Merge pull request 'Sending Webmentions' (#10) from webmention into master

Reviewed-on: #10

Dockerfile

@@ -1,3 +1,6 @@
+##
+## Build Container
+##
 FROM golang:1.19-alpine as build
 
 
@@ -12,9 +15,12 @@ RUN go mod download
 
 COPY . .
 
-RUN go build -o ./out/owl-web ./cmd/owl-web
+RUN go build -o ./out/owl ./cmd/owl
-RUN go build -o ./out/owl-cli ./cmd/owl-cli
 
+
+##
+## Run Container
+##
 FROM alpine:3.9 
 RUN apk add ca-certificates
 
@@ -24,4 +30,4 @@ COPY --from=build /tmp/owl/out/ /bin/
 EXPOSE 8080
 
 # Run the binary program produced by `go install`
-CMD ["/bin/owl-web"]
+ENTRYPOINT ["/bin/owl"]

README.md

@@ -23,6 +23,9 @@ Each directory in the `/users/` directory of a repository is considered a user.
                 -- This will be rendered as the blog post.
                 -- Must be present for the blog post to be valid.
                 -- All other folders will be ignored
+            \- status.yml
+                -- Used to track various process status related to the post, 
+                -- such as if a webmention was sent.
             \- media/
                 -- Contains all media files used in the blog post.
                 -- All files in this folder will be publicly available
@@ -59,3 +62,14 @@ aliases:
 Actual post
 
 ```
+
+
+#### status.yml
+
+```
+webmentions:
+     - target: https://example.com/post
+       supported: true
+       scanned_at: 2021-08-13T17:07:00Z
+       last_sent_at: 2021-08-13T17:07:00Z
+```

cmd/owl-cli/main.go

@@ -1,71 +0,0 @@
-package main
-
-import (
-	"h4kor/owl-blogs"
-	"os"
-)
-
-func main() {
-	println("owl blogs")
-	println("Commands")
-	println("init <repo> - Creates a new repository")
-	println("<repo> new-user <name> - Creates a new user")
-	println("<repo> new-post <user> <title> - Creates a new post")
-
-	if len(os.Args) < 3 {
-		println("Please specify a repository and command")
-		os.Exit(1)
-	}
-
-	if os.Args[1] == "init" {
-		repoName := os.Args[2]
-		_, err := owl.CreateRepository(repoName)
-		if err != nil {
-			println("Error creating repository: ", err.Error())
-		}
-		println("Repository created: ", repoName)
-		os.Exit(0)
-	}
-
-	repoName := os.Args[1]
-	repo, err := owl.OpenRepository(repoName)
-	if err != nil {
-		println("Error opening repository: ", err.Error())
-		os.Exit(1)
-	}
-	switch os.Args[2] {
-	case "new-user":
-		if len(os.Args) < 4 {
-			println("Please specify a user name")
-			os.Exit(1)
-		}
-		userName := os.Args[3]
-		user, err := repo.CreateUser(userName)
-		if err != nil {
-			println("Error creating user: ", err.Error())
-			os.Exit(1)
-		}
-		println("User created: ", user.Name())
-	case "new-post":
-		if len(os.Args) < 5 {
-			println("Please specify a user name and a title")
-			os.Exit(1)
-		}
-		userName := os.Args[3]
-		user, err := repo.GetUser(userName)
-		if err != nil {
-			println("Error finding user: ", err.Error())
-			os.Exit(1)
-		}
-		title := os.Args[4]
-		post, err := user.CreateNewPost(title)
-		if err != nil {
-			println("Error creating post: ", err.Error())
-			os.Exit(1)
-		}
-		println("Post created: ", post.Title())
-	default:
-		println("Unknown command: ", os.Args[2])
-		os.Exit(1)
-	}
-}

cmd/owl/init.go

@@ -0,0 +1,38 @@
+package main
+
+import (
+	"h4kor/owl-blogs"
+
+	"github.com/spf13/cobra"
+)
+
+var domain string
+var singleUser string
+var unsafe bool
+
+func init() {
+	rootCmd.AddCommand(initCmd)
+
+	initCmd.PersistentFlags().StringVar(&domain, "domain", "http://localhost:8080", "Domain to use")
+	initCmd.PersistentFlags().StringVar(&singleUser, "single-user", "", "Use single user mode with given username")
+	initCmd.PersistentFlags().BoolVar(&unsafe, "unsafe", false, "Allow raw html")
+}
+
+var initCmd = &cobra.Command{
+	Use:   "init",
+	Short: "Creates a new repository",
+	Long:  `Creates a new repository`,
+	Run: func(cmd *cobra.Command, args []string) {
+		_, err := owl.CreateRepository(repoPath, owl.RepoConfig{
+			Domain:       domain,
+			SingleUser:   singleUser,
+			AllowRawHtml: unsafe,
+		})
+		if err != nil {
+			println("Error creating repository: ", err.Error())
+		} else {
+			println("Repository created: ", repoPath)
+		}
+
+	},
+}

cmd/owl/main.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var repoPath string
+var rootCmd = &cobra.Command{
+	Use:   "owl",
+	Short: "Owl Blogs is a not so static blog generator",
+}
+
+func Execute() {
+	if err := rootCmd.Execute(); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}
+
+func init() {
+
+	rootCmd.PersistentFlags().StringVar(&repoPath, "repo", ".", "Path to the repository to use.")
+	rootCmd.PersistentFlags().StringVar(&user, "user", "", "Username. Required for some commands.")
+
+}
+
+func main() {
+	Execute()
+}

cmd/owl/new_post.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"h4kor/owl-blogs"
+
+	"github.com/spf13/cobra"
+)
+
+var postTitle string
+
+func init() {
+	rootCmd.AddCommand(newPostCmd)
+	newPostCmd.PersistentFlags().StringVar(&postTitle, "title", "", "Post title")
+}
+
+var newPostCmd = &cobra.Command{
+	Use:   "new-post",
+	Short: "Creates a new post",
+	Long:  `Creates a new post`,
+	Run: func(cmd *cobra.Command, args []string) {
+		if user == "" {
+			println("Username is required")
+			return
+		}
+
+		if postTitle == "" {
+			println("Post title is required")
+			return
+		}
+
+		repo, err := owl.OpenRepository(repoPath)
+		if err != nil {
+			println("Error opening repository: ", err.Error())
+			return
+		}
+
+		user, err := repo.GetUser(user)
+		if err != nil {
+			println("Error getting user: ", err.Error())
+			return
+		}
+
+		_, err = user.CreateNewPost(postTitle)
+		if err != nil {
+			println("Error creating post: ", err.Error())
+		} else {
+			println("Post created: ", postTitle)
+		}
+	},
+}

cmd/owl/new_user.go

@@ -0,0 +1,38 @@
+package main
+
+import (
+	"h4kor/owl-blogs"
+
+	"github.com/spf13/cobra"
+)
+
+var user string
+
+func init() {
+	rootCmd.AddCommand(newUserCmd)
+}
+
+var newUserCmd = &cobra.Command{
+	Use:   "new-user",
+	Short: "Creates a new user",
+	Long:  `Creates a new user`,
+	Run: func(cmd *cobra.Command, args []string) {
+		if user == "" {
+			println("Username is required")
+			return
+		}
+
+		repo, err := owl.OpenRepository(repoPath)
+		if err != nil {
+			println("Error opening repository: ", err.Error())
+			return
+		}
+
+		_, err = repo.CreateUser(user)
+		if err != nil {
+			println("Error creating user: ", err.Error())
+		} else {
+			println("User created: ", user)
+		}
+	},
+}

cmd/owl/web.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+	web "h4kor/owl-blogs/cmd/owl/web"
+
+	"github.com/spf13/cobra"
+)
+
+var port int
+
+func init() {
+	rootCmd.AddCommand(webCmd)
+
+	webCmd.PersistentFlags().IntVar(&port, "port", 8080, "Port to use")
+}
+
+var webCmd = &cobra.Command{
+	Use:   "web",
+	Short: "Start the web server",
+	Long:  `Start the web server`,
+	Run: func(cmd *cobra.Command, args []string) {
+		web.StartServer(repoPath, port)
+	},
+}

cmd/owl/web/aliases_test.go

@@ -1,7 +1,8 @@
-package main_test
+package web_test
 
 import (
-	main "h4kor/owl-blogs/cmd/owl-web"
+	"h4kor/owl-blogs"
+	main "h4kor/owl-blogs/cmd/owl/web"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -9,7 +10,7 @@ import (
 )
 
 func TestRedirectOnAliases(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 
@@ -47,7 +48,7 @@ func TestRedirectOnAliases(t *testing.T) {
 }
 
 func TestNoRedirectOnNonExistingAliases(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 
@@ -78,7 +79,7 @@ func TestNoRedirectOnNonExistingAliases(t *testing.T) {
 }
 
 func TestNoRedirectIfValidPostUrl(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 	post2, _ := user.CreateNewPost("post-2")
@@ -109,7 +110,7 @@ func TestNoRedirectIfValidPostUrl(t *testing.T) {
 }
 
 func TestRedirectIfInvalidPostUrl(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 
@@ -139,7 +140,7 @@ func TestRedirectIfInvalidPostUrl(t *testing.T) {
 }
 
 func TestRedirectIfInvalidUserUrl(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 
@@ -169,7 +170,7 @@ func TestRedirectIfInvalidUserUrl(t *testing.T) {
 }
 
 func TestRedirectIfInvalidMediaUrl(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 
@@ -199,9 +200,8 @@ func TestRedirectIfInvalidMediaUrl(t *testing.T) {
 }
 
 func TestDeepAliasInSingleUserMode(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{SingleUser: "test-1"})
 	user, _ := repo.CreateUser("test-1")
-	repo.SetSingleUser(user)
 	post, _ := user.CreateNewPost("post-1")
 
 	content := "---\n"

cmd/owl/web/handler.go

@@ -1,4 +1,4 @@
-package main
+package web
 
 import (
 	"h4kor/owl-blogs"
@@ -11,8 +11,8 @@ import (
 )
 
 func getUserFromRepo(repo *owl.Repository, ps httprouter.Params) (owl.User, error) {
-	if repo.SingleUserName() != "" {
+	if config, _ := repo.Config(); config.SingleUser != "" {
-		return repo.GetUser(repo.SingleUserName())
+		return repo.GetUser(config.SingleUser)
 	}
 	userName := ps.ByName("user")
 	user, err := repo.GetUser(userName)

cmd/owl/web/multi_user_test.go

@@ -1,8 +1,8 @@
-package main_test
+package web_test
 
 import (
 	"h4kor/owl-blogs"
-	main "h4kor/owl-blogs/cmd/owl-web"
+	main "h4kor/owl-blogs/cmd/owl/web"
 	"math/rand"
 	"net/http"
 	"net/http/httptest"
@@ -27,13 +27,13 @@ func testRepoName() string {
 	return "/tmp/" + randomName()
 }
 
-func getTestRepo() owl.Repository {
+func getTestRepo(config owl.RepoConfig) owl.Repository {
-	repo, _ := owl.CreateRepository(testRepoName())
+	repo, _ := owl.CreateRepository(testRepoName(), config)
 	return repo
 }
 
 func TestMultiUserRepoIndexHandler(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	repo.CreateUser("user_1")
 	repo.CreateUser("user_2")
 
@@ -64,7 +64,7 @@ func TestMultiUserRepoIndexHandler(t *testing.T) {
 }
 
 func TestMultiUserUserIndexHandler(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	user.CreateNewPost("post-1")
 
@@ -91,7 +91,7 @@ func TestMultiUserUserIndexHandler(t *testing.T) {
 }
 
 func TestMultiUserPostHandler(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 
@@ -112,7 +112,7 @@ func TestMultiUserPostHandler(t *testing.T) {
 }
 
 func TestMultiUserPostMediaHandler(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 

cmd/owl/web/post_test.go

@@ -1,7 +1,8 @@
-package main_test
+package web_test
 
 import (
-	main "h4kor/owl-blogs/cmd/owl-web"
+	"h4kor/owl-blogs"
+	main "h4kor/owl-blogs/cmd/owl/web"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -9,7 +10,7 @@ import (
 )
 
 func TestPostHandlerReturns404OnDrafts(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 

cmd/owl/web/rss_test.go

@@ -1,7 +1,8 @@
-package main_test
+package web_test
 
 import (
-	main "h4kor/owl-blogs/cmd/owl-web"
+	"h4kor/owl-blogs"
+	main "h4kor/owl-blogs/cmd/owl/web"
 	"net/http"
 	"net/http/httptest"
 	"strings"
@@ -9,7 +10,7 @@ import (
 )
 
 func TestMultiUserUserRssIndexHandler(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	user.CreateNewPost("post-1")
 

cmd/owl/web/server.go

@@ -1,4 +1,4 @@
-package main
+package web
 
 import (
 	"h4kor/owl-blogs"
@@ -34,63 +34,10 @@ func SingleUserRouter(repo *owl.Repository) http.Handler {
 	return router
 }
 
-func main() {
+func StartServer(repoPath string, port int) {
-	println("owl web server")
-	println("Parameters")
-	println("-repo <repo> - Specify the repository to use. Defaults to '.'")
-	println("-port <port> - Specify the port to use, Default is '8080'")
-	println("-user <name> - Start server in single user mode.")
-	println("-unsafe - Allow unsafe html.")
-	var repoName string
-	var port int
-	var singleUserName string
-	var allowRawHTML bool = false
-	for i, arg := range os.Args[0:len(os.Args)] {
-		if arg == "-port" {
-			if i+1 >= len(os.Args) {
-				println("-port requires a port number")
-				os.Exit(1)
-			}
-			port, _ = strconv.Atoi(os.Args[i+1])
-		}
-		if arg == "-repo" {
-			if i+1 >= len(os.Args) {
-				println("-repo requires a repopath")
-				os.Exit(1)
-			}
-			repoName = os.Args[i+1]
-		}
-		if arg == "-user" {
-			if i+1 >= len(os.Args) {
-				println("-user requires a username")
-				os.Exit(1)
-			}
-			singleUserName = os.Args[i+1]
-		}
-		if arg == "-unsafe" {
-			allowRawHTML = true
-		}
-	}
-	if repoName == "" {
-		repoName = "."
-	}
-	if port == 0 {
-		port = 8080
-	}
-
 	var repo owl.Repository
 	var err error
-	if singleUserName != "" {
+	repo, err = owl.OpenRepository(repoPath)
-		println("Single user mode")
-		println("Repository:", repoName)
-		println("User:", singleUserName)
-		repo, err = owl.OpenSingleUserRepo(repoName, singleUserName)
-	} else {
-		println("Multi user mode")
-		println("Repository:", repoName)
-		repo, err = owl.OpenRepository(repoName)
-	}
-	repo.SetAllowRawHtml(allowRawHTML)
 
 	if err != nil {
 		println("Error opening repository: ", err.Error())
@@ -98,13 +45,12 @@ func main() {
 	}
 
 	var router http.Handler
-	if singleUserName == "" {
+	if config, _ := repo.Config(); config.SingleUser != "" {
-		println("Multi user mode Router used")
-		router = Router(&repo)
-	} else {
-		println("Single user mode Router used")
 		router = SingleUserRouter(&repo)
+	} else {
+		router = Router(&repo)
 	}
+
 	println("Listening on port", port)
 	http.ListenAndServe(":"+strconv.Itoa(port), router)
 

cmd/owl/web/single_user_test.go

@@ -1,8 +1,8 @@
-package main_test
+package web_test
 
 import (
 	owl "h4kor/owl-blogs"
-	main "h4kor/owl-blogs/cmd/owl-web"
+	main "h4kor/owl-blogs/cmd/owl/web"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -12,9 +12,8 @@ import (
 )
 
 func getSingleUserTestRepo() (owl.Repository, owl.User) {
-	repo, _ := owl.CreateRepository(testRepoName())
+	repo, _ := owl.CreateRepository(testRepoName(), owl.RepoConfig{SingleUser: "test-1"})
 	user, _ := repo.CreateUser("test-1")
-	repo.SetSingleUser(user)
 	return repo, user
 }
 

cmd/owl/web/webmention_test.go

@@ -1,8 +1,8 @@
-package main_test
+package web_test
 
 import (
 	"h4kor/owl-blogs"
-	main "h4kor/owl-blogs/cmd/owl-web"
+	main "h4kor/owl-blogs/cmd/owl/web"
 	"net/http"
 	"net/http/httptest"
 	"net/url"
@@ -42,7 +42,7 @@ func assertStatus(t *testing.T, rr *httptest.ResponseRecorder, expStatus int) {
 }
 
 func TestWebmentionHandleAccepts(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 
@@ -60,7 +60,7 @@ func TestWebmentionHandleAccepts(t *testing.T) {
 
 func TestWebmentionWrittenToPost(t *testing.T) {
 
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 
@@ -89,7 +89,7 @@ func TestWebmentionWrittenToPost(t *testing.T) {
 // (Most commonly this means checking that the source and target schemes are http or https).
 func TestWebmentionSourceValidation(t *testing.T) {
 
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 
@@ -106,7 +106,7 @@ func TestWebmentionSourceValidation(t *testing.T) {
 
 func TestWebmentionTargetValidation(t *testing.T) {
 
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 
@@ -125,7 +125,7 @@ func TestWebmentionTargetValidation(t *testing.T) {
 
 func TestWebmentionSameTargetAndSource(t *testing.T) {
 
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 
@@ -144,7 +144,7 @@ func TestWebmentionSameTargetAndSource(t *testing.T) {
 // This check SHOULD happen synchronously to reject invalid Webmentions before more in-depth verification begins.
 // What a "valid resource" means is up to the receiver.
 func TestValidationOfTarget(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("test-1")
 	post, _ := user.CreateNewPost("post-1")
 

cmd/owl/webmention.go

@@ -0,0 +1,70 @@
+package main
+
+import (
+	"h4kor/owl-blogs"
+
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	rootCmd.AddCommand(webmentionCmd)
+}
+
+var webmentionCmd = &cobra.Command{
+	Use:   "webmention",
+	Short: "Send webmentions for posts, optionally for a specific user",
+	Long:  `Send webmentions for posts, optionally for a specific user`,
+	Run: func(cmd *cobra.Command, args []string) {
+		repo, err := owl.OpenRepository(repoPath)
+		if err != nil {
+			println("Error opening repository: ", err.Error())
+			return
+		}
+
+		var users []owl.User
+		if user == "" {
+			// send webmentions for all users
+			users, err = repo.Users()
+			if err != nil {
+				println("Error getting users: ", err.Error())
+				return
+			}
+		} else {
+			// send webmentions for a specific user
+			user, err := repo.GetUser(user)
+			users = append(users, user)
+			if err != nil {
+				println("Error getting user: ", err.Error())
+				return
+			}
+		}
+
+		for _, user := range users {
+			posts, err := user.Posts()
+			if err != nil {
+				println("Error getting posts: ", err.Error())
+			}
+
+			for _, post := range posts {
+				println("Webmentions for post: ", post.Title())
+
+				err := post.ScanForLinks()
+				if err != nil {
+					println("Error scanning post for links: ", err.Error())
+					continue
+				}
+
+				webmentions := post.OutgoingWebmentions()
+				println("Found ", len(webmentions), " links")
+				for _, webmention := range webmentions {
+					err = post.SendWebmention(webmention)
+					if err != nil {
+						println("Error sending webmentions: ", err.Error())
+					} else {
+						println("Webmention sent to ", webmention.Target)
+					}
+				}
+			}
+		}
+	},
+}

embed/initial/base.html

@@ -5,14 +5,20 @@
     <meta charset="UTF-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>{{ .Title }}</title>
+    <title>{{ .Title }} - {{ .UserConfig.Title }}</title>
     <link rel="stylesheet" href="/static/pico.min.css">
     <link rel="webmention" href="{{ .User.WebmentionUrl }}">
     <style>
         header {
-            background-color: {{.HeaderColor}};
+            background-color: {{.UserConfig.HeaderColor}};
         }
 
+        footer {
+            border-top: dashed 2px;
+            border-color: #ccc;
+        }
+
+
         hgroup h2 a { color: inherit; } 
     </style>
 </head>
@@ -23,8 +29,8 @@
             <ul>
                 <li>
                     <hgroup>
-                        <h2><a href="{{ .User.UrlPath }}">{{ .UserTitle }}</a></h2>
+                        <h2><a href="{{ .User.UrlPath }}">{{ .UserConfig.Title }}</a></h2>
-                        <h3>{{ .UserSubtitle }}</h3>
+                        <h3>{{ .UserConfig.SubTitle }}</h3>
                     </hgroup>
                 </li>
             </ul>
@@ -35,6 +41,13 @@
         {{ .Content }}
     </main>
     <footer class="container">
+        <nav>
+            <ul>
+                {{ if .UserConfig.TwitterHandle}}
+                <li><a href="https://twitter.com/{{.UserConfig.TwitterHandle}}" rel="me">@{{.UserConfig.TwitterHandle}} on Twitter</a></li>
+                {{ end }}
+            </ul>
+        </nav>
     </footer>
 </body>
 

embed/initial/repo/config.yml

@@ -1 +0,0 @@
-domain: "http://localhost:8080"

embed/post.html

@@ -6,6 +6,7 @@
             <time class="dt-published" datetime="{{.Post.Meta.Date}}">
                 {{.Post.Meta.Date}}
             </time>
+            <a class="u-url" href="{{.Post.FullUrl}}">#</a>
         </small> 
     </hgroup>
     <hr>

go.mod

@@ -3,9 +3,14 @@ module h4kor/owl-blogs
 go 1.18
 
 require (
-	github.com/julienschmidt/httprouter v1.3.0 // indirect
+	github.com/julienschmidt/httprouter v1.3.0
-	github.com/yuin/goldmark v1.4.13 // indirect
+	github.com/spf13/cobra v1.5.0
-	github.com/yuin/goldmark-meta v1.1.0 // indirect
+	github.com/yuin/goldmark v1.4.13
-	golang.org/x/net v0.0.0-20220826154423-83b083e8dc8b // indirect
+	golang.org/x/net v0.0.0-20220826154423-83b083e8dc8b
-	gopkg.in/yaml.v2 v2.3.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0
+)
+
+require (
+	github.com/inconshreveable/mousetrap v1.0.1 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
 )

go.sum

@@ -1,11 +1,19 @@
+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
+github.com/inconshreveable/mousetrap v1.0.1 h1:U3uMjPSQEBMNp1lFxmllqCPM6P5u/Xq7Pgzkat/bFNc=
+github.com/inconshreveable/mousetrap v1.0.1/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/julienschmidt/httprouter v1.3.0 h1:U0609e9tgbseu3rBINet9P48AI/D3oJs4dN7jwJOQ1U=
 github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/spf13/cobra v1.5.0 h1:X+jTBEBqF0bHN+9cSMgmfuvv2VHJ9ezmFNf9Y/XstYU=
+github.com/spf13/cobra v1.5.0/go.mod h1:dWXEIy2H428czQCjInthrTRUg7yKbok+2Qi/yBIJoUM=
+github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
+github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/yuin/goldmark v1.4.13 h1:fVcFKWvrslecOb/tg+Cc05dkeYx540o0FuFt3nUVDoE=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
-github.com/yuin/goldmark-meta v1.1.0 h1:pWw+JLHGZe8Rk0EGsMVssiNb/AaPMHfSRszZeUeiOUc=
-github.com/yuin/goldmark-meta v1.1.0/go.mod h1:U4spWENafuA7Zyg+Lj5RqK/MF+ovMYtBvXi1lBb2VP0=
 golang.org/x/net v0.0.0-20220826154423-83b083e8dc8b h1:ZmngSVLe/wycRns9MKikG9OWIEjGcGAkacif7oYQaUY=
 golang.org/x/net v0.0.0-20220826154423-83b083e8dc8b/go.mod h1:YDH+HFinaLZZlnHAfSS6ZXJJ9M9t4Dl22yv3iI2vPwk=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
-gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=

owl_test.go

@@ -2,20 +2,44 @@ package owl_test
 
 import (
 	"h4kor/owl-blogs"
+	"io"
 	"math/rand"
+	"net/http"
+	"net/url"
 	"time"
 )
 
-type MockMicroformatParser struct{}
+type MockHtmlParser struct{}
 
-func (*MockMicroformatParser) ParseHEntry(data []byte) (owl.ParsedHEntry, error) {
+func (*MockHtmlParser) ParseHEntry(resp *http.Response) (owl.ParsedHEntry, error) {
 	return owl.ParsedHEntry{Title: "Mock Title"}, nil
+
+}
+func (*MockHtmlParser) ParseLinks(resp *http.Response) ([]string, error) {
+	return []string{"http://example.com"}, nil
+
+}
+func (*MockHtmlParser) ParseLinksFromString(string) ([]string, error) {
+	return []string{"http://example.com"}, nil
+
+}
+func (*MockHtmlParser) GetWebmentionEndpoint(resp *http.Response) (string, error) {
+	return "http://example.com/webmention", nil
+
 }
 
-type MockHttpRetriever struct{}
+type MockHttpClient struct{}
 
-func (*MockHttpRetriever) Get(url string) ([]byte, error) {
+func (*MockHttpClient) Get(url string) (resp *http.Response, err error) {
-	return []byte(""), nil
+	return &http.Response{}, nil
+}
+func (*MockHttpClient) Post(url, contentType string, body io.Reader) (resp *http.Response, err error) {
+
+	return &http.Response{}, nil
+}
+func (*MockHttpClient) PostForm(url string, data url.Values) (resp *http.Response, err error) {
+
+	return &http.Response{}, nil
 }
 
 func randomName() string {
@@ -37,13 +61,13 @@ func randomUserName() string {
 }
 
 func getTestUser() owl.User {
-	repo, _ := owl.CreateRepository(testRepoName())
+	repo, _ := owl.CreateRepository(testRepoName(), owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	return user
 }
 
-func getTestRepo() owl.Repository {
+func getTestRepo(config owl.RepoConfig) owl.Repository {
-	repo, _ := owl.CreateRepository(testRepoName())
+	repo, _ := owl.CreateRepository(testRepoName(), config)
 	return repo
 }
 

post.go

@@ -6,9 +6,11 @@ import (
 	"encoding/base64"
 	"fmt"
 	"io/ioutil"
+	"net/url"
 	"os"
 	"path"
 	"sort"
+	"time"
 
 	"github.com/yuin/goldmark"
 	"github.com/yuin/goldmark/extension"
@@ -32,6 +34,10 @@ type PostMeta struct {
 	Draft   bool     `yaml:"draft"`
 }
 
+type PostStatus struct {
+	Webmentions []WebmentionOut
+}
+
 func (post Post) Id() string {
 	return post.id
 }
@@ -40,6 +46,10 @@ func (post Post) Dir() string {
 	return path.Join(post.user.Dir(), "public", post.id)
 }
 
+func (post Post) StatusFile() string {
+	return path.Join(post.Dir(), "status.yml")
+}
+
 func (post Post) MediaDir() string {
 	return path.Join(post.Dir(), "media")
 }
@@ -81,6 +91,42 @@ func (post Post) Content() []byte {
 	return data
 }
 
+func (post Post) Status() PostStatus {
+	// read status file
+	// return parsed webmentions
+	fileName := post.StatusFile()
+	if !fileExists(fileName) {
+		return PostStatus{}
+	}
+
+	data, err := os.ReadFile(fileName)
+	if err != nil {
+		return PostStatus{}
+	}
+
+	status := PostStatus{}
+	err = yaml.Unmarshal(data, &status)
+	if err != nil {
+		return PostStatus{}
+	}
+
+	return status
+}
+
+func (post Post) PersistStatus(status PostStatus) error {
+	data, err := yaml.Marshal(status)
+	if err != nil {
+		return err
+	}
+
+	err = os.WriteFile(post.StatusFile(), data, 0644)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
 func (post Post) RenderedContent() bytes.Buffer {
 	data := post.Content()
 
@@ -98,7 +144,7 @@ func (post Post) RenderedContent() bytes.Buffer {
 	}
 
 	options := goldmark.WithRendererOptions()
-	if post.user.repo.AllowRawHtml() {
+	if config, _ := post.user.repo.Config(); config.AllowRawHtml {
 		options = goldmark.WithRendererOptions(
 			html.WithUnsafe(),
 		)
@@ -156,7 +202,7 @@ func (post *Post) WebmentionFile(source string) string {
 	return path.Join(post.WebmentionDir(), hashStr+".yml")
 }
 
-func (post *Post) PersistWebmention(webmention Webmention) error {
+func (post *Post) PersistWebmention(webmention WebmentionIn) error {
 	// ensure dir exists
 	os.MkdirAll(post.WebmentionDir(), 0755)
 
@@ -169,7 +215,7 @@ func (post *Post) PersistWebmention(webmention Webmention) error {
 	return os.WriteFile(fileName, data, 0644)
 }
 
-func (post *Post) Webmention(source string) (Webmention, error) {
+func (post *Post) Webmention(source string) (WebmentionIn, error) {
 	// ensure dir exists
 	os.MkdirAll(post.WebmentionDir(), 0755)
 
@@ -177,18 +223,18 @@ func (post *Post) Webmention(source string) (Webmention, error) {
 	fileName := post.WebmentionFile(source)
 	if !fileExists(fileName) {
 		// return error if file doesn't exist
-		return Webmention{}, fmt.Errorf("Webmention file not found: %s", source)
+		return WebmentionIn{}, fmt.Errorf("Webmention file not found: %s", source)
 	}
 
 	data, err := os.ReadFile(fileName)
 	if err != nil {
-		return Webmention{}, err
+		return WebmentionIn{}, err
 	}
 
-	mention := Webmention{}
+	mention := WebmentionIn{}
 	err = yaml.Unmarshal(data, &mention)
 	if err != nil {
-		return Webmention{}, err
+		return WebmentionIn{}, err
 	}
 
 	return mention, nil
@@ -198,7 +244,7 @@ func (post *Post) AddWebmention(source string) error {
 	// Check if file already exists
 	_, err := post.Webmention(source)
 	if err != nil {
-		webmention := Webmention{
+		webmention := WebmentionIn{
 			Source: source,
 		}
 		defer post.EnrichWebmention(source)
@@ -207,14 +253,55 @@ func (post *Post) AddWebmention(source string) error {
 	return nil
 }
 
+func (post *Post) AddOutgoingWebmention(target string) error {
+	status := post.Status()
+
+	// Check if file already exists
+	_, err := post.Webmention(target)
+	if err != nil {
+		webmention := WebmentionOut{
+			Target: target,
+		}
+		// if target is not in status, add it
+		for _, t := range status.Webmentions {
+			if t.Target == webmention.Target {
+				return nil
+			}
+		}
+		status.Webmentions = append(status.Webmentions, webmention)
+	}
+
+	return post.PersistStatus(status)
+}
+
+func (post *Post) UpdateOutgoingWebmention(webmention *WebmentionOut) error {
+	status := post.Status()
+
+	// if target is not in status, add it
+	replaced := false
+	for i, t := range status.Webmentions {
+		if t.Target == webmention.Target {
+			status.Webmentions[i] = *webmention
+			replaced = true
+			break
+		}
+	}
+
+	if !replaced {
+		status.Webmentions = append(status.Webmentions, *webmention)
+	}
+
+	return post.PersistStatus(status)
+}
+
 func (post *Post) EnrichWebmention(source string) error {
-	html, err := post.user.repo.Retriever.Get(source)
+	resp, err := post.user.repo.HttpClient.Get(source)
 	if err == nil {
 		webmention, err := post.Webmention(source)
 		if err != nil {
 			return err
 		}
-		entry, err := post.user.repo.Parser.ParseHEntry(html)
+		entry, err := post.user.repo.Parser.ParseHEntry(resp)
 		if err == nil {
 			webmention.Title = entry.Title
 			return post.PersistWebmention(webmention)
@@ -223,17 +310,17 @@ func (post *Post) EnrichWebmention(source string) error {
 	return err
 }
 
-func (post *Post) Webmentions() []Webmention {
+func (post *Post) Webmentions() []WebmentionIn {
 	// ensure dir exists
 	os.MkdirAll(post.WebmentionDir(), 0755)
 	files := listDir(post.WebmentionDir())
-	webmentions := []Webmention{}
+	webmentions := []WebmentionIn{}
 	for _, file := range files {
 		data, err := os.ReadFile(path.Join(post.WebmentionDir(), file))
 		if err != nil {
 			continue
 		}
-		mention := Webmention{}
+		mention := WebmentionIn{}
 		err = yaml.Unmarshal(data, &mention)
 		if err != nil {
 			continue
@@ -244,9 +331,9 @@ func (post *Post) Webmentions() []Webmention {
 	return webmentions
 }
 
-func (post *Post) ApprovedWebmentions() []Webmention {
+func (post *Post) ApprovedWebmentions() []WebmentionIn {
 	webmentions := post.Webmentions()
-	approved := []Webmention{}
+	approved := []WebmentionIn{}
 	for _, webmention := range webmentions {
 		if webmention.ApprovalStatus == "approved" {
 			approved = append(approved, webmention)
@@ -259,3 +346,54 @@ func (post *Post) ApprovedWebmentions() []Webmention {
 	})
 	return approved
 }
+
+func (post *Post) OutgoingWebmentions() []WebmentionOut {
+	status := post.Status()
+	return status.Webmentions
+
+}
+
+// ScanForLinks scans the post content for links and adds them to the
+// `status.yml` file for the post. The links are not scanned by this function.
+func (post *Post) ScanForLinks() error {
+	// this could be done in markdown parsing, but I don't want to
+	// rely on goldmark for this (yet)
+	postHtml := post.RenderedContent()
+	links, _ := post.user.repo.Parser.ParseLinksFromString(string(postHtml.Bytes()))
+	for _, link := range links {
+		post.AddOutgoingWebmention(link)
+	}
+	return nil
+}
+
+func (post *Post) SendWebmention(webmention WebmentionOut) error {
+	defer post.UpdateOutgoingWebmention(&webmention)
+	webmention.ScannedAt = time.Now()
+
+	resp, err := post.user.repo.HttpClient.Get(webmention.Target)
+	if err != nil {
+		webmention.Supported = false
+		return err
+	}
+
+	endpoint, err := post.user.repo.Parser.GetWebmentionEndpoint(resp)
+	if err != nil {
+		webmention.Supported = false
+		return err
+	}
+	webmention.Supported = true
+
+	// send webmention
+	payload := url.Values{}
+	payload.Set("source", post.FullUrl())
+	payload.Set("target", webmention.Target)
+	_, err = post.user.repo.HttpClient.PostForm(endpoint, payload)
+
+	if err != nil {
+		return err
+	}
+
+	// update webmention status
+	webmention.LastSentAt = time.Now()
+	return nil
+}

post_test.go

@@ -89,7 +89,7 @@ func TestDraftInMetaData(t *testing.T) {
 }
 
 func TestNoRawHTMLIfDisallowedByRepo(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("testuser")
 	post, _ := user.CreateNewPost("testpost")
 	content := "---\n"
@@ -107,8 +107,7 @@ func TestNoRawHTMLIfDisallowedByRepo(t *testing.T) {
 }
 
 func TestRawHTMLIfAllowedByRepo(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{AllowRawHtml: true})
-	repo.SetAllowRawHtml(true)
 	user, _ := repo.CreateUser("testuser")
 	post, _ := user.CreateNewPost("testpost")
 	content := "---\n"
@@ -126,8 +125,7 @@ func TestRawHTMLIfAllowedByRepo(t *testing.T) {
 }
 
 func TestLoadMeta(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{AllowRawHtml: true})
-	repo.SetAllowRawHtml(true)
 	user, _ := repo.CreateUser("testuser")
 	post, _ := user.CreateNewPost("testpost")
 
@@ -170,10 +168,10 @@ func TestLoadMeta(t *testing.T) {
 ///
 
 func TestPersistWebmention(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("testuser")
 	post, _ := user.CreateNewPost("testpost")
-	webmention := owl.Webmention{
+	webmention := owl.WebmentionIn{
 		Source: "http://example.com/source",
 	}
 	err := post.PersistWebmention(webmention)
@@ -191,9 +189,9 @@ func TestPersistWebmention(t *testing.T) {
 }
 
 func TestAddWebmentionCreatesFile(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
-	repo.Retriever = &MockHttpRetriever{}
+	repo.HttpClient = &MockHttpClient{}
-	repo.Parser = &MockMicroformatParser{}
+	repo.Parser = &MockHtmlParser{}
 	user, _ := repo.CreateUser("testuser")
 	post, _ := user.CreateNewPost("testpost")
 
@@ -209,9 +207,9 @@ func TestAddWebmentionCreatesFile(t *testing.T) {
 }
 
 func TestAddWebmentionNotOverwritingFile(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
-	repo.Retriever = &MockHttpRetriever{}
+	repo.HttpClient = &MockHttpClient{}
-	repo.Parser = &MockMicroformatParser{}
+	repo.Parser = &MockHtmlParser{}
 	user, _ := repo.CreateUser("testuser")
 	post, _ := user.CreateNewPost("testpost")
 
@@ -239,9 +237,9 @@ func TestAddWebmentionNotOverwritingFile(t *testing.T) {
 }
 
 func TestAddWebmentionAddsParsedTitle(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
-	repo.Retriever = &MockHttpRetriever{}
+	repo.HttpClient = &MockHttpClient{}
-	repo.Parser = &MockMicroformatParser{}
+	repo.Parser = &MockHtmlParser{}
 	user, _ := repo.CreateUser("testuser")
 	post, _ := user.CreateNewPost("testpost")
 
@@ -262,28 +260,28 @@ func TestAddWebmentionAddsParsedTitle(t *testing.T) {
 }
 
 func TestApprovedWebmentions(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser("testuser")
 	post, _ := user.CreateNewPost("testpost")
-	webmention := owl.Webmention{
+	webmention := owl.WebmentionIn{
 		Source:         "http://example.com/source",
 		ApprovalStatus: "approved",
 		RetrievedAt:    time.Now(),
 	}
 	post.PersistWebmention(webmention)
-	webmention = owl.Webmention{
+	webmention = owl.WebmentionIn{
 		Source:         "http://example.com/source2",
 		ApprovalStatus: "",
 		RetrievedAt:    time.Now().Add(time.Hour * -1),
 	}
 	post.PersistWebmention(webmention)
-	webmention = owl.Webmention{
+	webmention = owl.WebmentionIn{
 		Source:         "http://example.com/source3",
 		ApprovalStatus: "approved",
 		RetrievedAt:    time.Now().Add(time.Hour * -2),
 	}
 	post.PersistWebmention(webmention)
-	webmention = owl.Webmention{
+	webmention = owl.WebmentionIn{
 		Source:         "http://example.com/source4",
 		ApprovalStatus: "rejected",
 		RetrievedAt:    time.Now().Add(time.Hour * -3),
@@ -303,3 +301,83 @@ func TestApprovedWebmentions(t *testing.T) {
 	}
 
 }
+
+func TestScanningForLinks(t *testing.T) {
+	repo := getTestRepo(owl.RepoConfig{})
+	user, _ := repo.CreateUser("testuser")
+	post, _ := user.CreateNewPost("testpost")
+
+	content := "---\n"
+	content += "title: test\n"
+	content += "date: Wed, 17 Aug 2022 10:50:02 +0000\n"
+	content += "---\n"
+	content += "\n"
+	content += "[Hello](https://example.com/hello)\n"
+	os.WriteFile(post.ContentFile(), []byte(content), 0644)
+
+	post.ScanForLinks()
+	webmentions := post.OutgoingWebmentions()
+	if len(webmentions) != 1 {
+		t.Errorf("Expected 1 webmention, got %d", len(webmentions))
+	}
+	if webmentions[0].Target != "https://example.com/hello" {
+		t.Errorf("Expected target: %s, got %s", "https://example.com/hello", webmentions[0].Target)
+	}
+}
+
+func TestScanningForLinksDoesNotAddDuplicates(t *testing.T) {
+	repo := getTestRepo(owl.RepoConfig{})
+	user, _ := repo.CreateUser("testuser")
+	post, _ := user.CreateNewPost("testpost")
+
+	content := "---\n"
+	content += "title: test\n"
+	content += "date: Wed, 17 Aug 2022 10:50:02 +0000\n"
+	content += "---\n"
+	content += "\n"
+	content += "[Hello](https://example.com/hello)\n"
+	content += "[Hello](https://example.com/hello)\n"
+	os.WriteFile(post.ContentFile(), []byte(content), 0644)
+
+	post.ScanForLinks()
+	post.ScanForLinks()
+	post.ScanForLinks()
+	webmentions := post.OutgoingWebmentions()
+	if len(webmentions) != 1 {
+		t.Errorf("Expected 1 webmention, got %d", len(webmentions))
+	}
+	if webmentions[0].Target != "https://example.com/hello" {
+		t.Errorf("Expected target: %s, got %s", "https://example.com/hello", webmentions[0].Target)
+	}
+}
+
+func TestCanSendWebmention(t *testing.T) {
+	repo := getTestRepo(owl.RepoConfig{})
+	repo.HttpClient = &MockHttpClient{}
+	repo.Parser = &MockHtmlParser{}
+	user, _ := repo.CreateUser("testuser")
+	post, _ := user.CreateNewPost("testpost")
+
+	webmention := owl.WebmentionOut{
+		Target: "http://example.com",
+	}
+
+	err := post.SendWebmention(webmention)
+	if err != nil {
+		t.Errorf("Error sending webmention: %v", err)
+	}
+
+	webmentions := post.OutgoingWebmentions()
+
+	if len(webmentions) != 1 {
+		t.Errorf("Expected 1 webmention, got %d", len(webmentions))
+	}
+
+	if webmentions[0].Target != "http://example.com" {
+		t.Errorf("Expected target: %s, got %s", "http://example.com", webmentions[0].Target)
+	}
+
+	if webmentions[0].LastSentAt.IsZero() {
+		t.Errorf("Expected LastSentAt to be set")
+	}
+}

renderer.go

@@ -50,16 +50,14 @@ func renderIntoBaseTemplate(user User, data PageContent) (string, error) {
 		Title        string
 		Content      template.HTML
 		User         User
-		UserTitle    string
+		UserConfig   UserConfig
 		UserSubtitle string
 		HeaderColor  string
 	}{
-		Title:        data.Title,
+		Title:      data.Title,
-		Content:      data.Content,
+		Content:    data.Content,
-		User:         user,
+		User:       user,
-		UserTitle:    user_config.Title,
+		UserConfig: user_config,
-		UserSubtitle: user_config.SubTitle,
-		HeaderColor:  user_config.HeaderColor,
 	}
 
 	var html bytes.Buffer
@@ -68,13 +66,18 @@ func renderIntoBaseTemplate(user User, data PageContent) (string, error) {
 	return html.String(), nil
 }
 
-func RenderPost(post *Post) (string, error) {
+func renderPostContent(post *Post) (string, error) {
 	buf := post.RenderedContent()
 	postHtml, err := renderEmbedTemplate("embed/post.html", PostRenderData{
 		Title:   post.Title(),
 		Post:    post,
 		Content: template.HTML(buf.String()),
 	})
+	return postHtml, err
+}
+
+func RenderPost(post *Post) (string, error) {
+	postHtml, err := renderPostContent(post)
 	if err != nil {
 		return "", err
 	}

renderer_test.go

@@ -25,6 +25,25 @@ func TestCanRenderPost(t *testing.T) {
 
 }
 
+func TestRenderTwitterHandle(t *testing.T) {
+	user := getTestUser()
+	config, _ := user.Config()
+	config.TwitterHandle = "testhandle"
+	user.SetConfig(config)
+	post, _ := user.CreateNewPost("testpost")
+	result, err := owl.RenderPost(&post)
+
+	if err != nil {
+		t.Error("Error rendering post: " + err.Error())
+		return
+	}
+
+	if !strings.Contains(result, "href=\"https://twitter.com/testhandle\" rel=\"me\"") {
+		t.Error("Twitter handle not rendered. Got: " + result)
+	}
+
+}
+
 func TestRenderPostHEntry(t *testing.T) {
 	user := getTestUser()
 	post, _ := user.CreateNewPost("testpost")
@@ -107,7 +126,7 @@ func TestRenderIndexPageWithBrokenBaseTemplate(t *testing.T) {
 }
 
 func TestRenderUserList(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	repo.CreateUser("user1")
 	repo.CreateUser("user2")
 
@@ -162,14 +181,14 @@ func TestRenderPostIncludesRelToWebMention(t *testing.T) {
 func TestRenderPostAddsLinksToApprovedWebmention(t *testing.T) {
 	user := getTestUser()
 	post, _ := user.CreateNewPost("testpost")
-	webmention := owl.Webmention{
+	webmention := owl.WebmentionIn{
 		Source:         "http://example.com/source3",
 		Title:          "Test Title",
 		ApprovalStatus: "approved",
 		RetrievedAt:    time.Now().Add(time.Hour * -2),
 	}
 	post.PersistWebmention(webmention)
-	webmention = owl.Webmention{
+	webmention = owl.WebmentionIn{
 		Source:         "http://example.com/source4",
 		ApprovalStatus: "rejected",
 		RetrievedAt:    time.Now().Add(time.Hour * -3),
@@ -199,3 +218,17 @@ func TestRenderPostNotMentioningWebmentionsIfNoAvail(t *testing.T) {
 	}
 
 }
+
+func TestRenderIncludesFullUrl(t *testing.T) {
+	user := getTestUser()
+	post, _ := user.CreateNewPost("testpost")
+	result, _ := owl.RenderPost(&post)
+
+	if !strings.Contains(result, "class=\"u-url\"") {
+		t.Error("u-url not rendered. Got: " + result)
+	}
+	if !strings.Contains(result, post.FullUrl()) {
+		t.Error("Full url not rendered. Got: " + result)
+		t.Error("Expected: " + post.FullUrl())
+	}
+}

repository.go

@@ -16,20 +16,19 @@ var base_template string
 var VERSION = "0.0.1"
 
 type Repository struct {
-	name             string
+	name       string
-	single_user_mode bool
+	HttpClient HttpClient
-	active_user      string
+	Parser     HtmlParser
-	allow_raw_html   bool
-	Retriever        HttpRetriever
-	Parser           MicroformatParser
 }
 
 type RepoConfig struct {
-	Domain string `yaml:"domain"`
+	Domain       string `yaml:"domain"`
+	SingleUser   string `yaml:"single_user"`
+	AllowRawHtml bool   `yaml:"allow_raw_html"`
 }
 
-func CreateRepository(name string) (Repository, error) {
+func CreateRepository(name string, config RepoConfig) (Repository, error) {
-	newRepo := Repository{name: name, Parser: OwlMicroformatParser{}, Retriever: OwlHttpRetriever{}}
+	newRepo := Repository{name: name, Parser: OwlHtmlParser{}, HttpClient: &OwlHttpClient{}}
 	// check if repository already exists
 	if dirExists(newRepo.Dir()) {
 		return Repository{}, fmt.Errorf("Repository already exists")
@@ -39,6 +38,13 @@ func CreateRepository(name string) (Repository, error) {
 	os.Mkdir(newRepo.UsersDir(), 0755)
 	os.Mkdir(newRepo.StaticDir(), 0755)
 
+	// create config file
+	if config.Domain == "" {
+		config.Domain = "http://localhost:8080"
+	}
+	config_data, _ := yaml.Marshal(config)
+	os.WriteFile(path.Join(newRepo.Dir(), "config.yml"), config_data, 0644)
+
 	// copy all files from static_files embed.FS to StaticDir
 	staticFiles, _ := embed_files.ReadDir("embed/initial/static")
 	for _, file := range staticFiles {
@@ -63,7 +69,7 @@ func CreateRepository(name string) (Repository, error) {
 
 func OpenRepository(name string) (Repository, error) {
 
-	repo := Repository{name: name, Parser: OwlMicroformatParser{}, Retriever: OwlHttpRetriever{}}
+	repo := Repository{name: name, Parser: OwlHtmlParser{}, HttpClient: &OwlHttpClient{}}
 	if !dirExists(repo.Dir()) {
 		return Repository{}, fmt.Errorf("Repository does not exist: " + repo.Dir())
 	}
@@ -71,36 +77,6 @@ func OpenRepository(name string) (Repository, error) {
 	return repo, nil
 }
 
-func OpenSingleUserRepo(name string, user_name string) (Repository, error) {
-	repo, err := OpenRepository(name)
-	if err != nil {
-		return Repository{}, err
-	}
-	user, err := repo.GetUser(user_name)
-	if err != nil {
-		return Repository{}, err
-	}
-	repo.SetSingleUser(user)
-	return repo, nil
-}
-
-func (repo Repository) AllowRawHtml() bool {
-	return repo.allow_raw_html
-}
-
-func (repo *Repository) SetAllowRawHtml(allow bool) {
-	repo.allow_raw_html = allow
-}
-
-func (repo *Repository) SetSingleUser(user User) {
-	repo.single_user_mode = true
-	repo.active_user = user.name
-}
-
-func (repo Repository) SingleUserName() string {
-	return repo.active_user
-}
-
 func (repo Repository) Dir() string {
 	return repo.name
 }
@@ -114,7 +90,8 @@ func (repo Repository) UsersDir() string {
 }
 
 func (repo Repository) UserUrlPath(user User) string {
-	if repo.single_user_mode {
+	config, _ := repo.Config()
+	if config.SingleUser != "" {
 		return "/"
 	}
 	return "/user/" + user.name + "/"
@@ -136,8 +113,9 @@ func (repo Repository) Template() (string, error) {
 }
 
 func (repo Repository) Users() ([]User, error) {
-	if repo.single_user_mode {
+	config, _ := repo.Config()
-		return []User{{repo: &repo, name: repo.active_user}}, nil
+	if config.SingleUser != "" {
+		return []User{{repo: &repo, name: config.SingleUser}}, nil
 	}
 
 	userNames := listDir(repo.UsersDir())

repository_test.go

@@ -9,7 +9,7 @@ import (
 
 func TestCanCreateRepository(t *testing.T) {
 	repoName := testRepoName()
-	_, err := owl.CreateRepository(repoName)
+	_, err := owl.CreateRepository(repoName, owl.RepoConfig{})
 	if err != nil {
 		t.Error("Error creating repository: ", err.Error())
 	}
@@ -18,8 +18,8 @@ func TestCanCreateRepository(t *testing.T) {
 
 func TestCannotCreateExistingRepository(t *testing.T) {
 	repoName := testRepoName()
-	owl.CreateRepository(repoName)
+	owl.CreateRepository(repoName, owl.RepoConfig{})
-	_, err := owl.CreateRepository(repoName)
+	_, err := owl.CreateRepository(repoName, owl.RepoConfig{})
 	if err == nil {
 		t.Error("No error returned when creating existing repository")
 	}
@@ -27,7 +27,7 @@ func TestCannotCreateExistingRepository(t *testing.T) {
 
 func TestCanCreateANewUser(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	if _, err := os.Stat(path.Join(user.Dir(), "")); err != nil {
 		t.Error("User directory not created")
@@ -36,7 +36,7 @@ func TestCanCreateANewUser(t *testing.T) {
 
 func TestCannotRecreateExisitingUser(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	userName := randomUserName()
 	repo.CreateUser(userName)
 	_, err := repo.CreateUser(userName)
@@ -47,7 +47,7 @@ func TestCannotRecreateExisitingUser(t *testing.T) {
 
 func TestCreateUserAddsVersionFile(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	if _, err := os.Stat(path.Join(user.Dir(), "/meta/VERSION")); err != nil {
 		t.Error("Version file not created")
@@ -56,7 +56,7 @@ func TestCreateUserAddsVersionFile(t *testing.T) {
 
 func TestCreateUserAddsBaseHtmlFile(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	if _, err := os.Stat(path.Join(user.Dir(), "/meta/base.html")); err != nil {
 		t.Error("Base html file not created")
@@ -65,7 +65,7 @@ func TestCreateUserAddsBaseHtmlFile(t *testing.T) {
 
 func TestCreateUserAddConfigYml(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	if _, err := os.Stat(path.Join(user.Dir(), "/meta/config.yml")); err != nil {
 		t.Error("Config file not created")
@@ -74,7 +74,7 @@ func TestCreateUserAddConfigYml(t *testing.T) {
 
 func TestCreateUserAddsPublicFolder(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	if _, err := os.Stat(path.Join(user.Dir(), "/public")); err != nil {
 		t.Error("Public folder not created")
@@ -83,7 +83,7 @@ func TestCreateUserAddsPublicFolder(t *testing.T) {
 
 func TestCanListRepoUsers(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user1, _ := repo.CreateUser(randomUserName())
 	user2, _ := repo.CreateUser(randomUserName())
 	// Create a new post
@@ -101,7 +101,7 @@ func TestCanListRepoUsers(t *testing.T) {
 func TestCanOpenRepository(t *testing.T) {
 	// Create a new user
 	repoName := testRepoName()
-	repo, _ := owl.CreateRepository(repoName)
+	repo, _ := owl.CreateRepository(repoName, owl.RepoConfig{})
 	// Open the repository
 	repo2, err := owl.OpenRepository(repoName)
 	if err != nil {
@@ -121,7 +121,7 @@ func TestCannotOpenNonExisitingRepo(t *testing.T) {
 
 func TestGetUser(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	// Get the user
 	user2, err := repo.GetUser(user.Name())
@@ -135,7 +135,7 @@ func TestGetUser(t *testing.T) {
 
 func TestCannotGetNonexistingUser(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	_, err := repo.GetUser(randomUserName())
 	if err == nil {
 		t.Error("No error returned when getting non-existing user")
@@ -144,7 +144,7 @@ func TestCannotGetNonexistingUser(t *testing.T) {
 
 func TestGetStaticDirOfRepo(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	// Get the user
 	staticDir := repo.StaticDir()
 	if staticDir == "" {
@@ -154,7 +154,7 @@ func TestGetStaticDirOfRepo(t *testing.T) {
 
 func TestNewRepoGetsStaticFiles(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	if _, err := os.Stat(repo.StaticDir()); err != nil {
 		t.Error("Static directory not found")
 	}
@@ -169,7 +169,7 @@ func TestNewRepoGetsStaticFiles(t *testing.T) {
 
 func TestNewRepoGetsStaticFilesPicoCSSWithContent(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	file, err := os.Open(path.Join(repo.StaticDir(), "pico.min.css"))
 	if err != nil {
 		t.Error("Error opening pico.min.css")
@@ -183,7 +183,7 @@ func TestNewRepoGetsStaticFilesPicoCSSWithContent(t *testing.T) {
 
 func TestNewRepoGetsBaseHtml(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	if _, err := os.Stat(path.Join(repo.Dir(), "/base.html")); err != nil {
 		t.Error("Base html file not found")
 	}
@@ -191,7 +191,7 @@ func TestNewRepoGetsBaseHtml(t *testing.T) {
 
 func TestCanGetRepoTemplate(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	// Get the user
 	template, err := repo.Template()
 	if err != nil {
@@ -206,13 +206,13 @@ func TestCanOpenRepositoryInSingleUserMode(t *testing.T) {
 	// Create a new user
 	repoName := testRepoName()
 	userName := randomUserName()
-	created_repo, _ := owl.CreateRepository(repoName)
+	created_repo, _ := owl.CreateRepository(repoName, owl.RepoConfig{SingleUser: userName})
 	created_repo.CreateUser(userName)
 	created_repo.CreateUser(randomUserName())
 	created_repo.CreateUser(randomUserName())
 
 	// Open the repository
-	repo, _ := owl.OpenSingleUserRepo(repoName, userName)
+	repo, _ := owl.OpenRepository(repoName)
 
 	users, _ := repo.Users()
 	if len(users) != 1 {
@@ -227,11 +227,11 @@ func TestSingleUserRepoUserUrlPathIsSimple(t *testing.T) {
 	// Create a new user
 	repoName := testRepoName()
 	userName := randomUserName()
-	created_repo, _ := owl.CreateRepository(repoName)
+	created_repo, _ := owl.CreateRepository(repoName, owl.RepoConfig{SingleUser: userName})
 	created_repo.CreateUser(userName)
 
 	// Open the repository
-	repo, _ := owl.OpenSingleUserRepo(repoName, userName)
+	repo, _ := owl.OpenRepository(repoName)
 	user, _ := repo.GetUser(userName)
 	if user.UrlPath() != "/" {
 		t.Error("User url is not '/'. Got: ", user.UrlPath())
@@ -239,7 +239,7 @@ func TestSingleUserRepoUserUrlPathIsSimple(t *testing.T) {
 }
 
 func TestCanGetMapWithAllPostAliases(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	post, _ := user.CreateNewPost("test-1")
 
@@ -276,7 +276,7 @@ func TestCanGetMapWithAllPostAliases(t *testing.T) {
 }
 
 func TestAliasesHaveCorrectPost(t *testing.T) {
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	post1, _ := user.CreateNewPost("test-1")
 	post2, _ := user.CreateNewPost("test-2")

user.go

@@ -18,9 +18,10 @@ type User struct {
 }
 
 type UserConfig struct {
-	Title       string `yaml:"title"`
+	Title         string `yaml:"title"`
-	SubTitle    string `yaml:"subtitle"`
+	SubTitle      string `yaml:"subtitle"`
-	HeaderColor string `yaml:"header_color"`
+	HeaderColor   string `yaml:"header_color"`
+	TwitterHandle string `yaml:"twitter_handle"`
 }
 
 func (user User) Dir() string {

user_test.go

@@ -11,7 +11,7 @@ import (
 
 func TestCreateNewPostCreatesEntryInPublic(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	// Create a new post
 	user.CreateNewPost("testpost")
@@ -26,7 +26,7 @@ func TestCreateNewPostCreatesEntryInPublic(t *testing.T) {
 
 func TestCreateNewPostCreatesMediaDir(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	// Create a new post
 	post, _ := user.CreateNewPost("testpost")
@@ -49,7 +49,7 @@ func TestCreateNewPostAddsDateToMetaBlock(t *testing.T) {
 
 func TestCreateNewPostMultipleCalls(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	// Create a new post
 	user.CreateNewPost("testpost")
@@ -66,7 +66,7 @@ func TestCreateNewPostMultipleCalls(t *testing.T) {
 
 func TestCanListUserPosts(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	// Create a new post
 	user.CreateNewPost("testpost")
@@ -83,7 +83,7 @@ func TestCanListUserPosts(t *testing.T) {
 
 func TestCannotListUserPostsInSubdirectories(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	// Create a new post
 	user.CreateNewPost("testpost")
@@ -120,7 +120,7 @@ func TestCannotListUserPostsInSubdirectories(t *testing.T) {
 
 func TestCannotListUserPostsWithoutIndexMd(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	// Create a new post
 	user.CreateNewPost("testpost")
@@ -149,7 +149,7 @@ func TestCannotListUserPostsWithoutIndexMd(t *testing.T) {
 
 func TestListUserPostsDoesNotIncludeDrafts(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	// Create a new post
 	post, _ := user.CreateNewPost("testpost")
@@ -170,7 +170,7 @@ func TestListUserPostsDoesNotIncludeDrafts(t *testing.T) {
 
 func TestListUsersDraftsExcludedRealWorld(t *testing.T) {
 	// Create a new user
-	repo := getTestRepo()
+	repo := getTestRepo(owl.RepoConfig{})
 	user, _ := repo.CreateUser(randomUserName())
 	// Create a new post
 	post, _ := user.CreateNewPost("testpost")

webmention.go

@@ -3,48 +3,52 @@ package owl
 import (
 	"bytes"
 	"errors"
+	"io"
 	"net/http"
+	"net/url"
 	"strings"
 	"time"
 
 	"golang.org/x/net/html"
 )
 
-type Webmention struct {
+type WebmentionIn struct {
 	Source         string    `yaml:"source"`
 	Title          string    `yaml:"title"`
 	ApprovalStatus string    `yaml:"approval_status"`
 	RetrievedAt    time.Time `yaml:"retrieved_at"`
 }
 
-type HttpRetriever interface {
+type WebmentionOut struct {
-	Get(url string) ([]byte, error)
+	Target     string    `yaml:"target"`
+	Supported  bool      `yaml:"supported"`
+	ScannedAt  time.Time `yaml:"scanned_at"`
+	LastSentAt time.Time `yaml:"last_sent_at"`
 }
 
-type MicroformatParser interface {
+type HttpClient interface {
-	ParseHEntry(data []byte) (ParsedHEntry, error)
+	Get(url string) (resp *http.Response, err error)
+	Post(url, contentType string, body io.Reader) (resp *http.Response, err error)
+	PostForm(url string, data url.Values) (resp *http.Response, err error)
 }
 
-type OwlHttpRetriever struct{}
+type HtmlParser interface {
+	ParseHEntry(resp *http.Response) (ParsedHEntry, error)
+	ParseLinks(resp *http.Response) ([]string, error)
+	ParseLinksFromString(string) ([]string, error)
+	GetWebmentionEndpoint(resp *http.Response) (string, error)
+}
 
-type OwlMicroformatParser struct{}
+type OwlHttpClient = http.Client
+
+type OwlHtmlParser struct{}
 
 type ParsedHEntry struct {
 	Title string
 }
 
-func (OwlHttpRetriever) Get(url string) ([]byte, error) {
-	resp, err := http.Get(url)
-	if err != nil {
-		return []byte{}, err
-	}
-	var data []byte
-	_, err = resp.Body.Read(data)
-	// TODO: encoding
-	return data, err
-}
-
 func collectText(n *html.Node, buf *bytes.Buffer) {
+
 	if n.Type == html.TextNode {
 		buf.WriteString(n.Data)
 	}
@@ -53,8 +57,21 @@ func collectText(n *html.Node, buf *bytes.Buffer) {
 	}
 }
 
-func (OwlMicroformatParser) ParseHEntry(data []byte) (ParsedHEntry, error) {
+func readResponseBody(resp *http.Response) (string, error) {
-	doc, err := html.Parse(strings.NewReader(string(data)))
+	defer resp.Body.Close()
+	bodyBytes, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
+	}
+	return string(bodyBytes), nil
+}
+
+func (OwlHtmlParser) ParseHEntry(resp *http.Response) (ParsedHEntry, error) {
+	htmlStr, err := readResponseBody(resp)
+	if err != nil {
+		return ParsedHEntry{}, err
+	}
+	doc, err := html.Parse(strings.NewReader(htmlStr))
 	if err != nil {
 		return ParsedHEntry{}, err
 	}
@@ -95,3 +112,110 @@ func (OwlMicroformatParser) ParseHEntry(data []byte) (ParsedHEntry, error) {
 	}
 	return findHFeed(doc)
 }
+
+func (OwlHtmlParser) ParseLinks(resp *http.Response) ([]string, error) {
+	htmlStr, err := readResponseBody(resp)
+	if err != nil {
+		return []string{}, err
+	}
+	return OwlHtmlParser{}.ParseLinksFromString(htmlStr)
+}
+
+func (OwlHtmlParser) ParseLinksFromString(htmlStr string) ([]string, error) {
+	doc, err := html.Parse(strings.NewReader(htmlStr))
+	if err != nil {
+		return make([]string, 0), err
+	}
+
+	var findLinks func(*html.Node) ([]string, error)
+	findLinks = func(n *html.Node) ([]string, error) {
+		links := make([]string, 0)
+		if n.Type == html.ElementNode && n.Data == "a" {
+			for _, attr := range n.Attr {
+				if attr.Key == "href" {
+					links = append(links, attr.Val)
+				}
+			}
+		}
+		for c := n.FirstChild; c != nil; c = c.NextSibling {
+			childLinks, _ := findLinks(c)
+			links = append(links, childLinks...)
+		}
+		return links, nil
+	}
+	return findLinks(doc)
+}
+
+func (OwlHtmlParser) GetWebmentionEndpoint(resp *http.Response) (string, error) {
+	//request url
+	requestUrl := resp.Request.URL
+
+	// Check link headers
+	for _, linkHeader := range resp.Header["Link"] {
+		linkHeaderParts := strings.Split(linkHeader, ",")
+		for _, linkHeaderPart := range linkHeaderParts {
+			linkHeaderPart = strings.TrimSpace(linkHeaderPart)
+			params := strings.Split(linkHeaderPart, ";")
+			if len(params) != 2 {
+				continue
+			}
+			for _, param := range params[1:] {
+				param = strings.TrimSpace(param)
+				if strings.Contains(param, "webmention") {
+					link := strings.Split(params[0], ";")[0]
+					link = strings.Trim(link, "<>")
+					linkUrl, err := url.Parse(link)
+					if err != nil {
+						return "", err
+					}
+					return requestUrl.ResolveReference(linkUrl).String(), nil
+				}
+			}
+		}
+	}
+
+	htmlStr, err := readResponseBody(resp)
+	if err != nil {
+		return "", err
+	}
+	doc, err := html.Parse(strings.NewReader(htmlStr))
+	if err != nil {
+		return "", err
+	}
+
+	var findEndpoint func(*html.Node) (string, error)
+	findEndpoint = func(n *html.Node) (string, error) {
+		if n.Type == html.ElementNode && (n.Data == "link" || n.Data == "a") {
+			for _, attr := range n.Attr {
+				if attr.Key == "rel" {
+					vals := strings.Split(attr.Val, " ")
+					for _, val := range vals {
+						if val == "webmention" {
+							for _, attr := range n.Attr {
+								if attr.Key == "href" {
+									return attr.Val, nil
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+		for c := n.FirstChild; c != nil; c = c.NextSibling {
+			endpoint, err := findEndpoint(c)
+			if err == nil {
+				return endpoint, nil
+			}
+		}
+		return "", errors.New("no webmention endpoint found")
+	}
+	linkUrlStr, err := findEndpoint(doc)
+	if err != nil {
+		return "", err
+	}
+	linkUrl, err := url.Parse(linkUrlStr)
+	if err != nil {
+		return "", err
+	}
+	return requestUrl.ResolveReference(linkUrl).String(), nil
+}

webmention_test.go

@@ -1,18 +1,32 @@
 package owl_test
 
 import (
+	"bytes"
 	"h4kor/owl-blogs"
+	"io"
+	"net/http"
+	"net/url"
 	"testing"
 )
 
+func constructResponse(html []byte) *http.Response {
+	url, _ := url.Parse("http://example.com/foo/bar")
+	return &http.Response{
+		Request: &http.Request{
+			URL: url,
+		},
+		Body: io.NopCloser(bytes.NewReader([]byte(html))),
+	}
+}
+
 //
 // https://www.w3.org/TR/webmention/#h-webmention-verification
 //
 
 func TestParseValidHEntry(t *testing.T) {
 	html := []byte("<div class=\"h-entry\"><div class=\"p-name\">Foo</div></div>")
-	parser := &owl.OwlMicroformatParser{}
+	parser := &owl.OwlHtmlParser{}
-	entry, err := parser.ParseHEntry(html)
+	entry, err := parser.ParseHEntry(&http.Response{Body: io.NopCloser(bytes.NewReader(html))})
 
 	if err != nil {
 		t.Errorf("Unable to parse feed: %v", err)
@@ -24,8 +38,8 @@ func TestParseValidHEntry(t *testing.T) {
 
 func TestParseValidHEntryWithoutTitle(t *testing.T) {
 	html := []byte("<div class=\"h-entry\"></div><div class=\"p-name\">Foo</div>")
-	parser := &owl.OwlMicroformatParser{}
+	parser := &owl.OwlHtmlParser{}
-	entry, err := parser.ParseHEntry(html)
+	entry, err := parser.ParseHEntry(&http.Response{Body: io.NopCloser(bytes.NewReader(html))})
 
 	if err != nil {
 		t.Errorf("Unable to parse feed: %v", err)
@@ -34,3 +48,142 @@ func TestParseValidHEntryWithoutTitle(t *testing.T) {
 		t.Errorf("Wrong Title. Expected %v, got %v", "Foo", entry.Title)
 	}
 }
+
+func TestGetWebmentionEndpointLink(t *testing.T) {
+	html := []byte("<link rel=\"webmention\" href=\"http://example.com/webmention\" />")
+	parser := &owl.OwlHtmlParser{}
+	endpoint, err := parser.GetWebmentionEndpoint(constructResponse(html))
+
+	if err != nil {
+		t.Errorf("Unable to parse feed: %v", err)
+	}
+	if endpoint != "http://example.com/webmention" {
+		t.Errorf("Wrong endpoint. Expected %v, got %v", "http://example.com/webmention", endpoint)
+	}
+}
+
+func TestGetWebmentionEndpointLinkA(t *testing.T) {
+	html := []byte("<a rel=\"webmention\" href=\"http://example.com/webmention\" />")
+	parser := &owl.OwlHtmlParser{}
+	endpoint, err := parser.GetWebmentionEndpoint(constructResponse(html))
+
+	if err != nil {
+		t.Errorf("Unable to parse feed: %v", err)
+	}
+	if endpoint != "http://example.com/webmention" {
+		t.Errorf("Wrong endpoint. Expected %v, got %v", "http://example.com/webmention", endpoint)
+	}
+}
+
+func TestGetWebmentionEndpointLinkAFakeWebmention(t *testing.T) {
+	html := []byte("<a rel=\"not-webmention\" href=\"http://example.com/foo\" /><a rel=\"webmention\" href=\"http://example.com/webmention\" />")
+	parser := &owl.OwlHtmlParser{}
+	endpoint, err := parser.GetWebmentionEndpoint(constructResponse(html))
+
+	if err != nil {
+		t.Errorf("Unable to parse feed: %v", err)
+	}
+	if endpoint != "http://example.com/webmention" {
+		t.Errorf("Wrong endpoint. Expected %v, got %v", "http://example.com/webmention", endpoint)
+	}
+}
+
+func TestGetWebmentionEndpointLinkHeader(t *testing.T) {
+	html := []byte("")
+	parser := &owl.OwlHtmlParser{}
+	resp := constructResponse(html)
+	resp.Header = http.Header{"Link": []string{"<http://example.com/webmention>; rel=\"webmention\""}}
+	endpoint, err := parser.GetWebmentionEndpoint(resp)
+
+	if err != nil {
+		t.Errorf("Unable to parse feed: %v", err)
+	}
+	if endpoint != "http://example.com/webmention" {
+		t.Errorf("Wrong endpoint. Expected %v, got %v", "http://example.com/webmention", endpoint)
+	}
+}
+
+func TestGetWebmentionEndpointLinkHeaderCommas(t *testing.T) {
+	html := []byte("")
+	parser := &owl.OwlHtmlParser{}
+	resp := constructResponse(html)
+	resp.Header = http.Header{
+		"Link": []string{"<https://webmention.rocks/test/19/webmention/error>; rel=\"other\", <https://webmention.rocks/test/19/webmention>; rel=\"webmention\""},
+	}
+	endpoint, err := parser.GetWebmentionEndpoint(resp)
+
+	if err != nil {
+		t.Errorf("Unable to parse feed: %v", err)
+	}
+	if endpoint != "https://webmention.rocks/test/19/webmention" {
+		t.Errorf("Wrong endpoint. Expected %v, got %v", "https://webmention.rocks/test/19/webmention", endpoint)
+	}
+}
+
+func TestGetWebmentionEndpointRelativeLink(t *testing.T) {
+	html := []byte("<link rel=\"webmention\" href=\"/webmention\" />")
+	parser := &owl.OwlHtmlParser{}
+	endpoint, err := parser.GetWebmentionEndpoint(constructResponse(html))
+
+	if err != nil {
+		t.Errorf("Unable to parse feed: %v", err)
+	}
+	if endpoint != "http://example.com/webmention" {
+		t.Errorf("Wrong endpoint. Expected %v, got %v", "http://example.com/webmention", endpoint)
+	}
+}
+
+func TestGetWebmentionEndpointRelativeLinkInHeader(t *testing.T) {
+	html := []byte("<link rel=\"webmention\" href=\"/webmention\" />")
+	parser := &owl.OwlHtmlParser{}
+	resp := constructResponse(html)
+	resp.Header = http.Header{"Link": []string{"</webmention>; rel=\"webmention\""}}
+	endpoint, err := parser.GetWebmentionEndpoint(resp)
+
+	if err != nil {
+		t.Errorf("Unable to parse feed: %v", err)
+	}
+	if endpoint != "http://example.com/webmention" {
+		t.Errorf("Wrong endpoint. Expected %v, got %v", "http://example.com/webmention", endpoint)
+	}
+}
+
+func TestRealWorldWebmention(t *testing.T) {
+	links := []string{
+		"https://webmention.rocks/test/1",
+		"https://webmention.rocks/test/2",
+		"https://webmention.rocks/test/3",
+		"https://webmention.rocks/test/4",
+		"https://webmention.rocks/test/5",
+		"https://webmention.rocks/test/6",
+		"https://webmention.rocks/test/7",
+		"https://webmention.rocks/test/8",
+		"https://webmention.rocks/test/9",
+		// "https://webmention.rocks/test/10", // not supported
+		"https://webmention.rocks/test/11",
+		"https://webmention.rocks/test/12",
+		"https://webmention.rocks/test/13",
+		"https://webmention.rocks/test/14",
+		"https://webmention.rocks/test/15",
+		"https://webmention.rocks/test/16",
+		"https://webmention.rocks/test/17",
+		"https://webmention.rocks/test/18",
+		"https://webmention.rocks/test/19",
+		"https://webmention.rocks/test/20",
+		"https://webmention.rocks/test/21",
+		"https://webmention.rocks/test/22",
+		"https://webmention.rocks/test/23/page",
+	}
+
+	for _, link := range links {
+		parser := &owl.OwlHtmlParser{}
+		client := &owl.OwlHttpClient{}
+		html, _ := client.Get(link)
+		_, err := parser.GetWebmentionEndpoint(html)
+
+		if err != nil {
+			t.Errorf("Unable to find webmention: %v for link %v", err, link)
+		}
+	}
+
+}