2020-10-15 16:52:08 +00:00
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use crate::context::Context;
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2020-10-17 15:47:17 +00:00
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use async_trait::async_trait;
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2020-10-16 12:40:25 +00:00
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use thiserror::Error;
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2020-04-21 06:09:43 +00:00
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2020-10-31 12:40:44 +00:00
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pub mod basic_rolling;
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pub mod cofd;
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2020-10-31 13:19:38 +00:00
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pub mod cthulhu;
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2020-10-31 12:40:44 +00:00
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pub mod misc;
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2020-04-21 03:15:13 +00:00
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pub mod parser;
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2020-10-31 12:40:44 +00:00
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pub mod variables;
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2020-04-21 03:15:13 +00:00
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2020-10-16 12:40:25 +00:00
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#[derive(Error, Debug)]
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pub enum CommandError {
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#[error("invalid command: {0}")]
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InvalidCommand(String),
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#[error("ignored command")]
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IgnoredCommand,
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}
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2020-04-21 06:07:03 +00:00
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pub struct Execution {
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plain: String,
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html: String,
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2020-04-21 03:15:13 +00:00
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}
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2020-04-21 06:07:03 +00:00
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impl Execution {
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pub fn plain(&self) -> &str {
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&self.plain
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2020-04-21 03:15:13 +00:00
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}
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2020-04-21 06:07:03 +00:00
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pub fn html(&self) -> &str {
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&self.html
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}
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}
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2020-10-17 15:47:17 +00:00
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#[async_trait]
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pub trait Command: Send + Sync {
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2020-11-03 20:14:15 +00:00
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async fn execute(&self, ctx: &Context<'_>) -> Execution;
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2020-08-21 21:49:22 +00:00
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fn name(&self) -> &'static str;
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2020-04-21 06:07:03 +00:00
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}
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2020-11-05 23:03:22 +00:00
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#[derive(Debug)]
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2020-10-15 16:52:08 +00:00
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pub struct CommandResult {
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pub plain: String,
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pub html: String,
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}
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/// Attempt to execute a command, and return the content that should
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/// go back to Matrix, if the command was executed (successfully or
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/// not). If a command is determined to be ignored, this function will
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/// return None, signifying that we should not send a response.
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2020-11-12 21:05:14 +00:00
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pub async fn execute_command(ctx: &Context<'_>) -> CommandResult {
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let res = parser::parse_command(&ctx.message_body);
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2020-10-15 16:52:08 +00:00
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let (plain, html) = match res {
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2020-10-17 15:47:17 +00:00
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Ok(cmd) => {
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let execution = cmd.execute(ctx).await;
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(execution.plain().into(), execution.html().into())
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}
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2020-10-15 16:52:08 +00:00
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Err(e) => {
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let message = format!("Error parsing command: {}", e);
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let html_message = format!("<p><strong>{}</strong></p>", message);
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(message, html_message)
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}
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};
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let plain = format!("{}\n{}", ctx.username, plain);
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let html = format!("<p>{}</p>\n{}", ctx.username, html);
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2020-11-12 21:05:14 +00:00
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CommandResult {
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2020-10-15 16:52:08 +00:00
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plain: plain,
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html: html,
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2020-11-12 21:05:14 +00:00
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}
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2020-04-21 03:15:13 +00:00
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}
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2020-08-21 21:49:22 +00:00
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#[cfg(test)]
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mod tests {
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use super::*;
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2020-11-12 21:05:14 +00:00
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#[tokio::test]
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async fn unrecognized_command() {
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let db = crate::db::Database::new_temp().unwrap();
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let ctx = Context::new(&db, "myroomid", "@testuser:example.com", "!notacommand");
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let result = execute_command(&ctx).await;
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assert!(result.plain.contains("Error"));
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2020-08-21 21:49:22 +00:00
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}
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}
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