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2 Commits
e90b6a57d8
...
efa824357f
Author | SHA1 | Date |
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Valentin Carroy | efa824357f | |
Valentin Carroy | 5c070dc16d |
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@ -2,7 +2,6 @@ package api
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import (
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"context"
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"encoding/base64"
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"encoding/json"
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"fmt"
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"log/slog"
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@ -21,9 +20,14 @@ type Server struct {
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baseUrl string
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port string
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client client.Client
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config config.Config
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}
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func (s *Server) Run(ctx context.Context) {
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if s.config.Debug {
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slog.SetLogLoggerLevel(slog.LevelDebug)
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}
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r := chi.NewRouter()
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r.Use(middleware.Logger)
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@ -36,8 +40,7 @@ func (s *Server) Run(ctx context.Context) {
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})
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r.Get(s.baseUrl+"/request", s.requestHandler)
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r.Post(s.baseUrl+"/verify", s.submitHandler)
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r.Post(s.baseUrl+"/verify-spam-filter", s.submitSpamFilterHandler)
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logger.Info(ctx, "altcha server listening on port "+s.port)
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if err := http.ListenAndServe(":"+s.port, r); err != nil {
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logger.Error(ctx, err.Error())
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@ -48,101 +51,55 @@ func (s *Server) requestHandler(w http.ResponseWriter, r *http.Request) {
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challenge, err := s.client.Generate()
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if err != nil {
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slog.Debug("Failed to create challenge,", "error", err)
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http.Error(w, fmt.Sprintf("Failed to create challenge : %s", err), http.StatusInternalServerError)
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slog.Error(err.Error())
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return
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}
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writeJSON(w, challenge)
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w.Header().Set("Content-Type", "application/json")
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err = json.NewEncoder(w).Encode(challenge)
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if err != nil {
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slog.Debug("Failed to encode JSON", "error", err)
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http.Error(w, "Failed to encode JSON", http.StatusInternalServerError)
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return
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}
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}
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func (s *Server) submitHandler(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodPost {
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http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
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return
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}
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formData := r.FormValue("altcha")
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if formData == "" {
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http.Error(w, "Atlcha payload missing", http.StatusBadRequest)
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return
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}
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decodedPayload, err := base64.StdEncoding.DecodeString(formData)
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if err != nil {
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http.Error(w, "Failed to decode Altcha payload", http.StatusBadRequest)
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return
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}
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var payload map[string]interface{}
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if err := json.Unmarshal(decodedPayload, &payload); err != nil {
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err := json.NewDecoder(r.Body).Decode(&payload)
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if err != nil {
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slog.Debug("Failed to parse Altcha payload,", "error", err)
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http.Error(w, "Failed to parse Altcha payload", http.StatusBadRequest)
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return
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}
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verified, err := s.client.VerifySolution(payload)
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if err != nil || !verified {
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http.Error(w, "Invalid Altcha payload", http.StatusBadRequest)
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return
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}
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writeJSON(w, map[string]interface{}{
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"success": true,
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"data": formData,
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})
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}
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func (s *Server) submitSpamFilterHandler(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodPost {
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http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
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return
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}
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formData, err := formToMap(r)
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if err != nil {
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http.Error(w, "Cannot read form data", http.StatusBadRequest)
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slog.Error(err.Error())
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slog.Debug("Invalid Altcha payload", "error", err)
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http.Error(w, "Invalid Altcha payload,", http.StatusBadRequest)
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return
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}
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payload := r.FormValue("altcha")
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if payload == "" {
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http.Error(w, "Atlcha payload missing", http.StatusBadRequest)
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if !verified {
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slog.Debug("Invalid solution")
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http.Error(w, "Invalid solution,", http.StatusBadRequest)
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return
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}
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verified, verificationData, err := s.client.VerifyServerSignature(payload)
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if err != nil || !verified {
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http.Error(w, "Invalid Altcha payload", http.StatusBadRequest)
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slog.Error(err.Error())
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return
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}
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if verificationData.Verified && verificationData.Expire > time.Now().Unix() {
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if verificationData.Classification == "BAD" {
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http.Error(w, "Classified as spam", http.StatusBadRequest)
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return
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w.Header().Set("Content-Type", "application/json")
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err = json.NewEncoder(w).Encode(map[string]interface{}{
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"success": true,
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"data": payload,
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})
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if err != nil {
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if s.config.Debug {
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slog.Debug("Failed to encode JSON", "error", err)
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}
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if verificationData.FieldsHash != "" {
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verified, err := s.client.VerifyFieldsHash(formData, verificationData.Fields, verificationData.FieldsHash)
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if err != nil || !verified {
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http.Error(w, "Invalid fields hash", http.StatusBadRequest)
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slog.Error(err.Error())
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return
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}
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}
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writeJSON(w, map[string]interface{}{
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"success": true,
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"data": formData,
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"verificationData": verificationData,
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})
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http.Error(w, "Failed to encode JSON", http.StatusInternalServerError)
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return
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}
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http.Error(w, "Invalid Altcha payload", http.StatusBadRequest)
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}
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func corsMiddleware(next http.Handler) http.Handler {
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@ -160,21 +117,6 @@ func corsMiddleware(next http.Handler) http.Handler {
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})
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}
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func writeJSON(w http.ResponseWriter, data interface{}) {
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w.Header().Set("Content-Type", "application/json")
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if err := json.NewEncoder(w).Encode(data); err != nil {
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http.Error(w, "Failed to encode JSON", http.StatusInternalServerError)
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}
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}
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func formToMap(r *http.Request) (map[string][]string, error) {
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if err := r.ParseForm(); err != nil {
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return nil, err
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}
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return r.Form, nil
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}
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func NewServer(cfg config.Config) (*Server, error) {
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expirationDuration, err := time.ParseDuration(cfg.Expire+"s")
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if err != nil {
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@ -191,5 +133,6 @@ func NewServer(cfg config.Config) (*Server, error) {
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baseUrl: cfg.BaseUrl,
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port: cfg.Port,
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client: *client,
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config: cfg,
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}, nil
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}
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@ -2,7 +2,6 @@ package command
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import (
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"context"
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"fmt"
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"os"
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"sort"
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@ -17,27 +16,6 @@ func Main(commands ...*cli.Command) {
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Name: "altcha-server",
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Usage: "create challenges and validate solutions for atlcha captcha",
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Commands: commands,
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Flags: []cli.Flag{
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&cli.BoolFlag{
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Name: "debug",
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EnvVars: []string{"ALTCHA_DEBUG"},
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Value: false,
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},
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},
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}
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app.ExitErrHandler = func (ctx *cli.Context, err error) {
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if err == nil {
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return
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}
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debug := ctx.Bool("debug")
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if !debug {
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fmt.Printf("[ERROR] %v\n", err)
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} else {
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fmt.Printf("%+v", err)
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}
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}
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sort.Sort(cli.FlagsByName(app.Flags))
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@ -2,7 +2,6 @@ package command
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import (
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"forge.cadoles.com/cadoles/altcha-server/internal/api"
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"forge.cadoles.com/cadoles/altcha-server/internal/command/common"
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"forge.cadoles.com/cadoles/altcha-server/internal/config"
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"github.com/caarlos0/env/v11"
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"github.com/urfave/cli/v2"
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@ -10,12 +9,9 @@ import (
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)
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func RunCommand() *cli.Command {
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flags := common.Flags()
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return &cli.Command{
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Name: "run",
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Usage: "run the atlcha api server",
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Flags: flags,
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Action: func(ctx *cli.Context) error {
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cfg := config.Config{}
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if err := env.Parse(&cfg); err != nil {
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@ -5,7 +5,6 @@ import (
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"time"
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"forge.cadoles.com/cadoles/altcha-server/internal/client"
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"forge.cadoles.com/cadoles/altcha-server/internal/command/common"
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"forge.cadoles.com/cadoles/altcha-server/internal/config"
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"github.com/caarlos0/env/v11"
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"github.com/urfave/cli/v2"
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@ -13,12 +12,9 @@ import (
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)
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func SolveCommand() *cli.Command {
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flags := common.Flags()
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return &cli.Command{
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Name: "solve",
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Usage: "solve the challenge and return the solution",
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Flags: flags,
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Args: true,
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ArgsUsage: "[CHALLENGE] [SALT]",
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Action: func(ctx *cli.Context) error {
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@ -6,7 +6,6 @@ import (
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"time"
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"forge.cadoles.com/cadoles/altcha-server/internal/client"
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"forge.cadoles.com/cadoles/altcha-server/internal/command/common"
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"forge.cadoles.com/cadoles/altcha-server/internal/config"
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"github.com/altcha-org/altcha-lib-go"
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"github.com/caarlos0/env/v11"
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@ -15,12 +14,9 @@ import (
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)
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func VerifyCommand() *cli.Command {
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flags := common.Flags()
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return &cli.Command{
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Name: "verify",
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Usage: "verify the solution",
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Flags: flags,
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Args: true,
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ArgsUsage: "[challenge] [salt] [signature] [solution]",
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Action: func(ctx *cli.Context) error {
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@ -9,4 +9,5 @@ type Config struct {
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Salt string `env:"ALTCHA_SALT"`
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Expire string `env:"ALTCHA_EXPIRE" envDefault:"600"`
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CheckExpire bool `env:"ALTCHA_CHECK_EXPIRE" envDefault:"1"`
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Debug bool `env:"ALTCHA_DEBUG" envDefault:"false"`
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}
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