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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1,5 @@ | ||
| *.db | ||
| *.db | ||
| *.pem | ||
| *config.yaml | ||
|
|
||
| .DS_Store |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,194 @@ | ||
| package server | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "io" | ||
| "log" | ||
| "net/http" | ||
| "strconv" | ||
| "strings" | ||
| ) | ||
|
|
||
| // NewGoCertRouter takes in an environment struct, passes it along to any handlers that will need | ||
| // access to it, then builds and returns it for a server to consume | ||
| func NewGoCertRouter(env *Environment) http.Handler { | ||
| router := http.NewServeMux() | ||
| router.HandleFunc("GET /certificate_requests", GetCertificateRequests(env)) | ||
| router.HandleFunc("POST /certificate_requests", PostCertificateRequest(env)) | ||
| router.HandleFunc("GET /certificate_requests/{id}", GetCertificateRequest(env)) | ||
| router.HandleFunc("DELETE /certificate_requests/{id}", DeleteCertificateRequest(env)) | ||
| router.HandleFunc("POST /certificate_requests/{id}/certificate", PostCertificate(env)) | ||
| router.HandleFunc("DELETE /certificate_requests/{id}/certificate", DeleteCertificate(env)) | ||
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| v1 := http.NewServeMux() | ||
| v1.HandleFunc("GET /status", HealthCheck) | ||
| v1.Handle("/api/v1/", http.StripPrefix("/api/v1", router)) | ||
|
|
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| return logging(v1) | ||
| } | ||
|
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| // the health check endpoint simply returns a http.StatusOK | ||
| func HealthCheck(w http.ResponseWriter, r *http.Request) { | ||
| w.WriteHeader(http.StatusOK) //nolint:errcheck | ||
| } | ||
|
|
||
| // GetCertificateRequests returns all of the Certificate Requests | ||
| func GetCertificateRequests(env *Environment) http.HandlerFunc { | ||
| return func(w http.ResponseWriter, r *http.Request) { | ||
| certs, err := env.DB.RetrieveAll() | ||
| if err != nil { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| return | ||
| } | ||
| body, err := json.Marshal(certs) | ||
| if err != nil { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| return | ||
| } | ||
| if _, err := w.Write(body); err != nil { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // PostCertificateRequest creates a new Certificate Request, and returns the id of the created row | ||
| func PostCertificateRequest(env *Environment) http.HandlerFunc { | ||
| return func(w http.ResponseWriter, r *http.Request) { | ||
| csr, err := io.ReadAll(r.Body) | ||
| if err != nil { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| return | ||
| } | ||
| id, err := env.DB.Create(string(csr)) | ||
| if err != nil { | ||
| if strings.Contains(err.Error(), "UNIQUE constraint failed") { | ||
| logErrorAndWriteResponse("given csr already recorded", http.StatusBadRequest, w) | ||
| return | ||
| } | ||
| if strings.Contains(err.Error(), "csr validation failed") { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusBadRequest, w) | ||
| return | ||
| } | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| return | ||
| } | ||
| w.WriteHeader(http.StatusCreated) | ||
| if _, err := w.Write([]byte(strconv.FormatInt(id, 10))); err != nil { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // GetCertificateRequests receives an id as a path parameter, and | ||
| // returns the corresponding Certificate Request | ||
| func GetCertificateRequest(env *Environment) http.HandlerFunc { | ||
| return func(w http.ResponseWriter, r *http.Request) { | ||
| id := r.PathValue("id") | ||
| cert, err := env.DB.Retrieve(id) | ||
| if err != nil { | ||
| if err.Error() == "csr id not found" { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusBadRequest, w) | ||
| return | ||
| } | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| return | ||
| } | ||
| body, err := json.Marshal(cert) | ||
| if err != nil { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| return | ||
| } | ||
| if _, err := w.Write(body); err != nil { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // DeleteCertificateRequest handler receives an id as a path parameter, | ||
| // deletes the corresponding Certificate Request, and returns a http.StatusNoContent on success | ||
| func DeleteCertificateRequest(env *Environment) http.HandlerFunc { | ||
| return func(w http.ResponseWriter, r *http.Request) { | ||
| id := r.PathValue("id") | ||
| insertId, err := env.DB.Delete(id) | ||
| if err != nil { | ||
| if err.Error() == "csr id not found" { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusBadRequest, w) | ||
| return | ||
| } | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| return | ||
| } | ||
| w.WriteHeader(http.StatusAccepted) | ||
| if _, err := w.Write([]byte(strconv.FormatInt(insertId, 10))); err != nil { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // PostCertificate handler receives an id as a path parameter, | ||
| // and attempts to add a given certificate to the corresponding certificate request | ||
| func PostCertificate(env *Environment) http.HandlerFunc { | ||
| return func(w http.ResponseWriter, r *http.Request) { | ||
| cert, err := io.ReadAll(r.Body) | ||
| if err != nil { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusBadRequest, w) | ||
| return | ||
| } | ||
| id := r.PathValue("id") | ||
| insertId, err := env.DB.Update(id, string(cert)) | ||
| if err != nil { | ||
| if err.Error() == "csr id not found" || | ||
| err.Error() == "certificate does not match CSR" || | ||
| strings.Contains(err.Error(), "cert validation failed") { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusBadRequest, w) | ||
| return | ||
| } | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| return | ||
| } | ||
| w.WriteHeader(http.StatusCreated) | ||
| if _, err := w.Write([]byte(strconv.FormatInt(insertId, 10))); err != nil { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // DeleteCertificate handler receives an id as a path parameter, | ||
| // and attempts to add a given certificate to the corresponding certificate request | ||
| func DeleteCertificate(env *Environment) http.HandlerFunc { | ||
| return func(w http.ResponseWriter, r *http.Request) { | ||
| id := r.PathValue("id") | ||
| insertId, err := env.DB.Update(id, "") | ||
| if err != nil { | ||
| if err.Error() == "csr id not found" { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusBadRequest, w) | ||
| return | ||
| } | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| return | ||
| } | ||
| w.WriteHeader(http.StatusAccepted) | ||
| if _, err := w.Write([]byte(strconv.FormatInt(insertId, 10))); err != nil { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // The logging middleware captures any http request coming through, and logs it | ||
| func logging(next http.Handler) http.Handler { | ||
| return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| next.ServeHTTP(w, r) | ||
| log.Println(r.Method, r.URL.Path) | ||
| }) | ||
| } | ||
|
|
||
| // logErrorAndWriteResponse is a helper function that logs any error and writes it back as an http response | ||
| func logErrorAndWriteResponse(msg string, status int, w http.ResponseWriter) { | ||
| errMsg := fmt.Sprintf("error: %s", msg) | ||
| log.Println(errMsg) | ||
| w.WriteHeader(status) | ||
| if _, err := w.Write([]byte(errMsg)); err != nil { | ||
| logErrorAndWriteResponse(err.Error(), http.StatusInternalServerError, w) | ||
| } | ||
| } |
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