refactor server handler, rename for readability
This commit is contained in:
parent
682e20a959
commit
1225e3b1f2
87
http.go
87
http.go
|
@ -13,100 +13,103 @@ import (
|
||||||
type httpServer Server
|
type httpServer Server
|
||||||
|
|
||||||
// ServeHTTP implements http.Handler and has to be called on each request
|
// ServeHTTP implements http.Handler and has to be called on each request
|
||||||
func (s httpServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
func (server httpServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
||||||
defer r.Body.Close()
|
defer r.Body.Close()
|
||||||
|
|
||||||
// 1. build API request from HTTP request
|
/* (1) create api.Request from http.Request
|
||||||
|
---------------------------------------------------------*/
|
||||||
request, err := api.NewRequest(r)
|
request, err := api.NewRequest(r)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
log.Fatal(err)
|
log.Fatal(err)
|
||||||
}
|
}
|
||||||
|
|
||||||
// 2. find a matching service for this path in the config
|
// 2. find a matching service for this path in the config
|
||||||
serviceDef, pathIndex := s.services.Browse(request.URI)
|
serviceConf, pathIndex := server.config.Browse(request.URI)
|
||||||
if serviceDef == nil {
|
if serviceConf == nil {
|
||||||
return
|
return
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// 3. extract the service path from request URI
|
||||||
servicePath := strings.Join(request.URI[:pathIndex], "/")
|
servicePath := strings.Join(request.URI[:pathIndex], "/")
|
||||||
if !strings.HasPrefix(servicePath, "/") {
|
if !strings.HasPrefix(servicePath, "/") {
|
||||||
servicePath = "/" + servicePath
|
servicePath = "/" + servicePath
|
||||||
}
|
}
|
||||||
|
|
||||||
// 3. check if matching methodDef exists in config */
|
// 4. find method configuration from http method */
|
||||||
var methodDef = serviceDef.Method(r.Method)
|
var methodConf = serviceConf.Method(r.Method)
|
||||||
if methodDef == nil {
|
if methodConf == nil {
|
||||||
response := api.NewResponse(api.ErrorUnknownMethod())
|
res := api.NewResponse(api.ErrorUnknownMethod())
|
||||||
response.ServeHTTP(w, r)
|
res.ServeHTTP(w, r)
|
||||||
logError(response)
|
logError(res)
|
||||||
return
|
return
|
||||||
}
|
}
|
||||||
|
|
||||||
// 4. parse every input data from the request
|
// 5. parse data from the request (uri, query, form, json)
|
||||||
store := reqdata.New(request.URI[pathIndex:], r)
|
data := reqdata.New(request.URI[pathIndex:], r)
|
||||||
|
|
||||||
/* (4) Check parameters
|
/* (2) check parameters
|
||||||
---------------------------------------------------------*/
|
---------------------------------------------------------*/
|
||||||
parameters, paramError := s.extractParameters(store, methodDef.Parameters)
|
parameters, paramError := server.extractParameters(data, methodConf.Parameters)
|
||||||
|
|
||||||
// Fail if argument check failed
|
// Fail if argument check failed
|
||||||
if paramError.Code != api.ErrorSuccess().Code {
|
if paramError.Code != api.ErrorSuccess().Code {
|
||||||
response := api.NewResponse(paramError)
|
res := api.NewResponse(paramError)
|
||||||
response.ServeHTTP(w, r)
|
res.ServeHTTP(w, r)
|
||||||
logError(response)
|
logError(res)
|
||||||
return
|
return
|
||||||
}
|
}
|
||||||
|
|
||||||
request.Param = parameters
|
request.Param = parameters
|
||||||
|
|
||||||
/* (5) Search a matching handler
|
/* (3) search for the handler
|
||||||
---------------------------------------------------------*/
|
---------------------------------------------------------*/
|
||||||
var serviceHandler *api.Handler
|
var foundHandler *api.Handler
|
||||||
var serviceFound bool
|
var found bool
|
||||||
|
|
||||||
for _, handler := range s.handlers {
|
for _, handler := range server.handlers {
|
||||||
if handler.GetPath() == servicePath {
|
if handler.GetPath() == servicePath {
|
||||||
serviceFound = true
|
found = true
|
||||||
if handler.GetMethod() == r.Method {
|
if handler.GetMethod() == r.Method {
|
||||||
serviceHandler = handler
|
foundHandler = handler
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
// fail if found no handler
|
// fail if found no handler
|
||||||
if serviceHandler == nil {
|
if foundHandler == nil {
|
||||||
if serviceFound {
|
if found {
|
||||||
response := api.NewResponse()
|
res := api.NewResponse()
|
||||||
response.SetError(api.ErrorUncallableMethod(), servicePath, r.Method)
|
res.SetError(api.ErrorUncallableMethod(), servicePath, r.Method)
|
||||||
response.ServeHTTP(w, r)
|
res.ServeHTTP(w, r)
|
||||||
logError(response)
|
logError(res)
|
||||||
return
|
return
|
||||||
}
|
}
|
||||||
|
|
||||||
response := api.NewResponse()
|
res := api.NewResponse()
|
||||||
response.SetError(api.ErrorUncallableService(), servicePath)
|
res.SetError(api.ErrorUncallableService(), servicePath)
|
||||||
response.ServeHTTP(w, r)
|
res.ServeHTTP(w, r)
|
||||||
logError(response)
|
logError(res)
|
||||||
return
|
return
|
||||||
}
|
}
|
||||||
|
|
||||||
/* (6) Execute handler and return response
|
/* (4) execute handler and return response
|
||||||
---------------------------------------------------------*/
|
---------------------------------------------------------*/
|
||||||
// 1. feed request with configuration scope
|
// 1. feed request with configuration scope
|
||||||
request.Scope = methodDef.Scope
|
request.Scope = methodConf.Scope
|
||||||
|
|
||||||
// 1. execute
|
// 2. execute
|
||||||
response := api.NewResponse()
|
res := api.NewResponse()
|
||||||
serviceHandler.Handle(*request, response)
|
foundHandler.Handle(*request, res)
|
||||||
|
|
||||||
// 2. apply headers
|
// 3. apply headers
|
||||||
for key, values := range response.Headers {
|
for key, values := range res.Headers {
|
||||||
for _, value := range values {
|
for _, value := range values {
|
||||||
w.Header().Add(key, value)
|
w.Header().Add(key, value)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
// 3. write to response
|
// 4. write to response
|
||||||
response.ServeHTTP(w, r)
|
res.ServeHTTP(w, r)
|
||||||
return
|
return
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
|
@ -13,7 +13,7 @@ import (
|
||||||
|
|
||||||
// Server represents an AICRA instance featuring: type checkers, services
|
// Server represents an AICRA instance featuring: type checkers, services
|
||||||
type Server struct {
|
type Server struct {
|
||||||
services *config.Service
|
config *config.Service
|
||||||
Checkers *checker.Set
|
Checkers *checker.Set
|
||||||
handlers []*api.Handler
|
handlers []*api.Handler
|
||||||
}
|
}
|
||||||
|
@ -27,7 +27,7 @@ func New(configPath string) (*Server, error) {
|
||||||
|
|
||||||
// 1. init instance
|
// 1. init instance
|
||||||
var i = &Server{
|
var i = &Server{
|
||||||
services: nil,
|
config: nil,
|
||||||
Checkers: checker.New(),
|
Checkers: checker.New(),
|
||||||
handlers: make([]*api.Handler, 0),
|
handlers: make([]*api.Handler, 0),
|
||||||
}
|
}
|
||||||
|
@ -40,14 +40,14 @@ func New(configPath string) (*Server, error) {
|
||||||
defer configFile.Close()
|
defer configFile.Close()
|
||||||
|
|
||||||
// 3. load configuration
|
// 3. load configuration
|
||||||
i.services, err = config.Parse(configFile)
|
i.config, err = config.Parse(configFile)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
return nil, err
|
return nil, err
|
||||||
}
|
}
|
||||||
|
|
||||||
// 4. log configuration services
|
// 4. log configuration services
|
||||||
log.Printf("🔧 Reading configuration '%s'\n", configPath)
|
log.Printf("🔧 Reading configuration '%s'\n", configPath)
|
||||||
logService(*i.services, "")
|
logService(*i.config, "")
|
||||||
|
|
||||||
return i, nil
|
return i, nil
|
||||||
|
|
||||||
|
|
2
util.go
2
util.go
|
@ -58,7 +58,7 @@ func (s *httpServer) extractParameters(store *reqdata.Store, methodParam map[str
|
||||||
return nil, apiErr
|
return nil, apiErr
|
||||||
}
|
}
|
||||||
|
|
||||||
// 6. do not check if file
|
// 6. ignore type check if file
|
||||||
if gotFile {
|
if gotFile {
|
||||||
parameters[param.Rename] = p.Value
|
parameters[param.Rename] = p.Value
|
||||||
continue
|
continue
|
||||||
|
|
Loading…
Reference in New Issue