function() {
var User = require("./user").User;
if (!_(props).getPath(["links", "self", "href"])) {
props._uuid = IDMaker.makeID();
if (!props.id) {
props.id = ActivityObject.makeURI(type, props._uuid);
}
if (!props.published) {
props.published = now;
}
if (!props.updated) {
props.updated = now;
}
if (!_.has(props, "links")) {
props.links = {};
}
props.links.self = {
href: URLMaker.makeURL("api/" + type + "/" + props._uuid)
};
_.each(["likes", "replies", "shares"], function(feed) {
if (!_.has(props, feed)) {
props[feed] = {
url: URLMaker.makeURL("api/" + type + "/" + props._uuid + "/" + feed)
};
}
});
if (!_.has(props, "url") &&
_.has(props, "author") &&
_.isObject(props.author)) {
if (_.has(props.author, "preferredUsername") &&
_.isString(props.author.preferredUsername)) {
props.url = URLMaker.makeURL([props.author.preferredUsername, type, props._uuid].join("/"));
this(null, null);
} else {
User.fromPerson(props.author.id, this);
}
} else {
this(null, null);
}
} else {
_.each(["likes", "replies", "shares"], function(feed) {
// For non-new stuff, clear out volatile data
ActivityObject.trimCollection(props, feed);
});
this(null, null);
}
},
ActivityObject.prototype.toString = function() {
var obj = this;
if (!_.has(obj, "objectType")) {
return "[activityobject]";
} else if (!_.has(obj, "id")) {
return "["+obj.objectType+"]";
} else {
return "["+obj.objectType+" "+obj.id+"]";
}
};
ActivityObject.prototype.isFollowable = function() {
var obj = this,
followableTypes = [ActivityObject.PERSON];
if (_.contains(followableTypes, obj.objectType)) {
return true;
} else if (_.has(obj, "links") &&
_.has(obj.links, "activity-outbox")) {
return true;
} else {
return false;
}
};
_.each(["likes", "replies", "shares"], function(feed) {
if (!_.has(props, feed)) {
props[feed] = {
url: URLMaker.makeURL("api/" + type + "/" + props._uuid + "/" + feed)
};
}
});
_.each(dateprops, function(dateprop) {
// XXX: validate the date
if (_.has(props, dateprop)) {
if (!_.isString(props[dateprop])) {
throw new TypeError(dateprop + " property is not a string");
}
}
});
_.each(oprops, function(name) {
if (_.has(props, name)) {
if (!_.isObject(props[name])) {
throw new TypeError(name + " property is not an activity object");
} else {
ActivityObject.validate(props[name]);
}
}
});
_.each(uriarrayprops, function(uriarrayprop) {
if (_.has(props, uriarrayprop)) {
if (!_.isArray(props[uriarrayprop])) {
throw new TypeError(uriarrayprop + " is not an array");
}
if (_.some(props[uriarrayprop], function(str) { return !_.isString(str); })) {
throw new TypeError(uriarrayprop + " member is not a string");
}
// XXX: validate that duplicates are URIs
}
});
ActivityObject.beforeCreate = function(props, callback) {
var type = this.type;
if (!_.has(props, "objectType")) {
props.objectType = type;
}
var now = Stamper.stamp();
// Keep a timestamp for when we created something
props._created = now;
Step(
function() {
var User = require("./user").User;
if (!_(props).getPath(["links", "self", "href"])) {
props._uuid = IDMaker.makeID();
if (props.id) {
props._foreign_id = true;
} else {
props.id = ActivityObject.makeURI(type, props._uuid);
}
if (!props.published) {
props.published = now;
}
if (!props.updated) {
props.updated = now;
}
if (!_.has(props, "links")) {
props.links = {};
}
if (props._foreign_id) {
props.links.self = {
href: URLMaker.makeURL("api/" + type, {id: props.id})
};
} else {
props.links.self = {
href: URLMaker.makeURL("api/" + type + "/" + props._uuid)
};
}
_.each(["likes", "replies", "shares"], function(feed) {
if (!_.has(props, feed)) {
if (props._foreign_id) {
props[feed] = {
url: URLMaker.makeURL("api/" + type + "/" + feed, {id: props.id})
};
} else {
props[feed] = {
url: URLMaker.makeURL("api/" + type + "/" + props._uuid + "/" + feed)
};
}
}
});
if (!_.has(props, "url") &&
_.has(props, "author") &&
_.isObject(props.author)) {
if (_.has(props.author, "preferredUsername") &&
_.isString(props.author.preferredUsername)) {
props.url = URLMaker.makeURL([props.author.preferredUsername, type, props._uuid].join("/"));
this(null, null);
} else {
User.fromPerson(props.author.id, this);
}
} else {
this(null, null);
}
} else {
_.each(["likes", "replies", "shares"], function(feed) {
// For non-new stuff, clear out volatile data
ActivityObject.trimCollection(props, feed);
});
this(null, null);
}
},
function(err, user) {
if (err) throw err;
if (user) {
props.url = URLMaker.makeURL([user.nickname, type, props._uuid].join("/"));
}
// Save the author by reference; don't save the whole thing
ActivityObject.compressProperty(props, "author", this.parallel());
ActivityObject.compressProperty(props, "inReplyTo", this.parallel());
},
function(err) {
if (err) throw err;
ActivityObject.validate(props);
this(null);
},
function(err) {
if (err) {
callback(err, null);
} else {
callback(null, props);
}
}
);
};
_.each(np, function(nprop) {
if (_.has(props, nprop) && !_.isNumber(props[nprop])) {
throw new TypeError(nprop + " property of media link is not a number");
}
});
_.each(htmlprops, function(name) {
// XXX: validate HTML
if (_.has(props, name) && !_.isString(props[name])) {
throw new TypeError(name + " property is not a string");
}
});
ActivityObject.validate = function(props) {
var dateprops = ["published", "updated"],
uriarrayprops = ["downstreamDuplicates", "upstreamDuplicates"],
htmlprops = ["content", "summary"],
oprops = ["inReplyTo", "author"];
// XXX: validate that id is a really-truly URI
if (!_.isString(props.id)) {
throw new TypeError("no id in activity object");
}
// XXX: validate that objectType is an URI or in our whitelist
if (!_.isString(props.objectType)) {
throw new TypeError("no objectType in activity object");
}
// XXX: validate that displayName is not HTML
if (_.has(props, "displayName") && !_.isString(props.displayName)) {
throw new TypeError("displayName property is not a string");
}
// XXX: validate that url is an URL
if (_.has(props, "url") && !_.isString(props.url)) {
throw new TypeError("url property is not a string");
}
_.each(oprops, function(name) {
if (_.has(props, name)) {
if (!_.isObject(props[name])) {
throw new TypeError(name + " property is not an activity object");
} else {
ActivityObject.validate(props[name]);
}
}
});
// Validate attachments
if (_.has(props, "attachments")) {
if (!_.isArray(props.attachments)) {
throw new TypeError("attachments is not an array");
}
_.each(props.attachments, function(attachment) {
if (!_.isObject(attachment)) {
throw new TypeError("attachment is not an object");
}
ActivityObject.validate(attachment);
});
}
_.each(uriarrayprops, function(uriarrayprop) {
if (_.has(props, uriarrayprop)) {
if (!_.isArray(props[uriarrayprop])) {
throw new TypeError(uriarrayprop + " is not an array");
}
if (_.some(props[uriarrayprop], function(str) { return !_.isString(str); })) {
throw new TypeError(uriarrayprop + " member is not a string");
}
// XXX: validate that duplicates are URIs
}
});
if (_.has(props, "image")) {
if (!_.isObject(props.image)) {
throw new TypeError("image property is not an object");
}
ActivityObject.validateMediaLink(props.image);
}
_.each(dateprops, function(dateprop) {
// XXX: validate the date
if (_.has(props, dateprop)) {
if (!_.isString(props[dateprop])) {
throw new TypeError(dateprop + " property is not a string");
}
}
});
_.each(htmlprops, function(name) {
// XXX: validate HTML
if (_.has(props, name) && !_.isString(props[name])) {
throw new TypeError(name + " property is not a string");
}
});
return;
};