@@ -0,0 +1,79 @@
+// Parses Gemfeed according to the companion spec: gemini://gemini.circumlunar.space/docs/companion/subscription.gmi
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+	"time"
+)
+
+type Gemfeed struct {
+	Title   string
+	Entries []*FeedEntry
+}
+
+type FeedEntry struct {
+	Title      string
+	Url        string
+	Date       time.Time
+	FeedTitle  string
+	DateString string
+}
+
+// TODO definitely cache this function -- it reads EVERY gemini file on flounder.
+func getAllGemfeedEntries() ([]*FeedEntry, error) {
+	var feedEntries []*FeedEntry
+	err := filepath.Walk(c.FilesDirectory, func(thepath string, info os.FileInfo, err error) error {
+		if isGemini(info.Name()) {
+			f, err := os.Open(thepath)
+			feed, err := ParseGemfeed(f)
+			if err == nil {
+				feedEntries = append(feedEntries, feed.Entries...)
+			}
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	} else {
+		sort.Slice(feedEntries, func(i, j int) bool {
+			return feedEntries[i].Date.After(feedEntries[j].Date)
+		})
+		return feedEntries, nil
+	}
+}
+
+// Parsed Gemfeed text Returns error if not a gemfeed
+// Doesn't sort output
+// Doesn't get posts dated in the future
+func ParseGemfeed(text io.Reader) (*Gemfeed, error) {
+	scanner := bufio.NewScanner(text)
+	gf := Gemfeed{}
+	for scanner.Scan() {
+		line := scanner.Text()
+		if gf.Title == "" && strings.HasPrefix(line, "#") && !strings.HasPrefix(line, "##") {
+			gf.Title = strings.Trim(line[1:], " \t")
+		} else if strings.HasPrefix(line, "=>") {
+			link := strings.Trim(line[2:], " \t")
+			splits := strings.SplitN(link, " ", 2)
+			if len(splits) == 2 && len(splits[1]) >= 10 {
+				dateString := splits[1][:10]
+				date, err := time.Parse("2006-01-02", dateString)
+				if err == nil && time.Now().After(date) {
+					title := strings.Trim(splits[1][10:], " -\t")
+					fe := FeedEntry{title, splits[0], date, gf.Title, dateString}
+					gf.Entries = append(gf.Entries, &fe)
+				}
+			}
+		}
+	}
+	if len(gf.Entries) == 0 {
+		return nil, fmt.Errorf("No Gemfeed entries found")
+	}
+	return &gf, nil
+}

@@ -78,6 +78,24 @@ panic(err)
 	}
 }
 
+func feedHandler(w http.ResponseWriter, r *http.Request) {
+	user := newGetAuthUser(r)
+	feedEntries, err := getAllGemfeedEntries()
+	if err != nil {
+		panic(err)
+	}
+	data := struct {
+		Host        string
+		PageTitle   string
+		FeedEntries []*FeedEntry
+		AuthUser    AuthUser
+	}{c.Host, c.SiteTitle, feedEntries, user}
+	err = t.ExecuteTemplate(w, "feed.html", data)
+	if err != nil {
+		panic(err)
+	}
+}
+
 func editFileHandler(w http.ResponseWriter, r *http.Request) {
 	user := newGetAuthUser(r)
 	if !user.LoggedIn {
@@ -533,10 +551,9 @@ return
 	}
 
 	// Dumb content negotiation
-	extension := path.Ext(fileName)
 	_, raw := r.URL.Query()["raw"]
 	acceptsGemini := strings.Contains(r.Header.Get("Accept"), "text/gemini")
-	if !raw && !acceptsGemini && (extension == ".gmi" || extension == ".gemini") {
+	if !raw && !acceptsGemini && isGemini(fileName) {
 		file, _ := os.Open(fileName)
 		htmlString := textToHTML(gmi.ParseText(file))
 		favicon := getFavicon(userName)
@@ -668,6 +685,7 @@ hostname := s[0]
 	port := c.HttpPort
 
 	serveMux.HandleFunc(hostname+"/", rootHandler)
+	serveMux.HandleFunc(hostname+"/feed", feedHandler)
 	serveMux.HandleFunc(hostname+"/my_site", mySiteHandler)
 	serveMux.HandleFunc(hostname+"/me", myAccountHandler)
 	serveMux.HandleFunc(hostname+"/my_site/flounder-archive.zip", archiveHandler)

@@ -0,0 +1,14 @@
+{{$domain := .Host}}
+{{template "header" .}}
+<h1>🐟{{.PageTitle}} -- Feeds</h1>
+{{template "nav.html" .}}
+<br>
+<p>
+For more information on how to format your site to show up here, see <a href="https://admin.flounder.online/gemfeed.gmi">this documentation</a>
+<h2>Feed:</h2>
+{{ range .FeedEntries}}
+<p>
+<a href="{{.Url}}" class='person-link'>{{.DateString}} [{{.FeedTitle}}] — {{.Title}}</a>
+</p>
+{{end}}
+{{template "footer" .}}

@@ -5,6 +5,7 @@ {{template "nav.html" .}}
 <br>
 <p>
 Welcome to flounder! For more information and site updates, check out the <a href="//admin.{{$domain}}">admin page</a></p>
+
 <h2>All users:</h2>
 {{ range .Users}}
 <a href="//{{.}}.{{$domain}}" class='person-link'>{{.}}</a>

@@ -1,5 +1,6 @@
 <nav>
   <a href="/">home</a>
+  <a href="/feed">feed</a>
 {{ if .AuthUser.LoggedIn }}
   <a href="/my_site">my_site</a>
   <a href="/me">me</a>

@@ -11,6 +11,11 @@ "strings"
 	"time"
 )
 
+func isGemini(filename string) bool {
+	extension := path.Ext(filename)
+	return extension == ".gmi" || extension == ".gemini"
+}
+
 func timeago(t *time.Time) string {
 	d := time.Since(*t)
 	if d.Seconds() < 60 {