package browse import ( "fmt" "io/ioutil" "net/http" "text/template" "github.com/mholt/caddy" "github.com/mholt/caddy/caddyhttp/httpserver" ) func init() { caddy.RegisterPlugin("browse", caddy.Plugin{ ServerType: "http", Action: setup, }) } // setup configures a new Browse middleware instance. func setup(c *caddy.Controller) error { configs, err := browseParse(c) if err != nil { return err } b := Browse{ Configs: configs, IgnoreIndexes: false, } httpserver.GetConfig(c).AddMiddleware(func(next httpserver.Handler) httpserver.Handler { b.Next = next return b }) return nil } func browseParse(c *caddy.Controller) ([]Config, error) { var configs []Config cfg := httpserver.GetConfig(c) appendCfg := func(bc Config) error { for _, c := range configs { if c.PathScope == bc.PathScope { return fmt.Errorf("duplicate browsing config for %s", c.PathScope) } } configs = append(configs, bc) return nil } for c.Next() { var bc Config // First argument is directory to allow browsing; default is site root if c.NextArg() { bc.PathScope = c.Val() } else { bc.PathScope = "/" } bc.Root = http.Dir(cfg.Root) theRoot, err := bc.Root.Open("/") // catch a missing path early if err != nil { return configs, err } defer theRoot.Close() _, err = theRoot.Readdir(-1) if err != nil { return configs, err } // Second argument would be the template file to use var tplText string if c.NextArg() { tplBytes, err := ioutil.ReadFile(c.Val()) if err != nil { return configs, err } tplText = string(tplBytes) } else { tplText = defaultTemplate } // Build the template tpl, err := template.New("listing").Parse(tplText) if err != nil { return configs, err } bc.Template = tpl // Save configuration err = appendCfg(bc) if err != nil { return configs, err } } return configs, nil } // The default template to use when serving up directory listings const defaultTemplate = `<!DOCTYPE html> <html> <head> <title>{{.Name}}</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <style> * { padding: 0; margin: 0; } body { font-family: sans-serif; text-rendering: optimizespeed; } a { color: #006ed3; text-decoration: none; } a:hover, h1 a:hover { color: #319cff; } header, #summary { padding-left: 5%; padding-right: 5%; } th:first-child, td:first-child { padding-left: 5%; } th:last-child, td:last-child { padding-right: 5%; } header { padding-top: 25px; padding-bottom: 15px; background-color: #f2f2f2; } h1 { font-size: 20px; font-weight: normal; white-space: nowrap; overflow-x: hidden; text-overflow: ellipsis; } h1 a { color: inherit; } h1 a:hover { text-decoration: underline; } main { display: block; } .meta { font-size: 12px; font-family: Verdana, sans-serif; border-bottom: 1px solid #9C9C9C; padding-top: 15px; padding-bottom: 15px; } .meta-item { margin-right: 1em; } table { width: 100%; border-collapse: collapse; } tr { border-bottom: 1px dashed #dadada; } tbody tr:hover { background-color: #ffffec; } th, td { text-align: left; padding: 10px 0; } th { padding-top: 15px; padding-bottom: 15px; font-size: 16px; white-space: nowrap; } th a { color: black; } th svg { vertical-align: middle; } td { font-size: 14px; } td:first-child { width: 50%; } th:last-child, td:last-child { text-align: right; } td:first-child svg { position: absolute; } td .name, td .goup { margin-left: 1.75em; word-break: break-all; overflow-wrap: break-word; white-space: pre-wrap; } footer { padding: 40px 20px; font-size: 12px; text-align: center; } @media (max-width: 600px) { .hideable { display: none; } td:first-child { width: auto; } th:nth-child(2), td:nth-child(2) { padding-right: 5%; text-align: right; } } </style> </head> <body> <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" height="0" width="0" style="position: absolute;"> <defs> <!-- Folder --> <linearGradient id="f" y2="640" gradientUnits="userSpaceOnUse" x2="244.84" gradientTransform="matrix(.97319 0 0 1.0135 -.50695 -13.679)" y1="415.75" x1="244.84"> <stop stop-color="#b3ddfd" offset="0"/> <stop stop-color="#69c" offset="1"/> </linearGradient> <linearGradient id="e" y2="571.06" gradientUnits="userSpaceOnUse" x2="238.03" gradientTransform="translate(0,2)" y1="346.05" x1="236.26"> <stop stop-color="#ace" offset="0"/> <stop stop-color="#369" offset="1"/> </linearGradient> <g id="folder" transform="translate(-266.06 -193.36)"> <g transform="matrix(.066019 0 0 .066019 264.2 170.93)"> <g transform="matrix(1.4738 0 0 1.4738 -52.053 -166.93)"> <path fill="#69c" d="m98.424 343.78c-11.08 0-20 8.92-20 20v48.5 33.719 105.06c0 11.08 8.92 20 20 20h279.22c11.08 0 20-8.92 20-20v-138.78c0-11.08-8.92-20-20-20h-117.12c-7.5478-1.1844-9.7958-6.8483-10.375-11.312v-5.625-11.562c0-11.08-8.92-20-20-20h-131.72z"/> <rect rx="12.885" ry="12.199" height="227.28" width="366.69" y="409.69" x="54.428" fill="#369"/> <path fill="url(#e)" d="m98.424 345.78c-11.08 0-20 8.92-20 20v48.5 33.719 105.06c0 11.08 8.92 20 20 20h279.22c11.08 0 20-8.92 20-20v-138.78c0-11.08-8.92-20-20-20h-117.12c-7.5478-1.1844-9.7958-6.8483-10.375-11.312v-5.625-11.562c0-11.08-8.92-20-20-20h-131.72z"/> <rect rx="12.885" ry="12.199" height="227.28" width="366.69" y="407.69" x="54.428" fill="url(#f)"/> </g> </g> </g> <!-- File --> <linearGradient id="a"> <stop stop-color="#cbcbcb" offset="0"/> <stop stop-color="#f0f0f0" offset=".34923"/> <stop stop-color="#e2e2e2" offset="1"/> </linearGradient> <linearGradient id="d" y2="686.15" xlink:href="#a" gradientUnits="userSpaceOnUse" y1="207.83" gradientTransform="matrix(.28346 0 0 .31053 -608.52 485.11)" x2="380.1" x1="749.25"/> <linearGradient id="c" y2="287.74" xlink:href="#a" gradientUnits="userSpaceOnUse" y1="169.44" gradientTransform="matrix(.28342 0 0 .31057 -608.52 485.11)" x2="622.33" x1="741.64"/> <linearGradient id="b" y2="418.54" gradientUnits="userSpaceOnUse" y1="236.13" gradientTransform="matrix(.29343 0 0 .29999 -608.52 485.11)" x2="330.88" x1="687.96"> <stop stop-color="#fff" offset="0"/> <stop stop-color="#fff" stop-opacity="0" offset="1"/> </linearGradient> <g id="file" transform="translate(-278.15 -216.59)"> <g fill-rule="evenodd" transform="matrix(.19775 0 0 .19775 381.05 112.68)"> <path d="m-520.17 525.5v36.739 36.739 36.739 36.739h33.528 33.528 33.528 33.528v-36.739-36.739-36.739l-33.528-36.739h-33.528-33.528-33.528z" stroke-opacity=".36478" stroke-width=".42649" fill="#fff"/> <g> <path d="m-520.11 525.68v36.739 36.739 36.739 36.739h33.528 33.528 33.528 33.528v-36.739-36.739-36.739l-33.528-36.739h-33.528-33.528-33.528z" stroke-opacity=".36478" stroke="#000" stroke-width=".42649" fill="url(#d)"/> <path d="m-386 562.42c-10.108-2.9925-23.206-2.5682-33.101-0.86253 1.7084-10.962 1.922-24.701-0.4271-35.877l33.528 36.739z" stroke-width=".95407pt" fill="url(#c)"/> <path d="m-519.13 537-0.60402 134.7h131.68l0.0755-33.296c-2.9446 1.1325-32.692-40.998-70.141-39.186-37.483 1.8137-27.785-56.777-61.006-62.214z" stroke-width="1pt" fill="url(#b)"/> </g> </g> </g> <!-- Up arrow --> <g id="up-arrow" transform="translate(-279.22 -208.12)"> <path transform="matrix(.22413 0 0 .12089 335.67 164.35)" stroke-width="0" d="m-194.17 412.01h-28.827-28.827l14.414-24.965 14.414-24.965 14.414 24.965z"/> </g> <!-- Down arrow --> <g id="down-arrow" transform="translate(-279.22 -208.12)"> <path transform="matrix(.22413 0 0 -.12089 335.67 257.93)" stroke-width="0" d="m-194.17 412.01h-28.827-28.827l14.414-24.965 14.414-24.965 14.414 24.965z"/> </g> </defs> </svg> <header> <h1> {{range $url, $name := .BreadcrumbMap}}<a href="{{$url}}">{{$name}}</a>{{if ne $url "/"}}/{{end}}{{end}} </h1> </header> <main> <div class="meta"> <div id="summary"> <span class="meta-item"><b>{{.NumDirs}}</b> director{{if eq 1 .NumDirs}}y{{else}}ies{{end}}</span> <span class="meta-item"><b>{{.NumFiles}}</b> file{{if ne 1 .NumFiles}}s{{end}}</span> {{- if ne 0 .ItemsLimitedTo}} <span class="meta-item">(of which only <b>{{.ItemsLimitedTo}}</b> are displayed)</span> {{- end}} </div> </div> <div class="listing"> <table aria-describedby="summary"> <thead> <tr> <th> {{- if and (eq .Sort "name") (ne .Order "desc")}} <a href="?sort=name&order=desc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Name <svg width="1em" height=".4em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#up-arrow"></use></svg></a> {{- else if and (eq .Sort "name") (ne .Order "asc")}} <a href="?sort=name&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Name <svg width="1em" height=".4em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#down-arrow"></use></svg></a> {{- else}} <a href="?sort=name&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Name</a> {{- end}} </th> <th> {{- if and (eq .Sort "size") (ne .Order "desc")}} <a href="?sort=size&order=desc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Size <svg width="1em" height=".4em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#up-arrow"></use></svg></a> {{- else if and (eq .Sort "size") (ne .Order "asc")}} <a href="?sort=size&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Size <svg width="1em" height=".4em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#down-arrow"></use></svg></a> {{- else}} <a href="?sort=size&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Size</a> {{- end}} </th> <th class="hideable"> {{- if and (eq .Sort "time") (ne .Order "desc")}} <a href="?sort=time&order=desc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Modified <svg width="1em" height=".4em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#up-arrow"></use></svg></a> {{- else if and (eq .Sort "time") (ne .Order "asc")}} <a href="?sort=time&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Modified <svg width="1em" height=".4em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#down-arrow"></use></svg></a> {{- else}} <a href="?sort=time&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Modified</a> {{- end}} </th> </tr> </thead> <tbody> {{- if .CanGoUp}} <tr> <td> <a href=".."> <span class="goup">Go up</span> </a> </td> <td>—</td> <td class="hideable">—</td> </tr> {{- end}} {{- range .Items}} <tr> <td> <a href="{{.URL}}"> {{- if .IsDir}} <svg width="1.5em" height="1em" version="1.1" viewBox="0 0 35.678803 28.527945"><use xlink:href="#folder"></use></svg> {{- else}} <svg width="1.5em" height="1em" version="1.1" viewBox="0 0 26.604381 29.144726"><use xlink:href="#file"></use></svg> {{- end}} <span class="name">{{.Name}}</span> </a> </td> {{- if .IsDir}} <td data-order="-1">—</td> {{- else}} <td data-order="{{.Size}}">{{.HumanSize}}</td> {{- end}} <td class="hideable"><time datetime="{{.HumanModTime "2006-01-02T15:04:05Z"}}">{{.HumanModTime "01/02/2006 03:04:05 PM -07:00"}}</time></td> </tr> {{- end}} </tbody> </table> </div> </main> <footer> Served with <a rel="noopener noreferrer" href="https://caddyserver.com">Caddy</a>. </footer> <script type="text/javascript"> function localizeDatetime(e, index, ar) { if (e.textContent === undefined) { return; } var d = new Date(e.getAttribute('datetime')); if (isNaN(d)) { d = new Date(e.textContent); if (isNaN(d)) { return; } } e.textContent = d.toLocaleString(); } var timeList = Array.prototype.slice.call(document.getElementsByTagName("time")); timeList.forEach(localizeDatetime); </script> </body> </html>`