├── LICENSE ├── README.md ├── download └── download.go ├── html ├── css │ └── viewer.min.css ├── image.html ├── images │ └── loading.gif ├── index.html ├── js │ ├── jquery-3.0.0.min.js │ ├── lazyload.js │ ├── pdfobject.js │ └── viewer.min.js ├── office.html ├── pdf.html └── text.html ├── main.go ├── media ├── mainshow.png └── win_path.png ├── perview └── perview.go └── utils └── utils.go /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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-------------------------------------------------------------------------------- 1 | go File View 2 | ============ 3 | 4 | Go File View( *https://github.com/leeli73/goFileView.git* )是受kkFileView( *https://gitee.com/kekingcn/file-online-preview.git* )启发并基于其网站前端开发的。目前goFileView处于最原始的起步状态，相对简陋，相信随着不断完善成为一套强壮的系统。本人代码风格相对较”狂”，欢迎大家一起来提出建议和完善Go File View。 5 | 6 | 特别要感谢kkfileview的开源，让我可以使用它的前端页面直接开发。调用方式也在很大程度上参考了kkfileview。 7 | 8 | 从我有想法到写出这个beta版，只有半天时间，所以可能有很多问题，目前我也即将毕业，所以很少有时间能维护goFileView，如果您对goFileView有想法或者建议欢迎在issue中提问，我看到后会尽快完善的。 9 | 10 | ![](https://github.com/leeli73/goFileView/blob/master/media/mainshow.png) 11 | 12 | 上面是goFileView的预览效果(顺便给我自己打打广告,手动滑稽) 13 | 14 | 此次版本更新后出现的错误 15 | ==== 16 | 17 | 近期的版本更新后，goFileView Linux版本的图片式预览出现问题 18 | 19 | 免费的预览测试服务受到影响，请大家目前使用PDF式进行预览 20 | 21 | 我将会尽快找到问题，并及时修复 22 | 23 | 同时Docker镜像的问题也已经找到原因，将在下个版本修复 24 | 25 | 26 | 免费预览测试服务 27 | ==== 28 | 29 | 本人刚好有一个空闲的服务器，所以打算将其贡献出来，以供大家测试和预览goFileView 30 | 31 | 这个服务可能随时取消，请大家不要将其引入自己的项目，以免造成意外的错误 32 | 33 | 普通预览接口 http://gofileview.onlinecode.cn/perview/onlinePreview?url=被预览文件的url 34 | 35 | PDF预览接口 http://gofileview.onlinecode.cn/perview/onlinePreview?url=被预览文件的url&type=pdf 36 | 37 | 你可以直接访问 http://gofileview.onlinecode.cn/ 使用预置的文件查看goFileView的效果 38 | 39 | 40 | 41 | 更新 42 | ==== 43 | 44 | 2019年8月 45 | 46 | 1.发布第一个版本 47 | 2.完成在Windows10 WSL中的运行 48 | 49 | 2019年9月 50 | 51 | 1.完成Ubuntu的完美兼容 52 | 53 | 2020年4月 54 | 55 | 1.新增了对Windows系统的支持 56 | 57 | 2020年5月 58 | 59 | 1.新增了对Office的PDF式预览 60 | 2.新增普通预览转PDF预览按钮 61 | 62 | 2020年7月 63 | 64 | 1.修复缓存监控协程异常退出和缓存删除失败的BUG 65 | 2.简单统一日志输出 66 | 3.添加开源协议 67 | 68 | 目前已经完成 69 | ============ 70 | 71 | Word、Excel、PPT转码为PDF 72 | 73 | PDF转码为图片 74 | 75 | 对Word,Excel,PPT和PDF的图片式在线预览 76 | 77 | 未来 78 | ==== 79 | 80 | PDF文件直接在线预览 81 | 82 | PDF转SVG矢量图形 83 | 84 | 多文件的接受 85 | 86 | ftp、xftp、scp等文件传输形式的兼容 87 | 88 | 内置Fire Server 89 | 90 | 本地路径指定，省去下载步骤 91 | 92 | 使用Docker快速部署 93 | ==== 94 | 95 | sudo docker pull leeli73/gofileview 96 | 97 | sudo docker run --name gofileview -ti -p 1180:80 leeli73/gofileview /root/go/src/github.com/leeli73/goFileView/goFileView 98 | 99 | 你可以直接访问 http://127.0.0.1:1180/ 使用goFileView 100 | 101 | 部署编译 102 | ======== 103 | 104 | Windows版 105 | ---- 106 | 107 | 准备 108 | 109 | 1.安装Libreoffice,下载官方msi包,傻瓜式安装即可 (https://zh-cn.libreoffice.org) 110 | 111 | 2.将Libreoffice安装路径下的program文件夹加入PATH中 112 | ![](https://github.com/leeli73/goFileView/blob/master/media/win_path.png?raw=true) 113 | 114 | 3.安装ImageMagick,官方包,傻瓜式安装即可,安装7.0以上版本 (https://ghostscript.com/download/gsdnld.html) 115 | 116 | 4.安装GhostScript,官方包,傻瓜式安装即可 (https://ghostscript.com/download/gsdnld.html) 117 | 118 | 5.git clone 119 | 120 | 编译 121 | 122 | 1.cd goFileView 123 | 2.go build 124 | 125 | 运行 126 | 127 | 1. goFileView.exe 128 | 2. 访问 http://127.0.0.1:8089/perview/onlinePreview?url=被预览文件的url (例如 http://127.0.0.1:8089/perview/onlinePreview?url=http://127.0.0.1:88/test.docx) 129 | 130 | 你可以在代码中修改监听的URL、端口等信息。 131 | 132 | Linux版 133 | ---- 134 | 135 | 准备 136 | 137 | 1.安装Libreoffice:sudo apt install libreoffice 138 | 139 | 2.安装ImageMagick:sudo apt install imagemagick 140 | 141 | 4.修改ImageMagick的配置,vi etc/ImageMagick-6/policy.xml 142 | 143 | 修改 144 | 145 | 为 146 | 147 | 下方新增一行 148 | 149 | 150 | wq退出保存 151 | 152 | 5.安装字体(如果出现乱码) 153 | 154 | 打包一台Windows机器的C:\Windows\Fonts下的所有文件 155 | 发送到Linux机器上 156 | 解压后进入Fonts文件夹，依次执行mkfontscale,mkfontdir,fc-cache 157 | 158 | 5.git clone 159 | 160 | 编译 161 | 162 | 1.cd goFileView 163 | 2.go build 164 | 165 | 运行 166 | 167 | 1. ./goFileView 168 | 2. 访问 http://127.0.0.1:8089/perview/onlinePreview?url=被预览文件的url (例如 http://127.0.0.1:8089/perview/onlinePreview?url=http://127.0.0.1:88/test.docx) 169 | 170 | 你可以再代码中修改监听的URL、端口等信息。 171 | 172 | 在自己的项目中集成 173 | ================== 174 | 175 | 准备 176 | ---- 177 | 178 | go get github.com/leeli73/goFileView 179 | 180 | demo 181 | ---- 182 | ``` 183 | package main 184 | 185 | import( 186 | 187 | "net/http" 188 | 189 | "github.com/leeli73/goFileView/perview" 190 | 191 | ) 192 | 193 | func index(w http.ResponseWriter, r \*http.Request) { 194 | 195 | w.Write([]byte("I'm Index")) 196 | 197 | } 198 | 199 | func main(){ 200 | 201 | perview.Init("/perview/","no") //初始化 202 | 203 | http.HandleFunc("/index",index) 204 | 205 | http.HandleFunc("/perview/",perview.Handle) //绑定到preview的Handle 206 | 207 | http.ListenAndServe(":80", nil) 208 | 209 | } 210 | ``` -------------------------------------------------------------------------------- /download/download.go: -------------------------------------------------------------------------------- 1 | package download 2 | 3 | //https://blog.csdn.net/shixingya/article/details/88951782 4 | 5 | import ( 6 | "errors" 7 | "io" 8 | "log" 9 | "net/http" 10 | "os" 11 | "path" 12 | "strconv" 13 | 14 | "github.com/leeli73/goFileView/utils" 15 | ) 16 | 17 | func IsFileExist(filename string, filesize int64) bool { 18 | info, err := os.Stat(filename) 19 | if os.IsNotExist(err) { 20 | return false 21 | } 22 | if filesize == info.Size() { 23 | return true 24 | } 25 | os.Remove(filename) 26 | return false 27 | } 28 | func DownloadFile(url string, localPath string) (string, error) { 29 | var ( 30 | fsize int64 31 | buf = make([]byte, 32*1024) 32 | written int64 33 | ) 34 | tmpFilePath := localPath + ".download" 35 | client := new(http.Client) 36 | resp, err := client.Get(url) 37 | if err != nil { 38 | return "", err 39 | } 40 | fsize, err = strconv.ParseInt(resp.Header.Get("Content-Length"), 10, 32) 41 | if err != nil { 42 | log.Println("Error: <", err, "> when get file remote size") 43 | return "", err 44 | } 45 | if IsFileExist(localPath, fsize) { 46 | return "had", nil 47 | } 48 | file, err := os.Create(tmpFilePath) 49 | if err != nil { 50 | return "", err 51 | } 52 | defer file.Close() 53 | if resp.Body == nil { 54 | return "", errors.New("body is null") 55 | } 56 | defer resp.Body.Close() 57 | for { 58 | nr, er := resp.Body.Read(buf) 59 | if nr > 0 { 60 | nw, ew := file.Write(buf[0:nr]) 61 | if nw > 0 { 62 | written += int64(nw) 63 | } 64 | if ew != nil { 65 | err = ew 66 | break 67 | } 68 | if nr != nw { 69 | err = io.ErrShortWrite 70 | break 71 | } 72 | } 73 | if er != nil { 74 | if er != io.EOF { 75 | err = er 76 | } 77 | break 78 | } 79 | } 80 | if err == nil { 81 | file.Close() 82 | fileMd5 := utils.GetFileMD5(tmpFilePath) 83 | newPath := "cache/download/" + fileMd5 + path.Ext(localPath) 84 | os.Rename(tmpFilePath, newPath) 85 | log.Printf("Download file success\n", path.Base(localPath), fileMd5) 86 | return newPath, nil 87 | } 88 | return "", err 89 | } 90 | -------------------------------------------------------------------------------- /html/css/viewer.min.css: -------------------------------------------------------------------------------- 1 | /*! 2 | * Viewer.js v1.0.0-rc.1 3 | * https://github.com/fengyuanchen/viewerjs 4 | * 5 | * Copyright (c) 2015-2018 Chen Fengyuan 6 | * Released under the MIT license 7 | * 8 | * Date: 2018-03-13T14:06:18.936Z 9 | */.viewer-close:before,.viewer-flip-horizontal:before,.viewer-flip-vertical:before,.viewer-fullscreen-exit:before,.viewer-fullscreen:before,.viewer-next:before,.viewer-one-to-one:before,.viewer-play:before,.viewer-prev:before,.viewer-reset:before,.viewer-rotate-left:before,.viewer-rotate-right:before,.viewer-zoom-in:before,.viewer-zoom-out:before{background-image:url("data:image/png;base64,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");background-repeat:no-repeat;color:transparent;display:block;font-size:0;height:20px;line-height:0;width:20px}.viewer-zoom-in:before{background-position:0 0;content:"Zoom In"}.viewer-zoom-out:before{background-position:-20px 0;content:"Zoom Out"}.viewer-one-to-one:before{background-position:-40px 0;content:"One to One"}.viewer-reset:before{background-position:-60px 0;content:"Reset"}.viewer-prev:before{background-position:-80px 0;content:"Previous"}.viewer-play:before{background-position:-100px 0;content:"Play"}.viewer-next:before{background-position:-120px 0;content:"Next"}.viewer-rotate-left:before{background-position:-140px 0;content:"Rotate Left"}.viewer-rotate-right:before{background-position:-160px 0;content:"Rotate Right"}.viewer-flip-horizontal:before{background-position:-180px 0;content:"Flip Horizontal"}.viewer-flip-vertical:before{background-position:-200px 0;content:"Flip Vertical"}.viewer-fullscreen:before{background-position:-220px 0;content:"Enter Full Screen"}.viewer-fullscreen-exit:before{background-position:-240px 0;content:"Exit Full Screen"}.viewer-close:before{background-position:-260px 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    34 | 38 | {{AllImages}} 39 |
40 | 41 | 42 | 84 | 85 | 86 | -------------------------------------------------------------------------------- /html/images/loading.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/leeli73/goFileView/503ed374aae3f67eb699c5f5f1a30100164bc744/html/images/loading.gif -------------------------------------------------------------------------------- /html/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | goFileView测试服务 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
17 |

goFileView

18 |

测试的预览服务

19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 39 | 40 | 41 | 42 | 43 | 44 | 49 | 50 | 51 | 52 | 53 | 54 | 59 | 60 | 61 | 62 | 63 | 64 | 69 | 70 | 71 | 72 | 73 | 74 | 79 | 80 | 81 |
文件名文件类型调用接口预览
test.docxdocxhttp://gofileview.onlinecode.cn/perview/onlinePreview?url=http://123.207.241.119/test.docx 34 | 普通预览 36 | PDF预览 38 |
test.xlsxxlsxhttp://gofileview.onlinecode.cn/perview/onlinePreview?url=http://123.207.241.119/test.xlsx普通预览 46 | PDF预览 48 |
test.pptxpptxhttp://gofileview.onlinecode.cn/perview/onlinePreview?url=http://123.207.241.119/test.pptx普通预览 56 | PDF预览 58 |
test.pdfpdfhttp://gofileview.onlinecode.cn/perview/onlinePreview?url=http://123.207.241.119/test.pdf普通预览 66 | PDF预览 68 |
test.txttxthttp://gofileview.onlinecode.cn/perview/onlinePreview?url=http://123.207.241.119/test.txt普通预览 76 | PDF预览 78 |
82 |
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22 |
23 | 26 | {{AllImages}} 27 |
28 |
29 | 31 | 38 | 39 | 40 | -------------------------------------------------------------------------------- /html/pdf.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | GoFileView 5 | 11 | 12 | 13 | 14 |
15 | 16 | 17 | 18 | 19 | -------------------------------------------------------------------------------- /html/text.html: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/leeli73/goFileView/503ed374aae3f67eb699c5f5f1a30100164bc744/html/text.html -------------------------------------------------------------------------------- /main.go: -------------------------------------------------------------------------------- 1 | /*package main 2 | 3 | import( 4 | "github.com/leeli73/goFileView/perview" 5 | ) 6 | 7 | func main() { 8 | perview.Init("/perview/","0.0.0.0:8089") 9 | perview.StartServer() 10 | }*/ 11 | 12 | package main 13 | 14 | import ( 15 | "net/http" 16 | 17 | "github.com/leeli73/goFileView/perview" 18 | ) 19 | 20 | func index(w http.ResponseWriter, r *http.Request) { 21 | w.Write([]byte(` 22 | 23 | 24 | 25 | goFileView测试服务 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 |
37 |

goFileView

38 |

测试的预览服务

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文件名文件类型调用接口预览
test.docxdocxhttp://gofileview.onlinecode.cn/perview/onlinePreview?url=http://onlinecode.cn/test.docx 54 | 普通预览 56 | PDF预览 58 |
test.xlsxxlsxhttp://gofileview.onlinecode.cn/perview/onlinePreview?url=http://onlinecode.cn/test.xlsx普通预览 66 | PDF预览 68 |
test.pptxpptxhttp://gofileview.onlinecode.cn/perview/onlinePreview?url=http://onlinecode.cn/test.pptx普通预览 76 | PDF预览 78 |
test.pdfpdfhttp://gofileview.onlinecode.cn/perview/onlinePreview?url=http://onlinecode.cn/test.pdf普通预览 86 | PDF预览 88 |
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93 | 94 | 95 | 96 | `)) 97 | } 98 | 99 | func main() { 100 | 101 | perview.Init("/perview/", "no") //初始化 102 | 103 | http.HandleFunc("/", index) 104 | 105 | http.HandleFunc("/perview/", perview.Handle) //绑定到preview的Handle 106 | 107 | http.ListenAndServe(":80", nil) 108 | 109 | } 110 | -------------------------------------------------------------------------------- /media/mainshow.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/leeli73/goFileView/503ed374aae3f67eb699c5f5f1a30100164bc744/media/mainshow.png -------------------------------------------------------------------------------- /media/win_path.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/leeli73/goFileView/503ed374aae3f67eb699c5f5f1a30100164bc744/media/win_path.png -------------------------------------------------------------------------------- /perview/perview.go: -------------------------------------------------------------------------------- 1 | package perview 2 | 3 | // sudo convert -density 300 test.pdf %d.jpg 4 | // libreoffice --invisible --convert-to pdf test.docx 5 | import ( 6 | "io/ioutil" 7 | "log" 8 | "net/http" 9 | "net/url" 10 | "os" 11 | "path" 12 | "strconv" 13 | "strings" 14 | "time" 15 | 16 | "github.com/leeli73/goFileView/download" 17 | "github.com/leeli73/goFileView/utils" 18 | ) 19 | 20 | type NowFile struct { 21 | Md5 string 22 | Ext string 23 | LastActiveTime int64 24 | } 25 | 26 | var ( 27 | Pattern string 28 | Address string 29 | AllFile map[string]*NowFile 30 | ExpireTime int64 31 | AllOfficeEtx = []string{".doc", ".docx", ".xls", ".xlsx", ".ppt", ".pptx", ".txt"} 32 | AllImageEtx = []string{".jpg", ".png", ".gif"} 33 | ) 34 | 35 | func Handle(w http.ResponseWriter, r *http.Request) { 36 | if Pattern == "" || Address == "" { 37 | log.Fatal("Error: Please Init Go File View First!") 38 | } 39 | requestUrl := r.URL.String() 40 | filePath := requestUrl[len(Pattern):] 41 | if utils.ComparePath(filePath, "onlinePreview") { 42 | r.ParseForm() 43 | submitUrl := r.Form.Get("url") 44 | fileUrl, err := url.QueryUnescape(submitUrl) 45 | if err != nil { 46 | w.Write([]byte("URL解码出现错误")) 47 | return 48 | } 49 | submitType := r.Form.Get("type") 50 | if filePath, err := download.DownloadFile(fileUrl, "cache/download/"+path.Base(fileUrl)); err == nil { 51 | if submitType == "pdf" && (path.Ext(filePath) == ".pdf" || utils.IsInArr(path.Ext(filePath), AllOfficeEtx)) { //预留的PDF预览接口 52 | if path.Ext(filePath) == ".pdf" { 53 | dataByte := pdfPageDownload("cache/download/" + path.Base(filePath)) 54 | w.Header().Set("content-length", strconv.Itoa(len(dataByte))) 55 | w.Header().Set("content-type", "text/html;charset=UTF-8") 56 | w.Write([]byte(dataByte)) 57 | setFileMap(path.Base(filePath)) 58 | } else { 59 | if pdfPath := utils.ConvertToPDF(filePath); pdfPath != "" { 60 | dataByte := pdfPage("cache/pdf/" + path.Base(pdfPath)) 61 | w.Header().Set("content-length", strconv.Itoa(len(dataByte))) 62 | w.Header().Set("content-type", "text/html;charset=UTF-8") 63 | w.Write([]byte(dataByte)) 64 | setFileMap(path.Base(filePath)) 65 | } else { 66 | w.Write([]byte("转换为PDF时出现错误!")) 67 | } 68 | } 69 | } else if utils.IsInArr(path.Ext(filePath), AllImageEtx) { 70 | dataByte := imagePage(filePath) 71 | w.Header().Set("content-length", strconv.Itoa(len(dataByte))) 72 | w.Header().Set("content-type", "text/html;charset=UTF-8") 73 | w.Write([]byte(dataByte)) 74 | } else if utils.IsInArr(path.Ext(filePath), AllOfficeEtx) { 75 | if isHave(path.Base(filePath)) { 76 | dataByte := officePage("cache/convert/" + strings.Split(path.Base(filePath), ".")[0]) 77 | w.Header().Set("content-length", strconv.Itoa(len(dataByte))) 78 | w.Header().Set("content-type", "text/html;charset=UTF-8") 79 | w.Write([]byte(dataByte)) 80 | return 81 | } 82 | if pdfPath := utils.ConvertToPDF(filePath); pdfPath != "" { 83 | if imgPath := utils.ConvertToImg(pdfPath); imgPath != "" { 84 | dataByte := officePage(imgPath) 85 | w.Header().Set("content-length", strconv.Itoa(len(dataByte))) 86 | w.Header().Set("content-type", "text/html;charset=UTF-8") 87 | w.Write([]byte(dataByte)) 88 | setFileMap(path.Base(filePath)) 89 | } else { 90 | w.Write([]byte("转换为图片时出现错误!")) 91 | } 92 | } else { 93 | w.Write([]byte("转换为PDF时出现错误!")) 94 | } 95 | } else if path.Ext(filePath) == ".pdf" { 96 | if isHave(path.Base(filePath)) { 97 | dataByte := officePage("cache/convert/" + strings.Split(path.Base(filePath), ".")[0]) 98 | w.Header().Set("content-length", strconv.Itoa(len(dataByte))) 99 | w.Header().Set("content-type", "text/html;charset=UTF-8") 100 | w.Write([]byte(dataByte)) 101 | return 102 | } 103 | if imgPath := utils.ConvertToImg(filePath); imgPath != "" { 104 | dataByte := officePage(imgPath) 105 | w.Header().Set("content-length", strconv.Itoa(len(dataByte))) 106 | w.Header().Set("content-type", "text/html;charset=UTF-8") 107 | w.Write([]byte(dataByte)) 108 | setFileMap(path.Base(filePath)) 109 | } else { 110 | w.Write([]byte("转换为图片时出现错误!")) 111 | } 112 | } 113 | } else { 114 | log.Println("Error: <", err, "> when download file") 115 | w.Write([]byte("获取文件失败...请检查你的路径是否正确!")) 116 | } 117 | } else if utils.ComparePath(filePath, "img_asset") { 118 | imgPath := requestUrl[len(Pattern+"img_asset"):] 119 | DataByte, err := ioutil.ReadFile("cache/download/" + imgPath) 120 | if err != nil { 121 | w.Header().Set("content-length", strconv.Itoa(len("404"))) 122 | w.Header().Set("content-type", "text/html;charset=UTF-8") 123 | w.Write([]byte("出现了一些问题,导致File View无法获取您的数据!")) 124 | return 125 | } 126 | w.Header().Set("content-length", strconv.Itoa(len(DataByte))) 127 | w.Write(DataByte) 128 | } else if utils.ComparePath(filePath, "office_asset") { 129 | imgPath := requestUrl[len(Pattern+"office_asset"):] 130 | DataByte, err := ioutil.ReadFile("cache/convert/" + imgPath) 131 | if err != nil { 132 | w.Header().Set("content-length", strconv.Itoa(len("404"))) 133 | w.Header().Set("content-type", "text/html;charset=UTF-8") 134 | w.Write([]byte("出现了一些问题,导致File View无法获取您的数据!")) 135 | return 136 | } 137 | w.Header().Set("content-length", strconv.Itoa(len(DataByte))) 138 | w.Write(DataByte) 139 | } else if utils.ComparePath(filePath, "pdf_asset") { 140 | pdfPath := requestUrl[len(Pattern+"pdf_asset"):] 141 | DataByte, err := ioutil.ReadFile("cache/pdf/" + pdfPath) 142 | if err != nil { 143 | w.Header().Set("content-length", strconv.Itoa(len("404"))) 144 | w.Header().Set("content-type", "text/html;charset=UTF-8") 145 | w.Write([]byte("出现了一些问题,导致File View无法获取您的数据!")) 146 | return 147 | } 148 | w.Header().Set("content-length", strconv.Itoa(len(DataByte))) 149 | w.Header().Set("content-type", "application/pdf;charset=UTF-8") 150 | w.Write(DataByte) 151 | } else { 152 | DataByte, err := ioutil.ReadFile("html/" + filePath) 153 | if err != nil { 154 | w.Header().Set("content-length", strconv.Itoa(len("404"))) 155 | w.Header().Set("content-type", "text/html;charset=UTF-8") 156 | w.Write([]byte("出现了一些问题,导致File View无法获取您的数据!")) 157 | return 158 | } 159 | w.Header().Set("content-length", strconv.Itoa(len(DataByte))) 160 | if path.Ext(filePath) == ".css" { 161 | w.Header().Set("content-type", "text/css;charset=UTF-8") 162 | } else if path.Ext(filePath) == ".js" { 163 | w.Header().Set("content-type", "application/x-javascript;charset=UTF-8") 164 | } 165 | w.Write(DataByte) 166 | } 167 | } 168 | 169 | func officePage(imgPath string) []byte { 170 | rd, _ := ioutil.ReadDir(imgPath) 171 | dataByte, _ := ioutil.ReadFile("html/office.html") 172 | dataStr := string(dataByte) 173 | htmlCode := "" 174 | for _, fi := range rd { 175 | if !fi.IsDir() { 176 | htmlCode = htmlCode + `loading` 179 | } 180 | } 181 | dataStr = strings.Replace(dataStr, "{{AllImages}}", htmlCode, -1) 182 | dataByte = []byte(dataStr) 183 | return dataByte 184 | } 185 | 186 | func imagePage(filePath string) []byte { 187 | dataByte, _ := ioutil.ReadFile("html/image.html") 188 | dataStr := string(dataByte) 189 | imageUrl := "img_asset/" + path.Base(filePath) 190 | htmlCode := `
  • 191 | 193 |
    • ` 194 | dataStr = strings.Replace(dataStr, "{{AllImages}}", htmlCode, -1) 195 | dataStr = strings.Replace(dataStr, "{{FirstPath}}", imageUrl, -1) 196 | dataByte = []byte(dataStr) 197 | return dataByte 198 | } 199 | 200 | func pdfPage(filePath string) []byte { 201 | dataByte, _ := ioutil.ReadFile("html/pdf.html") 202 | dataStr := string(dataByte) 203 | pdfUrl := "pdf_asset/" + path.Base(filePath) 204 | dataStr = strings.Replace(dataStr, "{{url}}", pdfUrl, -1) 205 | dataByte = []byte(dataStr) 206 | return dataByte 207 | } 208 | 209 | func pdfPageDownload(filePath string) []byte { 210 | dataByte, _ := ioutil.ReadFile("html/pdf.html") 211 | dataStr := string(dataByte) 212 | pdfUrl := "img_asset/" + path.Base(filePath) 213 | dataStr = strings.Replace(dataStr, "{{url}}", pdfUrl, -1) 214 | dataByte = []byte(dataStr) 215 | return dataByte 216 | } 217 | 218 | func isHave(fileName string) bool { 219 | fileName = strings.Split(fileName, ".")[0] 220 | if _, ok := AllFile[fileName]; ok { 221 | AllFile[fileName].LastActiveTime = time.Now().Unix() 222 | return true 223 | } else { 224 | return false 225 | } 226 | } 227 | 228 | func setFileMap(fileName string) { 229 | ext := path.Ext(fileName) 230 | fileName = strings.Split(fileName, ".")[0] 231 | if _, ok := AllFile[fileName]; ok { 232 | AllFile[fileName].LastActiveTime = time.Now().Unix() 233 | return 234 | } else { 235 | temp := &NowFile{ 236 | Md5: fileName, 237 | Ext: ext, 238 | LastActiveTime: time.Now().Unix(), 239 | } 240 | AllFile[fileName] = temp 241 | } 242 | } 243 | 244 | func Monitor() { 245 | log.Println("Info: Starting Monitor Thread") 246 | for { 247 | for _, v := range AllFile { 248 | if time.Now().Unix()-v.LastActiveTime > ExpireTime { 249 | if v.Md5 != "" { 250 | os.RemoveAll("cache/convert/" + v.Md5) 251 | os.Remove("cache/download/" + v.Md5 + v.Ext) 252 | os.Remove("cache/pdf/" + v.Md5 + ".pdf") 253 | log.Println("Cache file ", v.Md5, " delete") 254 | delete(AllFile, v.Md5) 255 | } else { 256 | delete(AllFile, v.Md5) 257 | log.Println("Cache file ", v.Md5, " delete with error") 258 | } 259 | } 260 | } 261 | time.Sleep(time.Second * 60) 262 | } 263 | } 264 | 265 | func StartServer() { 266 | http.HandleFunc(Pattern, Handle) 267 | log.Println("Info: Go File View Listening Address: " + Address + " on " + Pattern) 268 | if err := http.ListenAndServe(Address, nil); err != nil { 269 | log.Fatal("Error: <", err, "> when StartServer") 270 | } 271 | } 272 | 273 | func Init(pattern string, address string) { 274 | Pattern = pattern 275 | Address = address 276 | AllFile = make(map[string]*NowFile) 277 | ExpireTime = 3600 278 | go Monitor() 279 | } 280 | -------------------------------------------------------------------------------- /utils/utils.go: -------------------------------------------------------------------------------- 1 | package utils 2 | 3 | import ( 4 | "bytes" 5 | "crypto/md5" 6 | "fmt" 7 | "io" 8 | "log" 9 | "math/rand" 10 | "os" 11 | "os/exec" 12 | "path" 13 | "runtime" 14 | "strings" 15 | "time" 16 | ) 17 | 18 | func ComparePath(a string, b string) bool { 19 | if len(a) >= len(b) { 20 | if strings.Compare(a[0:len(b)], b) == 0 { 21 | return true 22 | } else { 23 | return false 24 | } 25 | } else { 26 | return false 27 | } 28 | } 29 | 30 | func ConvertToPDF(filePath string) string { 31 | commandName := "" 32 | var params []string 33 | if runtime.GOOS == "windows" { 34 | commandName = "cmd" 35 | params = []string{"/c", "soffice", "--headless", "--invisible", "--convert-to", "pdf", "--outdir", "cache/pdf/", filePath} 36 | } else if runtime.GOOS == "linux" { 37 | commandName = "libreoffice" 38 | params = []string{"--invisible", "--headless", "--convert-to", "pdf", "--outdir", "cache/pdf/", filePath} 39 | } 40 | if _, ok := interactiveToexec(commandName, params); ok { 41 | resultPath := "cache/pdf/" + strings.Split(path.Base(filePath), ".")[0] + ".pdf" 42 | if ok, _ := PathExists(resultPath); ok { 43 | log.Printf("Convert <%s> to pdf\n", path.Base(filePath)) 44 | return resultPath 45 | } else { 46 | return "" 47 | } 48 | } else { 49 | return "" 50 | } 51 | } 52 | 53 | func ConvertToImg(filePath string) string { 54 | fileName := strings.Split(path.Base(filePath), ".")[0] 55 | //fileDir := path.Dir(filePath) 56 | fileExt := path.Ext(filePath) 57 | if fileExt != ".pdf" { 58 | return "" 59 | } 60 | os.Mkdir("cache/convert/"+fileName, os.ModePerm) 61 | commandName := "" 62 | var params []string 63 | if runtime.GOOS == "windows" { 64 | commandName = "cmd" 65 | params = []string{"/c", "magick", "convert", "-density", "130", filePath, "cache/convert/" + fileName + "/%d.jpg"} 66 | } else if runtime.GOOS == "linux" { 67 | commandName = "convert" 68 | params = []string{"-density", "130", filePath, "cache/convert/" + fileName + "/%d.jpg"} 69 | } 70 | if _, ok := interactiveToexec(commandName, params); ok { 71 | resultPath := "cache/convert/" + strings.Split(path.Base(filePath), ".")[0] 72 | if ok, _ := PathExists(resultPath); ok { 73 | log.Printf("Convert <%s> to images\n", path.Base(filePath)) 74 | return resultPath 75 | } else { 76 | return "" 77 | } 78 | } else { 79 | return "" 80 | } 81 | } 82 | 83 | func interactiveToexec(commandName string, params []string) (string, bool) { 84 | cmd := exec.Command(commandName, params...) 85 | buf, err := cmd.Output() 86 | w := bytes.NewBuffer(nil) 87 | cmd.Stderr = w 88 | if err != nil { 89 | log.Println("Error: <", err, "> when exec command read out buffer") 90 | return "", false 91 | } else { 92 | return string(buf), true 93 | } 94 | } 95 | 96 | func PathExists(path string) (bool, error) { 97 | _, err := os.Stat(path) 98 | if err == nil { 99 | return true, nil 100 | } 101 | if os.IsNotExist(err) { 102 | return false, nil 103 | } 104 | return false, err 105 | } 106 | 107 | func GetFileMD5(filePath string) string { 108 | f, err := os.Open(filePath) 109 | if err != nil { 110 | log.Println("Error: <", err, "> when open file to get md5") 111 | return "" 112 | } 113 | defer f.Close() 114 | md5hash := md5.New() 115 | if _, err := io.Copy(md5hash, f); err != nil { 116 | log.Println("Error: <", err, "> when get md5") 117 | return "" 118 | } 119 | f.Close() 120 | return fmt.Sprintf("%x", md5hash.Sum(nil)) 121 | } 122 | 123 | func randString(len int) string { 124 | r := rand.New(rand.NewSource(time.Now().Unix())) 125 | bytes := make([]byte, len) 126 | for i := 0; i < len; i++ { 127 | b := r.Intn(26) + 65 128 | bytes[i] = byte(b) 129 | } 130 | return string(bytes) 131 | } 132 | 133 | func IsInArr(key string, arr []string) bool { 134 | for i := 0; i < len(arr); i++ { 135 | if key == arr[i] { 136 | return true 137 | } 138 | } 139 | return false 140 | } 141 | --------------------------------------------------------------------------------