1 files changed, 139 insertions, 0 deletions
diff --git a/d1pkgweb-query.go b/d1pkgweb-query.go
new file mode 100644
index 0000000..a6514b5
--- /dev/null
+++ b/d1pkgweb-query.go
@@ -0,0 +1,139 @@
+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
+}
+
+type ResultPage struct {
+	Query      string
+	NumResults int
+	Time       string
+	Results    []Result
+}
+
+var resTempl = `
+<html>
+<title>Results</title>
+<body>
+
+<form method="GET" action="/cgi-bin/d1pkgweb-query">
+Search Devuan Packages for: <input type="text" name="search"/>
+<input type="submit" value="Go!"/>
+</form>
+
+
+<div class="title">{{.NumResults}} results for <b>{{.Query}} (in {{.Time}})</b>  </div>
+
+<ul class="res_list">
+{{range .Results}} 
+<li class="res_item">
+  <a href="{{.URL}}">{{.Name}}-{{.Version}}</a>
+</li>
+{{end}}
+</div>
+
+
+</body>
+</html>
+
+`
+
+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, "/")
+		pkgNameVer := strings.Split(URLParts[len(URLParts)-1], ".html")[0]
+		Name := strings.Split(pkgNameVer, "_")[0]
+		Version := strings.Split(pkgNameVer, "_")[1]
+		results = append(results, Result{URL: URL, Name: Name, Version: Version})
+	}
+	//fmt.Printf("len(results): %d\n", resSize)
+	return results
+}
+
+func getResults(req http.Request) (ResultPage, error) {
+
+	var res ResultPage
+
+	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]
+
+	startTime := time.Now()
+
+	cmd := "grep"
+	args := []string{res.Query, "index.txt"}
+	if cmdOut, err := exec.Command(cmd, args...).Output(); 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)
+	}
+
+}