WIP. Rethinking things. See the README
This commit is contained in:
Ben Visness
parent
f8e7779b7d
commit
8c8fdcce3f
32
src/db/db.go
32
src/db/db.go
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@ -438,3 +438,35 @@ func QueryBool(ctx context.Context, conn ConnOrTx, query string, args ...interfa
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return false, oops.New(nil, "QueryBool got a non-bool result: %v", result)
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}
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}
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// Begins a transaction, runs the provided function, and then commits the
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// transaction. If the provided function returns an error, the transaction will
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// be rolled back, and the original error will be returned.
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func DoWithTransaction(ctx context.Context, conn ConnOrTx, f func(tx pgx.Tx) error) error {
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tx, err := conn.Begin(ctx)
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if err != nil {
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return oops.New(err, "failed to begin transaction")
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}
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defer func() {
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err := tx.Rollback(ctx)
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if err != nil {
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// TODO: Maybe in the future we could have a "multi-error" so we
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// can actually return this error instead of having to log it.
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logging.ExtractLogger(ctx).Error().
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Err(err).
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Msg("failed to roll back transaction")
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}
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}()
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err = f(tx)
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if err != nil {
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return err
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}
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err = tx.Commit(ctx)
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if err != nil {
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return oops.New(err, "failed to commit transaction")
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}
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return nil
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}
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@ -0,0 +1,168 @@
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# Discord is crazy
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This document describes the entire process of persisting Discord messages and handling:
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- showcase messages
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- library messages
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- snippets
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- backfills
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- admin commands
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- who even knows what else
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If you want to just hop in and make a quick change to the Discord logic, don't. Not without reading this first, and in particular not without going through the user stories.
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## Constraints and design guidelines
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We must never save message content for anyone without a linked Discord account.
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We always have to respect rate limits, heartbeats, other gateway nuances.
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Actions on Discord should never affect the website if the Discord account is not linked to an HMN profile.
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Nothing should be added to a user's HMN profile without explicit user action. For example, linking your account should not result in snippets being automatically created from old #project-showcase posts.
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We shouldn't assume that just because we have a message (or its contents) stored, we want to create a snippet from it. Sometimes messages could be saved for other reasons.
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## All the logic
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On new/updated message:
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- if in a showcase channel and it doesn't fit the format, delete and return
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- if in a library channel and it doesn't fit the format, delete and return
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- if we care about the content of this message (see below):
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- persist mirror of message data (incl. content if allowed)
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- if persisting content, clean up message markdown
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- if user has a linked Discord account:
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- if this message is snippet-able (see below):
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- if snippet exists (in any channel):
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- update snippet
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- if no snippet exists:
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- check conditions for a new snippet:
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- the flag for snippet creation is set
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- any of the following is true:
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- in "showcase" channel, and the user has the setting enabled
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- an admin wants a snippet here
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- we have message content
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- SnippetCreated is false on the message
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- if conditions are met, create snippet
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- if this message is not snippet-able (see below):
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- delete any existing snippets that are connected to Discord (huzzah for edge cases)
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On deleted message:
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- delete snippets, if the following conditions are true:
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- snippet is connected to Discord
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- the author has a Discord account linked
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- the author chooses not to keep captured snippets on Discord deletes (profile setting)
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- delete mirror of message data
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On Discord account unlink:
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- DO NOT disconnect snippets from Discord.
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- There's no reason to.
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We care about the content of the message if:
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- we already have content for this message, or
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- it is in a showcase channel or whatever, or
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- an admin said so (CLI command)
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A message is snippet-able if:
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- It contains enough information to make a snippet. Namely:
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- it has media
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- Things that DO NOT affect snippetability:
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- whether a Discord account is linked
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- the user's settings for automatic snippet creation
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- other permissions or whatever
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### Things we do
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These actions all fall into one of the two flows above - the create/update flow, or the delete flow. Some may require flags to modify the main flow behavior slightly.
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Stuff for the create/update flow:
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- receive message creates/updates in real time
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- general backfill (1 hour) (exactly the same behavior as real-time)
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- new user backfill (5 seconds) (message content only, no snippets)
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- make snippets from #project-showcase posts (exactly the same behavior as real-time)
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- admin scrapechannel (fetch messages and content in arbitrary channels, no snippets)
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- admin makesnippet
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Stuff for the delete flow:
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- receive message deletes in real time
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- IN THE FUTURE: delete messages in history backfill
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## ✨ :D user story time :D ✨
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Whenever touching the logic, consider all of these lovely edge cases!
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- bad showcase post
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- expected: post is immediately deleted
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- bad library post
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- expected: post is immediately deleted
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- good showcase post from an unlinked user
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- expected: lightweight message record is created, but no snippet is created
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- good showcase post, then the user unlinks their discord account
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- expected: the snippet remains on the user's profile
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- good showcase post, then the user unlinks their discord account, then edits the message
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- expected: the message edit has no effect on the snippet
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- good showcase post, then the user unlinks their discord account, then deletes the message
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- expected: the message delete has no effect on the snippet
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- good showcase post, then the user unlinks and re-links their discord account, then edits the showcase post
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- expected: the snippet remained connected to the discord message, and is updated
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- good showcase post, then the user unlinks their discord account and links a different one
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- expected: nothing happens to old snippets; new snippets get added as usual
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- good showcase post, then the user unlinks their discord account, then their discord account is linked to a different website profile
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- expected: snippets may be re-created on the new HMN profile
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- good showcase post, then the user unlinks their discord account, then we run a backfill on that specific message
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- expected: nothing happens because there is no discord account linked for that message
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- good showcase post gets edited to be bad
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- expected: the message and associated snippet are deleted
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- good library post gets edited to be bad
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- expected: the message is deleted
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- good showcase post gets edited and is still good
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- expected: the message record and associated snippet are updated
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- good library post gets edited and is still good
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- expected: nothing happens
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- Ryan posts like 50 things in #projects, and we want them to be on his profile
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- expected: an admin can run `admin makesnippet` on all the messages, and they will be added to Ryan's profile
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- Ryan edits his old posts in #projects
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- same as: someone edits their posts in #jam-showcase
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- expected: any associated snippets are updated, even though the edit was not in a showcase channel
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- Ryan edits an old post in #projects to no longer have a link
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- expected: the associated snippet is deleted, but the message persists.
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- Ryan edits an old post in #projects to no longer have a link, then edits it again to have a link again.
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- expected: the associated snippet is deleted, and not reinstated on the second edit. (oh well!)
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- an admin attempts to make a snippet for someone without a linked discord account
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- expected: nothing happens
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- an admin attempts to make a snippet for a message without media
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- expected: nothing happens
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- good showcase post is deleted
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- expected: any snippets are deleted, if the user wishes.
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- good showcase post, snippet is deleted from website, post is edited
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- expected: no new snippet is created
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- good showcase post, snippet is deleted from website, backfill runs
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- expected: no new snippet is created
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- good showcase post while the user has the showcase integration profile setting disabled, then they enable the showcase integration, then a backfill runs
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- expected: no new snippets are created for old showcase posts
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- good showcase post while the user has the integration disabled, then they enable the integration, then they explicitly create snippets from their showcase posts
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- expected: all user messages in showcase without snippets get snippets (subject to SnippetCreated)
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@ -548,14 +548,14 @@ func (bot *botInstance) processEventMsg(ctx context.Context, msg *GatewayMessage
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case "MESSAGE_CREATE":
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newMessage := *MessageFromMap(msg.Data, "")
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err := bot.messageCreateOrUpdate(ctx, &newMessage)
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err := bot.gatewayMessageCreateOrUpdate(ctx, &newMessage)
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if err != nil {
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return oops.New(err, "error on new message")
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}
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case "MESSAGE_UPDATE":
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newMessage := *MessageFromMap(msg.Data, "")
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err := bot.messageCreateOrUpdate(ctx, &newMessage)
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err := bot.gatewayMessageCreateOrUpdate(ctx, &newMessage)
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if err != nil {
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return oops.New(err, "error on updated message")
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}
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@ -585,76 +585,35 @@ func (bot *botInstance) processEventMsg(ctx context.Context, msg *GatewayMessage
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}
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// Only return an error if we want to restart the bot.
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func (bot *botInstance) messageCreateOrUpdate(ctx context.Context, msg *Message) error {
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if msg.OriginalHasFields("author") && msg.Author.ID == config.Config.Discord.BotUserID {
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// Don't process your own messages
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return nil
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}
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func (bot *botInstance) gatewayMessageCreateOrUpdate(ctx context.Context, msg *Message) error {
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log := logging.ExtractLogger(ctx).With().
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Str("msgID", msg.ID).
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Str("channelID", msg.ChannelID).
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Logger()
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ctx = logging.AttachLoggerToContext(&log, ctx)
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if msg.ChannelID == config.Config.Discord.ShowcaseChannelID {
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err := bot.processShowcaseMsg(ctx, msg)
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if err != nil {
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logging.ExtractLogger(ctx).Error().Err(err).Msg("failed to process showcase message")
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return nil
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}
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err := MessageCreatedOrUpdated(ctx, bot.dbConn, msg, 0)
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if errors.Is(err, context.Canceled) {
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log.Warn().Err(err).Msg("context canceled when handling new Discord message")
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return nil
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}
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if msg.ChannelID == config.Config.Discord.LibraryChannelID {
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err := bot.processLibraryMsg(ctx, msg)
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if err != nil {
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logging.ExtractLogger(ctx).Error().Err(err).Msg("failed to process library message")
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return nil
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}
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} else if err != nil {
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log.Error().Err(err).Msg("error while handling new Discord message")
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return nil
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}
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err := UpdateSnippetTagsIfAny(ctx, bot.dbConn, msg)
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if err != nil {
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logging.ExtractLogger(ctx).Warn().Err(err).Msg("failed to update tags for Discord snippet")
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}
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return nil
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}
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// TODO: Fold this into MessageDeleted and get rid of it
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func (bot *botInstance) messageDelete(ctx context.Context, msgDelete MessageDelete) {
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log := logging.ExtractLogger(ctx)
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tx, err := bot.dbConn.Begin(ctx)
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if err != nil {
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log.Error().Err(err).Msg("failed to start transaction")
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return
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}
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defer tx.Rollback(ctx)
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type deleteMessageQuery struct {
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Message models.DiscordMessage `db:"msg"`
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DiscordUser *models.DiscordUser `db:"duser"`
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HMNUser *models.User `db:"hmnuser"`
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SnippetID *int `db:"snippet.id"`
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}
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iresult, err := db.QueryOne(ctx, tx, deleteMessageQuery{},
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`
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SELECT $columns
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FROM
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handmade_discordmessage AS msg
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LEFT JOIN handmade_discorduser AS duser ON msg.user_id = duser.userid
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LEFT JOIN auth_user AS hmnuser ON duser.hmn_user_id = hmnuser.id
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LEFT JOIN handmade_snippet AS snippet ON snippet.discord_message_id = msg.id
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WHERE msg.id = $1 AND msg.channel_id = $2
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`,
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msgDelete.ID, msgDelete.ChannelID,
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)
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if errors.Is(err, db.NotFound) {
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return
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} else if err != nil {
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log.Error().Err(err).Msg("failed to check for message to delete")
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return
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}
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result := iresult.(*deleteMessageQuery)
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log := logging.ExtractLogger(ctx).With().
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Str("msgID", msgDelete.ID).
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Str("channelID", msgDelete.ChannelID).
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Logger()
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ctx = logging.AttachLoggerToContext(&log, ctx)
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log.Debug().Msg("deleting Discord message")
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_, err = tx.Exec(ctx,
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_, err := bot.dbConn.Exec(ctx,
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`
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DELETE FROM handmade_discordmessage
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WHERE id = $1 AND channel_id = $2
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@ -662,30 +621,8 @@ func (bot *botInstance) messageDelete(ctx context.Context, msgDelete MessageDele
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msgDelete.ID,
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msgDelete.ChannelID,
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)
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shouldDeleteSnippet := result.HMNUser != nil && result.HMNUser.DiscordDeleteSnippetOnMessageDelete
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if result.SnippetID != nil && shouldDeleteSnippet {
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log.Debug().
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Int("snippet_id", *result.SnippetID).
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Int("user_id", result.HMNUser.ID).
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Msg("deleting snippet from Discord message")
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_, err = tx.Exec(ctx,
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`
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DELETE FROM handmade_snippet
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WHERE id = $1
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`,
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result.SnippetID,
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)
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if err != nil {
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log.Error().Err(err).Msg("failed to delete snippet")
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return
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}
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}
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err = tx.Commit(ctx)
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if err != nil {
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log.Error().Err(err).Msg("failed to delete Discord message")
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return
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logging.ExtractLogger(ctx).Error().Err(err).Msg("failed to delete Discord message")
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}
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}
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@ -697,10 +634,10 @@ type MessageToSend struct {
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func SendMessages(
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ctx context.Context,
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conn *pgxpool.Pool,
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dbConn db.ConnOrTx,
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msgs ...MessageToSend,
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) error {
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tx, err := conn.Begin(ctx)
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tx, err := dbConn.Begin(ctx)
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if err != nil {
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return oops.New(err, "failed to start transaction")
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}
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|
|
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@ -193,7 +193,7 @@ func handleHistoryMessage(ctx context.Context, dbConn *pgxpool.Pool, msg *Messag
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break
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}
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newMsg, err := SaveMessageAndContents(ctx, tx, msg)
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newMsg, err := PersistMessage(ctx, tx, msg, true)
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if err != nil {
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return err
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}
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|
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@ -0,0 +1,210 @@
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package discord
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import (
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"context"
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"errors"
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"net/url"
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"strings"
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"git.handmade.network/hmn/hmn/src/config"
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"git.handmade.network/hmn/hmn/src/db"
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"git.handmade.network/hmn/hmn/src/models"
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"git.handmade.network/hmn/hmn/src/oops"
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"github.com/jackc/pgx/v4"
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)
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//
|
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// READ THE README!
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// (./README.md)
|
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//
|
||||
|
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type MessageCreatedOrUpdatedFlags int
|
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const (
|
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// If set, snippet creation will generally be enabled. We will attempt to
|
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// make snippets for new messages shared in #project-showcase or whatever.
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//
|
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// If not set, snippet updates and deletes will still occur where
|
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// appropriate. But new snippets will never be created.
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CreateSnippetsOnNewMessages MessageCreatedOrUpdatedFlags = 1 << iota
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// Create a snippet even if a message is not in the usual channels. This
|
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// will NOT, in fact, create a snippet if the message doesn't meet the
|
||||
// conditions - e.g. the message has media, and the user has a linked
|
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// Discord account.
|
||||
//
|
||||
// Still requires CreateSnippetsOnNewMessages to be set as well.
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ForceSnippet
|
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)
|
||||
|
||||
// Call whenever you have a new or updated Discord message, in any channel.
|
||||
// For example, when:
|
||||
// - You receive a message create/update event from the gateway
|
||||
// - You see a new message in a history backfill
|
||||
// - An admin command wants to make a snippet from some arbitrary message
|
||||
//
|
||||
// This implements the "on new/updated message" flow in the readme.
|
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func MessageCreatedOrUpdated(
|
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ctx context.Context,
|
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dbConn db.ConnOrTx,
|
||||
msg *Message,
|
||||
flags MessageCreatedOrUpdatedFlags,
|
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) error {
|
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return db.DoWithTransaction(ctx, dbConn, func(tx pgx.Tx) error {
|
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if msg.OriginalHasFields("author") && msg.Author.ID == config.Config.Discord.BotUserID {
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// Don't process messages from the bot
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return nil
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}
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didDelete, err := maybeDeleteShowcaseMsg(ctx, dbConn, msg)
|
||||
if err != nil {
|
||||
return err
|
||||
} else if didDelete {
|
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return nil
|
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}
|
||||
|
||||
didDelete, err = maybeDeleteLibraryMsg(ctx, dbConn, msg)
|
||||
if err != nil {
|
||||
return err
|
||||
} else if didDelete {
|
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return nil
|
||||
}
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||||
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||||
weCareAboutThisMessagesContents := false ||
|
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flags&ForceSnippet != 0 ||
|
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msg.ChannelID == config.Config.Discord.ShowcaseChannelID ||
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||||
weAlreadyHaveMessageContent(ctx, dbConn, msg)
|
||||
if weCareAboutThisMessagesContents {
|
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_, err := PersistMessage(ctx, dbConn, msg)
|
||||
if err != nil {
|
||||
return oops.New(err, "failed to persist new/updated Discord message")
|
||||
}
|
||||
}
|
||||
|
||||
//
|
||||
// It's snippet time.
|
||||
//
|
||||
{
|
||||
// Fetch the data we need to evaluate what to do from here.
|
||||
type savedMessageAndSnippet struct {
|
||||
Message models.DiscordMessage `db:"msg"`
|
||||
MessageContent *models.DiscordMessageContent `db:"c"`
|
||||
Snippet *models.Snippet `db:"snippet"`
|
||||
DiscordUser *models.DiscordUser `db:"duser"`
|
||||
HMNUser *models.User `db:"u"`
|
||||
}
|
||||
isaved, err := db.QueryOne(ctx, tx, savedMessageAndSnippet{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM
|
||||
handmade_discordmessage AS msg
|
||||
LEFT JOIN handmade_discordmessagecontent AS c ON c.message_id = msg.id
|
||||
LEFT JOIN handmade_snippet AS snippet ON snippet.discord_message_id = msg.id
|
||||
LEFT JOIN handmade_discorduser AS duser ON msg.user_id = duser.userid
|
||||
LEFT JOIN auth_user AS u ON duser.hmn_user_id = u.id
|
||||
WHERE
|
||||
msg.id = $1
|
||||
`,
|
||||
msg.ID,
|
||||
)
|
||||
if errors.Is(err, db.NotFound) {
|
||||
goto nosnippet
|
||||
} else if err != nil {
|
||||
return oops.New(err, "failed to fetch snippet data and stuff")
|
||||
}
|
||||
saved := isaved.(*savedMessageAndSnippet)
|
||||
|
||||
if saved.DiscordUser == nil {
|
||||
goto nosnippet
|
||||
}
|
||||
|
||||
snippetableAsset, snippetableUrl, err := getSnippetAssetOrUrl(ctx, tx, msg.ID)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
messageIsSnippetable := snippetableAsset != nil || snippetableUrl != ""
|
||||
if messageIsSnippetable {
|
||||
createSnippet, updateSnippet := false, false
|
||||
|
||||
if saved.Snippet == nil {
|
||||
// No snippet exists. Maybe create one?
|
||||
wantSnippetBecauseShowcase := true &&
|
||||
msg.ChannelID == config.Config.Discord.ShowcaseChannelID &&
|
||||
saved.HMNUser.DiscordSaveShowcase
|
||||
wantNewSnippet := false ||
|
||||
wantSnippetBecauseShowcase ||
|
||||
flags&ForceSnippet != 0
|
||||
|
||||
createSnippet = true &&
|
||||
flags&CreateSnippetsOnNewMessages != 0 &&
|
||||
wantNewSnippet &&
|
||||
saved.MessageContent != nil &&
|
||||
saved.Message.SnippetCreated == false
|
||||
} else {
|
||||
// Update the snippet
|
||||
updateSnippet = true
|
||||
}
|
||||
|
||||
if createSnippet {
|
||||
// TODO
|
||||
} else if updateSnippet {
|
||||
// TODO
|
||||
}
|
||||
} else {
|
||||
// Delete any existing snippets (don't restrict this by channel!)
|
||||
// Message edits can happen anywhere, even in channels where we don't
|
||||
// delete messages like we do in showcase.
|
||||
|
||||
// TODO
|
||||
}
|
||||
}
|
||||
nosnippet:
|
||||
|
||||
return nil
|
||||
})
|
||||
}
|
||||
|
||||
// Call whenever a Discord message is deleted, in any channel.
|
||||
func MessageDeleted(ctx context.Context, dbConn db.ConnOrTx, msg *Message) {
|
||||
|
||||
}
|
||||
|
||||
func messageHasLinks(content string) bool {
|
||||
links := reDiscordMessageLink.FindAllString(content, -1)
|
||||
for _, link := range links {
|
||||
_, err := url.Parse(strings.TrimSpace(link))
|
||||
if err == nil {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func weAlreadyHaveMessageContent(
|
||||
ctx context.Context,
|
||||
dbConn db.ConnOrTx,
|
||||
msg *Message,
|
||||
) bool {
|
||||
hasContent, err := db.QueryBool(ctx, dbConn,
|
||||
`
|
||||
SELECT COUNT(*) > 0
|
||||
FROM
|
||||
handmade_discordmessagecontent
|
||||
WHERE
|
||||
message_id = $1
|
||||
`,
|
||||
msg.ID,
|
||||
)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
return hasContent
|
||||
}
|
||||
|
||||
// Yields HTML and tags for a snippet, but doesn't actually create the snippet.
|
||||
func messageToSnippetData() {
|
||||
|
||||
}
|
||||
|
|
@ -3,43 +3,55 @@ package discord
|
|||
import (
|
||||
"context"
|
||||
|
||||
"git.handmade.network/hmn/hmn/src/config"
|
||||
"git.handmade.network/hmn/hmn/src/db"
|
||||
"git.handmade.network/hmn/hmn/src/oops"
|
||||
)
|
||||
|
||||
func (bot *botInstance) processLibraryMsg(ctx context.Context, msg *Message) error {
|
||||
func maybeDeleteLibraryMsg(
|
||||
ctx context.Context,
|
||||
dbConn db.ConnOrTx,
|
||||
msg *Message,
|
||||
) (didDelete bool, err error) {
|
||||
// Ensure basic info about the message
|
||||
if msg.ChannelID != config.Config.Discord.LibraryChannelID {
|
||||
return false, nil
|
||||
}
|
||||
switch msg.Type {
|
||||
case MessageTypeDefault, MessageTypeReply, MessageTypeApplicationCommand:
|
||||
default:
|
||||
return nil
|
||||
return false, nil
|
||||
}
|
||||
|
||||
if !msg.OriginalHasFields("content") {
|
||||
return nil
|
||||
return false, nil
|
||||
}
|
||||
|
||||
// Maybe delete it if it's bad
|
||||
didDelete = false
|
||||
if !messageHasLinks(msg.Content) {
|
||||
err := DeleteMessage(ctx, msg.ChannelID, msg.ID)
|
||||
if err != nil {
|
||||
return oops.New(err, "failed to delete message")
|
||||
return false, oops.New(err, "failed to delete message")
|
||||
}
|
||||
didDelete = true
|
||||
|
||||
if !msg.Author.IsBot {
|
||||
channel, err := CreateDM(ctx, msg.Author.ID)
|
||||
if err != nil {
|
||||
return oops.New(err, "failed to create DM channel")
|
||||
return false, oops.New(err, "failed to create DM channel")
|
||||
}
|
||||
|
||||
err = SendMessages(ctx, bot.dbConn, MessageToSend{
|
||||
err = SendMessages(ctx, dbConn, MessageToSend{
|
||||
ChannelID: channel.ID,
|
||||
Req: CreateMessageRequest{
|
||||
Content: "Posts in #the-library are required to have a link. Discuss library content in other relevant channels.",
|
||||
},
|
||||
})
|
||||
if err != nil {
|
||||
return oops.New(err, "failed to send showcase warning message")
|
||||
return false, oops.New(err, "failed to send showcase warning message")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
return didDelete, nil
|
||||
}
|
||||
|
|
|
|||
|
|
@ -246,13 +246,14 @@ const (
|
|||
|
||||
// https://discord.com/developers/docs/resources/channel#message-object
|
||||
type Message struct {
|
||||
ID string `json:"id"`
|
||||
ChannelID string `json:"channel_id"`
|
||||
GuildID *string `json:"guild_id"`
|
||||
Content string `json:"content"`
|
||||
Author *User `json:"author"` // note that this may not be an actual valid user (see the docs)
|
||||
Timestamp string `json:"timestamp"`
|
||||
Type MessageType `json:"type"`
|
||||
ID string `json:"id"`
|
||||
ChannelID string `json:"channel_id"`
|
||||
GuildID *string `json:"guild_id"`
|
||||
Content string `json:"content"`
|
||||
Author *User `json:"author"` // note that this may not be an actual valid user (see the docs)
|
||||
Timestamp string `json:"timestamp"`
|
||||
EditedTimestamp *string `json:"edited_timestamp"`
|
||||
Type MessageType `json:"type"`
|
||||
|
||||
Attachments []Attachment `json:"attachments"`
|
||||
Embeds []Embed `json:"embeds"`
|
||||
|
|
|
|||
|
|
@ -0,0 +1,373 @@
|
|||
package discord
|
||||
|
||||
import (
|
||||
"context"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"net/http"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"git.handmade.network/hmn/hmn/src/assets"
|
||||
"git.handmade.network/hmn/hmn/src/config"
|
||||
"git.handmade.network/hmn/hmn/src/db"
|
||||
"git.handmade.network/hmn/hmn/src/models"
|
||||
"git.handmade.network/hmn/hmn/src/oops"
|
||||
"github.com/google/uuid"
|
||||
)
|
||||
|
||||
/*
|
||||
Ensures that a Discord message is stored in the database. It will also store
|
||||
the message's contents, if allowed. This function is idempotent and can be
|
||||
called regardless of whether the item already exists in the database.
|
||||
|
||||
This does not create snippets or do anything besides save the message itself.
|
||||
*/
|
||||
func PersistMessage(
|
||||
ctx context.Context,
|
||||
dbConn db.ConnOrTx,
|
||||
msg *Message,
|
||||
) (*models.DiscordMessage, error) {
|
||||
tx, err := dbConn.Begin(ctx)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to start transaction")
|
||||
}
|
||||
defer tx.Rollback(ctx)
|
||||
|
||||
// For every single Discord message on the server, we store a lightweight
|
||||
// record of its existence. This allows us to efficiently retrieve message
|
||||
// contents when someone links their Discord account. Naturally, we do this
|
||||
// regardless of whether a user has linked their Discord account.
|
||||
//
|
||||
// Unless a user has linked their Discord account, no message content is
|
||||
// ever saved.
|
||||
iDiscordMessage, err := db.QueryOne(ctx, tx, models.DiscordMessage{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM handmade_discordmessage
|
||||
WHERE id = $1
|
||||
`,
|
||||
msg.ID,
|
||||
)
|
||||
if errors.Is(err, db.NotFound) {
|
||||
if !msg.OriginalHasFields("author", "timestamp") {
|
||||
return nil, errNotEnoughInfo
|
||||
}
|
||||
|
||||
guildID := msg.GuildID
|
||||
if guildID == nil {
|
||||
/*
|
||||
This is weird, but it can happen when we fetch messages from
|
||||
history instead of receiving it from the gateway. In this case
|
||||
we just assume it's from the HMN server.
|
||||
*/
|
||||
guildID = &config.Config.Discord.GuildID
|
||||
}
|
||||
|
||||
iDiscordMessage, err = db.QueryOne(ctx, tx, models.DiscordMessage{},
|
||||
`
|
||||
INSERT INTO handmade_discordmessage (id, channel_id, guild_id, url, user_id, sent_at, snippet_created)
|
||||
VALUES ($1, $2, $3, $4, $5, $6, $7)
|
||||
RETURNING $columns
|
||||
`,
|
||||
msg.ID,
|
||||
msg.ChannelID,
|
||||
*guildID,
|
||||
msg.JumpURL(),
|
||||
msg.Author.ID,
|
||||
msg.Time(),
|
||||
false,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to save new discord message")
|
||||
}
|
||||
} else if err != nil {
|
||||
return nil, oops.New(err, "failed to check for existing Discord message")
|
||||
}
|
||||
discordMessage := iDiscordMessage.(*models.DiscordMessage)
|
||||
|
||||
//
|
||||
// Time to save content!
|
||||
//
|
||||
{
|
||||
// Check for linked Discord user
|
||||
iDiscordUser, err := db.QueryOne(ctx, tx, models.DiscordUser{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM handmade_discorduser
|
||||
WHERE userid = $1
|
||||
`,
|
||||
discordMessage.UserID,
|
||||
)
|
||||
if errors.Is(err, db.NotFound) {
|
||||
goto cancelSavingContent // considered harmful??
|
||||
} else if err != nil {
|
||||
return nil, oops.New(err, "failed to look up linked Discord user")
|
||||
}
|
||||
discordUser := iDiscordUser.(*models.DiscordUser)
|
||||
|
||||
// Save message text
|
||||
if msg.OriginalHasFields("content") {
|
||||
_, err = tx.Exec(ctx,
|
||||
`
|
||||
INSERT INTO handmade_discordmessagecontent (message_id, discord_id, last_content)
|
||||
VALUES ($1, $2, $3)
|
||||
ON CONFLICT (message_id) DO UPDATE SET
|
||||
discord_id = EXCLUDED.discord_id,
|
||||
last_content = EXCLUDED.last_content
|
||||
`,
|
||||
discordMessage.ID,
|
||||
discordUser.ID,
|
||||
CleanUpMarkdown(ctx, msg.Content),
|
||||
)
|
||||
}
|
||||
|
||||
// Save attachments
|
||||
if msg.OriginalHasFields("attachments") {
|
||||
for _, attachment := range msg.Attachments {
|
||||
_, err := saveAttachment(ctx, tx, &attachment, discordUser.HMNUserId, msg.ID)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to save attachment")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Save / delete embeds
|
||||
if msg.OriginalHasFields("embeds") {
|
||||
numSavedEmbeds, err := db.QueryInt(ctx, tx,
|
||||
`
|
||||
SELECT COUNT(*)
|
||||
FROM handmade_discordmessageembed
|
||||
WHERE message_id = $1
|
||||
`,
|
||||
msg.ID,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to count existing embeds")
|
||||
}
|
||||
if numSavedEmbeds == 0 {
|
||||
// No embeds yet, so save new ones
|
||||
for _, embed := range msg.Embeds {
|
||||
_, err := saveEmbed(ctx, tx, &embed, discordUser.HMNUserId, msg.ID)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to save embed")
|
||||
}
|
||||
}
|
||||
} else if len(msg.Embeds) > 0 {
|
||||
// Embeds were removed from the message
|
||||
_, err := tx.Exec(ctx,
|
||||
`
|
||||
DELETE FROM handmade_discordmessageembed
|
||||
WHERE message_id = $1
|
||||
`,
|
||||
msg.ID,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to delete embeds")
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
cancelSavingContent:
|
||||
|
||||
err = tx.Commit(ctx)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to commit transaction")
|
||||
}
|
||||
|
||||
return discordMessage, nil
|
||||
}
|
||||
|
||||
/*
|
||||
Saves a Discord attachment as an HMN asset. Idempotent; will not create an
|
||||
attachment that already exists.
|
||||
*/
|
||||
func saveAttachment(
|
||||
ctx context.Context,
|
||||
tx db.ConnOrTx,
|
||||
attachment *Attachment,
|
||||
hmnUserID int,
|
||||
discordMessageID string,
|
||||
) (*models.DiscordMessageAttachment, error) {
|
||||
iexisting, err := db.QueryOne(ctx, tx, models.DiscordMessageAttachment{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM handmade_discordmessageattachment
|
||||
WHERE id = $1
|
||||
`,
|
||||
attachment.ID,
|
||||
)
|
||||
if err == nil {
|
||||
return iexisting.(*models.DiscordMessageAttachment), nil
|
||||
} else if errors.Is(err, db.NotFound) {
|
||||
// this is fine, just create it
|
||||
} else {
|
||||
return nil, oops.New(err, "failed to check for existing attachment")
|
||||
}
|
||||
|
||||
width := 0
|
||||
height := 0
|
||||
if attachment.Width != nil {
|
||||
width = *attachment.Width
|
||||
}
|
||||
if attachment.Height != nil {
|
||||
height = *attachment.Height
|
||||
}
|
||||
|
||||
content, _, err := downloadDiscordResource(ctx, attachment.Url)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to download Discord attachment")
|
||||
}
|
||||
|
||||
contentType := "application/octet-stream"
|
||||
if attachment.ContentType != nil {
|
||||
contentType = *attachment.ContentType
|
||||
}
|
||||
|
||||
asset, err := assets.Create(ctx, tx, assets.CreateInput{
|
||||
Content: content,
|
||||
Filename: attachment.Filename,
|
||||
ContentType: contentType,
|
||||
|
||||
UploaderID: &hmnUserID,
|
||||
Width: width,
|
||||
Height: height,
|
||||
})
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to save asset for Discord attachment")
|
||||
}
|
||||
|
||||
iDiscordAttachment, err := db.QueryOne(ctx, tx, models.DiscordMessageAttachment{},
|
||||
`
|
||||
INSERT INTO handmade_discordmessageattachment (id, asset_id, message_id)
|
||||
VALUES ($1, $2, $3)
|
||||
RETURNING $columns
|
||||
`,
|
||||
attachment.ID,
|
||||
asset.ID,
|
||||
discordMessageID,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to save Discord attachment data")
|
||||
}
|
||||
|
||||
return iDiscordAttachment.(*models.DiscordMessageAttachment), nil
|
||||
}
|
||||
|
||||
// Saves an embed from Discord. NOTE: This is _not_ idempotent, so only call it
|
||||
// if you do not have any embeds saved for this message yet.
|
||||
func saveEmbed(
|
||||
ctx context.Context,
|
||||
tx db.ConnOrTx,
|
||||
embed *Embed,
|
||||
hmnUserID int,
|
||||
discordMessageID string,
|
||||
) (*models.DiscordMessageEmbed, error) {
|
||||
isOkImageType := func(contentType string) bool {
|
||||
return strings.HasPrefix(contentType, "image/")
|
||||
}
|
||||
|
||||
isOkVideoType := func(contentType string) bool {
|
||||
return strings.HasPrefix(contentType, "video/")
|
||||
}
|
||||
|
||||
maybeSaveImageish := func(i EmbedImageish, contentTypeCheck func(string) bool) (*uuid.UUID, error) {
|
||||
content, contentType, err := downloadDiscordResource(ctx, *i.Url)
|
||||
if err != nil {
|
||||
var statusError DiscordResourceBadStatusCode
|
||||
if errors.As(err, &statusError) {
|
||||
return nil, nil
|
||||
} else {
|
||||
return nil, oops.New(err, "failed to save Discord embed")
|
||||
}
|
||||
}
|
||||
if contentTypeCheck(contentType) {
|
||||
in := assets.CreateInput{
|
||||
Content: content,
|
||||
Filename: "embed",
|
||||
ContentType: contentType,
|
||||
UploaderID: &hmnUserID,
|
||||
}
|
||||
|
||||
if i.Width != nil {
|
||||
in.Width = *i.Width
|
||||
}
|
||||
if i.Height != nil {
|
||||
in.Height = *i.Height
|
||||
}
|
||||
|
||||
asset, err := assets.Create(ctx, tx, in)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to create asset from embed")
|
||||
}
|
||||
return &asset.ID, nil
|
||||
}
|
||||
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
var imageAssetId *uuid.UUID
|
||||
var videoAssetId *uuid.UUID
|
||||
var err error
|
||||
|
||||
if embed.Video != nil && embed.Video.Url != nil {
|
||||
videoAssetId, err = maybeSaveImageish(embed.Video.EmbedImageish, isOkVideoType)
|
||||
} else if embed.Image != nil && embed.Image.Url != nil {
|
||||
imageAssetId, err = maybeSaveImageish(embed.Image.EmbedImageish, isOkImageType)
|
||||
} else if embed.Thumbnail != nil && embed.Thumbnail.Url != nil {
|
||||
imageAssetId, err = maybeSaveImageish(embed.Thumbnail.EmbedImageish, isOkImageType)
|
||||
}
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// Save the embed into the db
|
||||
iDiscordEmbed, err := db.QueryOne(ctx, tx, models.DiscordMessageEmbed{},
|
||||
`
|
||||
INSERT INTO handmade_discordmessageembed (title, description, url, message_id, image_id, video_id)
|
||||
VALUES ($1, $2, $3, $4, $5, $6)
|
||||
RETURNING id
|
||||
`,
|
||||
embed.Title,
|
||||
embed.Description,
|
||||
embed.Url,
|
||||
discordMessageID,
|
||||
imageAssetId,
|
||||
videoAssetId,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to insert new embed")
|
||||
}
|
||||
|
||||
return iDiscordEmbed.(*models.DiscordMessageEmbed), nil
|
||||
}
|
||||
|
||||
var discordDownloadClient = &http.Client{
|
||||
Timeout: 10 * time.Second,
|
||||
}
|
||||
|
||||
type DiscordResourceBadStatusCode error
|
||||
|
||||
func downloadDiscordResource(ctx context.Context, url string) ([]byte, string, error) {
|
||||
req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
|
||||
if err != nil {
|
||||
return nil, "", oops.New(err, "failed to make Discord download request")
|
||||
}
|
||||
res, err := discordDownloadClient.Do(req)
|
||||
if err != nil {
|
||||
return nil, "", oops.New(err, "failed to fetch Discord resource data")
|
||||
}
|
||||
defer res.Body.Close()
|
||||
|
||||
if res.StatusCode < 200 || 299 < res.StatusCode {
|
||||
return nil, "", DiscordResourceBadStatusCode(fmt.Errorf("status code %d from Discord resource: %s", res.StatusCode, url))
|
||||
}
|
||||
|
||||
content, err := io.ReadAll(res.Body)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
return content, res.Header.Get("Content-Type"), nil
|
||||
}
|
||||
|
|
@ -3,15 +3,9 @@ package discord
|
|||
import (
|
||||
"context"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"regexp"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"git.handmade.network/hmn/hmn/src/assets"
|
||||
"git.handmade.network/hmn/hmn/src/config"
|
||||
"git.handmade.network/hmn/hmn/src/db"
|
||||
"git.handmade.network/hmn/hmn/src/hmndata"
|
||||
|
|
@ -19,49 +13,40 @@ import (
|
|||
"git.handmade.network/hmn/hmn/src/models"
|
||||
"git.handmade.network/hmn/hmn/src/oops"
|
||||
"git.handmade.network/hmn/hmn/src/parsing"
|
||||
"github.com/google/uuid"
|
||||
"github.com/rs/zerolog/log"
|
||||
)
|
||||
|
||||
var reDiscordMessageLink = regexp.MustCompile(`https?://.+?(\s|$)`)
|
||||
|
||||
var errNotEnoughInfo = errors.New("Discord didn't send enough info in this event for us to do this")
|
||||
|
||||
func (bot *botInstance) processShowcaseMsg(ctx context.Context, msg *Message) error {
|
||||
switch msg.Type {
|
||||
// For any persisted Discord message, attempt to create or update a snippet.
|
||||
func makeSnippet(
|
||||
ctx context.Context,
|
||||
dbConn db.ConnOrTx,
|
||||
discordMsg *Message,
|
||||
hmnMsg *models.DiscordMessage,
|
||||
) error {
|
||||
if discordMsg.ChannelID != config.Config.Discord.ShowcaseChannelID {
|
||||
return nil
|
||||
}
|
||||
|
||||
switch discordMsg.Type {
|
||||
case MessageTypeDefault, MessageTypeReply, MessageTypeApplicationCommand:
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
|
||||
didDelete, err := bot.maybeDeleteShowcaseMsg(ctx, msg)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if didDelete {
|
||||
return nil
|
||||
}
|
||||
|
||||
tx, err := bot.dbConn.Begin(ctx)
|
||||
tx, err := dbConn.Begin(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
defer tx.Rollback(ctx)
|
||||
|
||||
// save the message, maybe save its contents
|
||||
newMsg, err := SaveMessageAndContents(ctx, tx, msg)
|
||||
if errors.Is(err, errNotEnoughInfo) {
|
||||
logging.ExtractLogger(ctx).Warn().
|
||||
Interface("msg", msg).
|
||||
Msg("didn't have enough info to process Discord message")
|
||||
return nil
|
||||
} else if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// ...and maybe make a snippet too, if the user wants us to
|
||||
duser, err := FetchDiscordUser(ctx, tx, newMsg.UserID)
|
||||
duser, err := hmndata.FetchDiscordUser(ctx, tx, hmnMsg.UserID)
|
||||
if err == nil && duser.HMNUser.DiscordSaveShowcase {
|
||||
err = CreateMessageSnippets(ctx, tx, newMsg.UserID, msg.ID)
|
||||
err = CreateMessageSnippets(ctx, tx, hmnMsg.UserID, discordMsg.ID)
|
||||
if err != nil {
|
||||
return oops.New(err, "failed to create snippet in gateway")
|
||||
}
|
||||
|
|
@ -81,7 +66,19 @@ func (bot *botInstance) processShowcaseMsg(ctx context.Context, msg *Message) er
|
|||
return nil
|
||||
}
|
||||
|
||||
func (bot *botInstance) maybeDeleteShowcaseMsg(ctx context.Context, msg *Message) (didDelete bool, err error) {
|
||||
func maybeDeleteShowcaseMsg(ctx context.Context, dbConn db.ConnOrTx, msg *Message) (didDelete bool, err error) {
|
||||
// Ensure basics about the message
|
||||
if msg.ChannelID != config.Config.Discord.ShowcaseChannelID {
|
||||
return false, nil
|
||||
}
|
||||
switch msg.Type {
|
||||
case MessageTypeDefault, MessageTypeReply:
|
||||
// proceed
|
||||
default:
|
||||
return false, nil
|
||||
}
|
||||
|
||||
// Check message content and stuff
|
||||
hasGoodContent := true
|
||||
if msg.OriginalHasFields("content") && !messageHasLinks(msg.Content) {
|
||||
hasGoodContent = false
|
||||
|
|
@ -106,7 +103,7 @@ func (bot *botInstance) maybeDeleteShowcaseMsg(ctx context.Context, msg *Message
|
|||
return false, oops.New(err, "failed to create DM channel")
|
||||
}
|
||||
|
||||
err = SendMessages(ctx, bot.dbConn, MessageToSend{
|
||||
err = SendMessages(ctx, dbConn, MessageToSend{
|
||||
ChannelID: channel.ID,
|
||||
Req: CreateMessageRequest{
|
||||
Content: "Posts in #project-showcase are required to have either an image/video or a link. Discuss showcase content in #projects.",
|
||||
|
|
@ -121,420 +118,34 @@ func (bot *botInstance) maybeDeleteShowcaseMsg(ctx context.Context, msg *Message
|
|||
return didDelete, nil
|
||||
}
|
||||
|
||||
/*
|
||||
Ensures that a Discord message is stored in the database. This function is
|
||||
idempotent and can be called regardless of whether the item already exists in
|
||||
the database.
|
||||
|
||||
This does not create snippets or do anything besides save the message itself.
|
||||
*/
|
||||
func SaveMessage(
|
||||
ctx context.Context,
|
||||
tx db.ConnOrTx,
|
||||
msg *Message,
|
||||
) (*models.DiscordMessage, error) {
|
||||
iDiscordMessage, err := db.QueryOne(ctx, tx, models.DiscordMessage{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM handmade_discordmessage
|
||||
WHERE id = $1
|
||||
`,
|
||||
msg.ID,
|
||||
)
|
||||
// For any Discord message, attempt to delete any snippets.
|
||||
func deleteSnippet(ctx context.Context, dbConn db.ConnOrTx, msgDelete MessageDelete) {
|
||||
s, err := hmndata.FetchSnippetForDiscordMessage(ctx, dbConn, nil, msgDelete.ID, hmndata.SnippetQuery{})
|
||||
if errors.Is(err, db.NotFound) {
|
||||
if !msg.OriginalHasFields("author", "timestamp") {
|
||||
return nil, errNotEnoughInfo
|
||||
}
|
||||
return
|
||||
} else if err != nil {
|
||||
logging.ExtractLogger(ctx).Error().Err(err).Msg("")
|
||||
return
|
||||
}
|
||||
|
||||
guildID := msg.GuildID
|
||||
if guildID == nil {
|
||||
/*
|
||||
This is weird, but it can happen when we fetch messages from
|
||||
history instead of receiving it from the gateway. In this case
|
||||
we just assume it's from the HMN server.
|
||||
*/
|
||||
guildID = &config.Config.Discord.GuildID
|
||||
}
|
||||
|
||||
_, err = tx.Exec(ctx,
|
||||
shouldDeleteSnippet := s.Owner != nil && s.Owner.DiscordDeleteSnippetOnMessageDelete
|
||||
if shouldDeleteSnippet {
|
||||
logging.ExtractLogger(ctx).Debug().
|
||||
Int("snippet_id", s.Snippet.ID).
|
||||
Int("user_id", s.Owner.ID).
|
||||
Msg("deleting snippet from Discord message")
|
||||
_, err = dbConn.Exec(ctx,
|
||||
`
|
||||
INSERT INTO handmade_discordmessage (id, channel_id, guild_id, url, user_id, sent_at, snippet_created)
|
||||
VALUES ($1, $2, $3, $4, $5, $6, $7)
|
||||
`,
|
||||
msg.ID,
|
||||
msg.ChannelID,
|
||||
*guildID,
|
||||
msg.JumpURL(),
|
||||
msg.Author.ID,
|
||||
msg.Time(),
|
||||
false,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to save new discord message")
|
||||
}
|
||||
|
||||
/*
|
||||
TODO(db): This is a spot where it would be really nice to be able
|
||||
to use RETURNING, and avoid this second query.
|
||||
*/
|
||||
iDiscordMessage, err = db.QueryOne(ctx, tx, models.DiscordMessage{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM handmade_discordmessage
|
||||
DELETE FROM handmade_snippet
|
||||
WHERE id = $1
|
||||
`,
|
||||
msg.ID,
|
||||
s.Snippet.ID,
|
||||
)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
} else if err != nil {
|
||||
return nil, oops.New(err, "failed to check for existing Discord message")
|
||||
}
|
||||
|
||||
return iDiscordMessage.(*models.DiscordMessage), nil
|
||||
}
|
||||
|
||||
/*
|
||||
Processes a single Discord message, saving as much of the message's content
|
||||
and attachments as allowed by our rules and user settings. Does NOT create
|
||||
snippets.
|
||||
|
||||
Idempotent; can be called any time whether the message exists or not.
|
||||
*/
|
||||
func SaveMessageAndContents(
|
||||
ctx context.Context,
|
||||
tx db.ConnOrTx,
|
||||
msg *Message,
|
||||
) (*models.DiscordMessage, error) {
|
||||
newMsg, err := SaveMessage(ctx, tx, msg)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// Check for linked Discord user
|
||||
iDiscordUser, err := db.QueryOne(ctx, tx, models.DiscordUser{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM handmade_discorduser
|
||||
WHERE userid = $1
|
||||
`,
|
||||
newMsg.UserID,
|
||||
)
|
||||
if errors.Is(err, db.NotFound) {
|
||||
return newMsg, nil
|
||||
} else if err != nil {
|
||||
return nil, oops.New(err, "failed to look up linked Discord user")
|
||||
}
|
||||
discordUser := iDiscordUser.(*models.DiscordUser)
|
||||
|
||||
// We have a linked Discord account, so save the message contents (regardless of
|
||||
// whether we create a snippet or not).
|
||||
|
||||
if msg.OriginalHasFields("content") {
|
||||
_, err = tx.Exec(ctx,
|
||||
`
|
||||
INSERT INTO handmade_discordmessagecontent (message_id, discord_id, last_content)
|
||||
VALUES ($1, $2, $3)
|
||||
ON CONFLICT (message_id) DO UPDATE SET
|
||||
discord_id = EXCLUDED.discord_id,
|
||||
last_content = EXCLUDED.last_content
|
||||
`,
|
||||
newMsg.ID,
|
||||
discordUser.ID,
|
||||
CleanUpMarkdown(ctx, msg.Content),
|
||||
)
|
||||
}
|
||||
|
||||
// Save attachments
|
||||
if msg.OriginalHasFields("attachments") {
|
||||
for _, attachment := range msg.Attachments {
|
||||
_, err := saveAttachment(ctx, tx, &attachment, discordUser.HMNUserId, msg.ID)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to save attachment")
|
||||
}
|
||||
log.Error().Err(err).Msg("failed to delete snippet")
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// Save / delete embeds
|
||||
if msg.OriginalHasFields("embeds") {
|
||||
numSavedEmbeds, err := db.QueryInt(ctx, tx,
|
||||
`
|
||||
SELECT COUNT(*)
|
||||
FROM handmade_discordmessageembed
|
||||
WHERE message_id = $1
|
||||
`,
|
||||
msg.ID,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to count existing embeds")
|
||||
}
|
||||
if numSavedEmbeds == 0 {
|
||||
// No embeds yet, so save new ones
|
||||
for _, embed := range msg.Embeds {
|
||||
_, err := saveEmbed(ctx, tx, &embed, discordUser.HMNUserId, msg.ID)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to save embed")
|
||||
}
|
||||
}
|
||||
} else if len(msg.Embeds) > 0 {
|
||||
// Embeds were removed from the message
|
||||
_, err := tx.Exec(ctx,
|
||||
`
|
||||
DELETE FROM handmade_discordmessageembed
|
||||
WHERE message_id = $1
|
||||
`,
|
||||
msg.ID,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to delete embeds")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return newMsg, nil
|
||||
}
|
||||
|
||||
var discordDownloadClient = &http.Client{
|
||||
Timeout: 10 * time.Second,
|
||||
}
|
||||
|
||||
type DiscordResourceBadStatusCode error
|
||||
|
||||
func downloadDiscordResource(ctx context.Context, url string) ([]byte, string, error) {
|
||||
req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
|
||||
if err != nil {
|
||||
return nil, "", oops.New(err, "failed to make Discord download request")
|
||||
}
|
||||
res, err := discordDownloadClient.Do(req)
|
||||
if err != nil {
|
||||
return nil, "", oops.New(err, "failed to fetch Discord resource data")
|
||||
}
|
||||
defer res.Body.Close()
|
||||
|
||||
if res.StatusCode < 200 || 299 < res.StatusCode {
|
||||
return nil, "", DiscordResourceBadStatusCode(fmt.Errorf("status code %d from Discord resource: %s", res.StatusCode, url))
|
||||
}
|
||||
|
||||
content, err := io.ReadAll(res.Body)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
return content, res.Header.Get("Content-Type"), nil
|
||||
}
|
||||
|
||||
/*
|
||||
Saves a Discord attachment as an HMN asset. Idempotent; will not create an attachment
|
||||
that already exists
|
||||
*/
|
||||
func saveAttachment(
|
||||
ctx context.Context,
|
||||
tx db.ConnOrTx,
|
||||
attachment *Attachment,
|
||||
hmnUserID int,
|
||||
discordMessageID string,
|
||||
) (*models.DiscordMessageAttachment, error) {
|
||||
iexisting, err := db.QueryOne(ctx, tx, models.DiscordMessageAttachment{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM handmade_discordmessageattachment
|
||||
WHERE id = $1
|
||||
`,
|
||||
attachment.ID,
|
||||
)
|
||||
if err == nil {
|
||||
return iexisting.(*models.DiscordMessageAttachment), nil
|
||||
} else if errors.Is(err, db.NotFound) {
|
||||
// this is fine, just create it
|
||||
} else {
|
||||
return nil, oops.New(err, "failed to check for existing attachment")
|
||||
}
|
||||
|
||||
width := 0
|
||||
height := 0
|
||||
if attachment.Width != nil {
|
||||
width = *attachment.Width
|
||||
}
|
||||
if attachment.Height != nil {
|
||||
height = *attachment.Height
|
||||
}
|
||||
|
||||
content, _, err := downloadDiscordResource(ctx, attachment.Url)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to download Discord attachment")
|
||||
}
|
||||
|
||||
contentType := "application/octet-stream"
|
||||
if attachment.ContentType != nil {
|
||||
contentType = *attachment.ContentType
|
||||
}
|
||||
|
||||
asset, err := assets.Create(ctx, tx, assets.CreateInput{
|
||||
Content: content,
|
||||
Filename: attachment.Filename,
|
||||
ContentType: contentType,
|
||||
|
||||
UploaderID: &hmnUserID,
|
||||
Width: width,
|
||||
Height: height,
|
||||
})
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to save asset for Discord attachment")
|
||||
}
|
||||
|
||||
// TODO(db): RETURNING plz thanks
|
||||
_, err = tx.Exec(ctx,
|
||||
`
|
||||
INSERT INTO handmade_discordmessageattachment (id, asset_id, message_id)
|
||||
VALUES ($1, $2, $3)
|
||||
`,
|
||||
attachment.ID,
|
||||
asset.ID,
|
||||
discordMessageID,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to save Discord attachment data")
|
||||
}
|
||||
|
||||
iDiscordAttachment, err := db.QueryOne(ctx, tx, models.DiscordMessageAttachment{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM handmade_discordmessageattachment
|
||||
WHERE id = $1
|
||||
`,
|
||||
attachment.ID,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to fetch new Discord attachment data")
|
||||
}
|
||||
|
||||
return iDiscordAttachment.(*models.DiscordMessageAttachment), nil
|
||||
}
|
||||
|
||||
// Saves an embed from Discord. NOTE: This is _not_ idempotent, so only call it
|
||||
// if you do not have any embeds saved for this message yet.
|
||||
func saveEmbed(
|
||||
ctx context.Context,
|
||||
tx db.ConnOrTx,
|
||||
embed *Embed,
|
||||
hmnUserID int,
|
||||
discordMessageID string,
|
||||
) (*models.DiscordMessageEmbed, error) {
|
||||
isOkImageType := func(contentType string) bool {
|
||||
return strings.HasPrefix(contentType, "image/")
|
||||
}
|
||||
|
||||
isOkVideoType := func(contentType string) bool {
|
||||
return strings.HasPrefix(contentType, "video/")
|
||||
}
|
||||
|
||||
maybeSaveImageish := func(i EmbedImageish, contentTypeCheck func(string) bool) (*uuid.UUID, error) {
|
||||
content, contentType, err := downloadDiscordResource(ctx, *i.Url)
|
||||
if err != nil {
|
||||
var statusError DiscordResourceBadStatusCode
|
||||
if errors.As(err, &statusError) {
|
||||
return nil, nil
|
||||
} else {
|
||||
return nil, oops.New(err, "failed to save Discord embed")
|
||||
}
|
||||
}
|
||||
if contentTypeCheck(contentType) {
|
||||
in := assets.CreateInput{
|
||||
Content: content,
|
||||
Filename: "embed",
|
||||
ContentType: contentType,
|
||||
UploaderID: &hmnUserID,
|
||||
}
|
||||
|
||||
if i.Width != nil {
|
||||
in.Width = *i.Width
|
||||
}
|
||||
if i.Height != nil {
|
||||
in.Height = *i.Height
|
||||
}
|
||||
|
||||
asset, err := assets.Create(ctx, tx, in)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to create asset from embed")
|
||||
}
|
||||
return &asset.ID, nil
|
||||
}
|
||||
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
var imageAssetId *uuid.UUID
|
||||
var videoAssetId *uuid.UUID
|
||||
var err error
|
||||
|
||||
if embed.Video != nil && embed.Video.Url != nil {
|
||||
videoAssetId, err = maybeSaveImageish(embed.Video.EmbedImageish, isOkVideoType)
|
||||
} else if embed.Image != nil && embed.Image.Url != nil {
|
||||
imageAssetId, err = maybeSaveImageish(embed.Image.EmbedImageish, isOkImageType)
|
||||
} else if embed.Thumbnail != nil && embed.Thumbnail.Url != nil {
|
||||
imageAssetId, err = maybeSaveImageish(embed.Thumbnail.EmbedImageish, isOkImageType)
|
||||
}
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// Save the embed into the db
|
||||
// TODO(db): Insert, RETURNING
|
||||
var savedEmbedId int
|
||||
err = tx.QueryRow(ctx,
|
||||
`
|
||||
INSERT INTO handmade_discordmessageembed (title, description, url, message_id, image_id, video_id)
|
||||
VALUES ($1, $2, $3, $4, $5, $6)
|
||||
RETURNING id
|
||||
`,
|
||||
embed.Title,
|
||||
embed.Description,
|
||||
embed.Url,
|
||||
discordMessageID,
|
||||
imageAssetId,
|
||||
videoAssetId,
|
||||
).Scan(&savedEmbedId)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to insert new embed")
|
||||
}
|
||||
|
||||
iDiscordEmbed, err := db.QueryOne(ctx, tx, models.DiscordMessageEmbed{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM handmade_discordmessageembed
|
||||
WHERE id = $1
|
||||
`,
|
||||
savedEmbedId,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, oops.New(err, "failed to fetch new Discord embed data")
|
||||
}
|
||||
|
||||
return iDiscordEmbed.(*models.DiscordMessageEmbed), nil
|
||||
}
|
||||
|
||||
type DiscordUserAndStuff struct {
|
||||
DiscordUser models.DiscordUser `db:"duser"`
|
||||
HMNUser models.User `db:"u"`
|
||||
}
|
||||
|
||||
func FetchDiscordUser(ctx context.Context, dbConn db.ConnOrTx, discordUserID string) (*DiscordUserAndStuff, error) {
|
||||
iuser, err := db.QueryOne(ctx, dbConn, DiscordUserAndStuff{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM
|
||||
handmade_discorduser AS duser
|
||||
JOIN auth_user AS u ON duser.hmn_user_id = u.id
|
||||
WHERE
|
||||
duser.userid = $1
|
||||
`,
|
||||
discordUserID,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return iuser.(*DiscordUserAndStuff), nil
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -542,7 +153,7 @@ Checks settings and permissions to decide whether we are allowed to create
|
|||
snippets for a user.
|
||||
*/
|
||||
func AllowedToCreateMessageSnippets(ctx context.Context, tx db.ConnOrTx, discordUserId string) (bool, error) {
|
||||
u, err := FetchDiscordUser(ctx, tx, discordUserId)
|
||||
u, err := hmndata.FetchDiscordUser(ctx, tx, discordUserId)
|
||||
if errors.Is(err, db.NotFound) {
|
||||
return false, nil
|
||||
} else if err != nil {
|
||||
|
|
@ -697,7 +308,7 @@ func UpdateSnippetTagsIfAny(ctx context.Context, dbConn db.ConnOrTx, msg *Messag
|
|||
|
||||
// Fetch the Discord user; we only process messages for users with linked
|
||||
// Discord accounts
|
||||
u, err := FetchDiscordUser(ctx, tx, msg.Author.ID)
|
||||
u, err := hmndata.FetchDiscordUser(ctx, tx, msg.Author.ID)
|
||||
if err == db.NotFound {
|
||||
return nil
|
||||
} else if err != nil {
|
||||
|
|
@ -798,68 +409,6 @@ func UpdateSnippetTagsIfAny(ctx context.Context, dbConn db.ConnOrTx, msg *Messag
|
|||
return nil
|
||||
}
|
||||
|
||||
// NOTE(ben): This is maybe redundant with the regexes we use for markdown. But
|
||||
// do we actually want to reuse those, or should we keep them separate?
|
||||
var RESnippetableUrl = regexp.MustCompile(`^https?://(youtu\.be|(www\.)?youtube\.com/watch)`)
|
||||
|
||||
func getSnippetAssetOrUrl(ctx context.Context, tx db.ConnOrTx, msg *models.DiscordMessage) (*uuid.UUID, *string, error) {
|
||||
// Check attachments
|
||||
attachments, err := db.Query(ctx, tx, models.DiscordMessageAttachment{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM handmade_discordmessageattachment
|
||||
WHERE message_id = $1
|
||||
`,
|
||||
msg.ID,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, nil, oops.New(err, "failed to fetch message attachments")
|
||||
}
|
||||
for _, iattachment := range attachments {
|
||||
attachment := iattachment.(*models.DiscordMessageAttachment)
|
||||
return &attachment.AssetID, nil, nil
|
||||
}
|
||||
|
||||
// Check embeds
|
||||
embeds, err := db.Query(ctx, tx, models.DiscordMessageEmbed{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM handmade_discordmessageembed
|
||||
WHERE message_id = $1
|
||||
`,
|
||||
msg.ID,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, nil, oops.New(err, "failed to fetch discord embeds")
|
||||
}
|
||||
for _, iembed := range embeds {
|
||||
embed := iembed.(*models.DiscordMessageEmbed)
|
||||
if embed.VideoID != nil {
|
||||
return embed.VideoID, nil, nil
|
||||
} else if embed.ImageID != nil {
|
||||
return embed.ImageID, nil, nil
|
||||
} else if embed.URL != nil {
|
||||
if RESnippetableUrl.MatchString(*embed.URL) {
|
||||
return nil, embed.URL, nil
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil, nil, nil
|
||||
}
|
||||
|
||||
func messageHasLinks(content string) bool {
|
||||
links := reDiscordMessageLink.FindAllString(content, -1)
|
||||
for _, link := range links {
|
||||
_, err := url.Parse(strings.TrimSpace(link))
|
||||
if err == nil {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
var REDiscordTag = regexp.MustCompile(`&([a-zA-Z0-9]+(-[a-zA-Z0-9]+)*)`)
|
||||
|
||||
func getDiscordTags(content string) []string {
|
||||
|
|
|
|||
|
|
@ -0,0 +1,65 @@
|
|||
package discord
|
||||
|
||||
import (
|
||||
"context"
|
||||
"regexp"
|
||||
|
||||
"git.handmade.network/hmn/hmn/src/db"
|
||||
"git.handmade.network/hmn/hmn/src/models"
|
||||
"git.handmade.network/hmn/hmn/src/oops"
|
||||
"github.com/google/uuid"
|
||||
)
|
||||
|
||||
// NOTE(ben): This is maybe redundant with the regexes we use for markdown. But
|
||||
// do we actually want to reuse those, or should we keep them separate?
|
||||
var RESnippetableUrl = regexp.MustCompile(`^https?://(youtu\.be|(www\.)?youtube\.com/watch)`)
|
||||
|
||||
// Given a Discord message for which we have saved content, this function will
|
||||
// return either an asset ID or a URL with which to make a snippet.
|
||||
//
|
||||
// Be aware that this function may return absolutely nothing.
|
||||
func getSnippetAssetOrUrl(ctx context.Context, tx db.ConnOrTx, msgID string) (*uuid.UUID, string, error) {
|
||||
// Check attachments
|
||||
attachments, err := db.Query(ctx, tx, models.DiscordMessageAttachment{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM handmade_discordmessageattachment
|
||||
WHERE message_id = $1
|
||||
`,
|
||||
msgID,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, "", oops.New(err, "failed to fetch message attachments")
|
||||
}
|
||||
for _, iattachment := range attachments {
|
||||
attachment := iattachment.(*models.DiscordMessageAttachment)
|
||||
return &attachment.AssetID, "", nil
|
||||
}
|
||||
|
||||
// Check embeds
|
||||
embeds, err := db.Query(ctx, tx, models.DiscordMessageEmbed{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM handmade_discordmessageembed
|
||||
WHERE message_id = $1
|
||||
`,
|
||||
msgID,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, "", oops.New(err, "failed to fetch discord embeds")
|
||||
}
|
||||
for _, iembed := range embeds {
|
||||
embed := iembed.(*models.DiscordMessageEmbed)
|
||||
if embed.VideoID != nil {
|
||||
return embed.VideoID, "", nil
|
||||
} else if embed.ImageID != nil {
|
||||
return embed.ImageID, "", nil
|
||||
} else if embed.URL != nil {
|
||||
if RESnippetableUrl.MatchString(*embed.URL) {
|
||||
return nil, *embed.URL, nil
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil, "", nil
|
||||
}
|
||||
|
|
@ -0,0 +1,65 @@
|
|||
package hmndata
|
||||
|
||||
import (
|
||||
"context"
|
||||
"errors"
|
||||
|
||||
"git.handmade.network/hmn/hmn/src/db"
|
||||
"git.handmade.network/hmn/hmn/src/models"
|
||||
"git.handmade.network/hmn/hmn/src/oops"
|
||||
)
|
||||
|
||||
type DiscordUserAndStuff struct {
|
||||
DiscordUser models.DiscordUser `db:"duser"`
|
||||
HMNUser models.User `db:"u"`
|
||||
}
|
||||
|
||||
func FetchDiscordUser(ctx context.Context, dbConn db.ConnOrTx, discordUserID string) (*DiscordUserAndStuff, error) {
|
||||
iuser, err := db.QueryOne(ctx, dbConn, DiscordUserAndStuff{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM
|
||||
handmade_discorduser AS duser
|
||||
JOIN auth_user AS u ON duser.hmn_user_id = u.id
|
||||
WHERE
|
||||
duser.userid = $1
|
||||
`,
|
||||
discordUserID,
|
||||
)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return iuser.(*DiscordUserAndStuff), nil
|
||||
}
|
||||
|
||||
type DiscordMessageAndStuff struct {
|
||||
Message models.DiscordMessage `db:"msg"`
|
||||
Content *models.DiscordMessageContent `db:"content"`
|
||||
|
||||
DiscordUser *models.DiscordUser `db:"duser"`
|
||||
HMNUser *models.User `db:"u"`
|
||||
}
|
||||
|
||||
func FetchDiscordMessage(ctx context.Context, dbConn db.ConnOrTx, msgID string) (*DiscordMessageAndStuff, error) {
|
||||
iresult, err := db.QueryOne(ctx, dbConn, DiscordMessageAndStuff{},
|
||||
`
|
||||
SELECT $columns
|
||||
FROM
|
||||
handmade_discordmessage AS msg
|
||||
LEFT JOIN handmade_discordmessagecontent AS content ON content.message_id = msg.id
|
||||
LEFT JOIN handmade_discorduser AS duser ON msg.user_id = duser.id
|
||||
LEFT JOIN auth_user AS u ON duser.hmn_user_id = u.id
|
||||
WHERE
|
||||
msg.id = $1
|
||||
`,
|
||||
msgID,
|
||||
)
|
||||
if errors.Is(err, db.NotFound) {
|
||||
return nil, db.NotFound
|
||||
} else if err != nil {
|
||||
return nil, oops.New(err, "failed to fetch Discord message")
|
||||
}
|
||||
result := iresult.(*DiscordMessageAndStuff)
|
||||
|
||||
return result, nil
|
||||
}
|
||||
|
|
@ -31,6 +31,7 @@ type DiscordMessage struct {
|
|||
Url string `db:"url"`
|
||||
UserID string `db:"user_id"`
|
||||
SentAt time.Time `db:"sent_at"`
|
||||
EditedAt time.Time `db:"edited_at"`
|
||||
SnippetCreated bool `db:"snippet_created"`
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -18,6 +18,6 @@ type Snippet struct {
|
|||
Url *string `db:"url"`
|
||||
AssetID *uuid.UUID `db:"asset_id"`
|
||||
|
||||
EditedOnWebsite bool `db:"edited_on_website"`
|
||||
EditedOnWebsite bool `db:"edited_on_website"` // TODO: Make this "ConnectedToDiscord"
|
||||
DiscordMessageID *string `db:"discord_message_id"`
|
||||
}
|
||||
|
|
|
|||
|
|
@ -73,3 +73,29 @@ func SleepContext(ctx context.Context, d time.Duration) error {
|
|||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
func IntSliceIndex(s []int, v int) int {
|
||||
for i, vv := range s {
|
||||
if vv == v {
|
||||
return i
|
||||
}
|
||||
}
|
||||
return -1
|
||||
}
|
||||
|
||||
func StringSliceIndex(s []string, v string) int {
|
||||
for i, vv := range s {
|
||||
if vv == v {
|
||||
return i
|
||||
}
|
||||
}
|
||||
return -1
|
||||
}
|
||||
|
||||
func IntSliceContains(s []int, v int) bool {
|
||||
return IntSliceIndex(s, v) > -1
|
||||
}
|
||||
|
||||
func StringSliceContains(s []string, v string) bool {
|
||||
return StringSliceIndex(s, v) > -1
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue