-
-
Notifications
You must be signed in to change notification settings - Fork 24
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
1 changed file
with
150 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,150 @@ | ||
package main | ||
|
||
import ( | ||
"context" | ||
"fmt" | ||
"net/http" | ||
"net/url" | ||
"os" | ||
"runtime" | ||
"time" | ||
|
||
"log" | ||
|
||
"github.com/mrusme/superhighway84/cache" | ||
"github.com/mrusme/superhighway84/config" | ||
"github.com/mrusme/superhighway84/database" | ||
"github.com/mrusme/superhighway84/models" | ||
"go.uber.org/zap" | ||
) | ||
|
||
const LISTEN_ADDR_AND_PORT = ":8080" | ||
|
||
func NewLogger(filename string) (*zap.Logger, error) { | ||
if runtime.GOOS == "windows" { | ||
zap.RegisterSink("winfile", func(u *url.URL) (zap.Sink, error) { | ||
return os.OpenFile(u.Path[1:], os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0644) | ||
}) | ||
} | ||
|
||
cfg := zap.NewProductionConfig() | ||
if runtime.GOOS == "windows" { | ||
cfg.OutputPaths = []string{ | ||
"stdout", | ||
"winfile:///" + filename, | ||
} | ||
} else { | ||
cfg.OutputPaths = []string{ | ||
filename, | ||
} | ||
} | ||
return cfg.Build() | ||
} | ||
|
||
// Apparently there's no `min` for ints in golang | ||
// https://stackoverflow.com/questions/27516387/what-is-the-correct-way-to-find-the-min-between-two-integers-in-go | ||
func minInt(x, y int) int { | ||
if x < y { | ||
return x | ||
} | ||
return y | ||
} | ||
|
||
func main() { | ||
ctx, cancel := context.WithCancel(context.Background()) | ||
defer cancel() | ||
|
||
log.Println("loading configuration ...") | ||
cfg, err := config.LoadConfig() | ||
if err != nil { | ||
log.Panicln(err) | ||
} | ||
if cfg.WasSetup() == false { | ||
cfg.Setup() | ||
} | ||
|
||
log.Println("initializing logger ...") | ||
logger, err := NewLogger(cfg.Logfile) | ||
if err != nil { | ||
log.Panicln(err) | ||
} | ||
|
||
log.Println("initializing cache ...") | ||
cch, err := cache.NewCache(cfg.ProgramCachePath) | ||
if err != nil { | ||
log.Panicln(err) | ||
} | ||
defer cch.Close() | ||
|
||
var articles []*models.Article | ||
var articlesRoots []*models.Article | ||
|
||
log.Println(articles) | ||
log.Println(articlesRoots) | ||
|
||
log.Println("Creating DB") | ||
db, err := database.NewDatabase(ctx, cfg.ConnectionString, cfg.DatabaseCachePath, cch, logger) | ||
if err != nil { | ||
log.Panicln(err) | ||
} | ||
defer db.Disconnect() | ||
|
||
log.Println("Connecting") | ||
err = db.Connect(func(address string) { | ||
articles, articlesRoots, _ = db.ListArticles() | ||
log.Printf("Pre-loaded %d articles, %d roots", len(articles), len(articlesRoots)) | ||
}) | ||
if err != nil { | ||
log.Panicln(err) | ||
} | ||
|
||
log.Println("Connected") | ||
|
||
// ☠️ This is Proof of concept code. | ||
// It's ugly, it's buggy and it's very much not thread-safe! | ||
|
||
go func () { | ||
for { | ||
select { | ||
case <-ctx.Done(): | ||
return | ||
case <-time.After(30 * time.Second): | ||
log.Println("Refreshing...") | ||
articles, articlesRoots, _ = db.ListArticles() | ||
log.Printf("Loaded %d articles, %d roots", len(articles), len(articlesRoots)) | ||
} | ||
} | ||
}() | ||
|
||
createResponse := func(w http.ResponseWriter, articles []*models.Article) { | ||
|
||
fmt.Fprintf(w, "<RSS HEADER>\n") | ||
|
||
numArticles := minInt(len(articles), 10) | ||
|
||
if numArticles > 0 { | ||
for i, article := range articles[0:numArticles] { | ||
fmt.Fprintf(w, "[%d] %s\n", i, article.Subject) | ||
fmt.Fprintf(w, " from:%s in:%s\n", article.From, article.Newsgroup) | ||
} | ||
} | ||
|
||
fmt.Fprintf(w, "<RSS FOOTER>\n") | ||
} | ||
|
||
articlesHandler := func(w http.ResponseWriter, r *http.Request) { | ||
log.Printf("/%s", r.URL.Path[1:]) | ||
createResponse(w, articlesRoots) | ||
} | ||
|
||
commentsHandler := func(w http.ResponseWriter, r *http.Request) { | ||
log.Printf("/%s", r.URL.Path[1:]) | ||
createResponse(w, articles) | ||
} | ||
|
||
http.HandleFunc("/rss/articles", articlesHandler) | ||
http.HandleFunc("/rss/comments", commentsHandler) | ||
|
||
log.Printf("Listening on %s", LISTEN_ADDR_AND_PORT) | ||
log.Fatal(http.ListenAndServe(LISTEN_ADDR_AND_PORT, nil)) | ||
} |