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test_input.go 2.59 KB
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package main
import (
"encoding/base64"
"errors"
"math/rand"
"time"
)
// ErrorStopped is the error returned when the go routines reading the input is stopped.
var ErrorStopped = errors.New("reading stopped")
// TestInput used for testing purpose, it allows emitting requests on demand
type TestInput struct {
data chan []byte
skipHeader bool
stop chan bool // Channel used only to indicate goroutine should shutdown
}
// NewTestInput constructor for TestInput
func NewTestInput() (i *TestInput) {
i = new(TestInput)
i.data = make(chan []byte, 100)
i.stop = make(chan bool)
return
}
// PluginRead reads message from this plugin
func (i *TestInput) PluginRead() (*Message, error) {
var msg Message
select {
case buf := <-i.data:
msg.Data = buf
if !i.skipHeader {
msg.Meta = payloadHeader(RequestPayload, uuid(), time.Now().UnixNano(), -1)
} else {
msg.Meta, msg.Data = payloadMetaWithBody(msg.Data)
}
return &msg, nil
case <-i.stop:
return nil, ErrorStopped
}
}
// Close closes this plugin
func (i *TestInput) Close() error {
close(i.stop)
return nil
}
// EmitBytes sends data
func (i *TestInput) EmitBytes(data []byte) {
i.data <- data
}
// EmitGET emits GET request without headers
func (i *TestInput) EmitGET() {
i.data <- []byte("GET / HTTP/1.1\r\n\r\n")
}
// EmitPOST emits POST request with Content-Length
func (i *TestInput) EmitPOST() {
i.data <- []byte("POST /pub/WWW/ HTTP/1.1\r\nContent-Length: 7\r\nHost: www.w3.org\r\n\r\na=1&b=2")
}
// EmitChunkedPOST emits POST request with `Transfer-Encoding: chunked` and chunked body
func (i *TestInput) EmitChunkedPOST() {
i.data <- []byte("POST /pub/WWW/ HTTP/1.1\r\nHost: www.w3.org\r\nTransfer-Encoding: chunked\r\n\r\n4\r\nWiki\r\n5\r\npedia\r\ne\r\n in\r\n\r\nchunks.\r\n0\r\n\r\n")
}
// EmitLargePOST emits POST request with large payload (5mb)
func (i *TestInput) EmitLargePOST() {
size := 5 * 1024 * 1024 // 5 MB
rb := make([]byte, size)
rand.Read(rb)
rs := base64.URLEncoding.EncodeToString(rb)
i.data <- []byte("POST / HTTP/1.1\r\nHost: www.w3.org\nContent-Length:5242880\r\n\r\n" + rs)
}
// EmitSizedPOST emit a POST with a payload set to a supplied size
func (i *TestInput) EmitSizedPOST(payloadSize int) {
rb := make([]byte, payloadSize)
rand.Read(rb)
rs := base64.URLEncoding.EncodeToString(rb)
i.data <- []byte("POST / HTTP/1.1\r\nHost: www.w3.org\nContent-Length:5242880\r\n\r\n" + rs)
}
// EmitOPTIONS emits OPTIONS request, similar to GET
func (i *TestInput) EmitOPTIONS() {
i.data <- []byte("OPTIONS / HTTP/1.1\r\nHost: www.w3.org\r\n\r\n")
}
func (i *TestInput) String() string {
return "Test Input"
}
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