{"id":207974,"date":"2025-07-08T09:51:20","date_gmt":"2025-07-08T01:51:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207974\/"},"modified":"2025-07-08T09:51:20","modified_gmt":"2025-07-08T01:51:20","slug":"%e5%9c%a8-go-%e4%b8%ad%e9%80%9a%e8%bf%87-ssh-%e5%8f%91%e9%80%81%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207974\/","title":{"rendered":"\u5728 go \u4e2d\u901a\u8fc7 SSH \u53d1\u9001\u6587\u4ef6"},"content":{"rendered":"<p><b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>\u5728 go \u4e2d\u901a\u8fc7 SSH \u53d1\u9001\u6587\u4ef6<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-27 14:45:36<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u5728Golang\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u5c31\u6574\u7406\u5206\u4eab\u300a\u5728 go \u4e2d\u901a\u8fc7 SSH \u53d1\u9001\u6587\u4ef6\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<p>\u6211\u5728\u53d1\u5e03\u8fd9\u4e2a\u95ee\u9898\u4e4b\u524d\u627e\u5230\u4e86\u8fd9\u4e2a\u7b54\u6848\uff0c\u4f46\u6211\u4e0d\u6e05\u695a\u7b54\u6848\u3002<\/p>\n<p>\u8fd9\u662f\u7b54\u6848\u7684\u4ee3\u7801\uff1a<\/p>\n<pre>conn, err := ssh.Dial(\"tcp\", hostname+\":22\", config)\nif err != nil {\n    return err\n}\n\nsession, err := conn.NewSession()\nif err != nil {\n    return err\n}\ndefer session.Close()\n\nr, err := session.StdoutPipe()\nif err != nil {\n    return err\n}\n\nname := fmt.Sprintf(\"%s\/backup_folder_%v.tar.gz\", path, time.Now().Unix())\nfile, err := os.OpenFile(name, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0644)\nif err != nil {\n    return err\n}\ndefer file.Close()\n\nif err := session.Start(cmd); err != nil {\n    return err\n}\n\nn, err := io.Copy(file, r)\nif err != nil {\n    return err\n}\n\nif err := session.Wait(); err != nil {\n    return err\n}\n\nreturn nil<\/pre>\n<p>\u6211\u4e0d\u660e\u767d cmd \u53d8\u91cf\u548c io.copy \u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u5b83\u5728\u54ea\u91cc\u4ee5\u53ca\u5982\u4f55\u77e5\u9053\u8981\u590d\u5236\u54ea\u4e2a\u6587\u4ef6\u3002 \u6211\u559c\u6b22\u4f7f\u7528 io.copy \u7684\u60f3\u6cd5\uff0c\u4f46\u6211\u4e0d\u77e5\u9053\u5982\u4f55\u901a\u8fc7 ssh \u521b\u5efa\u6587\u4ef6\u5e76\u5f00\u59cb\u4f7f\u7528 io.copy \u5411\u5176\u53d1\u9001\u5185\u5bb9\u3002 <\/p>\n<p> <\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p> <\/p>\n<p>\u4ee5\u4e0b\u662f\u6709\u5173\u5982\u4f55\u4f7f\u7528 go \u4f5c\u4e3a <code>scp<\/code> \u5ba2\u6237\u7aef\u7684\u6700\u5c0f\u793a\u4f8b\uff1a<\/p>\n<pre>config := &amp;ssh.clientconfig{\n    user: \"user\",\n    auth: []ssh.authmethod{\n        ssh.password(\"pass\"),\n    },\n    hostkeycallback: ssh.insecureignorehostkey(),\n}\n\nclient, _ := ssh.dial(\"tcp\", \"remotehost:22\", config)\ndefer client.close()\n\nsession, _ := client.newsession()\ndefer session.close()\n\nfile, _ := os.open(\"filetocopy\")\ndefer file.close()\nstat, _ := file.stat()\n\nwg := sync.waitgroup{}\nwg.add(1)\n\ngo func() {\n    hostin, _ := session.stdinpipe()\n    defer hostin.close()\n    fmt.fprintf(hostin, \"c0664 %d %s\\n\", stat.size(), \"filecopyname\")\n    io.copy(hostin, file)\n    fmt.fprint(hostin, \"\\x00\")\n    wg.done()\n}()\n\nsession.run(\"\/usr\/bin\/scp -t \/remotedirectory\/\")\nwg.wait()<\/pre>\n<p>\u8bf7\u6ce8\u610f\uff0c\u4e3a\u4e86\u7b80\u6d01\u8d77\u89c1\uff0c\u6211\u5ffd\u7565\u4e86\u6240\u6709\u9519\u8bef\u3002<\/p>\n<ol>\n<li><code>session.stdinpipe()<\/code> \u5c06\u4e3a\u8fdc\u7a0b\u4e3b\u673a\u521b\u5efa\u4e00\u4e2a\u53ef\u5199\u7ba1\u9053\u3002<\/li>\n<li><code>fmt.fprintf(... \"c0664 ...\")<\/code> \u5c06\u53d1\u51fa\u5e26\u6709 <code>0664<\/code> \u6743\u9650\u3001<code>stat.size()<\/code> \u5927\u5c0f\u548c\u8fdc\u7a0b\u6587\u4ef6\u540d <code>filecopyname<\/code> \u7684\u6587\u4ef6\u5f00\u59cb\u4fe1\u53f7\u3002<\/li>\n<li><code>io.copy(hostin, file)<\/code> \u4f1a\u5c06 <code>file<\/code> \u7684\u5185\u5bb9\u5199\u5165 <code>hostin<\/code>\u3002<\/li>\n<li><code>fmt.fprint(hostin, \"\\x00\")<\/code> \u5c06\u53d1\u51fa\u6587\u4ef6\u7ed3\u675f\u4fe1\u53f7\u3002<\/li>\n<li><code>session.run(\"\/usr\/bin\/scp -qt \/remotedirectory\/\")<\/code> \u5c06\u8fd0\u884c scp \u547d\u4ee4\u3002<\/li>\n<\/ol>\n<p><strong>\u7f16\u8f91<\/strong>\uff1a\u6839\u636e op \u7684\u8bf7\u6c42\u6dfb\u52a0\u7b49\u5f85\u7ec4<\/p>\n<p>\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528 sftp \u5305\u6765\u5b8c\u6210\u6b64\u64cd\u4f5c &#8211; \u201cgithub.com\/pkg\/sftp\u201d<\/p>\n<pre>\nfunc sshcopyfile(srcpath, dstpath string) error {\n    config := &amp;ssh.clientconfig{\n        user: \"user\",\n        auth: []ssh.authmethod{\n            ssh.password(\"pass\"),\n        },\n        hostkeycallback: ssh.insecureignorehostkey(),\n    }\n\n    client, _ := ssh.dial(\"tcp\", \"remotehost:22\", config)\n    defer client.close()\n\n\n    \/\/ open an sftp session over an existing ssh connection.\n    sftp, err := sftp.newclient(client)\n    if err != nil {\n        return err\n    }\n    defer sftp.close()\n\n    \/\/ open the source file\n    srcfile, err := os.open(srcpath)\n    if err != nil {\n        return err\n    }\n    defer srcfile.close()\n\n    \/\/ create the destination file\n    dstfile, err := sftp.create(dstpath)\n    if err != nil {\n        return err\n    }\n    defer dstfile.close()\n\n    \/\/ write to file\n    if  _, err := dstfile.readfrom(srcfile); err!= nil {\n        return err\n    }\n    return nil\n}\n\n<\/pre>\n<p>\u7136\u540e\u8fd9\u6837\u79f0\u547c\u5b83<\/p>\n<pre>sshcopyfile(\"\/path\/to\/local\/file.txt\", \"\/path\/on\/remote\/file.txt\")\n<\/pre>\n<p>\u8fd9\u4e9b\u662f\u5fc5\u9700\u7684\u5305<\/p>\n<pre>\"github.com\/pkg\/sftp\"\n\"golang.org\/x\/crypto\/ssh\"<\/pre>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8eGolang\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f53\u524d\u4f4d\u7f6e\uff1a &gt; &gt; &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207974","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207974","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207974"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207974\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207974"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207974"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207974"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}