-Assume you are given a U·R·L to a status collection, like `/statuses`,
- `/YYYY-MM`, or `/topics/my_topic`.
-Make a `HEAD` request to this U·R·L.
-If there is a `Link` header with a `rel` of `meta` and a `type` of
- `application/ld+json`, make a `GET` request to that U·R·L instead.
-Otherwise, make a `GET` request to the U·R·L you were given.
-
-Assuming the U·R·L you were given was valid, you will receive a
- Json‐L·D response with a `@type` which is either an
- `OrderedCollection` or an `OrderedCollectionPage`.
-One of the following will be true :—
-
- + The response is an `OrderedCollectionPage`.
- Its `items` will be an array of statuses, and the `prev` and
- `next` properties will give U·R·Ls for previous and next
- pages of statuses (if any exist).
-
- + The response is an `OrderedCollection` with `first` and
- `current` properties.
- These properies give the U·R·Ls for the first and latest pages
- of statuses, which you can fetch and process as above.
-
- + Otherwise, the `items` property will be an array of every
- status in the collection.
-
- > If you receive a `Collection` instead of an `OrderedCollection`,
- > you are probably looking at a topics listing.
- > You will need to choose a topic from the `items` and then fetch it
- > to receive the list of statuses.
+Assume you are given a U·R·L `resource_url` which you think points to
+ some kind of Status.git resource.
+Start by resolving it as follows :—
+
+01. Make a `HEAD` request to `resource_url`.
+
+02. If there is a `Link` header with a `rel` of `meta` and a `type` of
+ `application/ld+json`, set `resource_url` to the URL provided in
+ that header and restart these steps from step 1.
+
+03. Make a `GET` request to `resource_url` and let `response` be the
+ response.
+
+04. Set `document` as follows :—
+
+ 01. If the `Content-Type` header of `response` has a type of `text`
+ and subtype of `html`, let `document` be the result of
+ processing the body of `response` into a D·O·M tree as an
+ H·T·M·L document .
+ It is an error if this process fails.
+
+ 02. If the `Content-Type` header of `response` has a type of
+ `application` and a subtype which is `xml` or which ends in
+ `+xml`, let `document` be the result of processing the body
+ of `response` into a D·O·M tree as an X·M·L document .
+ It is an error if this process fails.
+
+ 03. Otherwise, let `document` be null.
+
+05. If `document` is not null :—
+
+ 01. If there is a `<link>` element in either the H·T·M·L namespace
+ or the Atom namespace in `document` with a `rel` of `meta`
+ and a `type` of `application/ld+json`, set `resource_url` to
+ the `href` of that `<link>` element and restart these steps
+ from step 1.
+ If multiple such elements exist, choose the first one.
+
+ 02. Otherwise, it is an error.
+
+06. If the body of `response` is not a Json document, it is an error.
+
+Assuming the U·R·L you were given was valid, you will end this
+ algorithm with a Json‐L·D response, and you can use the `@type`
+ attribute to determine the response type.
+`@type` will be either a string or an array.
+
+ + If the `@type` is or contains `Forum`, the resource is a collection
+ of topics.
+
+ + If the `@type` is or contains `Thread`, the resource is a
+ collection of statuses.
+
+The items in the collection may be determined through one of the
+ following methods :—
+
+ + If the `@type` is or contains `OrderedCollectionPage`, then its
+ `items` will be an array of resources.
+ This is a partial collection, and the `prev` and `next` properties
+ can be used to access further items from the parent collection
+ (indicated by `partOf`).
+
+ + If the `@type` is or contains `OrderedCollection`, and the resource
+ has `first` and `current` properties, then the `items` property
+ will not be present.
+ `first` and `current` can be accessed to provide
+ `OrderedCollectionPage`s listing the items of the collection as
+ above.
+
+ + Otherwise, the `items` property will contain every item in the
+ collection.
Lady’s Gitweb / x_status_git / commitdiff