diff options
Diffstat (limited to 'vendor/github.com/gin-contrib/sse/sse-decoder.go')
-rw-r--r-- | vendor/github.com/gin-contrib/sse/sse-decoder.go | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/vendor/github.com/gin-contrib/sse/sse-decoder.go b/vendor/github.com/gin-contrib/sse/sse-decoder.go deleted file mode 100644 index fd49b9c37..000000000 --- a/vendor/github.com/gin-contrib/sse/sse-decoder.go +++ /dev/null @@ -1,116 +0,0 @@ -// Copyright 2014 Manu Martinez-Almeida. All rights reserved. -// Use of this source code is governed by a MIT style -// license that can be found in the LICENSE file. - -package sse - -import ( - "bytes" - "io" - "io/ioutil" -) - -type decoder struct { - events []Event -} - -func Decode(r io.Reader) ([]Event, error) { - var dec decoder - return dec.decode(r) -} - -func (d *decoder) dispatchEvent(event Event, data string) { - dataLength := len(data) - if dataLength > 0 { - //If the data buffer's last character is a U+000A LINE FEED (LF) character, then remove the last character from the data buffer. - data = data[:dataLength-1] - dataLength-- - } - if dataLength == 0 && event.Event == "" { - return - } - if event.Event == "" { - event.Event = "message" - } - event.Data = data - d.events = append(d.events, event) -} - -func (d *decoder) decode(r io.Reader) ([]Event, error) { - buf, err := ioutil.ReadAll(r) - if err != nil { - return nil, err - } - - var currentEvent Event - var dataBuffer *bytes.Buffer = new(bytes.Buffer) - // TODO (and unit tests) - // Lines must be separated by either a U+000D CARRIAGE RETURN U+000A LINE FEED (CRLF) character pair, - // a single U+000A LINE FEED (LF) character, - // or a single U+000D CARRIAGE RETURN (CR) character. - lines := bytes.Split(buf, []byte{'\n'}) - for _, line := range lines { - if len(line) == 0 { - // If the line is empty (a blank line). Dispatch the event. - d.dispatchEvent(currentEvent, dataBuffer.String()) - - // reset current event and data buffer - currentEvent = Event{} - dataBuffer.Reset() - continue - } - if line[0] == byte(':') { - // If the line starts with a U+003A COLON character (:), ignore the line. - continue - } - - var field, value []byte - colonIndex := bytes.IndexRune(line, ':') - if colonIndex != -1 { - // If the line contains a U+003A COLON character character (:) - // Collect the characters on the line before the first U+003A COLON character (:), - // and let field be that string. - field = line[:colonIndex] - // Collect the characters on the line after the first U+003A COLON character (:), - // and let value be that string. - value = line[colonIndex+1:] - // If value starts with a single U+0020 SPACE character, remove it from value. - if len(value) > 0 && value[0] == ' ' { - value = value[1:] - } - } else { - // Otherwise, the string is not empty but does not contain a U+003A COLON character character (:) - // Use the whole line as the field name, and the empty string as the field value. - field = line - value = []byte{} - } - // The steps to process the field given a field name and a field value depend on the field name, - // as given in the following list. Field names must be compared literally, - // with no case folding performed. - switch string(field) { - case "event": - // Set the event name buffer to field value. - currentEvent.Event = string(value) - case "id": - // Set the event stream's last event ID to the field value. - currentEvent.Id = string(value) - case "retry": - // If the field value consists of only characters in the range U+0030 DIGIT ZERO (0) to U+0039 DIGIT NINE (9), - // then interpret the field value as an integer in base ten, and set the event stream's reconnection time to that integer. - // Otherwise, ignore the field. - currentEvent.Id = string(value) - case "data": - // Append the field value to the data buffer, - dataBuffer.Write(value) - // then append a single U+000A LINE FEED (LF) character to the data buffer. - dataBuffer.WriteString("\n") - default: - //Otherwise. The field is ignored. - continue - } - } - // Once the end of the file is reached, the user agent must dispatch the event one final time. - d.dispatchEvent(currentEvent, dataBuffer.String()) - - return d.events, nil -} |