Initial commit - read and serve markdown and static files

README.md

@@ -0,0 +1,15 @@
+# Prose
+
+Prose is a blogging platform written in Go, which I am building to serve my own blog.
+
+## Usage
+
+Blog posts should be created in the format `DATE-title-slug.md`. Work in progress posts should be stored as `WIP-title-slug.md`. Static content should be stored in the `static/` folder, appropriately arranged.
+
+Posts will be served as `/title-slug`, and files like `static/random/file/structure.txt` will be served as `/random/file/structure.txt`. When title slugs and static files conflict, slugs will have higher precdence.
+
+To start the server:
+
+	go run .
+
+Server will be live on port 8080.

go.mod

@@ -0,0 +1,5 @@
+module prose
+
+go 1.15
+
+require github.com/yuin/goldmark v1.3.1

go.sum

@@ -0,0 +1,24 @@
+github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
+github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
+github.com/russross/blackfriday v2.0.0+incompatible/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
+github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
+github.com/yuin/goldmark v1.3.1 h1:eVwehsLsZlCJCwXyGLgg+Q4iFWE/eTIMG0e8waCmm/I=
+github.com/yuin/goldmark v1.3.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
+gitlab.com/golang-commonmark/html v0.0.0-20191124015941-a22733972181 h1:K+bMSIx9A7mLES1rtG+qKduLIXq40DAzYHtb0XuCukA=
+gitlab.com/golang-commonmark/html v0.0.0-20191124015941-a22733972181/go.mod h1:dzYhVIwWCtzPAa4QP98wfB9+mzt33MSmM8wsKiMi2ow=
+gitlab.com/golang-commonmark/linkify v0.0.0-20191026162114-a0c2df6c8f82 h1:oYrL81N608MLZhma3ruL8qTM4xcpYECGut8KSxRY59g=
+gitlab.com/golang-commonmark/linkify v0.0.0-20191026162114-a0c2df6c8f82/go.mod h1:Gn+LZmCrhPECMD3SOKlE+BOHwhOYD9j7WT9NUtkCrC8=
+gitlab.com/golang-commonmark/linkify v0.0.0-20200225224916-64bca66f6ad3 h1:1Coh5BsUBlXoEJmIEaNzVAWrtg9k7/eJzailMQr1grw=
+gitlab.com/golang-commonmark/linkify v0.0.0-20200225224916-64bca66f6ad3/go.mod h1:Gn+LZmCrhPECMD3SOKlE+BOHwhOYD9j7WT9NUtkCrC8=
+gitlab.com/golang-commonmark/markdown v0.0.0-20191127184510-91b5b3c99c19 h1:HsZm6XaTpEgZiZqcXZkUbG6BNtSZE3XyCTfo52YBoDY=
+gitlab.com/golang-commonmark/markdown v0.0.0-20191127184510-91b5b3c99c19/go.mod h1:CRIzp0wh6PvKEAeEOtp9wEpNKJJ1VFTNfHO4+ToRgVA=
+gitlab.com/golang-commonmark/mdurl v0.0.0-20191124015652-932350d1cb84 h1:qqjvoVXdWIcZCLPMlzgA7P9FZWdPGPvP/l3ef8GzV6o=
+gitlab.com/golang-commonmark/mdurl v0.0.0-20191124015652-932350d1cb84/go.mod h1:IJZ+fdMvbW2qW6htJx7sLJ04FEs4Ldl/MDsJtMKywfw=
+gitlab.com/golang-commonmark/puny v0.0.0-20191124015043-9f83538fa04f h1:Wku8eEdeJqIOFHtrfkYUByc4bCaTeA6fL0UJgfEiFMI=
+gitlab.com/golang-commonmark/puny v0.0.0-20191124015043-9f83538fa04f/go.mod h1:Tiuhl+njh/JIg0uS/sOJVYi0x2HEa5rc1OAaVsb5tAs=
+gitlab.com/opennota/wd v0.0.0-20180912061657-c5d65f63c638/go.mod h1:EGRJaqe2eO9XGmFtQCvV3Lm9NLico3UhFwUpCG/+mVU=
+golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/text v0.3.5 h1:i6eZZ+zk0SOf0xgBpEpPD18qWcJda6q1sxt3S0kzyUQ=
+golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

page.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+
+	"github.com/yuin/goldmark"
+	"github.com/yuin/goldmark/extension"
+	"github.com/yuin/goldmark/renderer/html"
+)
+
+type page struct {
+	slug string
+}
+
+func (p *page) render() ([]byte, error) {
+	data, err := ioutil.ReadFile("posts/" + p.slug + ".md")
+	if err != nil {
+		return nil, fmt.Errorf("Could not read from %s.md: %s", p.slug, err)
+	}
+
+	md := goldmark.New(
+		goldmark.WithExtensions(extension.Linkify),
+		goldmark.WithRendererOptions(
+			html.WithUnsafe(),
+		),
+	)
+
+	var converted bytes.Buffer
+	err = md.Convert(data, &converted)
+	if err != nil {
+		return nil, fmt.Errorf("Could not parse markdown from %s.md: %s", p.slug, err)
+	}
+
+	return converted.Bytes(), nil
+}

posts/.gitignore

@@ -0,0 +1 @@
+WIP-*

prose.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"log"
+	"net/http"
+)
+
+func main() {
+	log.Printf("Hello, world! This is Prose.")
+
+	s, err := newServer()
+
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	http.HandleFunc("/", s.router)
+
+	log.Fatal(http.ListenAndServe(":8080", nil))
+}

server.go

@@ -0,0 +1,78 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"strings"
+)
+
+type server struct {
+	pages         []page
+	staticHandler http.Handler
+}
+
+func newServer() (*server, error) {
+	files, err := ioutil.ReadDir("posts/")
+
+	if err != nil {
+		return nil, err
+	}
+
+	s := &server{
+		pages:         make([]page, 0, len(files)),
+		staticHandler: http.FileServer(http.Dir("static/")),
+	}
+
+	for _, f := range files {
+		filename := f.Name()
+
+		if strings.HasSuffix(filename, ".md") {
+			s.pages = append(s.pages, page{slug: strings.TrimSuffix(filename, ".md")})
+		}
+	}
+
+	return s, nil
+}
+
+func (s *server) logRequest(req *http.Request) {
+	log.Printf("%s %s from %s", req.Method, req.URL.Path, req.RemoteAddr)
+}
+
+func (s *server) router(res http.ResponseWriter, req *http.Request) {
+	s.logRequest(req)
+	slug := req.URL.Path[1:]
+
+	if slug == "" {
+		s.homePage(res, req)
+		return
+	}
+
+	for _, p := range s.pages {
+		if p.slug == slug {
+			buf, err := p.render()
+
+			if err != nil {
+				res.WriteHeader(http.StatusInternalServerError)
+				res.Write([]byte("oh no"))
+			}
+
+			res.Write(buf)
+
+			return
+		}
+	}
+
+	s.staticHandler.ServeHTTP(res, req)
+}
+
+func (s *server) homePage(res http.ResponseWriter, req *http.Request) {
+	res.Header().Add("content-type", "text/html")
+
+	res.Write([]byte("<h1>blog</h1>"))
+
+	for _, p := range s.pages {
+		fmt.Fprintf(res, "<a href=\"/%s\">%s</a><br>", p.slug, p.slug)
+	}
+}