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http.go
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/
http.go
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// Copyright 2016 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
package main
import (
"fmt"
"html/template"
"net"
"net/http"
"sort"
"strings"
. "github.com/google/syzkaller/pkg/log"
)
func (hub *Hub) initHttp(addr string) {
http.HandleFunc("/", hub.httpSummary)
ln, err := net.Listen("tcp4", addr)
if err != nil {
Fatalf("failed to listen on %v: %v", addr, err)
}
Logf(0, "serving http on http://%v", ln.Addr())
go func() {
err := http.Serve(ln, nil)
Fatalf("failed to serve http: %v", err)
}()
}
func (hub *Hub) httpSummary(w http.ResponseWriter, r *http.Request) {
hub.mu.Lock()
defer hub.mu.Unlock()
data := &UISummaryData{
Log: CachedLogOutput(),
}
total := UIManager{
Name: "total",
Corpus: len(hub.st.Corpus.Records),
}
for name, mgr := range hub.st.Managers {
total.Added += mgr.Added
total.Deleted += mgr.Added
total.New += mgr.New
data.Managers = append(data.Managers, UIManager{
Name: name,
Corpus: len(mgr.Corpus.Records),
Added: mgr.Added,
Deleted: mgr.Deleted,
New: mgr.New,
})
}
sort.Sort(UIManagerArray(data.Managers))
data.Managers = append([]UIManager{total}, data.Managers...)
if err := summaryTemplate.Execute(w, data); err != nil {
Logf(0, "failed to execute template: %v", err)
http.Error(w, fmt.Sprintf("failed to execute template: %v", err), http.StatusInternalServerError)
return
}
}
func compileTemplate(html string) *template.Template {
return template.Must(template.New("").Parse(strings.Replace(html, "{{STYLE}}", htmlStyle, -1)))
}
type UISummaryData struct {
Managers []UIManager
Log string
}
type UIManager struct {
Name string
Corpus int
Added int
Deleted int
New int
}
type UIManagerArray []UIManager
func (a UIManagerArray) Len() int { return len(a) }
func (a UIManagerArray) Less(i, j int) bool { return a[i].Name < a[j].Name }
func (a UIManagerArray) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
var summaryTemplate = compileTemplate(`
<!doctype html>
<html>
<head>
<title>syz-hub</title>
{{STYLE}}
</head>
<body>
<b>syz-hub</b>
<br><br>
<table>
<caption>Managers:</caption>
<tr>
<th>Name</th>
<th>Corpus</th>
<th>Added</th>
<th>Deleted</th>
<th>New</th>
</tr>
{{range $m := $.Managers}}
<tr>
<td>{{$m.Name}}</td>
<td>{{$m.Corpus}}</td>
<td>{{$m.Added}}</td>
<td>{{$m.Deleted}}</td>
<td>{{$m.New}}</td>
</tr>
{{end}}
</table>
<br><br>
Log:
<br>
<textarea id="log_textarea" readonly rows="50">
{{.Log}}
</textarea>
<script>
var textarea = document.getElementById("log_textarea");
textarea.scrollTop = textarea.scrollHeight;
</script>
</body></html>
`)
const htmlStyle = `
<style type="text/css" media="screen">
table {
border-collapse:collapse;
border:1px solid;
}
table caption {
font-weight: bold;
}
table td {
border:1px solid;
padding: 3px;
}
table th {
border:1px solid;
padding: 3px;
}
textarea {
width:100%;
}
</style>
`