telegramAnswerBytes = 16 << 20
)
-// newTelegramAPI returns the client of the Bot API at base with token.
-func newTelegramAPI(base, token string) *TelegramAPI {
- return &TelegramAPI{
- base: base,
- token: token,
- http: &http.Client{},
- }
+// TelegramAPI calls the Telegram Bot API. The bot token is a part of each URL,
+// so no error of TelegramAPI holds a URL, a net/http error, or the token.
+type TelegramAPI struct {
+ base string
+ token string
+ http *http.Client
}
-// telegramRetryable tells if a later try of a failed Bot API call can work:
-// after a network error, HTTP 429, or a server error. It returns the wait that
-// the Bot API asks for, or 0.
-func telegramRetryable(err error) (bool, time.Duration) {
- var network *TelegramNetworkError
+// TelegramNetworkError tells that a Bot API call got no valid answer, such as
+// after a network error. A later call can work. Cause tells why in plain words,
+// with no URL and no token.
+type TelegramNetworkError struct {
+ Cause string
+}
- if errors.As(err, &network) {
- return true, 0
- }
+// TelegramError is an answer of the Bot API that tells of a failure. Its text
+// gives the HTTP status and the description, such as "502 Bad Gateway".
+// RetryAfter is the wait that the Bot API asks for after HTTP 429. Refused
+// tells that the answer is a Bot API answer with ok false, not a page of a
+// proxy or of a server error.
+type TelegramError struct {
+ Status int
+ Description string
+ RetryAfter time.Duration
+ Refused bool
+}
- var answer *TelegramError
+// TelegramUpdate is one update of getUpdates. Message is nil for the kinds of
+// updates that are not a new message.
+type TelegramUpdate struct {
+ UpdateID int64 `json:"update_id"`
+ Message *TelegramMessage `json:"message"`
+}
- if errors.As(err, &answer) {
- return answer.Status == http.StatusTooManyRequests || answer.Status >= 500, answer.RetryAfter
- }
+// TelegramEntity is a message entity of sendMessage: a part of the text with a
+// format, such as bold or a link. Offset and Length count UTF-16 code units.
+// URL is the target of a text_link, and Language the language of a pre.
+type TelegramEntity struct {
+ Type string `json:"type"`
+ Offset int `json:"offset"`
+ Length int `json:"length"`
+ URL string `json:"url,omitempty"`
+ Language string `json:"language,omitempty"`
+}
- return false, 0
+// TelegramAnswer is the envelope of each answer of the Bot API.
+type TelegramAnswer struct {
+ OK bool `json:"ok"`
+ Result json.RawMessage `json:"result"`
+ ErrorCode int `json:"error_code"`
+ Description string `json:"description"`
+ Parameters struct {
+ RetryAfter int `json:"retry_after"`
+ } `json:"parameters"`
}
-// telegramRejected tells if the Bot API refused a call with ok false and HTTP
-// 400 or 404. Then the call did nothing: 400 refuses the request, and 404 tells
-// that the method is not there. An error page with no Bot API answer does not
-// tell this, so it is not a refusal.
-func telegramRejected(err error) bool {
- var answer *TelegramError
+// TelegramMessage holds text and supported media metadata of a bot message.
+type TelegramMessage struct {
+ Chat TelegramChat `json:"chat"`
+ From *TelegramUser `json:"from"`
+ Text string `json:"text"`
+ Caption string `json:"caption"`
+ Photo []TelegramPhoto `json:"photo"`
+ Document *TelegramDocument `json:"document"`
+ Voice *TelegramVoice `json:"voice"`
+}
- return errors.As(err, &answer) && answer.Refused && (answer.Status == http.StatusBadRequest || answer.Status == http.StatusNotFound)
+// TelegramVoice identifies a voice note in the authenticated file API.
+type TelegramVoice struct {
+ FileID string `json:"file_id"`
+ FileSize int64 `json:"file_size"`
}
-// TelegramAPI calls the Telegram Bot API. The bot token is a part of each URL,
-// so no error of TelegramAPI holds a URL, a net/http error, or the token.
-type TelegramAPI struct {
- base string
- token string
- http *http.Client
+// TelegramPhoto is one supplied size of a photo.
+type TelegramPhoto struct {
+ FileID string `json:"file_id"`
+ Width int `json:"width"`
+ Height int `json:"height"`
+ FileSize int64 `json:"file_size"`
+}
+
+// TelegramDocument is a file sent without photo compression.
+type TelegramDocument struct {
+ FileID string `json:"file_id"`
+ MimeType string `json:"mime_type"`
+ FileSize int64 `json:"file_size"`
+}
+
+// TelegramChat is the chat of a message. Type is private for a chat with one
+// user.
+type TelegramChat struct {
+ ID int64 `json:"id"`
+ Type string `json:"type"`
+}
+
+// TelegramUser is the sender of a message.
+type TelegramUser struct {
+ ID int64 `json:"id"`
+}
+
+// newTelegramAPI returns the client of the Bot API at base with token.
+func newTelegramAPI(base, token string) *TelegramAPI {
+ return &TelegramAPI{
+ base: base,
+ token: token,
+ http: &http.Client{},
+ }
}
// GetUpdates waits for the updates from offset on, up to
return strings.ReplaceAll(err.Error(), b.token, "TOKEN")
}
-// TelegramNetworkError tells that a Bot API call got no valid answer, such as
-// after a network error. A later call can work. Cause tells why in plain words,
-// with no URL and no token.
-type TelegramNetworkError struct {
- Cause string
-}
-
func (e *TelegramNetworkError) Error() string {
return e.Cause
}
-// TelegramError is an answer of the Bot API that tells of a failure. Its text
-// gives the HTTP status and the description, such as "502 Bad Gateway".
-// RetryAfter is the wait that the Bot API asks for after HTTP 429. Refused
-// tells that the answer is a Bot API answer with ok false, not a page of a
-// proxy or of a server error.
-type TelegramError struct {
- Status int
- Description string
- RetryAfter time.Duration
- Refused bool
-}
-
func (e *TelegramError) Error() string {
return fmt.Sprintf("%d %s", e.Status, e.Description)
}
-// TelegramUpdate is one update of getUpdates. Message is nil for the kinds of
-// updates that are not a new message.
-type TelegramUpdate struct {
- UpdateID int64 `json:"update_id"`
- Message *TelegramMessage `json:"message"`
-}
-
-// TelegramEntity is a message entity of sendMessage: a part of the text with a
-// format, such as bold or a link. Offset and Length count UTF-16 code units.
-// URL is the target of a text_link, and Language the language of a pre.
-type TelegramEntity struct {
- Type string `json:"type"`
- Offset int `json:"offset"`
- Length int `json:"length"`
- URL string `json:"url,omitempty"`
- Language string `json:"language,omitempty"`
-}
-
-// TelegramAnswer is the envelope of each answer of the Bot API.
-type TelegramAnswer struct {
- OK bool `json:"ok"`
- Result json.RawMessage `json:"result"`
- ErrorCode int `json:"error_code"`
- Description string `json:"description"`
- Parameters struct {
- RetryAfter int `json:"retry_after"`
- } `json:"parameters"`
-}
+// telegramRetryable tells if a later try of a failed Bot API call can work:
+// after a network error, HTTP 429, or a server error. It returns the wait that
+// the Bot API asks for, or 0.
+func telegramRetryable(err error) (bool, time.Duration) {
+ var network *TelegramNetworkError
-// TelegramMessage holds text and supported media metadata of a bot message.
-type TelegramMessage struct {
- Chat TelegramChat `json:"chat"`
- From *TelegramUser `json:"from"`
- Text string `json:"text"`
- Caption string `json:"caption"`
- Photo []TelegramPhoto `json:"photo"`
- Document *TelegramDocument `json:"document"`
- Voice *TelegramVoice `json:"voice"`
-}
+ if errors.As(err, &network) {
+ return true, 0
+ }
-// TelegramVoice identifies a voice note in the authenticated file API.
-type TelegramVoice struct {
- FileID string `json:"file_id"`
- FileSize int64 `json:"file_size"`
-}
+ var answer *TelegramError
-// TelegramPhoto is one supplied size of a photo.
-type TelegramPhoto struct {
- FileID string `json:"file_id"`
- Width int `json:"width"`
- Height int `json:"height"`
- FileSize int64 `json:"file_size"`
-}
+ if errors.As(err, &answer) {
+ return answer.Status == http.StatusTooManyRequests || answer.Status >= 500, answer.RetryAfter
+ }
-// TelegramDocument is a file sent without photo compression.
-type TelegramDocument struct {
- FileID string `json:"file_id"`
- MimeType string `json:"mime_type"`
- FileSize int64 `json:"file_size"`
+ return false, 0
}
-// TelegramChat is the chat of a message. Type is private for a chat with one
-// user.
-type TelegramChat struct {
- ID int64 `json:"id"`
- Type string `json:"type"`
-}
+// telegramRejected tells if the Bot API refused a call with ok false and HTTP
+// 400 or 404. Then the call did nothing: 400 refuses the request, and 404 tells
+// that the method is not there. An error page with no Bot API answer does not
+// tell this, so it is not a refusal.
+func telegramRejected(err error) bool {
+ var answer *TelegramError
-// TelegramUser is the sender of a message.
-type TelegramUser struct {
- ID int64 `json:"id"`
+ return errors.As(err, &answer) && answer.Refused && (answer.Status == http.StatusBadRequest || answer.Status == http.StatusNotFound)
}
projects / onechat / blobdiff