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/*
Copyright (c) 2019 Ben Morrison (gbmor)
This file is part of Getwtxt.
Getwtxt is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Getwtxt is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Getwtxt. If not, see <https://www.gnu.org/licenses/>.
*/
package svc // import "git.sr.ht/~gbmor/getwtxt/svc"
import (
"fmt"
"log"
"net/http"
"time"
"github.com/gorilla/handlers"
"github.com/gorilla/mux"
)
// Start is the initialization function for getwtxt
func Start() {
before := time.Now()
initSvc()
// StrictSlash(true) allows /api and /api/
// to serve the same content without duplicating
// handlers/paths
index := mux.NewRouter().StrictSlash(true)
setIndexRouting(index)
// Serve the raw contents of this directory so users can
// place miscellaneous files in it to use with the template.
index.PathPrefix("/static").
Methods("GET", "HEAD").
Handler(http.StripPrefix("/static", http.FileServer(http.Dir(confObj.StaticDir))))
api := index.PathPrefix("/api").Subrouter()
setEndpointRouting(api)
confObj.Mu.RLock()
portnum := fmt.Sprintf(":%v", confObj.Port)
confObj.Mu.RUnlock()
server := newServer(portnum, index)
log.Printf("*** Listening on %v\n", portnum)
log.Printf("*** getwtxt %v Startup finished at %v, took %v\n\n", Vers, time.Now().Format(time.RFC3339), time.Since(before))
errLog("", server.ListenAndServe())
closeLog <- struct{}{}
killTickers()
killDB()
close(dbChan)
close(closeLog)
}
func newServer(port string, index *mux.Router) *http.Server {
// handlers.CompressHandler gzips all responses.
// ipMiddleware passes the request IP along.
// Write/Read timeouts are self explanatory.
return &http.Server{
Handler: handlers.CompressHandler(ipMiddleware(index)),
Addr: port,
WriteTimeout: 15 * time.Second,
ReadTimeout: 15 * time.Second,
}
}
func setIndexRouting(index *mux.Router) {
index.Path("/").
Methods("GET", "HEAD").
HandlerFunc(staticHandler)
index.Path("/css").
Methods("GET", "HEAD").
HandlerFunc(staticHandler)
index.Path("/api").
Methods("GET", "HEAD").
HandlerFunc(apiBaseHandler)
}
func setEndpointRouting(api *mux.Router) {
// May add support for other formats later.
// Making this future-proof.
api.Path("/{format:(?:plain)}").
Methods("GET", "HEAD").
HandlerFunc(apiFormatHandler)
// Non-standard API call to list *all* tweets
// in a single request.
api.Path("/{format:(?:plain)}/tweets/all").
Methods("GET", "HEAD").
HandlerFunc(apiAllTweetsHandler)
// Specifying the endpoint with and without query information.
// Will return 404 on empty queries otherwise.
api.Path("/{format:(?:plain)}/{endpoint:(?:mentions|users|tweets|version)}").
Methods("GET", "HEAD").
HandlerFunc(apiEndpointHandler)
api.Path("/{format:(?:plain)}/{endpoint:(?:mentions|users|tweets)}").
Queries("url", "{url}", "q", "{query}", "page", "{[0-9]+}").
Methods("GET", "HEAD").
HandlerFunc(apiEndpointHandler)
// This is for submitting new users. Both query variables must exist
// in the request for this to match.
api.Path("/{format:(?:plain)}/{endpoint:users}").
Queries("url", "{url}", "nickname", "{nickname:[a-zA-Z0-9_-]+}").
Methods("POST").
HandlerFunc(apiEndpointPOSTHandler)
// This is for submitting new users incorrectly
// and letting the requester know about their error.
api.Path("/{format:(?:plain)}/{endpoint:users}").
Queries("url", "{url}").
Methods("POST").
HandlerFunc(apiEndpointPOSTHandler)
// This is also for submitting new users incorrectly
// and letting the requester know about their error.
api.Path("/{format:(?:plain)}/{endpoint:users}").
Queries("nickname", "{nickname:[a-zA-Z0-9_-]+}").
Methods("POST").
HandlerFunc(apiEndpointPOSTHandler)
// Show all observed tags
api.Path("/{format:(?:plain)}/tags").
Methods("GET", "HEAD").
HandlerFunc(apiTagsBaseHandler)
// Show Nth page of all observed tags
api.Path("/{format:(?:plain)}/tags").
Queries("page", "{[0-9]+}").
Methods("GET", "HEAD").
HandlerFunc(apiTagsBaseHandler)
// Requests statuses with a specific tag
api.Path("/{format:(?:plain)}/tags/{tags:[a-zA-Z0-9_-]+}").
Methods("GET", "HEAD").
HandlerFunc(apiTagsHandler)
// Requests Nth page of statuses with a specific tag
api.Path("/{format:(?:plain)}/tags/{tags:[a-zA-Z0-9_-]+}").
Queries("page", "{[0-9]+}").
Methods("GET", "HEAD").
HandlerFunc(apiTagsHandler)
}
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