matrix-rust-sdk/matrix_sdk_base/examples/state_inspector.rs

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use std::{convert::TryFrom, fmt::Debug, io, sync::Arc};
use futures::executor::block_on;
use serde::Serialize;
use atty::Stream;
use clap::{App as Argparse, AppSettings as ArgParseSettings, Arg, ArgMatches, SubCommand};
use rustyline::{
completion::{Completer, Pair},
error::ReadlineError,
highlight::{Highlighter, MatchingBracketHighlighter},
hint::{Hinter, HistoryHinter},
validate::{MatchingBracketValidator, Validator},
CompletionType, Config, Context, EditMode, Editor, OutputStreamType,
};
use rustyline_derive::Helper;
use syntect::{
dumps::from_binary,
easy::HighlightLines,
highlighting::{Style, ThemeSet},
parsing::SyntaxSet,
util::{as_24_bit_terminal_escaped, LinesWithEndings},
};
use matrix_sdk_base::{
events::EventType,
identifiers::{RoomId, UserId},
RoomInfo, Store,
};
#[derive(Clone)]
struct Inspector {
store: Store,
printer: Printer,
}
#[derive(Helper)]
struct InspectorHelper {
store: Store,
_highlighter: MatchingBracketHighlighter,
_validator: MatchingBracketValidator,
_hinter: HistoryHinter,
}
impl InspectorHelper {
const EVENT_TYPES: &'static [&'static str] = &[
"m.room.aliases",
"m.room.avatar",
"m.room.canonical_alias",
"m.room.create",
"m.room.encryption",
"m.room.guest_access",
"m.room.history_visibility",
"m.room.join_rules",
"m.room.name",
"m.room.power_levels",
"m.room.tombstone",
"m.room.topic",
];
fn new(store: Store) -> Self {
Self {
store,
_highlighter: MatchingBracketHighlighter::new(),
_validator: MatchingBracketValidator::new(),
_hinter: HistoryHinter {},
}
}
fn complete_event_types(&self, arg: Option<&&str>) -> Vec<Pair> {
Self::EVENT_TYPES
.iter()
.map(|t| Pair {
display: t.to_string(),
replacement: format!("{} ", t),
})
.filter(|r| {
if let Some(arg) = arg {
r.replacement.starts_with(arg)
} else {
true
}
})
.collect()
}
fn complete_rooms(&self, arg: Option<&&str>) -> Vec<Pair> {
let rooms: Vec<RoomInfo> = block_on(async { self.store.get_room_infos().await.unwrap() });
rooms
.into_iter()
.map(|r| Pair {
display: r.room_id.to_string(),
replacement: format!("{} ", r.room_id.to_string()),
})
.filter(|r| {
if let Some(arg) = arg {
r.replacement.starts_with(arg)
} else {
true
}
})
.collect()
}
}
impl Completer for InspectorHelper {
type Candidate = Pair;
fn complete(
&self,
line: &str,
pos: usize,
_: &Context<'_>,
) -> Result<(usize, Vec<Pair>), ReadlineError> {
let args: Vec<&str> = line.split_ascii_whitespace().collect();
let commands = vec![
("get-state", "get a state event in the given room"),
(
"get-profiles",
"get all the stored profiles in the given room",
),
("list-rooms", "list all rooms"),
(
"get-members",
"get all the membership events in the given room",
),
]
.iter()
.map(|(r, d)| Pair {
display: format!("{} ({})", r, d),
replacement: format!("{} ", r.to_string()),
})
.collect();
if args.is_empty() {
Ok((pos, commands))
} else if args.len() == 1 {
if (args[0] == "get-state" || args[0] == "get-members" || args[0] == "get-profiles")
&& line.ends_with(' ')
{
Ok((args[0].len() + 1, self.complete_rooms(args.get(1))))
} else {
Ok((
0,
commands
.into_iter()
.filter(|c| c.replacement.starts_with(args[0]))
.collect(),
))
}
} else if args.len() == 2 {
if args[0] == "get-state" {
if line.ends_with(' ') {
Ok((
args[0].len() + args[1].len() + 2,
self.complete_event_types(args.get(2)),
))
} else {
Ok((args[0].len() + 1, self.complete_rooms(args.get(1))))
}
} else if args[0] == "get-members" || args[0] == "get-profiles" {
Ok((args[0].len() + 1, self.complete_rooms(args.get(1))))
} else {
Ok((pos, vec![]))
}
} else if args.len() == 3 {
if args[0] == "get-state" {
Ok((
args[0].len() + args[1].len() + 2,
self.complete_event_types(args.get(2)),
))
} else {
Ok((pos, vec![]))
}
} else {
Ok((pos, vec![]))
}
}
}
impl Hinter for InspectorHelper {
type Hint = String;
}
impl Highlighter for InspectorHelper {}
impl Validator for InspectorHelper {}
#[derive(Clone, Debug)]
struct Printer {
ps: Arc<SyntaxSet>,
ts: Arc<ThemeSet>,
json: bool,
color: bool,
}
impl Printer {
fn new(json: bool, color: bool) -> Self {
let syntax_set: SyntaxSet = from_binary(include_bytes!("./syntaxes.bin"));
let themes: ThemeSet = from_binary(include_bytes!("./themes.bin"));
Self {
ps: syntax_set.into(),
ts: themes.into(),
json,
color,
}
}
fn pretty_print_struct<T: Debug + Serialize>(&self, data: &T) {
let data = if self.json {
serde_json::to_string_pretty(data).expect("Can't serialize struct")
} else {
format!("{:#?}", data)
};
let syntax = if self.json {
self.ps
.find_syntax_by_extension("rs")
.expect("Can't find rust syntax extension")
} else {
self.ps
.find_syntax_by_extension("json")
.expect("Can't find json syntax extension")
};
if self.color {
let mut h = HighlightLines::new(syntax, &self.ts.themes["Forest Night"]);
for line in LinesWithEndings::from(&data) {
let ranges: Vec<(Style, &str)> = h.highlight(line, &self.ps);
let escaped = as_24_bit_terminal_escaped(&ranges[..], false);
print!("{}", escaped);
}
// Clear the formatting
println!("\x1b[0m");
} else {
println!("{}", data);
}
}
}
impl Inspector {
fn new(database_path: &str, json: bool, color: bool) -> Self {
let printer = Printer::new(json, color);
let (store, _) = Store::open_default(database_path, None).unwrap();
Self { store, printer }
}
async fn run(&self, matches: ArgMatches<'_>) {
match matches.subcommand() {
("get-profiles", args) => {
let args = args.expect("No args provided for get-state");
let room_id = RoomId::try_from(args.value_of("room-id").unwrap()).unwrap();
self.get_profiles(room_id).await;
}
("get-members", args) => {
let args = args.expect("No args provided for get-state");
let room_id = RoomId::try_from(args.value_of("room-id").unwrap()).unwrap();
self.get_members(room_id).await;
}
("list-rooms", _) => self.list_rooms().await,
("get-state", args) => {
let args = args.expect("No args provided for get-state");
let room_id = RoomId::try_from(args.value_of("room-id").unwrap()).unwrap();
let event_type = EventType::try_from(args.value_of("event-type").unwrap()).unwrap();
self.get_state(room_id, event_type).await;
}
_ => unreachable!(),
}
}
async fn list_rooms(&self) {
let rooms: Vec<RoomInfo> = self.store.get_room_infos().await.unwrap();
self.printer.pretty_print_struct(&rooms);
}
async fn get_profiles(&self, room_id: RoomId) {
let joined: Vec<UserId> = self.store.get_joined_user_ids(&room_id).await.unwrap();
for member in joined {
let event = self.store.get_profile(&room_id, &member).await.unwrap();
self.printer.pretty_print_struct(&event);
}
}
async fn get_members(&self, room_id: RoomId) {
let joined: Vec<UserId> = self.store.get_joined_user_ids(&room_id).await.unwrap();
for member in joined {
let event = self
.store
.get_member_event(&room_id, &member)
.await
.unwrap();
self.printer.pretty_print_struct(&event);
}
}
async fn get_state(&self, room_id: RoomId, event_type: EventType) {
self.printer.pretty_print_struct(
&self
.store
.get_state_event(&room_id, event_type, "")
.await
.unwrap(),
);
}
fn subcommands() -> Vec<Argparse<'static, 'static>> {
vec![
SubCommand::with_name("list-rooms"),
SubCommand::with_name("get-members").arg(
Arg::with_name("room-id").required(true).validator(|r| {
RoomId::try_from(r)
.map(|_| ())
.map_err(|_| "Invalid room id given".to_owned())
}),
),
SubCommand::with_name("get-profiles").arg(
Arg::with_name("room-id").required(true).validator(|r| {
RoomId::try_from(r)
.map(|_| ())
.map_err(|_| "Invalid room id given".to_owned())
}),
),
SubCommand::with_name("get-state")
.arg(Arg::with_name("room-id").required(true).validator(|r| {
RoomId::try_from(r)
.map(|_| ())
.map_err(|_| "Invalid room id given".to_owned())
}))
.arg(Arg::with_name("event-type").required(true).validator(|e| {
EventType::try_from(e)
.map(|_| ())
.map_err(|_| "Invalid event type".to_string())
})),
]
}
async fn parse_and_run(&self, input: &str) {
let argparse = Argparse::new("state-inspector")
.global_setting(ArgParseSettings::DisableHelpFlags)
.global_setting(ArgParseSettings::DisableVersion)
.global_setting(ArgParseSettings::VersionlessSubcommands)
.global_setting(ArgParseSettings::NoBinaryName)
.setting(ArgParseSettings::SubcommandRequiredElseHelp)
.subcommands(Inspector::subcommands());
match argparse.get_matches_from_safe(input.split_ascii_whitespace()) {
Ok(m) => {
self.run(m).await;
}
Err(e) => {
println!("{}", e);
}
}
}
}
fn main() -> io::Result<()> {
let argparse = Argparse::new("state-inspector")
.global_setting(ArgParseSettings::DisableVersion)
.global_setting(ArgParseSettings::VersionlessSubcommands)
.arg(Arg::with_name("database").required(true))
.arg(
Arg::with_name("json")
.long("json")
.help("set the output to raw json instead of Rust structs")
.global(true)
.takes_value(false),
)
.subcommands(Inspector::subcommands());
let matches = argparse.get_matches();
let database_path = matches.args.get("database").expect("No database path");
let json = matches.is_present("json");
2021-01-02 12:54:47 +00:00
let color = atty::is(Stream::Stdout);
let inspector = Inspector::new(&database_path.vals[0].to_string_lossy(), json, color);
if matches.subcommand.is_none() {
let config = Config::builder()
.history_ignore_space(true)
.completion_type(CompletionType::List)
.edit_mode(EditMode::Emacs)
.output_stream(OutputStreamType::Stdout)
.build();
let helper = InspectorHelper::new(inspector.store.clone());
let mut rl = Editor::<InspectorHelper>::with_config(config);
rl.set_helper(Some(helper));
while let Ok(input) = rl.readline(">> ") {
rl.add_history_entry(input.as_str());
block_on(inspector.parse_and_run(input.as_str()));
}
} else {
block_on(inspector.run(matches));
}
Ok(())
}