Merge pull request #2 from kanopeld/kanopeld/errors

Implement all matrix errors

errors.go

@@ -0,0 +1,134 @@
+package gomatrix
+
+// RespError is the standard JSON error response from Homeservers. It also implements the Golang "error" interface.
+// See http://matrix.org/docs/spec/client_server/r0.2.0.html#api-standards
+type RespError struct {
+	ErrCode string `json:"errcode"`
+	Err     string `json:"error"`
+}
+
+// Error returns the errcode and error message.
+func (e RespError) Error() string {
+	return e.ErrCode + ": " + e.Err
+}
+
+// Is allow use 'errors.Is' from stdlib
+func (e RespError) Is(err error) bool {
+	target, ok := err.(RespError)
+	if !ok {
+		return false
+	}
+
+	if e.ErrCode == "M_UNKNOWN" && target.ErrCode == "M_UNKNOWN" {
+		return e.Err == target.Err
+	}
+	return e.ErrCode == target.ErrCode
+}
+
+// Common error codes from https://matrix.org/docs/spec/client_server/latest#api-standards
+//
+// Can be used with errors.Is() to check the response code without casting the error:
+//   err := client.SyncRequest()
+//   if errors.Is(err, ErrUnknownToken) {
+//     // logout
+//   }
+var (
+	// ErrForbidden Forbidden access, e.g. joining a room without permission, failed login.
+	ErrForbidden = RespError{ErrCode: "M_FORBIDDEN"}
+
+	// ErrUnknownToken The access token specified was not recognised.
+	ErrUnknownToken = RespError{ErrCode: "M_UNKNOWN_TOKEN"}
+
+	// ErrMissingToken No access token was specified for the request.
+	ErrMissingToken = RespError{ErrCode: "M_MISSING_TOKEN"}
+
+	// ErrBadJSON Request contained valid JSON, but it was malformed in some way, e.g. missing required keys, invalid values for keys.
+	ErrBadJSON = RespError{ErrCode: "M_BAD_JSON"}
+
+	// ErrNotJSON Request did not contain valid JSON.
+	ErrNotJSON = RespError{ErrCode: "M_NOT_JSON"}
+
+	// ErrNotFound No resource was found for this request.
+	ErrNotFound = RespError{ErrCode: "M_NOT_FOUND"}
+
+	// ErrLimitExceeded Too many requests have been sent in a short period of time. Wait a while then try again.
+	ErrLimitExceeded = RespError{ErrCode: "M_LIMIT_EXCEEDED"}
+
+	// ErrUnknown An unknown error has occurred
+	ErrUnknown = RespError{ErrCode: "M_UNKNOWN"}
+
+	// ErrUnrecognuzed The server did not understand the request.
+	ErrUnrecognuzed = RespError{ErrCode: "M_UNRECOGNIZED"}
+
+	// ErrUnauthorized The request was not correctly authorized. Usually due to login failures.
+	ErrUnauthorized = RespError{ErrCode: "M_UNAUTHORIZED"}
+
+	// ErrUserDeactivated The user ID associated with the request has been deactivated.
+	// Typically for endpoints that prove authentication, such as /login.
+	ErrUserDeactivated = RespError{ErrCode: "M_USER_DEACTIVATED"}
+
+	// ErrUserInUse Encountered when trying to register a user ID which has been taken.
+	ErrUserInUse = RespError{ErrCode: "M_USER_IN_USE"}
+
+	// ErrInvalidUsername Encountered when trying to register a user ID which is not valid.
+	ErrInvalidUsername = RespError{ErrCode: "M_INVALID_USERNAME"}
+
+	// ErrRoomInUse Sent when the room alias given to the createRoom API is already in use.
+	ErrRoomInUse = RespError{ErrCode: "M_ROOM_IN_USE"}
+
+	// ErrInvalidRoomState Sent when the initial state given to the createRoom API is invalid
+	ErrInvalidRoomState = RespError{ErrCode: "M_INVALID_ROOM_STATE"}
+
+	// ErrThreepidInUse Sent when a threepid given to an API cannot be used because the same threepid is already in use.
+	ErrThreepidInUse = RespError{ErrCode: "M_THREEPID_IN_USE"}
+
+	// ErrThreepidNotFound Sent when a threepid given to an API cannot be used because no record matching the threepid was found.
+	ErrThreepidNotFound = RespError{ErrCode: "M_THREEPID_NOT_FOUND"}
+
+	// ErrThreepidAuthFailed Authentication could not be performed on the third party identifier.
+	ErrThreepidAuthFailed = RespError{ErrCode: "M_THREEPID_AUTH_FAILED"}
+
+	// ErrThreepidDenied The server does not permit this third party identifier. This may happen if the server only permits, for example, email addresses from a particular domain.
+	ErrThreepidDenied = RespError{ErrCode: "M_THREEPID_DENIED"}
+
+	// ErrServerNotTrusted The client's request used a third party server, eg. identity server, that this server does not trust.
+	ErrServerNotTrusted = RespError{ErrCode: "M_SERVER_NOT_TRUSTED"}
+
+	// ErrUnsupportedRoomVersion The client's request to create a room used a room version that the server does not support.
+	ErrUnsupportedRoomVersion = RespError{ErrCode: "M_UNSUPPORTED_ROOM_VERSION:"}
+
+	// ErrIncompatibleRoomVersion The client attempted to join a room that has a version the server does not support. Inspect the room_version property of the error response for the room's version.
+	ErrIncompatibleRoomVersion = RespError{ErrCode: "M_INCOMPATIBLE_ROOM_VERSION"}
+
+	// ErrBadState The state change requested cannot be performed, such as attempting to unban a user who is not banned.
+	ErrBadState = RespError{ErrCode: "M_BAD_STATE"}
+
+	// ErrGuestAccessForbidden The room or resource does not permit guests to access it.
+	ErrGuestAccessForbidden = RespError{ErrCode: "M_GUEST_ACCESS_FORBIDDEN"}
+
+	// ErrCaptchaNeeded A Captcha is required to complete the request.
+	ErrCaptchaNeeded = RespError{ErrCode: "M_CAPTCHA_NEEDED"}
+
+	// ErrCaptchaInvalid The Captcha provided did not match what was expected.
+	ErrCaptchaInvalid = RespError{ErrCode: "M_CAPTCHA_INVALID"}
+
+	// ErrMissingParam A required parameter was missing from the request.
+	ErrMissingParam = RespError{ErrCode: "M_MISSING_PARAM"}
+
+	// ErrInvalidParam A parameter that was specified has the wrong value. For example, the server expected an integer and instead received a string.
+	ErrInvalidParam = RespError{ErrCode: "M_INVALID_PARAM"}
+
+	// ErrTooLarge The request or entity was too large.
+	ErrTooLarge = RespError{ErrCode: "M_TOO_LARGE"}
+
+	// ErrExclusive The resource being requested is reserved by an application service, or the application service making the request has not created the resource.
+	ErrExclusive = RespError{ErrCode: "M_EXCLUSIVE"}
+
+	// ErrRespuceLimitExceeded The request cannot be completed because the homeserver has reached a resource limit imposed on it. For example, a homeserver held in a shared hosting environment may
+	//reach a resource limit if it starts using too much memory or disk space. The error MUST have an admin_contact field to provide the user receiving the error a place to reach out to.
+	//Typically, this error will appear on routes which attempt to modify state (eg: sending messages, account data, etc) and not routes which only read state (eg: /sync, get account data, etc).
+	ErrRespuceLimitExceeded = RespError{ErrCode: "M_RESOURCE_LIMIT_EXCEEDED"}
+
+	// ErrCannotLeaveServerNoticeRoom The user is unable to reject an invite to join the server notices room.
+	ErrCannotLeaveServerNoticeRoom = RespError{ErrCode: "M_CANNOT_LEAVE_SERVER_NOTICE_ROOM"}
+)

responses.go

@@ -1,18 +1,5 @@
 package gomatrix
 
-// RespError is the standard JSON error response from Homeservers. It also implements the Golang "error" interface.
-// See http://matrix.org/docs/spec/client_server/r0.2.0.html#api-standards
-//easyjson:json
-type RespError struct {
-	ErrCode string `json:"errcode"`
-	Err     string `json:"error"`
-}
-
-// Error returns the errcode and error message.
-func (e RespError) Error() string {
-	return e.ErrCode + ": " + e.Err
-}
-
 // RespCreateFilter is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-user-userid-filter
 //easyjson:json
 type RespCreateFilter struct {