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b39d47995d
Moves hash_util.by_stream_uri and hash_util.by_stream_topic_uri to internal_url so they can be used by external codebases. Due to these functions being called in many places in the web codebase, wrappers for both functions are left in hash_util in order to keep these calls simple. Also adds test for explicitly testing each function.
54 lines
1.7 KiB
JavaScript
54 lines
1.7 KiB
JavaScript
const hashReplacements = new Map([
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["%", "."],
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["(", ".28"],
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[")", ".29"],
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[".", ".2E"],
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]);
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// Some browsers zealously URI-decode the contents of
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// window.location.hash. So we hide our URI-encoding
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// by replacing % with . (like MediaWiki).
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export function encodeHashComponent(str) {
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return encodeURIComponent(str).replace(/[%().]/g, (matched) => hashReplacements.get(matched));
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}
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export function decodeHashComponent(str) {
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// This fails for URLs containing
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// foo.foo or foo%foo due to our fault in special handling
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// of such characters when encoding. This can also,
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// fail independent of our fault.
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// Here we let the calling code handle the exception.
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return decodeURIComponent(str.replace(/\./g, "%"));
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}
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export function stream_id_to_slug(stream_id, maybe_get_stream_name) {
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let name = maybe_get_stream_name(stream_id) || "unknown";
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// The name part of the URL doesn't really matter, so we try to
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// make it pretty.
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name = name.replaceAll(" ", "-");
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return stream_id + "-" + name;
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}
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export function encode_stream_id(stream_id, maybe_get_stream_name) {
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// stream_id_to_slug appends the stream name, but it does not do the
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// URI encoding piece.
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const slug = stream_id_to_slug(stream_id, maybe_get_stream_name);
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return encodeHashComponent(slug);
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}
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export function by_stream_uri(stream_id, maybe_get_stream_name) {
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return "#narrow/stream/" + encode_stream_id(stream_id, maybe_get_stream_name);
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}
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export function by_stream_topic_uri(stream_id, topic, maybe_get_stream_name) {
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return (
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"#narrow/stream/" +
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encode_stream_id(stream_id, maybe_get_stream_name) +
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"/topic/" +
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encodeHashComponent(topic)
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);
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}
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