func requestHandler(ctx *fasthttp.RequestCtx) {
fmt.Fprintf(ctx, "Hello, world!\n\n")
fmt.Fprintf(ctx, "Request method is %q\n", ctx.Method())
fmt.Fprintf(ctx, "RequestURI is %q\n", ctx.RequestURI())
fmt.Fprintf(ctx, "Requested path is %q\n", ctx.Path())
fmt.Fprintf(ctx, "Host is %q\n", ctx.Host())
fmt.Fprintf(ctx, "Query string is %q\n", ctx.QueryArgs())
fmt.Fprintf(ctx, "User-Agent is %q\n", ctx.UserAgent())
fmt.Fprintf(ctx, "Connection has been established at %s\n", ctx.ConnTime())
fmt.Fprintf(ctx, "Request has been started at %s\n", ctx.Time())
fmt.Fprintf(ctx, "Serial request number for the current connection is %d\n", ctx.ConnRequestNum())
fmt.Fprintf(ctx, "Your ip is %q\n\n", ctx.RemoteIP())
fmt.Fprintf(ctx, "Raw request is:\n---CUT---\n%s\n---CUT---", &ctx.Request)
ctx.SetContentType("text/plain; charset=utf8")
// Set arbitrary headers
ctx.Response.Header.Set("X-My-Header", "my-header-value")
// Set cookies
var c fasthttp.Cookie
c.SetKey("cookie-name")
c.SetValue("cookie-value")
ctx.Response.Header.SetCookie(&c)
}
func (l *logAction) Act(ruleName string, ctx *fasthttp.RequestCtx) error {
_, err := fmt.Fprintf(
l.destination,
"[%v] %v %s %s %s%s \"%s\" \"%s\"\n",
ruleName,
time.Now().Format("2006-01-02 15:04:05.000"),
ctx.Request.Header.Peek("X-Forwarded-For"),
ctx.Method(),
ctx.Host(),
ctx.RequestURI(),
ctx.PostBody(),
ctx.Request.Header.UserAgent(),
)
return err
}
func requestHandler(ctx *fasthttp.RequestCtx) {
h := &ctx.Request.Header
if !ctx.IsGet() {
ctx.Error("Method not allowed", fasthttp.StatusMethodNotAllowed)
return
}
if string(ctx.RequestURI()) == *statsRequestPath {
var w bytes.Buffer
stats.WriteToStream(&w)
ctx.Success("text/plain", w.Bytes())
return
}
if len(h.Peek("If-None-Match")) > 0 {
resp := &ctx.Response
resp.SetStatusCode(fasthttp.StatusNotModified)
resp.Header.Set("Etag", "W/\"CacheForever\"")
atomic.AddInt64(&stats.IfNoneMatchHitsCount, 1)
return
}
v := keyPool.Get()
if v == nil {
v = make([]byte, 128)
}
key := v.([]byte)
key = append(key[:0], getRequestHost(h)...)
key = append(key, ctx.RequestURI()...)
item, err := cache.GetDeItem(key, time.Second)
if err != nil {
if err != ybc.ErrCacheMiss {
logFatal("Unexpected error when obtaining cache value by key=[%s]: [%s]", key, err)
}
atomic.AddInt64(&stats.CacheMissesCount, 1)
item = fetchFromUpstream(h, key)
if item == nil {
ctx.Error("Service unavailable", fasthttp.StatusServiceUnavailable)
return
}
} else {
atomic.AddInt64(&stats.CacheHitsCount, 1)
}
defer item.Close()
keyPool.Put(v)
contentType, err := loadContentType(h, item)
if err != nil {
ctx.Error("Internal Server Error", fasthttp.StatusInternalServerError)
return
}
rh := &ctx.Response.Header
rh.Set("Etag", "W/\"CacheForever\"")
rh.Set("Cache-Control", "public, max-age=31536000")
buf := item.Value()
buf = buf[len(buf)-item.Available():]
ctx.Success(contentType, buf)
atomic.AddInt64(&stats.BytesSentToClients, int64(len(buf)))
}
// request handler in fasthttp style, i.e. just plain function.
func fastHTTPHandler(ctx *fasthttp.RequestCtx) {
fmt.Fprintf(ctx, "Hi there! RequestURI is %q", ctx.RequestURI())
}
