Subscribe to feeds with the Android Share menu

go.mod

@@ -21,6 +21,7 @@ require (
 	google.golang.org/appengine v1.6.6 // indirect
 	google.golang.org/protobuf v1.25.0 // indirect
 	gopkg.in/square/go-jose.v2 v2.5.0 // indirect
+	mvdan.cc/xurls/v2 v2.2.0
 )
 
 go 1.11

go.sum

@@ -331,6 +331,7 @@ github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40T
 github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
+github.com/rogpeppe/go-internal v1.5.2/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f/go.mod h1:sm1tb6uqfes/u+d4ooFouqFdy9/2g9QGwK3SQygK0Ts=
@@ -576,6 +577,9 @@ honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWh
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+mvdan.cc/xurls v1.1.0 h1:kj0j2lonKseISJCiq1Tfk+iTv65dDGCl0rTbanXJGGc=
+mvdan.cc/xurls/v2 v2.2.0 h1:NSZPykBXJFCetGZykLAxaL6SIpvbVy/UFEniIfHAa8A=
+mvdan.cc/xurls/v2 v2.2.0/go.mod h1:EV1RMtya9D6G5DMYPGD8zTQzaHet6Jh8gFlRgGRJeO8=
 rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
 sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=

ui/static_manifest.go

@@ -14,6 +14,18 @@ import (
 )
 
 func (h *handler) showWebManifest(w http.ResponseWriter, r *http.Request) {
+	type webManifestShareTargetParams struct {
+		URL  string `json:"url"`
+		Text string `json:"text"`
+	}
+
+	type webManifestShareTarget struct {
+		Action  string                       `json:"action"`
+		Method  string                       `json:"method"`
+		Enctype string                       `json:"enctype"`
+		Params  webManifestShareTargetParams `json:"params"`
+	}
+
 	type webManifestIcon struct {
 		Source string `json:"src"`
 		Sizes  string `json:"sizes"`
@@ -21,14 +33,15 @@ func (h *handler) showWebManifest(w http.ResponseWriter, r *http.Request) {
 	}
 
 	type webManifest struct {
-		Name            string            `json:"name"`
-		Description     string            `json:"description"`
-		ShortName       string            `json:"short_name"`
-		StartURL        string            `json:"start_url"`
-		Icons           []webManifestIcon `json:"icons"`
-		Display         string            `json:"display"`
-		ThemeColor      string            `json:"theme_color"`
-		BackgroundColor string            `json:"background_color"`
+		Name            string                 `json:"name"`
+		Description     string                 `json:"description"`
+		ShortName       string                 `json:"short_name"`
+		StartURL        string                 `json:"start_url"`
+		Icons           []webManifestIcon      `json:"icons"`
+		ShareTarget     webManifestShareTarget `json:"share_target"`
+		Display         string                 `json:"display"`
+		ThemeColor      string                 `json:"theme_color"`
+		BackgroundColor string                 `json:"background_color"`
 	}
 
 	themeColor := model.ThemeColor(request.UserTheme(r))
@@ -45,6 +58,12 @@ func (h *handler) showWebManifest(w http.ResponseWriter, r *http.Request) {
 			webManifestIcon{Source: route.Path(h.router, "appIcon", "filename", "icon-192.png"), Sizes: "192x192", Type: "image/png"},
 			webManifestIcon{Source: route.Path(h.router, "appIcon", "filename", "icon-512.png"), Sizes: "512x512", Type: "image/png"},
 		},
+		ShareTarget: webManifestShareTarget{
+			Action:  route.Path(h.router, "bookmarklet"),
+			Method:  http.MethodGet,
+			Enctype: "application/x-www-form-urlencoded",
+			Params:  webManifestShareTargetParams{URL: "uri", Text: "text"},
+		},
 	}
 
 	json.OK(w, r, manifest)

ui/subscription_bookmarklet.go

@@ -13,6 +13,8 @@ import (
 	"miniflux.app/ui/form"
 	"miniflux.app/ui/session"
 	"miniflux.app/ui/view"
+
+	"mvdan.cc/xurls/v2"
 )
 
 func (h *handler) bookmarklet(w http.ResponseWriter, r *http.Request) {
@@ -33,6 +35,17 @@ func (h *handler) bookmarklet(w http.ResponseWriter, r *http.Request) {
 
 	bookmarkletURL := request.QueryStringParam(r, "uri", "")
 
+	// Extract URL from text supplied by Web Share Target API.
+	//
+	// This is because Android intents have no concept of URL, so apps
+	// just shove a URL directly into the EXTRA_TEXT intent field.
+	//
+	// See https://bugs.chromium.org/p/chromium/issues/detail?id=789379.
+	text := request.QueryStringParam(r, "text", "")
+	if text != "" && bookmarkletURL == "" {
+		bookmarkletURL = xurls.Relaxed().FindString(text)
+	}
+
 	view.Set("form", form.SubscriptionForm{URL: bookmarkletURL})
 	view.Set("categories", categories)
 	view.Set("menu", "feeds")