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* {config,main}.go: Enhance configuration file processingRunxi Yu2024-10-052-8/+124
| | | | Implements: https://todo.sr.ht/~runxiyu/cca/5
* bench.go: ReformatRunxi Yu2024-10-051-2/+2
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* bench.go: Separate connection stage from selection stagev0.1.3Runxi Yu2024-10-051-2/+10
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* bench.go: More realistic benchmark for one course onlyRunxi Yu2024-10-051-9/+18
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* Makefile: BSD Make also supports wildcards in targetsRunxi Yu2024-10-051-1/+1
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* Makefile: Add sem.go to source file listRunxi Yu2024-10-051-1/+1
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* {config,ws}.go, cca.scfg.example: Add perf.course_update_intervalRunxi Yu2024-10-053-6/+14
| | | | | | This causes a drastic increase in performance. References: https://todo.sr.ht/~runxiyu/cca/7
* {courses,wsm}.go: Use in-memory structure to fetch cgroup, not SQLRunxi Yu2024-10-052-26/+18
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* {config,ws}.go, cca.scfg.example: Remove chanPool/SendQRunxi Yu2024-10-053-59/+0
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* ws.go: &usemT{} //exhaustruct:ignoreRunxi Yu2024-10-051-1/+1
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* ws.go: Check error of populateUserCourseGroupsRunxi Yu2024-10-051-1/+4
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* wsm.go: Omit comparison to bool constantRunxi Yu2024-10-051-1/+1
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* wsm.go: Report error when course doesn't existRunxi Yu2024-10-051-0/+8
| | | | | Luckily we encounter a database error before we have the chance to dereference a null pointer. But it's still good practice to check.
* {courses,sem,ws,wsm}.go: Second step towards an efficient state propagatorRunxi Yu2024-10-054-16/+24
| | | | References: https://todo.sr.ht/~runxiyu/cca/7
* {courses,sem,ws}.go: First step towards an efficient state propagatorRunxi Yu2024-10-053-6/+110
| | | | References: https://todo.sr.ht/~runxiyu/cca/7
* go.sum: go mod tidy (removing old checksums)Runxi Yu2024-10-051-6/+0
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* ws.go: Index chanPool by userID, rather than session cookieRunxi Yu2024-10-051-5/+2
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* {main,utils,ws}.go: Initialize cancelPool directly tooRunxi Yu2024-10-053-25/+1
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* Bump dependenciesRunxi Yu2024-10-052-3/+9
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* {main,ws}.go: Initialize chanPool directly instead of setupChanPool()Runxi Yu2024-10-052-22/+1
| | | | | | It is possible to use var chanPool = make(map[string](*chan string)) directly during declaration, even if it's a global variable. There is no need to call a function to initialize it.
* courses.go: ReformatRunxi Yu2024-10-051-1/+1
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* {courses,wsm}.go: Add getCourseByIDRunxi Yu2024-10-052-10/+8
| | | | This also deduplicates some code.
* {courses,wsm}.go: Add (*courseT).decrementSelectedAndPropagateRunxi Yu2024-10-052-24/+15
| | | | This is being done quite a few times, so let's make it a function.
* {courses,ws,wsm}.go: Update userCourseGroups during choose/unchooseRunxi Yu2024-10-053-12/+51
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* config.go: Emit warning when fake auth is enabledRunxi Yu2024-10-051-0/+2
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* bench.go: Don't close request bodyRunxi Yu2024-10-051-6/+0
| | | | | | The WebSocket library closes it for us (which is not behavior that I like, but fine). Closing it again causes segmentation faults as Body becomes a null pointer or something like that.
* {courses,ws}.go: Populate userCourseGroups in a separate functionRunxi Yu2024-10-052-32/+35
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* {courses,ws}.go: Populate userCourseGroups for each connectionRunxi Yu2024-10-042-5/+63
| | | | | | | | | | | | | | | | | | It is way too expensive to query the database every time we need to check whether a user has chosen a course in a group. Since we can (hopefully) guarantee that there is only one usable connection for any given moment and user, we could store this data along with the connection as a local variable in handleConn, which would be eligible for garbage collection when handleConn exits. Here we create the data structures that globally represent courseTypes and courseGroups, and during the initial stages of handleConn, perform database queries to populate userCourseGroups with the groups that the user has already chosen. Note that the HELLO command handler does similar database queries, and as per the TODO listed in the comments, should be moved up here for efficiency. (HELLO also serves as some sort of an initial connection check; this should probably be replaced with WebSocket's native pings.)
* courses.go, schema.sql: Validate course{Type,Group} in server, not SQLRunxi Yu2024-10-044-30/+45
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* *.sql: New schema with ctypes and cgroupsRunxi Yu2024-10-043-18/+39
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* drop.sql: New SQL script to drop all tablesRunxi Yu2024-10-041-0/+3
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* auth.go: Improve display of OAuth 2.0 errorsRunxi Yu2024-10-041-4/+17
| | | | Implements: https://todo.sr.ht/~runxiyu/cca/9
* config.go: Return errors instead of panicing on auth.fake issuesRunxi Yu2024-10-041-3/+11
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* {config,main}.go, cca.scfg.example: Settable static pathRunxi Yu2024-10-043-13/+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 Yu2024-10-041-0/+149
| | | | | It's currently a copy of the student page with a few words changed and no checkboxes
* student.html, *.js: {main->student}.jsRunxi Yu2024-10-042-1/+1
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* student.html: {{ .user.Name }} instead of Home in titleRunxi Yu2024-10-041-1/+1
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* bench.go, main.js: Use an HTTPS URLRunxi Yu2024-10-042-2/+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 Yu2024-10-043-8/+65
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* main.go, cca.scfg.example: Remove FastCGI supportRunxi Yu2024-10-042-9/+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 Yu2024-10-041-4/+4
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* postgres_shell.sh: Delete as unnecessaryRunxi Yu2024-10-041-3/+0
| | | | Just use "psql cca"
* bench: Add a bit more stress (30000 connections, 30s wait)v0.1.2Runxi Yu2024-10-031-2/+2
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* README.md, iadocs/{cover*, crita*}: Update documentationRunxi Yu2024-10-033-39/+67
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* cca.scfg.example: Listen on 127.0.0.1:5555 only by defaultRunxi Yu2024-10-031-3/+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 Yu2024-10-031-22/+20
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* {config,ws}.go, cca.scfg.example: Allow same-user fake authRunxi Yu2024-10-033-15/+30
| | | | This is useful for testing whether connection collisions work well.
* ws.go: Don't log chanPool changesRunxi Yu2024-10-031-2/+0
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* schema.sql: users.expr should be BIGINTRunxi Yu2024-10-031-1/+1
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* {ws,wsm}.go: Handle context cancellationsRunxi Yu2024-10-032-5/+94
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