| 1 | /* |
| 2 | * @Author: nevin |
| 3 | * @Date: 2022-03-03 16:59:23 |
| 4 | * @LastEditors: nevin |
| 5 | * @LastEditTime: 2025-02-25 23:11:01 |
| 6 | * @Description: oss函数 |
| 7 | */ |
| 8 | import { Injectable, Inject, HttpStatus } from '@nestjs/common'; |
| 9 | import { ConfigService } from '@nestjs/config'; |
| 10 | import OSS from 'ali-oss'; |
| 11 | import * as moment from 'moment'; |
| 12 | import { Duplex } from 'stream'; |
| 13 | import { v4 as uuidv4 } from 'uuid'; |
| 14 | import { OssNewFilePath } from './oss.interface'; |
| 15 | import axios from 'axios'; |
| 16 | @Injectable() |
| 17 | export class OssService { |
| 18 | private HOST_URL: string; |
| 19 | private NODE_ENV: string; |
| 20 | constructor( |
| 21 | @Inject('OSS_CLIENT_PROVIDER') private client: OSS, |
| 22 | private configService: ConfigService, |
| 23 | ) { |
| 24 | this.HOST_URL = this.configService.get('OSS_CONFIG.HOST_URL'); |
| 25 | this.NODE_ENV = this.configService.get('SERVER_CONFIG.NODE_ENV'); |
| 26 | } |
| 27 | |
| 28 | private getNewFilePath(opt: OssNewFilePath) { |
| 29 | let { path, newName } = opt; |
| 30 | |
| 31 | path = `${this.NODE_ENV}/${opt.permanent ? '' : 'temp/'}${path || `nopath/${moment().format('YYYYMM')}`}`; |
| 32 | path = path.replace('//', '/'); |
| 33 | newName = newName || uuidv4(); |
| 34 | |
| 35 | return { |
| 36 | path, |
| 37 | newName, |
| 38 | }; |
| 39 | } |
| 40 | |
| 41 | /** |
| 42 | * 获取完整url中的文件名即去除host域名 |
| 43 | * @param url |
| 44 | * @returns |
| 45 | */ |
| 46 | getFileNameFromUrl(url: string) { |
| 47 | const tempStr = url.split(`${this.HOST_URL}/`); |
| 48 | return tempStr.length <= 0 ? '' : tempStr[tempStr.length - 1]; |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * 文件上传 |
| 53 | * @param {Express.Multer.File} file 文件buffer流对象 |
| 54 | * @param {string | undefined} path 路径，不传就会使用‘nopath’前缀 |
| 55 | * @param {string | undefined} newName 新的文件名 |
| 56 | * @param {string | undefined} permanent 是否为永久目录，默认临时 |
| 57 | * @returns |
| 58 | */ |
| 59 | async upFileStream( |
| 60 | file: Express.Multer.File, |
| 61 | path?: string, |
| 62 | newName?: string, |
| 63 | permanent?: boolean, |
| 64 | ) { |
| 65 | const { buffer, mimetype } = file; |
| 66 | const ret = this.getNewFilePath({ path, newName, permanent }); |
| 67 | path = ret.path; |
| 68 | newName = ret.newName; |
| 69 | |
| 70 | const tempStr = mimetype.split('/'); |
| 71 | const fileTypeStr = tempStr[tempStr.length - 1]; |
| 72 | |
| 73 | const stream = new Duplex(); |
| 74 | stream.push(buffer); |
| 75 | stream.push(null); |
| 76 | |
| 77 | try { |
| 78 | const upRes = await this.client.putStream( |
| 79 | `${path}/${newName}.${fileTypeStr}`, |
| 80 | stream, |
| 81 | ); |
| 82 | |
| 83 | const { |
| 84 | name, |
| 85 | res: { status }, |
| 86 | } = upRes; |
| 87 | |
| 88 | if (status !== HttpStatus.OK) throw new Error('文件上传失败'); |
| 89 | |
| 90 | return { |
| 91 | name, |
| 92 | }; |
| 93 | } catch (error) { |
| 94 | throw error; |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | /** |
| 99 | * 去除文件前置 |
| 100 | * @param filePath |
| 101 | */ |
| 102 | private noHostFilePath(filePath: string) { |
| 103 | const hostUrl = this.configService.get('OSS_CONFIG.HOST_URL'); |
| 104 | |
| 105 | const _hostUrl = hostUrl.replace('https', 'http'); |
| 106 | if (filePath.indexOf(_hostUrl) === 0) { |
| 107 | filePath = filePath.replace(`${_hostUrl}/`, ''); |
| 108 | return this.noHostFilePath(filePath); |
| 109 | } |
| 110 | |
| 111 | return filePath; |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * 将临时目录文件转到新的目录文件 |
| 116 | * @param filePath 原文件地址 |
| 117 | * @param newFilePath 不填就是去除temp标识 |
| 118 | * @returns |
| 119 | */ |
| 120 | async changeFilePath( |
| 121 | filePath: string, |
| 122 | newFilePath?: string, |
| 123 | ): Promise<string> { |
| 124 | // 干掉前置 |
| 125 | filePath = this.noHostFilePath(filePath); |
| 126 | |
| 127 | // 复制文件 |
| 128 | newFilePath = newFilePath || filePath.replace('temp/', ''); |
| 129 | |
| 130 | if (filePath === newFilePath) return filePath; |
| 131 | |
| 132 | try { |
| 133 | const { |
| 134 | res: { status }, |
| 135 | } = await this.client.copy(newFilePath, filePath); |
| 136 | if (status !== HttpStatus.OK) throw new Error('文件上传失败'); |
| 137 | return newFilePath; |
| 138 | } catch (error) { |
| 139 | console.log('========== error', error); |
| 140 | throw error; |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * 上传二进制流文件 |
| 146 | * @param buffer 二进制流 base64格式 |
| 147 | * @param path 路径 |
| 148 | * @param permanent 是否为永久目录，默认临时 |
| 149 | */ |
| 150 | async uploadByStream( |
| 151 | buffer: Buffer, // base64格式(不带前缀) |
| 152 | option: { |
| 153 | path?: string; |
| 154 | permanent?: boolean; |
| 155 | fileType: string; |
| 156 | }, |
| 157 | ): Promise<string> { |
| 158 | const { path, permanent, fileType } = option; |
| 159 | const objectName = `${this.NODE_ENV}/${permanent ? '' : 'temp/'}${path || 'nopath'}${`/${moment().format('YYYYMM')}/${uuidv4()}.${fileType}`}`; |
| 160 | |
| 161 | // 上传到阿里云 |
| 162 | try { |
| 163 | const res = await this.client.put(objectName, buffer); |
| 164 | return res.name; |
| 165 | } catch (error) { |
| 166 | console.log('----- uploadByBase64 error -----', error); |
| 167 | return ''; |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | /** |
| 172 | * 根据网络地址上传到阿里云 |
| 173 | * @param url |
| 174 | * @param option |
| 175 | * @returns |
| 176 | */ |
| 177 | async upFileByUrl( |
| 178 | url: string, |
| 179 | option: { |
| 180 | path?: string; |
| 181 | permanent?: boolean; |
| 182 | }, |
| 183 | ) { |
| 184 | const { path, permanent } = option; |
| 185 | let fileType = ''; |
| 186 | if (url.includes('.')) { |
| 187 | fileType = url.split('.').pop(); |
| 188 | } |
| 189 | const objectName = `${this.NODE_ENV}/${permanent ? '' : 'temp/'}${path || 'nopath'}${`/${moment().format('YYYYMM')}/${uuidv4()}.${fileType}`}`; |
| 190 | |
| 191 | try { |
| 192 | const response = await axios.get(url, { responseType: 'arraybuffer' }); |
| 193 | const buffer = Buffer.from(response.data); |
| 194 | |
| 195 | const res = await this.client.put(objectName, buffer); |
| 196 | return res.name; |
| 197 | } catch (error) { |
| 198 | console.log('----- upFileByUrl error -----', error); |
| 199 | return ''; |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | /** |
| 204 | * TODO: 未完成 未使用 上传base64图片 |
| 205 | */ |
| 206 | async uploadByBuffer( |
| 207 | base64Img: string, |
| 208 | path?: string, |
| 209 | permanent?: boolean, |
| 210 | ): Promise<string> { |
| 211 | const imageBuffer = Buffer.from(base64Img, 'base64'); |
| 212 | const objectName = `${this.NODE_ENV}/${permanent ? '' : 'temp/'}${`nopath/${moment().format('YYYYMM')}/${uuidv4()}.png`}`; |
| 213 | try { |
| 214 | const { |
| 215 | url, |
| 216 | res: { status }, |
| 217 | } = await this.client.put(objectName, imageBuffer); |
| 218 | |
| 219 | if (status === 200) { |
| 220 | return url; |
| 221 | } else { |
| 222 | return ''; |
| 223 | } |
| 224 | // eslint-disable-next-line @typescript-eslint/no-unused-vars |
| 225 | } catch (error) { |
| 226 | return ''; |
| 227 | } |
| 228 | } |
| 229 | } |
| 230 |