aicra/router.go

90 lines
2.0 KiB
Go

package gfw
import (
"fmt"
"git.xdrm.io/gfw/internal/config"
"log"
"net/http"
)
func (s Server) route(res http.ResponseWriter, req *http.Request) {
/* (1) Build request
---------------------------------------------------------*/
/* (1) Try to build request */
request, err := buildRequest(req)
if err != nil {
log.Fatal(req)
}
// fmt.Printf("Uri: %v\n", request.Uri)
// fmt.Printf("GET: %v\n", request.GetData)
// fmt.Printf("POST: %v\n", request.FormData)
/* (2) Find a controller
---------------------------------------------------------*/
/* (1) Init browsing cursors */
ctl := s.config
uriIndex := 0
/* (2) Browse while there is uri parts */
for uriIndex < len(request.Uri) {
uri := request.Uri[uriIndex]
child, hasKey := ctl.Children[uri]
// stop if no matchind child
if !hasKey {
break
}
request.ControllerUri = append(request.ControllerUri, uri)
ctl = child
uriIndex++
}
/* (3) Check method
---------------------------------------------------------*/
/* (1) Unavailable method */
if req.Method == "GET" && ctl.GET == nil ||
req.Method == "POST" && ctl.POST == nil ||
req.Method == "PUT" && ctl.PUT == nil ||
req.Method == "DELETE" && ctl.DELETE == nil {
Json, _ := ErrUnknownMethod.MarshalJSON()
res.Header().Add("Content-Type", "application/json")
res.Write(Json)
log.Printf("[err] %s\n", ErrUnknownMethod.Reason)
return
}
/* (2) Extract method cursor */
var method *config.Method
if req.Method == "GET" {
method = ctl.GET
} else if req.Method == "POST" {
method = ctl.POST
} else if req.Method == "PUT" {
method = ctl.PUT
} else if req.Method == "DELETE" {
method = ctl.DELETE
}
/* (3) Unmanaged HTTP method */
if method == nil { // unknown method
Json, _ := ErrUnknownMethod.MarshalJSON()
res.Header().Add("Content-Type", "application/json")
res.Write(Json)
log.Printf("[err] %s\n", ErrUnknownMethod.Reason)
return
}
/* (4) Check arguments
---------------------------------------------------------*/
fmt.Printf("OK\n")
return
}