71,68,77,80]
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const receiptSchema=z.object({ok:z.literal(true),eventError:z.string().min(1).optional(),listenerError:z.string().min(1).optional(),schedulerError:z.string().min(1).optional()}).strict()
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export type SystemDatabaseRestoreReceipt=z.output<typeof receiptSchema>
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type Options={signal?:AbortSignal}
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const signal=(options?:Options)=>options?.signal?AbortSignal.any([options.signal,AbortSignal.timeout(600_000)]):AbortSignal.timeout(600_000)
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function parseFilename(value:string|null):string{
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let name="mikrotik-manager.dump"
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if(value){
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const utf=/filename\*=UTF-8''([^;]+)/i.exec(value)
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const plain=/filename=(?:"([^"]+)"|([^;]+))/i.exec(value)
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try{name=utf?.[1]?decodeURIComponent(utf[1]):(plain?.[1]??plain?.[2]??name).trim()}catch{throw new Error("Имя файла бэкапа не подтверждено")}
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}
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if(!name||/[\\/\r\n\x00]/.test(name)||name==="."||name==="..")throw new Error("Имя файла бэкапа не подтверждено")
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return name
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}
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async function confirmDump(blob:Blob):Promise<void>{
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if(blob.size<magic.length)throw new Error("Файл не похож на резервную копию PostgreSQL (PGDMP)")
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const head=new Uint8Array(await blob.slice(0,magic.length).arrayBuffer())
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if(!magic.every((value,index)=>head[index]===value))throw new Error("Файл не похож на резервную копию PostgreSQL (PGDMP)")
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}
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export async function downloadSystemDatabaseBackup(baseUrl:string,options?:Options):Promise<{blob:Blob;filename:string}>{
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const activeSignal=signal(options)
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const response=await requestBlob(baseUrl,"/api/system/database/backup",{signal:activeSignal})
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const blob=await response.blob()
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await confirmDump(blob);activeSignal.throwIfAborted()
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return {blob,filename:parseFilename(response.headers.get("Content-Disposition"))}
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}
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export async function restoreSystemDatabaseBackup(baseUrl:string,file:File,options?:Options):Promise<SystemDatabaseRestoreReceipt>{
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if(file.size>MAX_RESTORE_BYTES)throw new ApiClientError("Файл больше 512 МБ — уменьшите бэкап или обратитесь к администратору",413)
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const activeSignal=signal(options);activeSignal.throwIfAborted()
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await confirmDump(file);activeSignal.throwIfAborted()
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const raw=await requestJson<unknown>(baseUrl,"/api/system/database/restore",{method:"POST",headers:{"Content-Type":"application/octet-stream"},body:file,signal:activeSignal})
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const receipt=receiptSchema.safeParse(raw)
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if(!receipt.success)throw new Error("Восстановление базы не подтверждено сервером")
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return receipt.data
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}
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