Weetile/fastfact
Weetile/fastfact
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Weetile 2024-12-04 23:39:07 +00:00
parent 88ec940b9b
commit bbdfb23f70
3 changed files with 73 additions and 47 deletions
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1
Dockerfile
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@ -3,6 +3,7 @@ FROM golang:alpine AS builder
WORKDIR /app WORKDIR /app
COPY go.mod ./ COPY go.mod ./
COPY template.html ./
COPY facts.txt ./ COPY facts.txt ./
COPY main.go ./ COPY main.go ./

80
main.go
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@ -3,21 +3,24 @@ package main
import ( import (
"embed" "embed"
"fmt" "fmt"
"html/template"
"math/rand" "math/rand"
"net/http" "net/http"
"strings" "strings"
) )
//go:embed facts.txt //go:embed facts.txt template.html
var facts embed.FS var content embed.FS
type PageData struct {
Fact string
}
func loadFacts() ([]string, error) { func loadFacts() ([]string, error) {
// Read the embedded file data, err := content.ReadFile("facts.txt")
data, err := facts.ReadFile("facts.txt")
if err != nil { if err != nil {
return nil, err return nil, fmt.Errorf("error reading facts file: %w", err)
} }
// Split the file into lines and return as a slice
lines := string(data) lines := string(data)
return splitLines(lines), nil return splitLines(lines), nil
} }
@ -26,67 +29,50 @@ func splitLines(data string) []string {
return strings.Split(strings.TrimSpace(data), "\n") return strings.Split(strings.TrimSpace(data), "\n")
} }
func randomFactHandler(facts []string) http.HandlerFunc { func randomFactHandler(facts []string, tmpl *template.Template) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) { return func(w http.ResponseWriter, r *http.Request) {
// Get a random index if len(facts) == 0 {
index := rand.Intn(len(facts)) http.Error(w, "No facts available", http.StatusInternalServerError)
return
}
index := rand.Intn(len(facts))
fact := facts[index]
// Check if the request is from curl by looking at the User-Agent
userAgent := r.Header.Get("User-Agent") userAgent := r.Header.Get("User-Agent")
isCurl := strings.HasPrefix(strings.ToLower(userAgent), "curl") isCurl := strings.HasPrefix(strings.ToLower(userAgent), "curl")
if isCurl { if isCurl {
// For curl requests, just return the fact as plain text
w.Header().Set("Content-Type", "text/plain") w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, facts[index]) fmt.Fprintln(w, fact)
return return
} }
// For browser requests, return the HTML version
w.Header().Set("Content-Type", "text/html") w.Header().Set("Content-Type", "text/html")
fmt.Fprintf(w, ` err := tmpl.Execute(w, PageData{Fact: fact})
<!DOCTYPE html> if err != nil {
<html lang="en"> http.Error(w, "Error rendering template", http.StatusInternalServerError)
<head> return
<meta charset="UTF-8"> }
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Random Fact</title>
<style>
body {
background-color: #24273a;
color: #8aadf4;
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
margin: 0;
font-size: 24px;
font-weight: bold;
font-family: Arial, sans-serif;
}
</style>
</head>
<body>
<p>%s</p>
</body>
</html>
`, facts[index])
} }
} }
func main() { func main() {
// Load facts from the embedded file
facts, err := loadFacts() facts, err := loadFacts()
if err != nil { if err != nil {
panic(err) panic(fmt.Sprintf("Failed to load facts: %v", err))
} }
// Set up the HTTP server tmpl, err := template.ParseFS(content, "template.html")
http.HandleFunc("/", randomFactHandler(facts))
fmt.Println("Server is running on http://localhost:8080")
err = http.ListenAndServe(":8080", nil)
if err != nil { if err != nil {
panic(err) panic(fmt.Sprintf("Failed to parse template: %v", err))
}
http.HandleFunc("/", randomFactHandler(facts, tmpl))
fmt.Println("Server is running on http://localhost:8080")
if err := http.ListenAndServe(":8080", nil); err != nil {
panic(fmt.Sprintf("Server failed to start: %v", err))
} }
} }

39
template.html Normal file
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@ -0,0 +1,39 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Random Fact</title>
<style>
body {
background-color: #24273a;
color: #8aadf4;
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
margin: 0;
font-size: 24px;
font-weight: bold;
font-family: Arial, sans-serif;
}
.container {
width: 66.666%;
max-width: 800px;
padding: 2rem;
text-align: center;
box-sizing: border-box;
}
p {
margin: 0;
word-wrap: break-word;
line-height: 1.5;
}
</style>
</head>
<body>
<div class="container">
<p>{{.Fact}}</p>
</div>
</body>
</html>