pocketbase/main.go

94 lines
2.4 KiB
Go

package main
import (
"log"
"net/http"
"git.balsys.eu.org/tomas/pocketbase/lubinui"
"git.balsys.eu.org/tomas/pocketbase/ui"
"github.com/pocketbase/pocketbase"
"github.com/pocketbase/pocketbase/apis"
"github.com/pocketbase/pocketbase/core"
)
func main() {
app := pocketbase.New()
app.OnServe().BindFunc(routes)
app.OnRecordViewRequest().BindFunc(addLastModified)
app.OnRecordUpdateRequest().BindFunc(ifUnmodifiedSince)
app.OnRecordDeleteRequest().BindFunc(ifUnmodifiedSince)
if err := app.Start(); err != nil {
log.Fatal(err)
}
}
func routes(se *core.ServeEvent) error {
se.Router.GET("/admin/{path...}", apis.Static(ui.DistDirFS, false)).
BindFunc(routeAdmin).
Bind(apis.Gzip())
se.Router.GET("/{path...}", apis.Static(lubinui.DistDirFS, true)).
BindFunc(routeRoot).
Bind(apis.Gzip())
return se.Next()
}
func routeAdmin(e *core.RequestEvent) error {
// ignore root path
if e.Request.PathValue(apis.StaticWildcardParam) != "" {
e.Response.Header().Set("Cache-Control", "max-age=1209600, stale-while-revalidate=86400")
}
// add a default CSP
if e.Response.Header().Get("Content-Security-Policy") == "" {
e.Response.Header().Set("Content-Security-Policy", "default-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' http://127.0.0.1:* https://tile.openstreetmap.org data: blob:; connect-src 'self' http://127.0.0.1:* https://nominatim.openstreetmap.org; script-src 'self' 'sha256-GRUzBA7PzKYug7pqxv5rJaec5bwDCw1Vo6/IXwvD3Tc='")
}
return e.Next()
}
func routeRoot(e *core.RequestEvent) error {
// ignore root path
if e.Request.PathValue(apis.StaticWildcardParam) != "" {
e.Response.Header().Set("Cache-Control", "max-age=1209600, stale-while-revalidate=86400")
}
return e.Next()
}
func addLastModified(e *core.RecordRequestEvent) error {
updated := e.Record.GetString("updated")
if updated != "" {
e.Response.Header().Add("Last-Modified", updated)
}
return e.Next()
}
func ifUnmodifiedSince(e *core.RecordRequestEvent) error {
updated := e.Record.GetString("updated")
if updated != "" {
header := e.Request.Header.Get("If-Unmodified-Since")
if header == "" || header != updated {
e.Response.Header().Add("Last-Modified", updated)
if header == "" {
return e.Error(http.StatusPreconditionRequired, "Header If-Unmodified-Since is required", nil)
} else if header != updated {
return e.Error(http.StatusPreconditionFailed, "Record was modified after retrieval", nil)
}
}
}
return e.Next()
}