Files
remark42/backend/app/rest/httperrors.go
T
Andrei AlikovandUmputun 653125d525 Hanlde limiter rejection on UI side (#275)
- Adds common function to get error message from the http response
- Adds error message for the voting displayed under the voting buttons
- Adds restoring of voting data after voting request failed

fixed re-writing error message when user tries to vote for the same comment
2019-02-12 09:35:14 -06:00

70 lines
2.5 KiB
Go

package rest
import (
"fmt"
"net/http"
"net/url"
"runtime"
"strings"
"github.com/go-chi/render"
log "github.com/go-pkgz/lgr"
"github.com/go-pkgz/rest"
)
// All error codes for UI mapping and translation
const (
ErrInternal = 0 // any internal error
ErrCommentNotFound = 1 // can't find comment
ErrDecode = 2 // failed to unmarshal incoming request
ErrNoAccess = 3 // rejected by auth
ErrCommentValidation = 4 // validation failed
ErrPostNotFound = 5 // can't find post
ErrSiteNotFound = 6 // can't find site
ErrUserBlocked = 7 // user blocked
ErrReadOnly = 8 // write failed on read only
ErrCommentRejected = 9 // general error on rejected comment change
ErrCommentEditExpired = 10 // too late for edit
ErrCommentEditChanged = 11 // parent comment cannot be changed
ErrVoteRejected = 12 // general error on vote rejected
ErrVoteSelf = 13 // vote for own comment
ErrVoteDbl = 14 // already voted for the comment
ErrVoteMax = 15 // too many votes for the comment
ErrVoteMinScore = 16 // min score reached for the comment
ErrActionRejected = 17 // general error for rejected actions
ErrAssetNotFound = 18 // requested file not found
)
// SendErrorJSON makes {error: blah, details: blah} json body and responds with error code
func SendErrorJSON(w http.ResponseWriter, r *http.Request, httpStatusCode int, err error, details string, errCode int) {
log.Printf("[DEBUG] %s", errDetailsMsg(r, httpStatusCode, err, details, errCode))
render.Status(r, httpStatusCode)
render.JSON(w, r, rest.JSON{"error": err.Error(), "details": details, "code": errCode})
}
func errDetailsMsg(r *http.Request, httpStatusCode int, err error, details string, errCode int) string {
uinfoStr := ""
if user, e := GetUserInfo(r); e == nil {
uinfoStr = user.Name + "/" + user.ID + " - "
}
q := r.URL.String()
if qun, e := url.QueryUnescape(q); e == nil {
q = qun
}
srcFileInfo := ""
if pc, file, line, ok := runtime.Caller(2); ok {
fnameElems := strings.Split(file, "/")
funcNameElems := strings.Split(runtime.FuncForPC(pc).Name(), "/")
srcFileInfo = fmt.Sprintf(" [caused by %s:%d %s]", strings.Join(fnameElems[len(fnameElems)-3:], "/"),
line, funcNameElems[len(funcNameElems)-1])
}
remoteIP := r.RemoteAddr
if pos := strings.Index(remoteIP, ":"); pos >= 0 {
remoteIP = remoteIP[:pos]
}
return fmt.Sprintf("%s - %v - %d (%d) - %s%s - %s%s",
details, err, httpStatusCode, errCode, uinfoStr, remoteIP, q, srcFileInfo)
}