Erik Brakkee
2c42f89547
The structure of converge server is now much more clear in the package // structure below pkg/server.
71 lines
2.0 KiB
Go
71 lines
2.0 KiB
Go
package ui
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import (
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"fmt"
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"github.com/gliderlabs/ssh"
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"math/rand"
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"net/http"
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"regexp"
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"strconv"
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"strings"
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)
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func GenerateCLIExammples(w http.ResponseWriter, r *http.Request) {
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err := r.ParseForm()
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if err != nil {
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http.Error(w, "Error parsing form", http.StatusBadRequest)
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return
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}
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id := r.FormValue("rendez-vous-id")
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generatedId := false
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if id == "" {
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id = strconv.Itoa(rand.Int() % 1000000)
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generatedId = true
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}
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remoteShells := r.Form["remote-shell"]
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localShells := r.Form["local-shell"]
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keysString := r.FormValue("ssh-keys")
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access := getConvergeAccess(r)
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downloadCommand := r.FormValue("download-command")
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certificateValidation := r.FormValue("certificate-validation") != ""
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sshPublicKeys := strings.Split(keysString, "\n")
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usageInputs := NewUsageInputs(id, sshPublicKeys, remoteShells, localShells, downloadCommand,
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certificateValidation)
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if generatedId {
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usageInputs.ErrorMessages = append(usageInputs.ErrorMessages, "rendez-vous id is randomly generated, changes on every page refresh")
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}
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matched, _ := regexp.MatchString("^[a-zA-Z0-9-_]+$", id)
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if !matched {
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usageInputs.ErrorMessages = append(usageInputs.ErrorMessages, "ID may consist only of alphanumeric characters, '-', and '_'")
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}
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validPubKeys := 0
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for index, pubkey := range sshPublicKeys {
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pubkey = strings.TrimSpace(pubkey)
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if pubkey == "" {
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continue
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}
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_, _, _, _, err := ssh.ParseAuthorizedKey([]byte(pubkey))
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if err != nil {
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keysummary := pubkey
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if len(pubkey) > 45 {
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keysummary = keysummary[:20] + " ... " + keysummary[len(pubkey)-20:]
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}
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usageInputs.ErrorMessages = append(usageInputs.ErrorMessages,
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fmt.Sprintf("ssh public key line %d: %s: %s", index+1, keysummary, err.Error()))
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} else {
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validPubKeys++
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}
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}
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if validPubKeys == 0 {
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usageInputs.ErrorMessages = append(usageInputs.ErrorMessages,
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"No valid public keys configured. Without these the agent will not work.")
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}
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err = ShellUsage(access, usageInputs).Render(r.Context(), w)
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if err != nil {
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http.Error(w, err.Error(), 500)
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}
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}
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