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* drop.sql: New SQL script to drop all tablesRunxi Yu12 days1-0/+3
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* auth.go: Improve display of OAuth 2.0 errorsRunxi Yu12 days1-4/+17
| | | | Implements: https://todo.sr.ht/~runxiyu/cca/9
* config.go: Return errors instead of panicing on auth.fake issuesRunxi Yu12 days1-3/+11
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* {config,main}.go, cca.scfg.example: Settable static pathRunxi Yu12 days3-13/+8
| | | | | | | | | Because of the poor performance of using NGINX as a reverse proxy, I've added native TLS in commit 4a1a7af76408e956ebc343bf28960fdd00c00c58. Serving static files was already supported, but it was expected that people use a static web server to do so, so we didn't support a configurable static path. Now since reverse proxy setups are discouraged, it makes more sense to be better at serving static files.
* staff.html: Initial staff pageRunxi Yu12 days1-0/+149
| | | | | It's currently a copy of the student page with a few words changed and no checkboxes
* student.html, *.js: {main->student}.jsRunxi Yu12 days2-1/+1
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* student.html: {{ .user.Name }} instead of Home in titleRunxi Yu12 days1-1/+1
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* bench.go, main.js: Use an HTTPS URLRunxi Yu12 days2-2/+2
| | | | | This URL should be configurable in the JS at least, but I'm not sure how I should be filling out JS templates. I'll leave it hardcoded for now.
* {config,main}.go, cca.scfg.example: Support TLSRunxi Yu12 days3-8/+65
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* main.go, cca.scfg.example: Remove FastCGI supportRunxi Yu12 days2-9/+5
| | | | | | I would love to serve FastCGI but it is a huge pain to get WebSocket working, at least with NGINX. I don't think OpenBSD httpd would be better at this either.
* bench.go: Use more realistic connection numbers for nowRunxi Yu12 days1-4/+4
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* postgres_shell.sh: Delete as unnecessaryRunxi Yu13 days1-3/+0
| | | | Just use "psql cca"
* bench: Add a bit more stress (30000 connections, 30s wait)v0.1.2Runxi Yu13 days1-2/+2
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* README.md, iadocs/{cover*, crita*}: Update documentationRunxi Yu13 days3-39/+67
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* cca.scfg.example: Listen on 127.0.0.1:5555 only by defaultRunxi Yu13 days1-3/+3
| | | | | | I would have used IPv6, i.e. [::1]:5555, but our school network only has IPv4 and it'd be easier to keep everything on the same protocol, though this probably wouldn't matter for standard reverse proxy setups.
* style.css: Update color schemeRunxi Yu13 days1-22/+20
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* {config,ws}.go, cca.scfg.example: Allow same-user fake authRunxi Yu13 days3-15/+30
| | | | This is useful for testing whether connection collisions work well.
* ws.go: Don't log chanPool changesRunxi Yu13 days1-2/+0
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* schema.sql: users.expr should be BIGINTRunxi Yu13 days1-1/+1
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* {ws,wsm}.go: Handle context cancellationsRunxi Yu13 days2-5/+94
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* student.html: Connection closed could be cause by a login elsewhereRunxi Yu13 days1-0/+3
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* lint.sh: Disable nonamedreturnsRunxi Yu13 days1-1/+1
| | | | I used named returns to inspect return values (especially error values)
* ws.go: Fix memory leak introduced in last commitRunxi Yu13 days1-0/+7
| | | | | | The entry is deleted from cancelPool if and only if cancelPool's cancel function for the user is equal to &newCancel. This compare-and-delete works because of locking.
* ws.go: Fix first race condition in cancelPool managementRunxi Yu13 days1-13/+2
| | | | | | | | | | | | | | | Cancel occurs in async. When the cancelled function exits, it deletes the entry in cancelPool, and could replace the new routine's cancel function, which is of course undesirable. Therefore this commit causes handleConn to stop deleting from cancelPool entirely. Note that this introduces a memory leak at the size of context.CancelFunc per user, because we are never deleting from cancelPool. This does not actually solve the race condition documented in fc911928 where two new connections start sufficiently close to each other.
* {main,ws,wsm}.go: Attempt to cancel old sessionsRunxi Yu13 days3-23/+87
| | | | | | | | | | | | | | | | | | | When beginning to handle a WebSocket connection, we shall create a new context, with the request context as its parent. We use the new context for everything from now on, except for reporting error messages, which is handled by creating a reportError function in a closure in makeReportError and passing it along to command-handling functions. Note that if one user attempts to rapidly launch WebSocket connections, there might still be a race condition where the old connection hasn't been completely established yet (i.e. an entry hasn't been added to cancelPool) and the new connection isn't able to cancel the old connection. I'm a bit tired to think of a solution now but it could probably be solved by moving the cancellation registration and cancelling sooner during the initial handshake. Note that more parts of the event loop needs to select from ctx.Done (from newCtx) for this to work reliably.
* README.md, student.html: Correct spellingRunxi Yu13 days2-2/+2
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* README.md: Remove CI badgesRunxi Yu14 days1-6/+0
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* ws.go: Update comment on disallowed charactersRunxi Yu14 days1-5/+4
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* student.html: Update error messages to be a bit more friendlyRunxi Yu2024-10-021-6/+15
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* index.go, *.html: index->student, index_login->loginRunxi Yu2024-10-023-5/+5
| | | | | | | The new names are a bit more descriptive in what each do, and I intend to add an "admin" template in the future. This has no user-facing effects.
* index{,_login}.html: Improve accessibilityRunxi Yu2024-10-022-2/+4
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* main.js: Un-disable already-chosen courses during HELLO/HIRunxi Yu2024-10-021-0/+1
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* index.html, style.css: Remove ID column because nobody caresRunxi Yu2024-10-022-5/+3
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* main.js: Unset indeterminate when receiving NRunxi Yu2024-10-021-0/+1
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* main.js: Set checkbox.indeterminate = true when uncheckingRunxi Yu2024-10-021-1/+1
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* tcourse.sql: Add 1000 of each course for testingRunxi Yu2024-10-021-5/+5
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* bench: Don't log errors for nowRunxi Yu2024-10-021-3/+3
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* wsm.go, main.js: Use M for number, N for deselectRunxi Yu2024-10-022-3/+6
| | | | | | | Previously both commands used N, and deselection wasn't really implemented on the JavaScript side. It worked and didn't throw an exception but it's technically wrong and the user could see an empty number field for a split second.
* Makefile: Add wsm.go to the source file listRunxi Yu2024-10-021-1/+1
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* bench: Attempt to choose random coursesRunxi Yu2024-10-021-4/+18
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* bench: Add initial benchmarking suiteRunxi Yu2024-10-025-0/+106
| | | | Currently only connects and creates a fake user
* {auth,utils,ws}.go: randomBytes -> randomStringRunxi Yu2024-10-023-4/+4
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* {config,ws}.go, cca.scfg.example: Add fake auth supportRunxi Yu2024-10-025-16/+72
| | | | | Fake authentication is useful when benchmarking the server with an external program without going insane with the OpenID Connect forms.
* style.css: message-box border 1pxRunxi Yu2024-10-021-1/+1
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* {auth,db,wsm}.go: Make 23505 (uniqueness violation) a constantRunxi Yu2024-10-013-2/+4
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* main.js: Only try to mark courses as checked if mar[1] !== ""v0.1.1Runxi Yu2024-10-011-3/+5
| | | | | Otherwise, users may get something like "TypeError: Cannot set properties of null (setting 'checked')"
* main.js: Everything should be after DOMContentLoadedRunxi Yu2024-10-011-99/+101
| | | | | | | This is technically a race condition, and users with extremely slow computers and very bad luck might get exceptions from this. I think.
* style.css: Make light header background lighterRunxi Yu2024-10-011-1/+1
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* style.css: Remove thick table borderRunxi Yu2024-10-011-1/+1
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* wsm.go, main.js: Display the user's selected courses on first runv0.1.0Runxi Yu2024-10-012-2/+22
| | | | | It's done in the WebSocket routines rather than in the template maker because it's relatively easier to write the logic this way.
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