caddy/caddyhttp/browse/setup.go
Matthew Holt a798e0c951 Refactor how caddy.Context is stored and used
- Server types no longer need to store their own contexts; they are
  stored on the caddy.Instance, which means each context will be
  properly GC'ed when the instance is stopped. Server types should use
  type assertions to convert from caddy.Context to their concrete
  context type when they need to use it.
- Pass the entire context into httpserver.GetConfig instead of only the
  Key field.
- caddy.NewTestController now requires a server type string so it can
  create a controller with the proper concrete context associated with
  that server type.

Tests still need more attention so that we can test the proper creation
of startup functions, etc.
2016-06-20 11:59:23 -06:00

428 lines
12 KiB
Go

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;
}
tr:not(:first-child):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>&mdash;</td>
<td class="hideable">&mdash;</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">&mdash;</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>`