dfeed.web.web: Add "subscribe" action on user profiles

Author: CyberShadow

site-defaults/web/static/css/dfeed.css

@@ -1747,6 +1747,11 @@ body.frame .post-gravatar {
 	margin-bottom: 0.5em;
 }
 
+.user-profile-actions {
+	margin-left: 0.35em;
+	margin-right: 0.35em;
+}
+
 .user-profile-stats {
 	margin-bottom: 1em;
 }

site-defaults/web/static/images/picture.png

@@ -61,7 +61,7 @@ import dfeed.web.web.view.search : discussionSearch;
 import dfeed.web.web.view.settings;
 import dfeed.web.web.view.subscription : discussionSubscriptionPosts, discussionSubscriptionUnsubscribe;
 import dfeed.web.web.view.thread : getPostAtThreadIndex, discussionThread, discussionFirstUnread;
-import dfeed.web.web.view.userprofile : discussionUserProfile;
+import dfeed.web.web.view.userprofile : discussionUserProfile, lookupAuthorByHash;
 import dfeed.web.web.view.widgets;
 
 import ae.net.http.common : HttpRequest, HttpResponse, HttpStatusCode;
@@ -74,7 +74,7 @@ import ae.utils.digest;
 import ae.utils.exception;
 import ae.utils.json : toJson;
 import ae.utils.meta : I;
-import ae.utils.regex : re;
+import ae.utils.regex : re, escapeRE;
 import ae.utils.text.html : encodeHtmlEntities;
 
 HttpRequest currentRequest;
@@ -548,6 +548,32 @@ HttpResponse handleRequest(HttpRequest request, HttpServerConnection conn)
 				breadcrumbs ~= `<a href="/user/` ~ encodeHtmlEntities(profileHash) ~ `">` ~ encodeHtmlEntities(author) ~ `</a>`;
 				break;
 			}
+			case "subscribe-user":
+			{
+				enforce(path.length > 1, _!"No user specified");
+				enforce(user.isLoggedIn(), _!"Please log in to do that");
+				string profileHash = pathX;
+				auto authorInfo = lookupAuthorByHash(profileHash);
+				enforce(authorInfo[0] !is null, _!"User not found");
+				string authorName = authorInfo[0];
+				string authorEmail = authorInfo[1];
+
+				// Create a content subscription with author name and email filters prefilled
+				// Use regex mode with escaped strings for exact matching
+				auto subscription = createSubscription(user.getName(), "content", [
+					"trigger-content-author-name-enabled" : "on",
+					"trigger-content-author-name-match-type" : "regex",
+					"trigger-content-author-name-case-sensitive" : "on",
+					"trigger-content-author-name-str" : "^" ~ authorName.escapeRE ~ "$",
+					"trigger-content-author-email-enabled" : "on",
+					"trigger-content-author-email-match-type" : "regex",
+					"trigger-content-author-email-case-sensitive" : "on",
+					"trigger-content-author-email-str" : "^" ~ authorEmail.escapeRE ~ "$",
+				]);
+				title = _!"Subscribe to user";
+				discussionSubscriptionEdit(subscription);
+				break;
+			}
 			case "delete":
 			case "dodelete":
 				return response.redirect("/moderate/" ~ path[1..$].join("/"));

src/dfeed/web/web/request.d

@@ -33,6 +33,7 @@ import dfeed.web.web.page : html, NotFoundException;
 import dfeed.web.web.part.gravatar : getGravatarHash, putGravatar;
 import dfeed.web.web.part.profile : getProfileHash, profileUrl;
 import dfeed.web.web.part.strings : summarizeTime, formatShortTime;
+import dfeed.web.web.statics : staticPath;
 import dfeed.web.web.user : user;
 
 /// Look up author name and email from a profile hash.
@@ -102,6 +103,16 @@ void discussionUserProfile(string profileHash, out string title, out string auth
 	html.put(`<div class="user-profile-avatar">`);
 	putGravatar(gravatarHash, author, gravatarUrl,
 		_!`%s's Gravatar profile`.format(author), null, 128);
+	html.put(`<div class="user-profile-actions">`);
+	html.put(`<a class="actionlink picturelink" href="`, gravatarUrl, `" title="`, _!`View Gravatar profile`, `">`);
+	html.put(`<img src="`, staticPath("/images/picture.png"), `">`, _!`Gravatar profile`, `</a>`);
+	if (user.isLoggedIn())
+	{
+		html.put(` `);
+		html.put(`<a class="actionlink subscribelink" href="/subscribe-user/`, profileHash, `" title="`, _!`Subscribe to this user's posts`, `">`);
+		html.put(`<img src="`, staticPath("/images/star.png"), `">`, _!`Subscribe`, `</a>`);
+	}
+	html.put(`</div>`);
 	html.put(`</div>`);
 
 	// Name and basic info
@@ -145,8 +156,6 @@ void discussionUserProfile(string profileHash, out string title, out string auth
 
 	html.put(`</table>`);
 
-	html.put(`<p><a href="`, gravatarUrl, `">`, _!`Gravatar profile`, `</a></p>`);
-
 	html.put(`</div>`); // user-profile-info
 	html.put(`</div>`); // user-profile-header