/
lantern_req.go
96 lines (73 loc) · 2.19 KB
/
lantern_req.go
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package main
import "io"
import "fmt"
import "net/http"
import "github.com/abeconnelly/sloppyjson"
import "log"
import "bytes"
import "github.com/julienschmidt/httprouter"
import gouuid "github.com/nu7hatch/gouuid"
var g_req_debug bool = true
func send_error_bad_request(w http.ResponseWriter, err_str string) {
if gVerboseFlag {
log.Printf(err_str)
}
w.Header().Set("Content-Type", "application/json")
io.WriteString(w, `{"Type":"error","Message":"bad request"}`)
return
}
func ping_req_handler(w http.ResponseWriter, sj *sloppyjson.SloppyJSON, conn_info *LanternConnInfo) {
io.WriteString(w, `{"Type":"pong"}`)
if gVerboseFlag {
log.Printf("%s: sent pong", conn_info.UUID.String())
}
}
func stat_req_handler(w http.ResponseWriter, sj *sloppyjson.SloppyJSON, conn_info *LanternConnInfo) {
io.WriteString(w, `{"Type":"stat-resp"`)
io.WriteString(w, fmt.Sprintf(`,"Requests":%d`, gLanternStat.Requests))
io.WriteString(w, fmt.Sprintf(`,"Failures":%d`, gLanternStat.Failures))
io.WriteString(w, fmt.Sprintf(`,"AvgRespMs":%v`, gLanternStat.AvgRespMs))
io.WriteString(w, fmt.Sprintf(`,"AvgRespDt":%f`, gLanternStat.AvgRespDt))
io.WriteString(w, "}")
if gVerboseFlag {
log.Printf("%s: stat-resp", conn_info.UUID.String())
}
}
func handle_json_req(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
var body_reader io.Reader = r.Body
b := bytes.Buffer{}
n,e := b.ReadFrom(body_reader) ; _ = n
if e!=nil {
send_error_bad_request(w, fmt.Sprintf("%v", e))
return
}
if g_req_debug {
log.Printf(b.String())
}
sj,e := sloppyjson.Loads(b.String())
if e!=nil {
send_error_bad_request(w, fmt.Sprintf("%v", e))
return
}
conn_info := LanternConnInfo{}
conn_info.UUID,e = gouuid.NewV4()
if e!=nil {
send_error_bad_request(w, fmt.Sprintf("%v", e))
return
}
if _,ok := sj.O["Type"] ; !ok {
send_error_bad_request(w, fmt.Sprintf("%v", e))
return
}
if gVerboseFlag {
log.Printf("%s: received %s\n", conn_info.UUID.String(), sj.O["Type"].S)
}
switch sj.O["Type"].S {
case "ping":
ping_req_handler(w, sj, &conn_info)
return
case "stat":
stat_req_handler(w, sj, &conn_info)
return
}
}