407 lines
15 KiB
Go
407 lines
15 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package uris
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import (
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"fmt"
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"net/url"
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"strings"
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"github.com/superseriousbusiness/gotosocial/internal/config"
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"github.com/superseriousbusiness/gotosocial/internal/regexes"
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)
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const (
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UsersPath = "users" // UsersPath is for serving users info
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StatusesPath = "statuses" // StatusesPath is for serving statuses
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InboxPath = "inbox" // InboxPath represents the activitypub inbox location
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OutboxPath = "outbox" // OutboxPath represents the activitypub outbox location
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FollowersPath = "followers" // FollowersPath represents the activitypub followers location
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FollowingPath = "following" // FollowingPath represents the activitypub following location
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LikedPath = "liked" // LikedPath represents the activitypub liked location
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CollectionsPath = "collections" // CollectionsPath represents the activitypub collections location
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FeaturedPath = "featured" // FeaturedPath represents the activitypub featured location
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PublicKeyPath = "main-key" // PublicKeyPath is for serving an account's public key
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FollowPath = "follow" // FollowPath used to generate the URI for an individual follow or follow request
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UpdatePath = "updates" // UpdatePath is used to generate the URI for an account update
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BlocksPath = "blocks" // BlocksPath is used to generate the URI for a block
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ReportsPath = "reports" // ReportsPath is used to generate the URI for a report/flag
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ConfirmEmailPath = "confirm_email" // ConfirmEmailPath is used to generate the URI for an email confirmation link
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FileserverPath = "fileserver" // FileserverPath is a path component for serving attachments + media
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EmojiPath = "emoji" // EmojiPath represents the activitypub emoji location
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TagsPath = "tags" // TagsPath represents the activitypub tags location
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)
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// UserURIs contains a bunch of UserURIs and URLs for a user, host, account, etc.
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type UserURIs struct {
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// The web URL of the instance host, eg https://example.org
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HostURL string
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// The web URL of the user, eg., https://example.org/@example_user
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UserURL string
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// The web URL for statuses of this user, eg., https://example.org/@example_user/statuses
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StatusesURL string
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// The activitypub URI of this user, eg., https://example.org/users/example_user
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UserURI string
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// The activitypub URI for this user's statuses, eg., https://example.org/users/example_user/statuses
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StatusesURI string
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// The activitypub URI for this user's activitypub inbox, eg., https://example.org/users/example_user/inbox
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InboxURI string
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// The activitypub URI for this user's activitypub outbox, eg., https://example.org/users/example_user/outbox
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OutboxURI string
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// The activitypub URI for this user's followers, eg., https://example.org/users/example_user/followers
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FollowersURI string
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// The activitypub URI for this user's following, eg., https://example.org/users/example_user/following
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FollowingURI string
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// The activitypub URI for this user's liked posts eg., https://example.org/users/example_user/liked
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LikedURI string
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// The activitypub URI for this user's featured collections, eg., https://example.org/users/example_user/collections/featured
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FeaturedCollectionURI string
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// The URI for this user's public key, eg., https://example.org/users/example_user/publickey
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PublicKeyURI string
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}
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// GenerateURIForFollow returns the AP URI for a new follow -- something like:
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// https://example.org/users/whatever_user/follow/01F7XTH1QGBAPMGF49WJZ91XGC
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func GenerateURIForFollow(username string, thisFollowID string) string {
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protocol := config.GetProtocol()
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host := config.GetHost()
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return fmt.Sprintf("%s://%s/%s/%s/%s/%s", protocol, host, UsersPath, username, FollowPath, thisFollowID)
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}
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// GenerateURIForLike returns the AP URI for a new like/fave -- something like:
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// https://example.org/users/whatever_user/liked/01F7XTH1QGBAPMGF49WJZ91XGC
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func GenerateURIForLike(username string, thisFavedID string) string {
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protocol := config.GetProtocol()
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host := config.GetHost()
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return fmt.Sprintf("%s://%s/%s/%s/%s/%s", protocol, host, UsersPath, username, LikedPath, thisFavedID)
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}
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// GenerateURIForUpdate returns the AP URI for a new update activity -- something like:
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// https://example.org/users/whatever_user#updates/01F7XTH1QGBAPMGF49WJZ91XGC
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func GenerateURIForUpdate(username string, thisUpdateID string) string {
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protocol := config.GetProtocol()
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host := config.GetHost()
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return fmt.Sprintf("%s://%s/%s/%s#%s/%s", protocol, host, UsersPath, username, UpdatePath, thisUpdateID)
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}
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// GenerateURIForBlock returns the AP URI for a new block activity -- something like:
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// https://example.org/users/whatever_user/blocks/01F7XTH1QGBAPMGF49WJZ91XGC
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func GenerateURIForBlock(username string, thisBlockID string) string {
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protocol := config.GetProtocol()
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host := config.GetHost()
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return fmt.Sprintf("%s://%s/%s/%s/%s/%s", protocol, host, UsersPath, username, BlocksPath, thisBlockID)
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}
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// GenerateURIForReport returns the API URI for a new Flag activity -- something like:
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// https://example.org/reports/01GP3AWY4CRDVRNZKW0TEAMB5R
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//
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// This path specifically doesn't contain any info about the user who did the reporting,
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// to protect their privacy.
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func GenerateURIForReport(thisReportID string) string {
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protocol := config.GetProtocol()
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host := config.GetHost()
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return fmt.Sprintf("%s://%s/%s/%s", protocol, host, ReportsPath, thisReportID)
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}
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// GenerateURIForEmailConfirm returns a link for email confirmation -- something like:
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// https://example.org/confirm_email?token=490e337c-0162-454f-ac48-4b22bb92a205
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func GenerateURIForEmailConfirm(token string) string {
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protocol := config.GetProtocol()
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host := config.GetHost()
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return fmt.Sprintf("%s://%s/%s?token=%s", protocol, host, ConfirmEmailPath, token)
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}
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// GenerateURIsForAccount throws together a bunch of URIs for the given username, with the given protocol and host.
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func GenerateURIsForAccount(username string) *UserURIs {
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protocol := config.GetProtocol()
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host := config.GetHost()
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// The below URLs are used for serving web requests
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hostURL := fmt.Sprintf("%s://%s", protocol, host)
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userURL := fmt.Sprintf("%s/@%s", hostURL, username)
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statusesURL := fmt.Sprintf("%s/%s", userURL, StatusesPath)
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// the below URIs are used in ActivityPub and Webfinger
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userURI := fmt.Sprintf("%s/%s/%s", hostURL, UsersPath, username)
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statusesURI := fmt.Sprintf("%s/%s", userURI, StatusesPath)
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inboxURI := fmt.Sprintf("%s/%s", userURI, InboxPath)
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outboxURI := fmt.Sprintf("%s/%s", userURI, OutboxPath)
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followersURI := fmt.Sprintf("%s/%s", userURI, FollowersPath)
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followingURI := fmt.Sprintf("%s/%s", userURI, FollowingPath)
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likedURI := fmt.Sprintf("%s/%s", userURI, LikedPath)
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collectionURI := fmt.Sprintf("%s/%s/%s", userURI, CollectionsPath, FeaturedPath)
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publicKeyURI := fmt.Sprintf("%s/%s", userURI, PublicKeyPath)
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return &UserURIs{
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HostURL: hostURL,
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UserURL: userURL,
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StatusesURL: statusesURL,
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UserURI: userURI,
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StatusesURI: statusesURI,
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InboxURI: inboxURI,
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OutboxURI: outboxURI,
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FollowersURI: followersURI,
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FollowingURI: followingURI,
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LikedURI: likedURI,
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FeaturedCollectionURI: collectionURI,
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PublicKeyURI: publicKeyURI,
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}
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}
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// URIForAttachment generates a URI for
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// an attachment/emoji/header etc.
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//
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// Will produce something like:
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//
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// "https://example.org/fileserver/01FPST95B8FC3HG3AGCDKPQNQ2/attachment/original/01FPST9QK4V5XWS3F9Z4F2G1X7.gif"
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func URIForAttachment(
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accountID string,
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mediaType string,
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mediaSize string,
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mediaID string,
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extension string,
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) string {
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const format = "%s://%s/%s/%s/%s/%s/%s.%s"
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return fmt.Sprintf(
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format,
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config.GetProtocol(),
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config.GetHost(),
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FileserverPath,
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accountID,
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mediaType,
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mediaSize,
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mediaID,
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extension,
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)
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}
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// StoragePathForAttachment generates a storage
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// path for an attachment/emoji/header etc.
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//
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// Will produce something like:
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//
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// "01FPST95B8FC3HG3AGCDKPQNQ2/attachment/original/01FPST9QK4V5XWS3F9Z4F2G1X7.gif"
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func StoragePathForAttachment(
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accountID string,
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mediaType string,
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mediaSize string,
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mediaID string,
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extension string,
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) string {
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const format = "%s/%s/%s/%s.%s"
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return fmt.Sprintf(
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format,
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accountID,
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mediaType,
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mediaSize,
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mediaID,
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extension,
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)
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}
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// URIForEmoji generates an
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// ActivityPub URI for an emoji.
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//
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// Will produce something like:
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//
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// "https://example.org/emoji/01FPST9QK4V5XWS3F9Z4F2G1X7"
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func URIForEmoji(emojiID string) string {
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const format = "%s://%s/%s/%s"
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return fmt.Sprintf(
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format,
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config.GetProtocol(),
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config.GetHost(),
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EmojiPath,
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emojiID,
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)
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}
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// URIForTag generates an activitypub uri for a tag.
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func URIForTag(name string) string {
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protocol := config.GetProtocol()
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host := config.GetHost()
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return fmt.Sprintf("%s://%s/%s/%s", protocol, host, TagsPath, strings.ToLower(name))
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}
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// IsUserPath returns true if the given URL path corresponds to eg /users/example_username
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func IsUserPath(id *url.URL) bool {
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return regexes.UserPath.MatchString(id.Path)
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}
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// IsInboxPath returns true if the given URL path corresponds to eg /users/example_username/inbox
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func IsInboxPath(id *url.URL) bool {
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return regexes.InboxPath.MatchString(id.Path)
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}
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// IsOutboxPath returns true if the given URL path corresponds to eg /users/example_username/outbox
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func IsOutboxPath(id *url.URL) bool {
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return regexes.OutboxPath.MatchString(id.Path)
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}
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// IsFollowersPath returns true if the given URL path corresponds to eg /users/example_username/followers
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func IsFollowersPath(id *url.URL) bool {
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return regexes.FollowersPath.MatchString(id.Path)
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}
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// IsFollowingPath returns true if the given URL path corresponds to eg /users/example_username/following
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func IsFollowingPath(id *url.URL) bool {
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return regexes.FollowingPath.MatchString(id.Path)
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}
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// IsFollowPath returns true if the given URL path corresponds to eg /users/example_username/follow/SOME_ULID_OF_A_FOLLOW
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func IsFollowPath(id *url.URL) bool {
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return regexes.FollowPath.MatchString(id.Path)
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}
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// IsLikedPath returns true if the given URL path corresponds to eg /users/example_username/liked
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func IsLikedPath(id *url.URL) bool {
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return regexes.LikedPath.MatchString(id.Path)
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}
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// IsLikePath returns true if the given URL path corresponds to eg /users/example_username/liked/SOME_ULID_OF_A_STATUS
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func IsLikePath(id *url.URL) bool {
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return regexes.LikePath.MatchString(id.Path)
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}
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// IsStatusesPath returns true if the given URL path corresponds to eg /users/example_username/statuses/SOME_ULID_OF_A_STATUS
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func IsStatusesPath(id *url.URL) bool {
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return regexes.StatusesPath.MatchString(id.Path)
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}
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// IsPublicKeyPath returns true if the given URL path corresponds to eg /users/example_username/main-key
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func IsPublicKeyPath(id *url.URL) bool {
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return regexes.PublicKeyPath.MatchString(id.Path)
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}
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// IsBlockPath returns true if the given URL path corresponds to eg /users/example_username/blocks/SOME_ULID_OF_A_BLOCK
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func IsBlockPath(id *url.URL) bool {
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return regexes.BlockPath.MatchString(id.Path)
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}
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// IsReportPath returns true if the given URL path corresponds to eg /reports/SOME_ULID_OF_A_REPORT
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func IsReportPath(id *url.URL) bool {
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return regexes.ReportPath.MatchString(id.Path)
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}
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// ParseStatusesPath returns the username and ulid from a path such as /users/example_username/statuses/SOME_ULID_OF_A_STATUS
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func ParseStatusesPath(id *url.URL) (username string, ulid string, err error) {
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matches := regexes.StatusesPath.FindStringSubmatch(id.Path)
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if len(matches) != 3 {
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err = fmt.Errorf("expected 3 matches but matches length was %d", len(matches))
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return
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}
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username = matches[1]
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ulid = matches[2]
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return
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}
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// ParseUserPath returns the username from a path such as /users/example_username
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func ParseUserPath(id *url.URL) (username string, err error) {
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matches := regexes.UserPath.FindStringSubmatch(id.Path)
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if len(matches) != 2 {
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err = fmt.Errorf("expected 2 matches but matches length was %d", len(matches))
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return
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}
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username = matches[1]
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return
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}
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// ParseInboxPath returns the username from a path such as /users/example_username/inbox
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func ParseInboxPath(id *url.URL) (username string, err error) {
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matches := regexes.InboxPath.FindStringSubmatch(id.Path)
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if len(matches) != 2 {
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err = fmt.Errorf("expected 2 matches but matches length was %d", len(matches))
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return
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}
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username = matches[1]
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return
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}
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// ParseOutboxPath returns the username from a path such as /users/example_username/outbox
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func ParseOutboxPath(id *url.URL) (username string, err error) {
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matches := regexes.OutboxPath.FindStringSubmatch(id.Path)
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if len(matches) != 2 {
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err = fmt.Errorf("expected 2 matches but matches length was %d", len(matches))
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return
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}
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username = matches[1]
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return
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}
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// ParseFollowersPath returns the username from a path such as /users/example_username/followers
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func ParseFollowersPath(id *url.URL) (username string, err error) {
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matches := regexes.FollowersPath.FindStringSubmatch(id.Path)
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if len(matches) != 2 {
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err = fmt.Errorf("expected 2 matches but matches length was %d", len(matches))
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return
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}
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username = matches[1]
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return
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}
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// ParseFollowingPath returns the username from a path such as /users/example_username/following
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func ParseFollowingPath(id *url.URL) (username string, err error) {
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matches := regexes.FollowingPath.FindStringSubmatch(id.Path)
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if len(matches) != 2 {
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err = fmt.Errorf("expected 2 matches but matches length was %d", len(matches))
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return
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}
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username = matches[1]
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return
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}
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// ParseLikedPath returns the username and ulid from a path such as /users/example_username/liked/SOME_ULID_OF_A_STATUS
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func ParseLikedPath(id *url.URL) (username string, ulid string, err error) {
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matches := regexes.LikePath.FindStringSubmatch(id.Path)
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if len(matches) != 3 {
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err = fmt.Errorf("expected 3 matches but matches length was %d", len(matches))
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return
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}
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username = matches[1]
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ulid = matches[2]
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return
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}
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// ParseBlockPath returns the username and ulid from a path such as /users/example_username/blocks/SOME_ULID_OF_A_BLOCK
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func ParseBlockPath(id *url.URL) (username string, ulid string, err error) {
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matches := regexes.BlockPath.FindStringSubmatch(id.Path)
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if len(matches) != 3 {
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err = fmt.Errorf("expected 3 matches but matches length was %d", len(matches))
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return
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}
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username = matches[1]
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ulid = matches[2]
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return
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}
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// ParseReportPath returns the ulid from a path such as /reports/SOME_ULID_OF_A_REPORT
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func ParseReportPath(id *url.URL) (ulid string, err error) {
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matches := regexes.ReportPath.FindStringSubmatch(id.Path)
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if len(matches) != 2 {
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err = fmt.Errorf("expected 2 matches but matches length was %d", len(matches))
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return
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}
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ulid = matches[1]
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return
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}
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