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package api
import (
"database/sql"
"fmt"
"log"
"net/http"
"time"
"git.simponic.xyz/simponic/whois/api/template"
"git.simponic.xyz/simponic/whois/api/types"
"git.simponic.xyz/simponic/whois/api/whois"
"git.simponic.xyz/simponic/whois/args"
"git.simponic.xyz/simponic/whois/utils"
)
func LogRequestContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
return func(success types.Continuation, _failure types.Continuation) types.ContinuationChain {
context.Start = time.Now()
context.Id = utils.RandomId()
log.Println(req.Method, req.URL.Path, req.RemoteAddr, context.Id)
return success(context, req, resp)
}
}
func LogExecutionTimeContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
return func(success types.Continuation, _failure types.Continuation) types.ContinuationChain {
end := time.Now()
log.Println(context.Id, "took", end.Sub(context.Start))
return success(context, req, resp)
}
}
func HealthCheckContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
return func(success types.Continuation, _failure types.Continuation) types.ContinuationChain {
resp.WriteHeader(200)
resp.Write([]byte("healthy"))
return success(context, req, resp)
}
}
func FailurePassingContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
return func(_success types.Continuation, failure types.Continuation) types.ContinuationChain {
return failure(context, req, resp)
}
}
func IdContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
return func(success types.Continuation, _failure types.Continuation) types.ContinuationChain {
return success(context, req, resp)
}
}
func SetJsonContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
return func(success types.Continuation, _failure types.Continuation) types.ContinuationChain {
resp.Header().Set("Content-Type", "application/json")
return success(context, req, resp)
}
}
func CacheControlMiddleware(next http.Handler, maxAge int) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
header := fmt.Sprintf("public, max-age=%d", maxAge)
w.Header().Set("Cache-Control", header)
next.ServeHTTP(w, r)
})
}
func MakeMux(argv *args.Arguments, dbConn *sql.DB) *http.ServeMux {
mux := http.NewServeMux()
staticFileServer := http.FileServer(http.Dir(argv.StaticPath))
mux.Handle("GET /static/", http.StripPrefix("/static/", CacheControlMiddleware(staticFileServer, 3600)))
makeRequestContext := func() *types.RequestContext {
return &types.RequestContext{
DBConn: dbConn,
Args: argv,
TemplateData: &map[string]interface{}{},
}
}
mux.HandleFunc("GET /health", func(w http.ResponseWriter, r *http.Request) {
requestContext := makeRequestContext()
LogRequestContinuation(requestContext, r, w)(HealthCheckContinuation, FailurePassingContinuation)(LogExecutionTimeContinuation, LogExecutionTimeContinuation)(IdContinuation, IdContinuation)
})
mux.HandleFunc("GET /", func(w http.ResponseWriter, r *http.Request) {
requestContext := makeRequestContext()
LogRequestContinuation(requestContext, r, w)(whois.FetchLatestName, FailurePassingContinuation)(template.TemplateContinuation("home.html", true), FailurePassingContinuation)(LogExecutionTimeContinuation, LogExecutionTimeContinuation)(IdContinuation, IdContinuation)
})
mux.HandleFunc("GET /updates", func(w http.ResponseWriter, r *http.Request) {
requestContext := makeRequestContext()
LogRequestContinuation(requestContext, r, w)(whois.ListUpdates, FailurePassingContinuation)(SetJsonContinuation, FailurePassingContinuation)(template.TemplateContinuation("updates.json.tmpl", false), FailurePassingContinuation)(LogExecutionTimeContinuation, LogExecutionTimeContinuation)(IdContinuation, IdContinuation)
})
return mux
}
|
