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|
package main
import (
"bufio"
"fmt"
"html/template"
"net/http"
"net/http/cgi"
"os"
"os/exec"
"strings"
"time"
)
type Result struct {
Name string
Version string
URL string
Suite string
}
type ResultPage struct {
Query string
Release string
NumResults int
Time string
Results []Result
}
var resTempl = `
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<link rel="stylesheet" type="text/css" href="/search.css" />
<title>Devuan Package information</title>
<style type="text/css">
code {font-weight: normal;
margin: 0 0px;
padding: 0px 0px;
border: 1px solid #ffffff;
font-size: 95%; }
</style>
<body>
<div class="nav">
<div class="leftfl">
<a href="https://pkginfo.devuan.org" title="Devuan Package Information">
<span>Home</span></a>
<span class="separator">|</span>
<a href="https://devuan.org" title="Devuan website">
<span>Devuan</span></a>
<span class="separator">|</span>
<a href="https://git.devuan.org" title="Devuan gitlab">
<span>Git</span></a>
<span class="separator">|</span>
<a href="https://devuan.org" title="Devuan BTS">
<span>BTS</span></a>
<span class="separator">|</span>
<a href="https://dev1galaxy.org" title="dev1galaxy forum">
<span>Forum</span></a>
<span class="separator">|</span>
<a href="https://popcon.devuan.org" title="Popularity Context">
<span>Popcon</span></a>
</div>
<div class="rightfl-do">
<a title="Please support Devuan development" class="button-do" href="https://devuan.org/os/donate">donate now!</a>
</div>
<div class="rightfl-dl">
<a title="Download Devuan" class="button-dl" href="https://files.devuan.org/">download</a>
</div>
</div>
<div class="wrap">
<h1>Devuan Package information</h1>
<form method="GET" action="/cgi-bin/d1pkgweb-query">
Search Devuan Packages for: <input type="text" name="search"/> in release
<select name="release">
<option value="jessie">Jessie 1.0.0 (oldstable)</option>
<option value="ascii" selected>Ascii 2.0.0 (stable) </option>
<option value="beowulf" >Beowulf (testing)</option>
<option value="ceres" >Ceres (unstable)</option>
<option value="experimental" >Experimental</option>
<option value="any" >Any</option>
</select>
<input type="submit" value="Go!"/>
</form>
<h1>{{.NumResults}} results for <b>"{{.Query}}"</b> in {{.Release}} (in {{.Time}}) </h1>
<ul class="res_list">
{{range .Results}}
<li class="res_item">
<a href="{{.URL}}">[{{.Suite}}] {{.Name}}-{{.Version}}</a>
</li>
{{end}}
</div>
</div>
<p style="margin-top:0px; margin-bottom:20px ; text-align: center;"> This site is a cookie-free zone</p>
<div class="foot">
<p id="copyright" style="white-space: nowrap;">
Copyright (c) 2014-2018 <a href="https://www.dyne.org" data-rel="fiscal sponsor"
title="Learn about our fiscal sponsor">Dyne.org foundation</a>
<span></span>
<a rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/"
title="This work is licensed under a Creative Commons Attribution-ShareAlike
4.0 International License.">CC-BY-SA 4.0 international</a></p>
<p class="trademarks">
Devuan is a registered trademark of the Dyne.org foundation.</p>
<p class="trademarks" style="margin-top: -15px;">
Debian is a registered trademark of Software in the Public Interest, Inc. Linux is a registered trademark of Linus Torvalds.</p>
</div>
</body>
</html>
`
var releaseMap = map[string]string{
"jessie": "index_jessie.txt",
"ascii": "index_ascii.txt",
"beowulf": "index_beowulf.txt",
"ceres": "index_ceres.txt",
"experimental": "index_experimental.txt",
"any": "index.txt"}
func printError(errCode int, errMsg string) {
fmt.Printf("Status:%d %s\r\n", errCode, errMsg)
fmt.Printf("Content-Type: text/plain\r\n")
fmt.Printf("\r\n%s\r\n", errMsg)
}
func parseLines(s string) []Result {
results := make([]Result, 0, 10)
scanner := bufio.NewScanner(strings.NewReader(s))
for scanner.Scan() {
URL := scanner.Text()
URLParts := strings.Split(URL, "/")[1:]
pkgNameVer := strings.Split(URLParts[len(URLParts)-1], ".html")[0]
Name := strings.Split(pkgNameVer, "_")[0]
Version := strings.Split(pkgNameVer, "_")[1]
Suite := URLParts[2]
results = append(results, Result{URL: URL, Name: Name, Version: Version, Suite: Suite})
}
//fmt.Printf("len(results): %d\n", resSize)
return results
}
func pipeComands(commands []*exec.Cmd) ([]byte, error) {
for i, command := range commands[:len(commands)-1] {
out, err := command.StdoutPipe()
if err != nil {
return nil, err
}
command.Start()
commands[i+1].Stdin = out
}
final, err := commands[len(commands)-1].Output()
if err != nil {
return nil, err
}
return final, nil
}
func getResults(req http.Request) (ResultPage, error) {
var res ResultPage
var release string
req.ParseForm()
searchQuery := req.Form["search"]
if len(searchQuery) < 1 {
printError(503, fmt.Sprintf("Something went wrong in parsing query...\r\n%s\r\n", req.Form))
os.Exit(0)
}
res.Query = searchQuery[0]
QueryTerms := strings.Split(res.Query, " ")
selectedRelease := req.Form["release"]
if len(selectedRelease) < 1 {
release = "any"
} else {
release = selectedRelease[0]
}
res.Release = release
fmt.Printf("QueryTerms: %s\n", QueryTerms)
startTime := time.Now()
commands := make([]*exec.Cmd, 0)
cmd := "grep"
args := []string{QueryTerms[0], releaseMap[release]}
commands = append(commands, exec.Command(cmd, args...))
for _, word := range QueryTerms[1:] {
args = []string{word}
fmt.Printf("word: %s\r\n", word)
commands = append(commands, exec.Command(cmd, args...))
}
//if cmdOut, err := exec.Command(cmd, args...).Output(); err != nil {
if cmdOut, err := pipeComands(commands); err != nil {
fmt.Printf("error executing command: %s", err)
res.Time = fmt.Sprintf("%s", time.Since(startTime))
return res, nil
} else {
res.Results = parseLines(string(cmdOut[:len(cmdOut)]))
res.NumResults = len(res.Results)
res.Time = fmt.Sprintf("%s", time.Since(startTime))
}
return res, nil
}
func printResults(results ResultPage) {
t, err := template.New("webpage").Parse(resTempl)
if err != nil {
printError(502, "Something went wrong...")
return
}
fmt.Printf("Status: 200 OK\r\n")
fmt.Printf("Content-Type: text/html\r\n")
t.Execute(os.Stdout, results)
}
func main() {
var req *http.Request
var err error
req, err = cgi.Request()
if err != nil {
printError(500, "cannot get requested resource"+err.Error())
return
}
res, err := getResults(*req)
if err != nil {
printError(404, fmt.Sprintf("%s", err))
} else {
printResults(res)
}
}
|
