Move fakeAPInstances to web-core/silobridge package

This adds support for mentioning profiles on the following sites:

- deviantart.com
- facebook.com
- flickr.com
- github.com
- instagram.com
- reddit.com
- wattpad.com
- youtube.com

database.go

@@ -14,6 +14,7 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
+	"github.com/writeas/web-core/silobridge"
 	wf_db "github.com/writeas/writefreely/db"
 	"net/http"
 	"strings"
@@ -2659,8 +2660,8 @@ func (db *datastore) GetProfilePageFromHandle(app *App, handle string) (string,
 	domain := parts[1]
 
 	// Check non-AP instances
-	if prefix, ok := fakeAPInstances[domain]; ok {
+	if siloProfileURL := silobridge.Profile(parts[0], domain); siloProfileURL != "" {
-		return "https://" + domain + "/" + prefix + parts[0], nil
+		return siloProfileURL, nil
 	}
 
 	remoteUser, err := getRemoteUserFromHandle(app, handle)

go.mod

@@ -46,7 +46,7 @@ require (
 	github.com/writeas/nerds v1.0.0
 	github.com/writeas/saturday v1.7.2-0.20200427193424-392b95a03320
 	github.com/writeas/slug v1.2.0
-	github.com/writeas/web-core v1.2.0
+	github.com/writeas/web-core v1.2.1-0.20200813161734-68a680d1b03c
 	github.com/writefreely/go-nodeinfo v1.2.0
 	golang.org/x/crypto v0.0.0-20200109152110-61a87790db17
 	golang.org/x/lint v0.0.0-20181217174547-8f45f776aaf1 // indirect

go.sum

@@ -167,6 +167,8 @@ github.com/writeas/slug v1.2.0 h1:EMQ+cwLiOcA6EtFwUgyw3Ge18x9uflUnOnR6bp/J+/g=
 github.com/writeas/slug v1.2.0/go.mod h1:RE8shOqQP3YhsfsQe0L3RnuejfQ4Mk+JjY5YJQFubfQ=
 github.com/writeas/web-core v1.2.0 h1:CYqvBd+byi1cK4mCr1NZ6CjILuMOFmiFecv+OACcmG0=
 github.com/writeas/web-core v1.2.0/go.mod h1:vTYajviuNBAxjctPp2NUYdgjofywVkxUGpeaERF3SfI=
+github.com/writeas/web-core v1.2.1-0.20200813161734-68a680d1b03c h1:/aPb8WKtC+Ga/xUEcME0iX3VKBeeJ02kXCaROaZ21SE=
+github.com/writeas/web-core v1.2.1-0.20200813161734-68a680d1b03c/go.mod h1:vTYajviuNBAxjctPp2NUYdgjofywVkxUGpeaERF3SfI=
 github.com/writefreely/go-nodeinfo v1.2.0 h1:La+YbTCvmpTwFhBSlebWDDL81N88Qf/SCAvRLR7F8ss=
 github.com/writefreely/go-nodeinfo v1.2.0/go.mod h1:UTvE78KpcjYOlRHupZIiSEFcXHioTXuacCbHU+CAcPg=
 golang.org/x/crypto v0.0.0-20180527072434-ab813273cd59 h1:hk3yo72LXLapY9EXVttc3Z1rLOxT9IuAPPX3GpY2+jo=

silobridge.go

@@ -1,10 +0,0 @@
-package writefreely
-
-// fakeAPInstances contains a list of sites that we allow writers to mention
-// with the @handle@instance.tld syntax, plus the corresponding prefix to
-// insert between `https://instance.tld/` and `handle` (e.g.
-// https://medium.com/@handle)
-var fakeAPInstances = map[string]string{
-	"twitter.com": "",
-	"medium.com":  "@",
-}