Deuxfleurs/aerogramme
15
0
Fork 1
Code Issues 33 Pull requests 1 Projects 11 Releases 5 Wiki Activity

Implement imap-flow #34

Merged
quentin merged 18 commits from refactor/imap-flow into main 2024-01-02 22:44:29 +00:00
Conversation 0 Commits 18 Files changed 31 +2415 -1647
31 changed files with 2415 additions and 1647 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1373
Cargo.lock generated
View file

File diff suppressed because it is too large Load diff

81
Cargo.toml
View file

@ -7,48 +7,67 @@ license = "AGPL-3.0"
description = "Encrypted mail storage over Garage" description = "Encrypted mail storage over Garage"
[dependencies] [dependencies]
aws-config = { version = "1.1.1", features = ["behavior-version-latest"] } # async runtime
aws-sdk-s3 = "1.9.0"
anyhow = "1.0.28"
argon2 = "0.5"
async-trait = "0.1"
backtrace = "0.3"
base64 = "0.21"
clap = { version = "3.1.18", features = ["derive", "env"] }
duplexify = "1.1.0"
eml-codec = { git = "https://git.deuxfleurs.fr/Deuxfleurs/eml-codec.git", branch = "main" }
hex = "0.4"
futures = "0.3"
im = "15"
itertools = "0.10"
lazy_static = "1.4"
ldap3 = { version = "0.10", default-features = false, features = ["tls-rustls"] }
log = "0.4"
hyper-rustls = { version = "0.24", features = ["http2"] }
nix = { version = "0.27", features = ["signal"] }
serde = "1.0.137"
rand = "0.8.5"
rmp-serde = "0.15"
rpassword = "7.0"
sodiumoxide = "0.2"
tokio = { version = "1.18", default-features = false, features = ["rt", "rt-multi-thread", "io-util", "net", "time", "macros", "sync", "signal", "fs"] } tokio = { version = "1.18", default-features = false, features = ["rt", "rt-multi-thread", "io-util", "net", "time", "macros", "sync", "signal", "fs"] }
tokio-util = { version = "0.7", features = [ "compat" ] } tokio-util = { version = "0.7", features = [ "compat" ] }
toml = "0.5" futures = "0.3"
zstd = { version = "0.9", default-features = false }
# debug
log = "0.4"
backtrace = "0.3"
tracing-subscriber = "0.3" tracing-subscriber = "0.3"
tracing = "0.1" tracing = "0.1"
tower = "0.4"
imap-codec = { git = "https://github.com/superboum/imap-codec.git", branch = "v0.5.x" } # language extensions
lazy_static = "1.4"
duplexify = "1.1.0"
im = "15"
anyhow = "1.0.28"
async-trait = "0.1"
itertools = "0.10"
chrono = { version = "0.4", default-features = false, features = ["alloc"] } chrono = { version = "0.4", default-features = false, features = ["alloc"] }
# process related
nix = { version = "0.27", features = ["signal"] }
clap = { version = "3.1.18", features = ["derive", "env"] }
# serialization
serde = "1.0.137"
rmp-serde = "0.15"
toml = "0.5"
base64 = "0.21"
hex = "0.4"
zstd = { version = "0.9", default-features = false }
# cryptography & security
sodiumoxide = "0.2"
argon2 = "0.5"
rand = "0.8.5"
hyper-rustls = { version = "0.24", features = ["http2"] }
rpassword = "7.0"
# login
ldap3 = { version = "0.10", default-features = false, features = ["tls-rustls"] }
# storage
k2v-client = { git = "https://git.deuxfleurs.fr/Deuxfleurs/garage.git", tag = "v0.9.0" } k2v-client = { git = "https://git.deuxfleurs.fr/Deuxfleurs/garage.git", tag = "v0.9.0" }
boitalettres = { git = "https://git.deuxfleurs.fr/quentin/boitalettres.git", branch = "expose-mydatetime" } aws-config = { version = "1.1.1", features = ["behavior-version-latest"] }
aws-sdk-s3 = "1.9.0"
# email protocols
eml-codec = { git = "https://git.deuxfleurs.fr/Deuxfleurs/eml-codec.git", branch = "main" }
smtp-message = { git = "http://github.com/Alexis211/kannader", branch = "feature/lmtp" } smtp-message = { git = "http://github.com/Alexis211/kannader", branch = "feature/lmtp" }
smtp-server = { git = "http://github.com/Alexis211/kannader", branch = "feature/lmtp" } smtp-server = { git = "http://github.com/Alexis211/kannader", branch = "feature/lmtp" }
imap-codec = { version = "1.0.0", features = ["quirk_crlf_relaxed", "bounded-static"] }
#k2v-client = { path = "../garage/src/k2v-client" } imap-flow = { git = "https://github.com/duesee/imap-flow.git", rev = "e45ce7bb6ab6bda3c71a0c7b05e9b558a5902e90" }
[dev-dependencies] [dev-dependencies]
[patch.crates-io]
imap-types = { git = "https://github.com/duesee/imap-codec", branch = "v2" }
imap-codec = { git = "https://github.com/duesee/imap-codec", branch = "v2" }
[[test]]
name = "imap_features"
path = "tests/imap_features.rs"
harness = false

5
src/bayou.rs
View file

@ -450,10 +450,7 @@ impl K2vWatch {
) { ) {
let mut row = match Weak::upgrade(&self_weak) { let mut row = match Weak::upgrade(&self_weak) {
Some(this) => this.target.clone(), Some(this) => this.target.clone(),
None => { None => return,
error!("can't start loop");
return;
}
}; };
while let Some(this) = Weak::upgrade(&self_weak) { while let Some(this) = Weak::upgrade(&self_weak) {

1
src/config.rs
View file

@ -26,6 +26,7 @@ pub struct ProviderConfig {
#[derive(Serialize, Deserialize, Debug, Clone)] #[derive(Serialize, Deserialize, Debug, Clone)]
#[serde(tag = "user_driver")] #[serde(tag = "user_driver")]
pub enum UserManagement { pub enum UserManagement {
Demo,
Static(LoginStaticConfig), Static(LoginStaticConfig),
Ldap(LoginLdapConfig), Ldap(LoginLdapConfig),
} }

174
src/future_rest_admin_api.txt
View file

@ -1,174 +0,0 @@
Command::FirstLogin {
creds,
user_secrets,
} => {
let creds = make_storage_creds(creds);
let user_secrets = make_user_secrets(user_secrets);
println!("Please enter your password for key decryption.");
println!("If you are using LDAP login, this must be your LDAP password.");
println!("If you are using the static login provider, enter any password, and this will also become your password for local IMAP access.");
let password = rpassword::prompt_password("Enter password: ")?;
let password_confirm = rpassword::prompt_password("Confirm password: ")?;
if password != password_confirm {
bail!("Passwords don't match.");
}
CryptoKeys::init(&creds, &user_secrets, &password).await?;
println!("");
println!("Cryptographic key setup is complete.");
println!("");
println!("If you are using the static login provider, add the following section to your .toml configuration file:");
println!("");
dump_config(&password, &creds);
}
Command::InitializeLocalKeys { creds } => {
let creds = make_storage_creds(creds);
println!("Please enter a password for local IMAP access.");
println!("This password is not used for key decryption, your keys will be printed below (do not lose them!)");
println!(
"If you plan on using LDAP login, stop right here and use `first-login` instead"
);
let password = rpassword::prompt_password("Enter password: ")?;
let password_confirm = rpassword::prompt_password("Confirm password: ")?;
if password != password_confirm {
bail!("Passwords don't match.");
}
let master = gen_key();
let (_, secret) = gen_keypair();
let keys = CryptoKeys::init_without_password(&creds, &master, &secret).await?;
println!("");
println!("Cryptographic key setup is complete.");
println!("");
println!("Add the following section to your .toml configuration file:");
println!("");
dump_config(&password, &creds);
dump_keys(&keys);
}
Command::AddPassword {
creds,
user_secrets,
gen,
} => {
let creds = make_storage_creds(creds);
let user_secrets = make_user_secrets(user_secrets);
let existing_password =
rpassword::prompt_password("Enter existing password to decrypt keys: ")?;
let new_password = if gen {
let password = base64::encode_config(
&u128::to_be_bytes(thread_rng().gen())[..10],
base64::URL_SAFE_NO_PAD,
);
println!("Your new password: {}", password);
println!("Keep it safe!");
password
} else {
let password = rpassword::prompt_password("Enter new password: ")?;
let password_confirm = rpassword::prompt_password("Confirm new password: ")?;
if password != password_confirm {
bail!("Passwords don't match.");
}
password
};
let keys = CryptoKeys::open(&creds, &user_secrets, &existing_password).await?;
keys.add_password(&creds, &user_secrets, &new_password)
.await?;
println!("");
println!("New password added successfully.");
}
Command::DeletePassword {
creds,
user_secrets,
allow_delete_all,
} => {
let creds = make_storage_creds(creds);
let user_secrets = make_user_secrets(user_secrets);
let existing_password = rpassword::prompt_password("Enter password to delete: ")?;
let keys = match allow_delete_all {
true => Some(CryptoKeys::open(&creds, &user_secrets, &existing_password).await?),
false => None,
};
CryptoKeys::delete_password(&creds, &existing_password, allow_delete_all).await?;
println!("");
println!("Password was deleted successfully.");
if let Some(keys) = keys {
println!("As a reminder, here are your cryptographic keys:");
dump_keys(&keys);
}
}
Command::ShowKeys {
creds,
user_secrets,
} => {
let creds = make_storage_creds(creds);
let user_secrets = make_user_secrets(user_secrets);
let existing_password = rpassword::prompt_password("Enter key decryption password: ")?;
let keys = CryptoKeys::open(&creds, &user_secrets, &existing_password).await?;
dump_keys(&keys);
}
}
Ok(())
}
fn make_storage_creds(c: StorageCredsArgs) -> StorageCredentials {
let s3_region = Region {
name: c.region.clone(),
endpoint: c.s3_endpoint,
};
let k2v_region = Region {
name: c.region,
endpoint: c.k2v_endpoint,
};
StorageCredentials {
k2v_region,
s3_region,
aws_access_key_id: c.aws_access_key_id,
aws_secret_access_key: c.aws_secret_access_key,
bucket: c.bucket,
}
}
fn make_user_secrets(c: UserSecretsArgs) -> UserSecrets {
UserSecrets {
user_secret: c.user_secret,
alternate_user_secrets: c
.alternate_user_secrets
.split(',')
.map(|x| x.trim())
.filter(|x| !x.is_empty())
.map(|x| x.to_string())
.collect(),
}
}
fn dump_config(password: &str, creds: &StorageCredentials) {
println!("[login_static.users.<username>]");
println!(
"password = \"{}\"",
hash_password(password).expect("unable to hash password")
);
println!("aws_access_key_id = \"{}\"", creds.aws_access_key_id);
println!(
"aws_secret_access_key = \"{}\"",
creds.aws_secret_access_key
);
}
fn dump_keys(keys: &CryptoKeys) {
println!("master_key = \"{}\"", base64::encode(&keys.master));
println!("secret_key = \"{}\"", base64::encode(&keys.secret));
}

91
src/imap/command/anonymous.rs
View file

@ -1,92 +1,77 @@
use anyhow::{Error, Result}; use anyhow::Result;
use boitalettres::proto::{res::body::Data as Body, Request, Response}; use imap_codec::imap_types::command::{Command, CommandBody};
use imap_codec::types::command::CommandBody; use imap_codec::imap_types::core::AString;
use imap_codec::types::core::AString; use imap_codec::imap_types::secret::Secret;
use imap_codec::types::response::{Capability, Data, Status};
use crate::imap::command::anystate;
use crate::imap::flow; use crate::imap::flow;
use crate::imap::response::Response;
use crate::login::ArcLoginProvider; use crate::login::ArcLoginProvider;
use crate::mail::user::User; use crate::mail::user::User;
//--- dispatching //--- dispatching
pub struct AnonymousContext<'a> { pub struct AnonymousContext<'a> {
pub req: &'a Request, pub req: &'a Command<'static>,
pub login_provider: Option<&'a ArcLoginProvider>, pub login_provider: &'a ArcLoginProvider,
} }
pub async fn dispatch(ctx: AnonymousContext<'_>) -> Result<(Response, flow::Transition)> { pub async fn dispatch(ctx: AnonymousContext<'_>) -> Result<(Response<'static>, flow::Transition)> {
match &ctx.req.command.body { match &ctx.req.body {
CommandBody::Noop => Ok((Response::ok("Noop completed.")?, flow::Transition::None)), // Any State
CommandBody::Capability => ctx.capability().await, CommandBody::Noop => anystate::noop_nothing(ctx.req.tag.clone()),
CommandBody::Logout => ctx.logout().await, CommandBody::Capability => anystate::capability(ctx.req.tag.clone()),
CommandBody::Logout => anystate::logout(),
// Specific to anonymous context (3 commands)
CommandBody::Login { username, password } => ctx.login(username, password).await, CommandBody::Login { username, password } => ctx.login(username, password).await,
_ => Ok((Response::no("Command unavailable")?, flow::Transition::None)), CommandBody::Authenticate { .. } => {
anystate::not_implemented(ctx.req.tag.clone(), "authenticate")
}
//StartTLS is not implemented for now, we will probably go full TLS.
// Collect other commands
_ => anystate::wrong_state(ctx.req.tag.clone()),
} }
} }
//--- Command controllers, private //--- Command controllers, private
impl<'a> AnonymousContext<'a> { impl<'a> AnonymousContext<'a> {
async fn capability(self) -> Result<(Response, flow::Transition)> {
let capabilities = vec![Capability::Imap4Rev1, Capability::Idle];
let res = Response::ok("Server capabilities")?.with_body(Data::Capability(capabilities));
Ok((res, flow::Transition::None))
}
async fn login( async fn login(
self, self,
username: &AString, username: &AString<'a>,
password: &AString, password: &Secret<AString<'a>>,
) -> Result<(Response, flow::Transition)> { ) -> Result<(Response<'static>, flow::Transition)> {
let (u, p) = ( let (u, p) = (
String::try_from(username.clone())?, std::str::from_utf8(username.as_ref())?,
String::try_from(password.clone())?, std::str::from_utf8(password.declassify().as_ref())?,
); );
tracing::info!(user = %u, "command.login"); tracing::info!(user = %u, "command.login");
let login_provider = match &self.login_provider { let creds = match self.login_provider.login(&u, &p).await {
Some(lp) => lp,
None => {
return Ok((
Response::no("Login command not available (already logged in)")?,
flow::Transition::None,
))
}
};
let creds = match login_provider.login(&u, &p).await {
Err(e) => { Err(e) => {
tracing::debug!(error=%e, "authentication failed"); tracing::debug!(error=%e, "authentication failed");
return Ok(( return Ok((
Response::no("Authentication failed")?, Response::build()
.to_req(self.req)
.message("Authentication failed")
.no()?,
flow::Transition::None, flow::Transition::None,
)); ));
} }
Ok(c) => c, Ok(c) => c,
}; };
let user = User::new(u.clone(), creds).await?; let user = User::new(u.to_string(), creds).await?;
tracing::info!(username=%u, "connected"); tracing::info!(username=%u, "connected");
Ok(( Ok((
Response::ok("Completed")?, Response::build()
.to_req(self.req)
.message("Completed")
.ok()?,
flow::Transition::Authenticate(user), flow::Transition::Authenticate(user),
)) ))
} }
// C: 10 logout
// S: * BYE Logging out
// S: 10 OK Logout completed.
async fn logout(self) -> Result<(Response, flow::Transition)> {
// @FIXME we should implement From<Vec<Status>> and From<Vec<ImapStatus>> in
// boitalettres/src/proto/res/body.rs
Ok((
Response::ok("Logout completed")?.with_body(vec![Body::Status(
Status::bye(None, "Logging out")
.map_err(|e| Error::msg(e).context("Unable to generate IMAP status"))?,
)]),
flow::Transition::Logout,
))
}
} }

52
src/imap/command/anystate.rs Normal file
View file

@ -0,0 +1,52 @@
use anyhow::Result;
use imap_codec::imap_types::core::{NonEmptyVec, Tag};
use imap_codec::imap_types::response::{Capability, Data};
use crate::imap::flow;
use crate::imap::response::Response;
pub(crate) fn capability(tag: Tag<'static>) -> Result<(Response<'static>, flow::Transition)> {
let capabilities: NonEmptyVec<Capability> =
(vec![Capability::Imap4Rev1, Capability::Idle]).try_into()?;
let res = Response::build()
.tag(tag)
.message("Server capabilities")
.data(Data::Capability(capabilities))
.ok()?;
Ok((res, flow::Transition::None))
}
pub(crate) fn noop_nothing(tag: Tag<'static>) -> Result<(Response<'static>, flow::Transition)> {
Ok((
Response::build().tag(tag).message("Noop completed.").ok()?,
flow::Transition::None,
))
}
pub(crate) fn logout() -> Result<(Response<'static>, flow::Transition)> {
Ok((Response::bye()?, flow::Transition::Logout))
}
pub(crate) fn not_implemented<'a>(
tag: Tag<'a>,
what: &str,
) -> Result<(Response<'a>, flow::Transition)> {
Ok((
Response::build()
.tag(tag)
.message(format!("Command not implemented {}", what))
.bad()?,
flow::Transition::None,
))
}
pub(crate) fn wrong_state(tag: Tag<'static>) -> Result<(Response<'static>, flow::Transition)> {
Ok((
Response::build()
.tag(tag)
.message("Command not authorized in this state")
.bad()?,
flow::Transition::None,
))
}

378
src/imap/command/authenticated.rs
View file

@ -2,37 +2,42 @@ use std::collections::BTreeMap;
use std::sync::Arc; use std::sync::Arc;
use anyhow::{anyhow, bail, Result}; use anyhow::{anyhow, bail, Result};
use boitalettres::proto::res::body::Data as Body; use imap_codec::imap_types::command::{Command, CommandBody};
use boitalettres::proto::{Request, Response}; use imap_codec::imap_types::core::{Atom, Literal, QuotedChar};
use imap_codec::types::command::{CommandBody, StatusAttribute}; use imap_codec::imap_types::datetime::DateTime;
use imap_codec::types::core::NonZeroBytes; use imap_codec::imap_types::flag::{Flag, FlagNameAttribute};
use imap_codec::types::datetime::MyDateTime; use imap_codec::imap_types::mailbox::{ListMailbox, Mailbox as MailboxCodec};
use imap_codec::types::flag::{Flag, FlagNameAttribute}; use imap_codec::imap_types::response::{Code, CodeOther, Data};
use imap_codec::types::mailbox::{ListMailbox, Mailbox as MailboxCodec}; use imap_codec::imap_types::status::{StatusDataItem, StatusDataItemName};
use imap_codec::types::response::{Code, Data, StatusAttributeValue};
use crate::imap::command::anonymous; use crate::imap::command::{anystate, MailboxName};
use crate::imap::flow; use crate::imap::flow;
use crate::imap::mailbox_view::MailboxView; use crate::imap::mailbox_view::MailboxView;
use crate::imap::response::Response;
use crate::mail::mailbox::Mailbox; use crate::mail::mailbox::Mailbox;
use crate::mail::uidindex::*; use crate::mail::uidindex::*;
use crate::mail::user::{User, INBOX, MAILBOX_HIERARCHY_DELIMITER}; use crate::mail::user::{User, MAILBOX_HIERARCHY_DELIMITER as MBX_HIER_DELIM_RAW};
use crate::mail::IMF; use crate::mail::IMF;
pub struct AuthenticatedContext<'a> { pub struct AuthenticatedContext<'a> {
pub req: &'a Request, pub req: &'a Command<'static>,
pub user: &'a Arc<User>, pub user: &'a Arc<User>,
} }
pub async fn dispatch(ctx: AuthenticatedContext<'_>) -> Result<(Response, flow::Transition)> { pub async fn dispatch<'a>(
match &ctx.req.command.body { ctx: AuthenticatedContext<'a>,
) -> Result<(Response<'static>, flow::Transition)> {
match &ctx.req.body {
// Any state
CommandBody::Noop => anystate::noop_nothing(ctx.req.tag.clone()),
CommandBody::Capability => anystate::capability(ctx.req.tag.clone()),
CommandBody::Logout => anystate::logout(),
// Specific to this state (11 commands)
CommandBody::Create { mailbox } => ctx.create(mailbox).await, CommandBody::Create { mailbox } => ctx.create(mailbox).await,
CommandBody::Delete { mailbox } => ctx.delete(mailbox).await, CommandBody::Delete { mailbox } => ctx.delete(mailbox).await,
CommandBody::Rename { CommandBody::Rename { from, to } => ctx.rename(from, to).await,
mailbox,
new_mailbox,
} => ctx.rename(mailbox, new_mailbox).await,
CommandBody::Lsub { CommandBody::Lsub {
reference, reference,
mailbox_wildcard, mailbox_wildcard,
@ -43,8 +48,8 @@ pub async fn dispatch(ctx: AuthenticatedContext<'_>) -> Result<(Response, flow::
} => ctx.list(reference, mailbox_wildcard, false).await, } => ctx.list(reference, mailbox_wildcard, false).await,
CommandBody::Status { CommandBody::Status {
mailbox, mailbox,
attributes, item_names,
} => ctx.status(mailbox, attributes).await, } => ctx.status(mailbox, item_names).await,
CommandBody::Subscribe { mailbox } => ctx.subscribe(mailbox).await, CommandBody::Subscribe { mailbox } => ctx.subscribe(mailbox).await,
CommandBody::Unsubscribe { mailbox } => ctx.unsubscribe(mailbox).await, CommandBody::Unsubscribe { mailbox } => ctx.unsubscribe(mailbox).await,
CommandBody::Select { mailbox } => ctx.select(mailbox).await, CommandBody::Select { mailbox } => ctx.select(mailbox).await,
@ -55,90 +60,148 @@ pub async fn dispatch(ctx: AuthenticatedContext<'_>) -> Result<(Response, flow::
date, date,
message, message,
} => ctx.append(mailbox, flags, date, message).await, } => ctx.append(mailbox, flags, date, message).await,
_ => {
let ctx = anonymous::AnonymousContext { // Collect other commands
req: ctx.req, _ => anystate::wrong_state(ctx.req.tag.clone()),
login_provider: None,
};
anonymous::dispatch(ctx).await
}
} }
} }
// --- PRIVATE --- // --- PRIVATE ---
impl<'a> AuthenticatedContext<'a> { impl<'a> AuthenticatedContext<'a> {
async fn create(self, mailbox: &MailboxCodec) -> Result<(Response, flow::Transition)> { async fn create(
let name = String::try_from(mailbox.clone())?; self,
mailbox: &MailboxCodec<'a>,
if name == INBOX { ) -> Result<(Response<'static>, flow::Transition)> {
let name = match mailbox {
MailboxCodec::Inbox => {
return Ok(( return Ok((
Response::bad("Cannot create INBOX")?, Response::build()
.to_req(self.req)
.message("Cannot create INBOX")
.bad()?,
flow::Transition::None, flow::Transition::None,
)); ));
} }
MailboxCodec::Other(aname) => std::str::from_utf8(aname.as_ref())?,
};
match self.user.create_mailbox(&name).await { match self.user.create_mailbox(&name).await {
Ok(()) => Ok((Response::ok("CREATE complete")?, flow::Transition::None)), Ok(()) => Ok((
Err(e) => Ok((Response::no(&e.to_string())?, flow::Transition::None)), Response::build()
.to_req(self.req)
.message("CREATE complete")
.ok()?,
flow::Transition::None,
)),
Err(e) => Ok((
Response::build()
.to_req(self.req)
.message(&e.to_string())
.no()?,
flow::Transition::None,
)),
} }
} }
async fn delete(self, mailbox: &MailboxCodec) -> Result<(Response, flow::Transition)> { async fn delete(
let name = String::try_from(mailbox.clone())?; self,
mailbox: &MailboxCodec<'a>,
) -> Result<(Response<'static>, flow::Transition)> {
let name: &str = MailboxName(mailbox).try_into()?;
match self.user.delete_mailbox(&name).await { match self.user.delete_mailbox(&name).await {
Ok(()) => Ok((Response::ok("DELETE complete")?, flow::Transition::None)), Ok(()) => Ok((
Err(e) => Ok((Response::no(&e.to_string())?, flow::Transition::None)), Response::build()
.to_req(self.req)
.message("DELETE complete")
.ok()?,
flow::Transition::None,
)),
Err(e) => Ok((
Response::build()
.to_req(self.req)
.message(e.to_string())
.no()?,
flow::Transition::None,
)),
} }
} }
async fn rename( async fn rename(
self, self,
mailbox: &MailboxCodec, from: &MailboxCodec<'a>,
new_mailbox: &MailboxCodec, to: &MailboxCodec<'a>,
) -> Result<(Response, flow::Transition)> { ) -> Result<(Response<'static>, flow::Transition)> {
let name = String::try_from(mailbox.clone())?; let name: &str = MailboxName(from).try_into()?;
let new_name = String::try_from(new_mailbox.clone())?; let new_name: &str = MailboxName(to).try_into()?;
match self.user.rename_mailbox(&name, &new_name).await { match self.user.rename_mailbox(&name, &new_name).await {
Ok(()) => Ok((Response::ok("RENAME complete")?, flow::Transition::None)), Ok(()) => Ok((
Err(e) => Ok((Response::no(&e.to_string())?, flow::Transition::None)), Response::build()
.to_req(self.req)
.message("RENAME complete")
.ok()?,
flow::Transition::None,
)),
Err(e) => Ok((
Response::build()
.to_req(self.req)
.message(e.to_string())
.no()?,
flow::Transition::None,
)),
} }
} }
async fn list( async fn list(
self, self,
reference: &MailboxCodec, reference: &MailboxCodec<'a>,
mailbox_wildcard: &ListMailbox, mailbox_wildcard: &ListMailbox<'a>,
is_lsub: bool, is_lsub: bool,
) -> Result<(Response, flow::Transition)> { ) -> Result<(Response<'static>, flow::Transition)> {
let reference = String::try_from(reference.clone())?; let mbx_hier_delim: QuotedChar = QuotedChar::unvalidated(MBX_HIER_DELIM_RAW);
let reference: &str = MailboxName(reference).try_into()?;
if !reference.is_empty() { if !reference.is_empty() {
return Ok(( return Ok((
Response::bad("References not supported")?, Response::build()
.to_req(self.req)
.message("References not supported")
.bad()?,
flow::Transition::None, flow::Transition::None,
)); ));
} }
let wildcard = String::try_from(mailbox_wildcard.clone())?; // @FIXME would probably need a rewrite to better use the imap_codec library
let wildcard = match mailbox_wildcard {
ListMailbox::Token(v) => std::str::from_utf8(v.as_ref())?,
ListMailbox::String(v) => std::str::from_utf8(v.as_ref())?,
};
if wildcard.is_empty() { if wildcard.is_empty() {
if is_lsub { if is_lsub {
return Ok(( return Ok((
Response::ok("LSUB complete")?.with_body(vec![Data::Lsub { Response::build()
.to_req(self.req)
.message("LSUB complete")
.data(Data::Lsub {
items: vec![], items: vec![],
delimiter: Some(MAILBOX_HIERARCHY_DELIMITER), delimiter: Some(mbx_hier_delim),
mailbox: "".try_into().unwrap(), mailbox: "".try_into().unwrap(),
}]), })
.ok()?,
flow::Transition::None, flow::Transition::None,
)); ));
} else { } else {
return Ok(( return Ok((
Response::ok("LIST complete")?.with_body(vec![Data::List { Response::build()
.to_req(self.req)
.message("LIST complete")
.data(Data::List {
items: vec![], items: vec![],
delimiter: Some(MAILBOX_HIERARCHY_DELIMITER), delimiter: Some(mbx_hier_delim),
mailbox: "".try_into().unwrap(), mailbox: "".try_into().unwrap(),
}]), })
.ok()?,
flow::Transition::None, flow::Transition::None,
)); ));
} }
@ -147,7 +210,7 @@ impl<'a> AuthenticatedContext<'a> {
let mailboxes = self.user.list_mailboxes().await?; let mailboxes = self.user.list_mailboxes().await?;
let mut vmailboxes = BTreeMap::new(); let mut vmailboxes = BTreeMap::new();
for mb in mailboxes.iter() { for mb in mailboxes.iter() {
for (i, _) in mb.match_indices(MAILBOX_HIERARCHY_DELIMITER) { for (i, _) in mb.match_indices(MBX_HIER_DELIM_RAW) {
if i > 0 { if i > 0 {
let smb = &mb[..i]; let smb = &mb[..i];
vmailboxes.entry(smb).or_insert(false); vmailboxes.entry(smb).or_insert(false);
@ -163,22 +226,22 @@ impl<'a> AuthenticatedContext<'a> {
.to_string() .to_string()
.try_into() .try_into()
.map_err(|_| anyhow!("invalid mailbox name"))?; .map_err(|_| anyhow!("invalid mailbox name"))?;
let mut items = vec![FlagNameAttribute::Extension( let mut items = vec![FlagNameAttribute::try_from(Atom::unvalidated(
"Subscribed".try_into().unwrap(), "Subscribed",
)]; ))?];
if !*is_real { if !*is_real {
items.push(FlagNameAttribute::Noselect); items.push(FlagNameAttribute::Noselect);
} }
if is_lsub { if is_lsub {
ret.push(Data::Lsub { ret.push(Data::Lsub {
items, items,
delimiter: Some(MAILBOX_HIERARCHY_DELIMITER), delimiter: Some(mbx_hier_delim),
mailbox, mailbox,
}); });
} else { } else {
ret.push(Data::List { ret.push(Data::List {
items, items,
delimiter: Some(MAILBOX_HIERARCHY_DELIMITER), delimiter: Some(mbx_hier_delim),
mailbox, mailbox,
}); });
} }
@ -190,79 +253,120 @@ impl<'a> AuthenticatedContext<'a> {
} else { } else {
"LIST completed" "LIST completed"
}; };
Ok((Response::ok(msg)?.with_body(ret), flow::Transition::None)) Ok((
Response::build()
.to_req(self.req)
.message(msg)
.many_data(ret)
.ok()?,
flow::Transition::None,
))
} }
async fn status( async fn status(
self, self,
mailbox: &MailboxCodec, mailbox: &MailboxCodec<'static>,
attributes: &[StatusAttribute], attributes: &[StatusDataItemName],
) -> Result<(Response, flow::Transition)> { ) -> Result<(Response<'static>, flow::Transition)> {
let name = String::try_from(mailbox.clone())?; let name: &str = MailboxName(mailbox).try_into()?;
let mb_opt = self.user.open_mailbox(&name).await?; let mb_opt = self.user.open_mailbox(name).await?;
let mb = match mb_opt { let mb = match mb_opt {
Some(mb) => mb, Some(mb) => mb,
None => { None => {
return Ok(( return Ok((
Response::no("Mailbox does not exist")?, Response::build()
.to_req(self.req)
.message("Mailbox does not exist")
.no()?,
flow::Transition::None, flow::Transition::None,
)) ))
} }
}; };
let (view, _data) = MailboxView::new(mb).await?; let view = MailboxView::new(mb).await;
let mut ret_attrs = vec![]; let mut ret_attrs = vec![];
for attr in attributes.iter() { for attr in attributes.iter() {
ret_attrs.push(match attr { ret_attrs.push(match attr {
StatusAttribute::Messages => StatusAttributeValue::Messages(view.exists()?), StatusDataItemName::Messages => StatusDataItem::Messages(view.exists()?),
StatusAttribute::Unseen => StatusAttributeValue::Unseen(view.unseen_count() as u32), StatusDataItemName::Unseen => StatusDataItem::Unseen(view.unseen_count() as u32),
StatusAttribute::Recent => StatusAttributeValue::Recent(view.recent()?), StatusDataItemName::Recent => StatusDataItem::Recent(view.recent()?),
StatusAttribute::UidNext => StatusAttributeValue::UidNext(view.uidnext()), StatusDataItemName::UidNext => StatusDataItem::UidNext(view.uidnext()),
StatusAttribute::UidValidity => { StatusDataItemName::UidValidity => {
StatusAttributeValue::UidValidity(view.uidvalidity()) StatusDataItem::UidValidity(view.uidvalidity())
} }
StatusDataItemName::Deleted => {
bail!("quota not implemented, can't return deleted elements waiting for EXPUNGE");
},
StatusDataItemName::DeletedStorage => {
bail!("quota not implemented, can't return freed storage after EXPUNGE will be run");
},
}); });
} }
let data = vec![Body::Data(Data::Status { let data = Data::Status {
mailbox: mailbox.clone(), mailbox: mailbox.clone(),
attributes: ret_attrs, items: ret_attrs.into(),
})]; };
Ok(( Ok((
Response::ok("STATUS completed")?.with_body(data), Response::build()
.to_req(self.req)
.message("STATUS completed")
.data(data)
.ok()?,
flow::Transition::None, flow::Transition::None,
)) ))
} }
async fn subscribe(self, mailbox: &MailboxCodec) -> Result<(Response, flow::Transition)> { async fn subscribe(
let name = String::try_from(mailbox.clone())?; self,
mailbox: &MailboxCodec<'a>,
) -> Result<(Response<'static>, flow::Transition)> {
let name: &str = MailboxName(mailbox).try_into()?;
if self.user.has_mailbox(&name).await? { if self.user.has_mailbox(&name).await? {
Ok((Response::ok("SUBSCRIBE complete")?, flow::Transition::None)) Ok((
Response::build()
.to_req(self.req)
.message("SUBSCRIBE complete")
.ok()?,
flow::Transition::None,
))
} else { } else {
Ok(( Ok((
Response::bad(&format!("Mailbox {} does not exist", name))?, Response::build()
.to_req(self.req)
.message(format!("Mailbox {} does not exist", name))
.bad()?,
flow::Transition::None, flow::Transition::None,
)) ))
} }
} }
async fn unsubscribe(self, mailbox: &MailboxCodec) -> Result<(Response, flow::Transition)> { async fn unsubscribe(
let name = String::try_from(mailbox.clone())?; self,
mailbox: &MailboxCodec<'a>,
) -> Result<(Response<'static>, flow::Transition)> {
let name: &str = MailboxName(mailbox).try_into()?;
if self.user.has_mailbox(&name).await? { if self.user.has_mailbox(&name).await? {
Ok(( Ok((
Response::bad(&format!( Response::build()
.to_req(self.req)
.message(format!(
"Cannot unsubscribe from mailbox {}: not supported by Aerogramme", "Cannot unsubscribe from mailbox {}: not supported by Aerogramme",
name name
))?, ))
.bad()?,
flow::Transition::None, flow::Transition::None,
)) ))
} else { } else {
Ok(( Ok((
Response::bad(&format!("Mailbox {} does not exist", name))?, Response::build()
.to_req(self.req)
.message(format!("Mailbox {} does not exist", name))
.no()?,
flow::Transition::None, flow::Transition::None,
)) ))
} }
@ -301,83 +405,113 @@ impl<'a> AuthenticatedContext<'a> {
* TRACE END --- * TRACE END ---
*/ */
async fn select(self, mailbox: &MailboxCodec) -> Result<(Response, flow::Transition)> { async fn select(
let name = String::try_from(mailbox.clone())?; self,
mailbox: &MailboxCodec<'a>,
) -> Result<(Response<'static>, flow::Transition)> {
let name: &str = MailboxName(mailbox).try_into()?;
let mb_opt = self.user.open_mailbox(&name).await?; let mb_opt = self.user.open_mailbox(&name).await?;
let mb = match mb_opt { let mb = match mb_opt {
Some(mb) => mb, Some(mb) => mb,
None => { None => {
return Ok(( return Ok((
Response::no("Mailbox does not exist")?, Response::build()
.to_req(self.req)
.message("Mailbox does not exist")
.no()?,
flow::Transition::None, flow::Transition::None,
)) ))
} }
}; };
tracing::info!(username=%self.user.username, mailbox=%name, "mailbox.selected"); tracing::info!(username=%self.user.username, mailbox=%name, "mailbox.selected");
let (mb, data) = MailboxView::new(mb).await?; let mb = MailboxView::new(mb).await;
let data = mb.summary()?;
Ok(( Ok((
Response::ok("Select completed")? Response::build()
.with_extra_code(Code::ReadWrite) .message("Select completed")
.with_body(data), .to_req(self.req)
.code(Code::ReadWrite)
.set_body(data)
.ok()?,
flow::Transition::Select(mb), flow::Transition::Select(mb),
)) ))
} }
async fn examine(self, mailbox: &MailboxCodec) -> Result<(Response, flow::Transition)> { async fn examine(
let name = String::try_from(mailbox.clone())?; self,
mailbox: &MailboxCodec<'a>,
) -> Result<(Response<'static>, flow::Transition)> {
let name: &str = MailboxName(mailbox).try_into()?;
let mb_opt = self.user.open_mailbox(&name).await?; let mb_opt = self.user.open_mailbox(&name).await?;
let mb = match mb_opt { let mb = match mb_opt {
Some(mb) => mb, Some(mb) => mb,
None => { None => {
return Ok(( return Ok((
Response::no("Mailbox does not exist")?, Response::build()
.to_req(self.req)
.message("Mailbox does not exist")
.no()?,
flow::Transition::None, flow::Transition::None,
)) ))
} }
}; };
tracing::info!(username=%self.user.username, mailbox=%name, "mailbox.examined"); tracing::info!(username=%self.user.username, mailbox=%name, "mailbox.examined");
let (mb, data) = MailboxView::new(mb).await?; let mb = MailboxView::new(mb).await;
let data = mb.summary()?;
Ok(( Ok((
Response::ok("Examine completed")? Response::build()
.with_extra_code(Code::ReadOnly) .to_req(self.req)
.with_body(data), .message("Examine completed")
.code(Code::ReadOnly)
.set_body(data)
.ok()?,
flow::Transition::Examine(mb), flow::Transition::Examine(mb),
)) ))
} }
async fn append( async fn append(
self, self,
mailbox: &MailboxCodec, mailbox: &MailboxCodec<'a>,
flags: &[Flag], flags: &[Flag<'a>],
date: &Option<MyDateTime>, date: &Option<DateTime>,
message: &NonZeroBytes, message: &Literal<'a>,
) -> Result<(Response, flow::Transition)> { ) -> Result<(Response<'static>, flow::Transition)> {
let append_tag = self.req.tag.clone();
match self.append_internal(mailbox, flags, date, message).await { match self.append_internal(mailbox, flags, date, message).await {
Ok((_mb, uidvalidity, uid)) => Ok(( Ok((_mb, uidvalidity, uid)) => Ok((
Response::ok("APPEND completed")?.with_extra_code(Code::Other( Response::build()
"APPENDUID".try_into().unwrap(), .tag(append_tag)
Some(format!("{} {}", uidvalidity, uid)), .message("APPEND completed")
)), .code(Code::Other(CodeOther::unvalidated(
format!("APPENDUID {} {}", uidvalidity, uid).into_bytes(),
)))
.ok()?,
flow::Transition::None,
)),
Err(e) => Ok((
Response::build()
.tag(append_tag)
.message(e.to_string())
.no()?,
flow::Transition::None, flow::Transition::None,
)), )),
Err(e) => Ok((Response::no(&e.to_string())?, flow::Transition::None)),
} }
} }
pub(crate) async fn append_internal( pub(crate) async fn append_internal(
self, self,
mailbox: &MailboxCodec, mailbox: &MailboxCodec<'a>,
flags: &[Flag], flags: &[Flag<'a>],
date: &Option<MyDateTime>, date: &Option<DateTime>,
message: &NonZeroBytes, message: &Literal<'a>,
) -> Result<(Arc<Mailbox>, ImapUidvalidity, ImapUidvalidity)> { ) -> Result<(Arc<Mailbox>, ImapUidvalidity, ImapUidvalidity)> {
let name = String::try_from(mailbox.clone())?; let name: &str = MailboxName(mailbox).try_into()?;
let mb_opt = self.user.open_mailbox(&name).await?; let mb_opt = self.user.open_mailbox(&name).await?;
let mb = match mb_opt { let mb = match mb_opt {
@ -389,8 +523,8 @@ impl<'a> AuthenticatedContext<'a> {
bail!("Cannot set date when appending message"); bail!("Cannot set date when appending message");
} }
let msg = IMF::try_from(message.as_slice()) let msg =
.map_err(|_| anyhow!("Could not parse e-mail message"))?; IMF::try_from(message.data()).map_err(|_| anyhow!("Could not parse e-mail message"))?;
let flags = flags.iter().map(|x| x.to_string()).collect::<Vec<_>>(); let flags = flags.iter().map(|x| x.to_string()).collect::<Vec<_>>();
// TODO: filter allowed flags? ping @Quentin // TODO: filter allowed flags? ping @Quentin
@ -422,7 +556,7 @@ fn matches_wildcard(wildcard: &str, name: &str) -> bool {
&& j > 0 && j > 0
&& matches[i - 1][j] && matches[i - 1][j]
&& (wildcard[j - 1] == '*' && (wildcard[j - 1] == '*'
|| (wildcard[j - 1] == '%' && name[i - 1] != MAILBOX_HIERARCHY_DELIMITER))); || (wildcard[j - 1] == '%' && name[i - 1] != MBX_HIER_DELIM_RAW)));
} }
} }

146
src/imap/command/examined.rs
View file

@ -1,56 +1,60 @@
use std::sync::Arc; use std::sync::Arc;
use anyhow::Result; use anyhow::Result;
use boitalettres::proto::Request; use imap_codec::imap_types::command::{Command, CommandBody};
use boitalettres::proto::Response; use imap_codec::imap_types::core::Charset;
use imap_codec::types::command::{CommandBody, SearchKey}; use imap_codec::imap_types::fetch::MacroOrMessageDataItemNames;
use imap_codec::types::core::{Charset, NonZeroBytes}; use imap_codec::imap_types::search::SearchKey;
use imap_codec::types::datetime::MyDateTime; use imap_codec::imap_types::sequence::SequenceSet;
use imap_codec::types::fetch_attributes::MacroOrFetchAttributes;
use imap_codec::types::flag::Flag;
use imap_codec::types::mailbox::Mailbox as MailboxCodec;
use imap_codec::types::response::Code;
use imap_codec::types::sequence::SequenceSet;
use crate::imap::command::authenticated; use crate::imap::command::{anystate, authenticated};
use crate::imap::flow; use crate::imap::flow;
use crate::imap::mailbox_view::MailboxView; use crate::imap::mailbox_view::MailboxView;
use crate::imap::response::Response;
use crate::mail::user::User; use crate::mail::user::User;
pub struct ExaminedContext<'a> { pub struct ExaminedContext<'a> {
pub req: &'a Request, pub req: &'a Command<'static>,
pub user: &'a Arc<User>, pub user: &'a Arc<User>,
pub mailbox: &'a mut MailboxView, pub mailbox: &'a mut MailboxView,
} }
pub async fn dispatch(ctx: ExaminedContext<'_>) -> Result<(Response, flow::Transition)> { pub async fn dispatch(ctx: ExaminedContext<'_>) -> Result<(Response<'static>, flow::Transition)> {
match &ctx.req.command.body { match &ctx.req.body {
// CLOSE in examined state is not the same as in selected state // Any State
// (in selected state it also does an EXPUNGE, here it doesn't) // noop is specific to this state
CommandBody::Capability => anystate::capability(ctx.req.tag.clone()),
CommandBody::Logout => anystate::logout(),
// Specific to the EXAMINE state (specialization of the SELECTED state)
// ~3 commands -> close, fetch, search + NOOP
CommandBody::Close => ctx.close().await, CommandBody::Close => ctx.close().await,
CommandBody::Fetch { CommandBody::Fetch {
sequence_set, sequence_set,
attributes, macro_or_item_names,
uid, uid,
} => ctx.fetch(sequence_set, attributes, uid).await, } => ctx.fetch(sequence_set, macro_or_item_names, uid).await,
CommandBody::Search { CommandBody::Search {
charset, charset,
criteria, criteria,
uid, uid,
} => ctx.search(charset, criteria, uid).await, } => ctx.search(charset, criteria, uid).await,
CommandBody::Noop => ctx.noop().await, CommandBody::Noop | CommandBody::Check => ctx.noop().await,
CommandBody::Append { CommandBody::Expunge { .. } | CommandBody::Store { .. } => Ok((
mailbox, Response::build()
flags, .to_req(ctx.req)
date, .message("Forbidden command: can't write in read-only mode (EXAMINE)")
message, .bad()?,
} => ctx.append(mailbox, flags, date, message).await, flow::Transition::None,
)),
// In examined mode, we fallback to authenticated when needed
_ => { _ => {
let ctx = authenticated::AuthenticatedContext { authenticated::dispatch(authenticated::AuthenticatedContext {
req: ctx.req, req: ctx.req,
user: ctx.user, user: ctx.user,
}; })
authenticated::dispatch(ctx).await .await
} }
} }
} }
@ -58,71 +62,69 @@ pub async fn dispatch(ctx: ExaminedContext<'_>) -> Result<(Response, flow::Trans
// --- PRIVATE --- // --- PRIVATE ---
impl<'a> ExaminedContext<'a> { impl<'a> ExaminedContext<'a> {
async fn close(self) -> Result<(Response, flow::Transition)> { /// CLOSE in examined state is not the same as in selected state
Ok((Response::ok("CLOSE completed")?, flow::Transition::Unselect)) /// (in selected state it also does an EXPUNGE, here it doesn't)
async fn close(self) -> Result<(Response<'static>, flow::Transition)> {
Ok((
Response::build()
.to_req(self.req)
.message("CLOSE completed")
.ok()?,
flow::Transition::Unselect,
))
} }
pub async fn fetch( pub async fn fetch(
self, self,
sequence_set: &SequenceSet, sequence_set: &SequenceSet,
attributes: &MacroOrFetchAttributes, attributes: &'a MacroOrMessageDataItemNames<'static>,
uid: &bool, uid: &bool,
) -> Result<(Response, flow::Transition)> { ) -> Result<(Response<'static>, flow::Transition)> {
match self.mailbox.fetch(sequence_set, attributes, uid).await { match self.mailbox.fetch(sequence_set, attributes, uid).await {
Ok(resp) => Ok(( Ok(resp) => Ok((
Response::ok("FETCH completed")?.with_body(resp), Response::build()
.to_req(self.req)
.message("FETCH completed")
.set_body(resp)
.ok()?,
flow::Transition::None,
)),
Err(e) => Ok((
Response::build()
.to_req(self.req)
.message(e.to_string())
.no()?,
flow::Transition::None, flow::Transition::None,
)), )),
Err(e) => Ok((Response::no(&e.to_string())?, flow::Transition::None)),
} }
} }
pub async fn search( pub async fn search(
self, self,
_charset: &Option<Charset>, _charset: &Option<Charset<'a>>,
_criteria: &SearchKey, _criteria: &SearchKey<'a>,
_uid: &bool, _uid: &bool,
) -> Result<(Response, flow::Transition)> { ) -> Result<(Response<'static>, flow::Transition)> {
Ok((Response::bad("Not implemented")?, flow::Transition::None))
}
pub async fn noop(self) -> Result<(Response, flow::Transition)> {
self.mailbox.mailbox.force_sync().await?;
let updates = self.mailbox.update().await?;
Ok(( Ok((
Response::ok("NOOP completed.")?.with_body(updates), Response::build()
.to_req(self.req)
.message("Not implemented")
.bad()?,
flow::Transition::None, flow::Transition::None,
)) ))
} }
async fn append( pub async fn noop(self) -> Result<(Response<'static>, flow::Transition)> {
self, self.mailbox.mailbox.force_sync().await?;
mailbox: &MailboxCodec,
flags: &[Flag],
date: &Option<MyDateTime>,
message: &NonZeroBytes,
) -> Result<(Response, flow::Transition)> {
let ctx2 = authenticated::AuthenticatedContext {
req: self.req,
user: self.user,
};
match ctx2.append_internal(mailbox, flags, date, message).await { let updates = self.mailbox.update().await?;
Ok((mb, uidvalidity, uid)) => { Ok((
let resp = Response::ok("APPEND completed")?.with_extra_code(Code::Other( Response::build()
"APPENDUID".try_into().unwrap(), .to_req(self.req)
Some(format!("{} {}", uidvalidity, uid)), .message("NOOP completed.")
)); .set_body(updates)
.ok()?,
if Arc::ptr_eq(&mb, &self.mailbox.mailbox) { flow::Transition::None,
let data = self.mailbox.update().await?; ))
Ok((resp.with_body(data), flow::Transition::None))
} else {
Ok((resp, flow::Transition::None))
}
}
Err(e) => Ok((Response::no(&e.to_string())?, flow::Transition::None)),
}
} }
} }

17
src/imap/command/mod.rs
View file

@ -1,4 +1,21 @@
pub mod anonymous; pub mod anonymous;
pub mod anystate;
pub mod authenticated; pub mod authenticated;
pub mod examined; pub mod examined;
pub mod selected; pub mod selected;
use crate::mail::user::INBOX;
use imap_codec::imap_types::mailbox::Mailbox as MailboxCodec;
/// Convert an IMAP mailbox name/identifier representation
/// to an utf-8 string that is used internally in Aerogramme
struct MailboxName<'a>(&'a MailboxCodec<'a>);
impl<'a> TryInto<&'a str> for MailboxName<'a> {
type Error = std::str::Utf8Error;
fn try_into(self) -> Result<&'a str, Self::Error> {
match self.0 {
MailboxCodec::Inbox => Ok(INBOX),
MailboxCodec::Other(aname) => Ok(std::str::from_utf8(aname.as_ref())?),
}
}
}

159
src/imap/command/selected.rs
View file

@ -1,31 +1,50 @@
use std::sync::Arc; use std::sync::Arc;
use anyhow::Result; use anyhow::Result;
use boitalettres::proto::Request; use imap_codec::imap_types::command::{Command, CommandBody};
use boitalettres::proto::Response; use imap_codec::imap_types::core::Charset;
use imap_codec::types::command::CommandBody; use imap_codec::imap_types::fetch::MacroOrMessageDataItemNames;
use imap_codec::types::flag::{Flag, StoreResponse, StoreType}; use imap_codec::imap_types::flag::{Flag, StoreResponse, StoreType};
use imap_codec::types::mailbox::Mailbox as MailboxCodec; use imap_codec::imap_types::mailbox::Mailbox as MailboxCodec;
use imap_codec::types::response::Code; use imap_codec::imap_types::response::{Code, CodeOther};
use imap_codec::types::sequence::SequenceSet; use imap_codec::imap_types::search::SearchKey;
use imap_codec::imap_types::sequence::SequenceSet;
use crate::imap::command::examined; use crate::imap::command::{anystate, authenticated, MailboxName};
use crate::imap::flow; use crate::imap::flow;
use crate::imap::mailbox_view::MailboxView; use crate::imap::mailbox_view::MailboxView;
use crate::imap::response::Response;
use crate::mail::user::User; use crate::mail::user::User;
pub struct SelectedContext<'a> { pub struct SelectedContext<'a> {
pub req: &'a Request, pub req: &'a Command<'static>,
pub user: &'a Arc<User>, pub user: &'a Arc<User>,
pub mailbox: &'a mut MailboxView, pub mailbox: &'a mut MailboxView,
} }
pub async fn dispatch(ctx: SelectedContext<'_>) -> Result<(Response, flow::Transition)> { pub async fn dispatch<'a>(
match &ctx.req.command.body { ctx: SelectedContext<'a>,
// Only write commands here, read commands are handled in ) -> Result<(Response<'static>, flow::Transition)> {
// `examined.rs` match &ctx.req.body {
// Any State
// noop is specific to this state
CommandBody::Capability => anystate::capability(ctx.req.tag.clone()),
CommandBody::Logout => anystate::logout(),
// Specific to this state (7 commands + NOOP)
CommandBody::Close => ctx.close().await, CommandBody::Close => ctx.close().await,
CommandBody::Noop | CommandBody::Check => ctx.noop().await,
CommandBody::Fetch {
sequence_set,
macro_or_item_names,
uid,
} => ctx.fetch(sequence_set, macro_or_item_names, uid).await,
CommandBody::Search {
charset,
criteria,
uid,
} => ctx.search(charset, criteria, uid).await,
CommandBody::Expunge => ctx.expunge().await, CommandBody::Expunge => ctx.expunge().await,
CommandBody::Store { CommandBody::Store {
sequence_set, sequence_set,
@ -39,13 +58,14 @@ pub async fn dispatch(ctx: SelectedContext<'_>) -> Result<(Response, flow::Trans
mailbox, mailbox,
uid, uid,
} => ctx.copy(sequence_set, mailbox, uid).await, } => ctx.copy(sequence_set, mailbox, uid).await,
// In selected mode, we fallback to authenticated when needed
_ => { _ => {
let ctx = examined::ExaminedContext { authenticated::dispatch(authenticated::AuthenticatedContext {
req: ctx.req, req: ctx.req,
user: ctx.user, user: ctx.user,
mailbox: ctx.mailbox, })
}; .await
examined::dispatch(ctx).await
} }
} }
} }
@ -53,18 +73,81 @@ pub async fn dispatch(ctx: SelectedContext<'_>) -> Result<(Response, flow::Trans
// --- PRIVATE --- // --- PRIVATE ---
impl<'a> SelectedContext<'a> { impl<'a> SelectedContext<'a> {
async fn close(self) -> Result<(Response, flow::Transition)> { async fn close(self) -> Result<(Response<'static>, flow::Transition)> {
// We expunge messages, // We expunge messages,
// but we don't send the untagged EXPUNGE responses // but we don't send the untagged EXPUNGE responses
let tag = self.req.tag.clone();
self.expunge().await?; self.expunge().await?;
Ok((Response::ok("CLOSE completed")?, flow::Transition::Unselect)) Ok((
Response::build().tag(tag).message("CLOSE completed").ok()?,
flow::Transition::Unselect,
))
} }
async fn expunge(self) -> Result<(Response, flow::Transition)> { pub async fn fetch(
self,
sequence_set: &SequenceSet,
attributes: &'a MacroOrMessageDataItemNames<'static>,
uid: &bool,
) -> Result<(Response<'static>, flow::Transition)> {
match self.mailbox.fetch(sequence_set, attributes, uid).await {
Ok(resp) => Ok((
Response::build()
.to_req(self.req)
.message("FETCH completed")
.set_body(resp)
.ok()?,
flow::Transition::None,
)),
Err(e) => Ok((
Response::build()
.to_req(self.req)
.message(e.to_string())
.no()?,
flow::Transition::None,
)),
}
}
pub async fn search(
self,
_charset: &Option<Charset<'a>>,
_criteria: &SearchKey<'a>,
_uid: &bool,
) -> Result<(Response<'static>, flow::Transition)> {
Ok((
Response::build()
.to_req(self.req)
.message("Not implemented")
.bad()?,
flow::Transition::None,
))
}
pub async fn noop(self) -> Result<(Response<'static>, flow::Transition)> {
self.mailbox.mailbox.force_sync().await?;
let updates = self.mailbox.update().await?;
Ok((
Response::build()
.to_req(self.req)
.message("NOOP completed.")
.set_body(updates)
.ok()?,
flow::Transition::None,
))
}
async fn expunge(self) -> Result<(Response<'static>, flow::Transition)> {
let tag = self.req.tag.clone();
let data = self.mailbox.expunge().await?; let data = self.mailbox.expunge().await?;
Ok(( Ok((
Response::ok("EXPUNGE completed")?.with_body(data), Response::build()
.tag(tag)
.message("EXPUNGE completed")
.set_body(data)
.ok()?,
flow::Transition::None, flow::Transition::None,
)) ))
} }
@ -74,16 +157,20 @@ impl<'a> SelectedContext<'a> {
sequence_set: &SequenceSet, sequence_set: &SequenceSet,
kind: &StoreType, kind: &StoreType,
response: &StoreResponse, response: &StoreResponse,
flags: &[Flag], flags: &[Flag<'a>],
uid: &bool, uid: &bool,
) -> Result<(Response, flow::Transition)> { ) -> Result<(Response<'static>, flow::Transition)> {
let data = self let data = self
.mailbox .mailbox
.store(sequence_set, kind, response, flags, uid) .store(sequence_set, kind, response, flags, uid)
.await?; .await?;
Ok(( Ok((
Response::ok("STORE completed")?.with_body(data), Response::build()
.to_req(self.req)
.message("STORE completed")
.set_body(data)
.ok()?,
flow::Transition::None, flow::Transition::None,
)) ))
} }
@ -91,18 +178,21 @@ impl<'a> SelectedContext<'a> {
async fn copy( async fn copy(
self, self,
sequence_set: &SequenceSet, sequence_set: &SequenceSet,
mailbox: &MailboxCodec, mailbox: &MailboxCodec<'a>,
uid: &bool, uid: &bool,
) -> Result<(Response, flow::Transition)> { ) -> Result<(Response<'static>, flow::Transition)> {
let name = String::try_from(mailbox.clone())?; let name: &str = MailboxName(mailbox).try_into()?;
let mb_opt = self.user.open_mailbox(&name).await?; let mb_opt = self.user.open_mailbox(&name).await?;
let mb = match mb_opt { let mb = match mb_opt {
Some(mb) => mb, Some(mb) => mb,
None => { None => {
return Ok(( return Ok((
Response::no("Destination mailbox does not exist")? Response::build()
.with_extra_code(Code::TryCreate), .to_req(self.req)
.message("Destination mailbox does not exist")
.code(Code::TryCreate)
.no()?,
flow::Transition::None, flow::Transition::None,
)) ))
} }
@ -126,10 +216,13 @@ impl<'a> SelectedContext<'a> {
); );
Ok(( Ok((
Response::ok("COPY completed")?.with_extra_code(Code::Other( Response::build()
"COPYUID".try_into().unwrap(), .to_req(self.req)
Some(copyuid_str), .message("COPY completed")
)), .code(Code::Other(CodeOther::unvalidated(
format!("COPYUID {}", copyuid_str).into_bytes(),
)))
.ok()?,
flow::Transition::None, flow::Transition::None,
)) ))
} }

24
src/imap/flow.rs
View file

@ -37,23 +37,27 @@ pub enum Transition {
// See RFC3501 section 3. // See RFC3501 section 3.
// https://datatracker.ietf.org/doc/html/rfc3501#page-13 // https://datatracker.ietf.org/doc/html/rfc3501#page-13
impl State { impl State {
pub fn apply(self, tr: Transition) -> Result<Self, Error> { pub fn apply(&mut self, tr: Transition) -> Result<(), Error> {
match (self, tr) { let new_state = match (&self, tr) {
(s, Transition::None) => Ok(s), (_s, Transition::None) => return Ok(()),
(State::NotAuthenticated, Transition::Authenticate(u)) => Ok(State::Authenticated(u)), (State::NotAuthenticated, Transition::Authenticate(u)) => State::Authenticated(u),
( (
State::Authenticated(u) | State::Selected(u, _) | State::Examined(u, _), State::Authenticated(u) | State::Selected(u, _) | State::Examined(u, _),
Transition::Select(m), Transition::Select(m),
) => Ok(State::Selected(u, m)), ) => State::Selected(u.clone(), m),
( (
State::Authenticated(u) | State::Selected(u, _) | State::Examined(u, _), State::Authenticated(u) | State::Selected(u, _) | State::Examined(u, _),
Transition::Examine(m), Transition::Examine(m),
) => Ok(State::Examined(u, m)), ) => State::Examined(u.clone(), m),
(State::Selected(u, _) | State::Examined(u, _), Transition::Unselect) => { (State::Selected(u, _) | State::Examined(u, _), Transition::Unselect) => {
Ok(State::Authenticated(u)) State::Authenticated(u.clone())
}
(_, Transition::Logout) => Ok(State::Logout),
_ => Err(Error::ForbiddenTransition),
} }
(_, Transition::Logout) => State::Logout,
_ => return Err(Error::ForbiddenTransition),
};
*self = new_state;
Ok(())
} }
} }

465
src/imap/mailbox_view.rs
View file

@ -4,22 +4,20 @@ use std::num::NonZeroU32;
use std::sync::Arc; use std::sync::Arc;
use anyhow::{anyhow, bail, Error, Result}; use anyhow::{anyhow, bail, Error, Result};
use boitalettres::proto::res::body::Data as Body;
use chrono::{Offset, TimeZone, Utc}; use chrono::{Offset, TimeZone, Utc};
use futures::stream::{FuturesOrdered, StreamExt}; use futures::stream::{FuturesOrdered, StreamExt};
use imap_codec::types::address::Address; use imap_codec::imap_types::body::{BasicFields, Body as FetchBody, BodyStructure, SpecificFields};
use imap_codec::types::body::{BasicFields, Body as FetchBody, BodyStructure, SpecificFields}; use imap_codec::imap_types::core::{AString, Atom, IString, NString, NonEmptyVec};
use imap_codec::types::core::{AString, Atom, IString, NString}; use imap_codec::imap_types::datetime::DateTime;
use imap_codec::types::datetime::MyDateTime; use imap_codec::imap_types::envelope::{Address, Envelope};
use imap_codec::types::envelope::Envelope; use imap_codec::imap_types::fetch::{
use imap_codec::types::fetch_attributes::{ MacroOrMessageDataItemNames, MessageDataItem, MessageDataItemName, Section as FetchSection,
FetchAttribute, MacroOrFetchAttributes, Section as FetchSection,
}; };
use imap_codec::types::flag::{Flag, StoreResponse, StoreType}; use imap_codec::imap_types::flag::{Flag, FlagFetch, FlagPerm, StoreResponse, StoreType};
use imap_codec::types::response::{Code, Data, MessageAttribute, Status}; use imap_codec::imap_types::response::{Code, Data, Status};
use imap_codec::types::sequence::{self, SequenceSet}; use imap_codec::imap_types::sequence::{self, SequenceSet};
use eml_codec::{ use eml_codec::{
header, imf, mime, header, imf, mime,
@ -28,6 +26,7 @@ use eml_codec::{
}; };
use crate::cryptoblob::Key; use crate::cryptoblob::Key;
use crate::imap::response::Body;
use crate::mail::mailbox::{MailMeta, Mailbox}; use crate::mail::mailbox::{MailMeta, Mailbox};
use crate::mail::uidindex::{ImapUid, ImapUidvalidity, UidIndex}; use crate::mail::uidindex::{ImapUid, ImapUidvalidity, UidIndex};
use crate::mail::unique_ident::UniqueIdent; use crate::mail::unique_ident::UniqueIdent;
@ -77,19 +76,31 @@ impl<'a> FetchedMail<'a> {
} }
pub struct AttributesProxy { pub struct AttributesProxy {
attrs: Vec<FetchAttribute>, attrs: Vec<MessageDataItemName<'static>>,
} }
impl AttributesProxy { impl AttributesProxy {
fn new(attrs: &MacroOrFetchAttributes, is_uid_fetch: bool) -> Self { fn new(attrs: &MacroOrMessageDataItemNames<'static>, is_uid_fetch: bool) -> Self {
// Expand macros // Expand macros
let mut fetch_attrs = match attrs { let mut fetch_attrs = match attrs {
MacroOrFetchAttributes::Macro(m) => m.expand(), MacroOrMessageDataItemNames::Macro(m) => {
MacroOrFetchAttributes::FetchAttributes(a) => a.clone(), use imap_codec::imap_types::fetch::Macro;
use MessageDataItemName::*;
match m {
Macro::All => vec![Flags, InternalDate, Rfc822Size, Envelope],
Macro::Fast => vec![Flags, InternalDate, Rfc822Size],
Macro::Full => vec![Flags, InternalDate, Rfc822Size, Envelope, Body],
_ => {
tracing::error!("unimplemented macro");
vec![]
}
}
}
MacroOrMessageDataItemNames::MessageDataItemNames(a) => a.clone(),
}; };
// Handle uids // Handle uids
if is_uid_fetch && !fetch_attrs.contains(&FetchAttribute::Uid) { if is_uid_fetch && !fetch_attrs.contains(&MessageDataItemName::Uid) {
fetch_attrs.push(FetchAttribute::Uid); fetch_attrs.push(MessageDataItemName::Uid);
} }
Self { attrs: fetch_attrs } Self { attrs: fetch_attrs }
@ -99,11 +110,11 @@ impl AttributesProxy {
self.attrs.iter().any(|x| { self.attrs.iter().any(|x| {
matches!( matches!(
x, x,
FetchAttribute::Body MessageDataItemName::Body
| FetchAttribute::BodyExt { .. } | MessageDataItemName::BodyExt { .. }
| FetchAttribute::Rfc822 | MessageDataItemName::Rfc822
| FetchAttribute::Rfc822Text | MessageDataItemName::Rfc822Text
| FetchAttribute::BodyStructure | MessageDataItemName::BodyStructure
) )
}) })
} }
@ -127,16 +138,20 @@ pub struct MailView<'a> {
meta: &'a MailMeta, meta: &'a MailMeta,
flags: &'a Vec<String>, flags: &'a Vec<String>,
content: FetchedMail<'a>, content: FetchedMail<'a>,
add_seen: bool, }
enum SeenFlag {
DoNothing,
MustAdd,
} }
impl<'a> MailView<'a> { impl<'a> MailView<'a> {
fn uid(&self) -> MessageAttribute { fn uid(&self) -> MessageDataItem<'static> {
MessageAttribute::Uid(self.ids.uid) MessageDataItem::Uid(self.ids.uid.clone())
} }
fn flags(&self) -> MessageAttribute { fn flags(&self) -> MessageDataItem<'static> {
MessageAttribute::Flags( MessageDataItem::Flags(
self.flags self.flags
.iter() .iter()
.filter_map(|f| string_to_flag(f)) .filter_map(|f| string_to_flag(f))
@ -144,12 +159,12 @@ impl<'a> MailView<'a> {
) )
} }
fn rfc_822_size(&self) -> MessageAttribute { fn rfc_822_size(&self) -> MessageDataItem<'static> {
MessageAttribute::Rfc822Size(self.meta.rfc822_size as u32) MessageDataItem::Rfc822Size(self.meta.rfc822_size as u32)
} }
fn rfc_822_header(&self) -> MessageAttribute { fn rfc_822_header(&self) -> MessageDataItem<'static> {
MessageAttribute::Rfc822Header(NString( MessageDataItem::Rfc822Header(NString(
self.meta self.meta
.headers .headers
.to_vec() .to_vec()
@ -159,41 +174,42 @@ impl<'a> MailView<'a> {
)) ))
} }
fn rfc_822_text(&self) -> Result<MessageAttribute> { fn rfc_822_text(&self) -> Result<MessageDataItem<'static>> {
Ok(MessageAttribute::Rfc822Text(NString( Ok(MessageDataItem::Rfc822Text(NString(
self.content self.content
.as_full()? .as_full()?
.raw_body .raw_body
.to_vec()
.try_into() .try_into()
.ok() .ok()
.map(IString::Literal), .map(IString::Literal),
))) )))
} }
fn rfc822(&self) -> Result<MessageAttribute> { fn rfc822(&self) -> Result<MessageDataItem<'static>> {
Ok(MessageAttribute::Rfc822(NString( Ok(MessageDataItem::Rfc822(NString(
self.content self.content
.as_full()? .as_full()?
.raw_body .raw_part
.clone() .to_vec()
.try_into() .try_into()
.ok() .ok()
.map(IString::Literal), .map(IString::Literal),
))) )))
} }
fn envelope(&self) -> MessageAttribute { fn envelope(&self) -> MessageDataItem<'static> {
MessageAttribute::Envelope(message_envelope(self.content.imf())) MessageDataItem::Envelope(message_envelope(self.content.imf().clone()))
} }
fn body(&self) -> Result<MessageAttribute> { fn body(&self) -> Result<MessageDataItem<'static>> {
Ok(MessageAttribute::Body(build_imap_email_struct( Ok(MessageDataItem::Body(build_imap_email_struct(
self.content.as_full()?.child.as_ref(), self.content.as_full()?.child.as_ref(),
)?)) )?))
} }
fn body_structure(&self) -> Result<MessageAttribute> { fn body_structure(&self) -> Result<MessageDataItem<'static>> {
Ok(MessageAttribute::Body(build_imap_email_struct( Ok(MessageDataItem::Body(build_imap_email_struct(
self.content.as_full()?.child.as_ref(), self.content.as_full()?.child.as_ref(),
)?)) )?))
} }
@ -202,12 +218,14 @@ impl<'a> MailView<'a> {
/// peek does not implicitly set the \Seen flag /// peek does not implicitly set the \Seen flag
/// eg. BODY[HEADER.FIELDS (DATE FROM)] /// eg. BODY[HEADER.FIELDS (DATE FROM)]
/// eg. BODY[]<0.2048> /// eg. BODY[]<0.2048>
fn body_ext( fn body_ext<'b>(
&mut self, &self,
section: &Option<FetchSection>, section: &Option<FetchSection<'b>>,
partial: &Option<(u32, NonZeroU32)>, partial: &Option<(u32, NonZeroU32)>,
peek: &bool, peek: &bool,
) -> Result<MessageAttribute> { ) -> Result<(MessageDataItem<'b>, SeenFlag)> {
let mut seen = SeenFlag::DoNothing;
// Extract message section // Extract message section
let text = get_message_section(self.content.as_anypart()?, section)?; let text = get_message_section(self.content.as_anypart()?, section)?;
@ -215,7 +233,7 @@ impl<'a> MailView<'a> {
if !peek && !self.flags.iter().any(|x| *x == seen_flag) { if !peek && !self.flags.iter().any(|x| *x == seen_flag) {
// Add \Seen flag // Add \Seen flag
//self.mailbox.add_flags(uuid, &[seen_flag]).await?; //self.mailbox.add_flags(uuid, &[seen_flag]).await?;
self.add_seen = true; seen = SeenFlag::MustAdd;
} }
// Handle <<partial>> which cut the message bytes // Handle <<partial>> which cut the message bytes
@ -223,49 +241,60 @@ impl<'a> MailView<'a> {
let data = NString(text.to_vec().try_into().ok().map(IString::Literal)); let data = NString(text.to_vec().try_into().ok().map(IString::Literal));
return Ok(MessageAttribute::BodyExt { return Ok((
section: section.clone(), MessageDataItem::BodyExt {
section: section.as_ref().map(|fs| fs.clone()),
origin, origin,
data, data,
}); },
seen,
));
} }
fn internal_date(&self) -> Result<MessageAttribute> { fn internal_date(&self) -> Result<MessageDataItem<'static>> {
let dt = Utc let dt = Utc
.fix() .fix()
.timestamp_opt(i64::try_from(self.meta.internaldate / 1000)?, 0) .timestamp_opt(i64::try_from(self.meta.internaldate / 1000)?, 0)
.earliest() .earliest()
.ok_or(anyhow!("Unable to parse internal date"))?; .ok_or(anyhow!("Unable to parse internal date"))?;
Ok(MessageAttribute::InternalDate(MyDateTime(dt))) Ok(MessageDataItem::InternalDate(DateTime::unvalidated(dt)))
} }
fn filter(&mut self, ap: &AttributesProxy) -> Result<Body> { fn filter<'b>(&self, ap: &AttributesProxy) -> Result<(Body<'static>, SeenFlag)> {
let mut seen = SeenFlag::DoNothing;
let res_attrs = ap let res_attrs = ap
.attrs .attrs
.iter() .iter()
.map(|attr| match attr { .map(|attr| match attr {
FetchAttribute::Uid => Ok(self.uid()), MessageDataItemName::Uid => Ok(self.uid()),
FetchAttribute::Flags => Ok(self.flags()), MessageDataItemName::Flags => Ok(self.flags()),
FetchAttribute::Rfc822Size => Ok(self.rfc_822_size()), MessageDataItemName::Rfc822Size => Ok(self.rfc_822_size()),
FetchAttribute::Rfc822Header => Ok(self.rfc_822_header()), MessageDataItemName::Rfc822Header => Ok(self.rfc_822_header()),
FetchAttribute::Rfc822Text => self.rfc_822_text(), MessageDataItemName::Rfc822Text => self.rfc_822_text(),
FetchAttribute::Rfc822 => self.rfc822(), MessageDataItemName::Rfc822 => self.rfc822(),
FetchAttribute::Envelope => Ok(self.envelope()), MessageDataItemName::Envelope => Ok(self.envelope()),
FetchAttribute::Body => self.body(), MessageDataItemName::Body => self.body(),
FetchAttribute::BodyStructure => self.body_structure(), MessageDataItemName::BodyStructure => self.body_structure(),
FetchAttribute::BodyExt { MessageDataItemName::BodyExt {
section, section,
partial, partial,
peek, peek,
} => self.body_ext(section, partial, peek), } => {
FetchAttribute::InternalDate => self.internal_date(), let (body, has_seen) = self.body_ext(section, partial, peek)?;
seen = has_seen;
Ok(body)
}
MessageDataItemName::InternalDate => self.internal_date(),
}) })
.collect::<Result<Vec<_>, _>>()?; .collect::<Result<Vec<_>, _>>()?;
Ok(Body::Data(Data::Fetch { Ok((
seq_or_uid: self.ids.i, Body::Data(Data::Fetch {
attributes: res_attrs, seq: self.ids.i,
})) items: res_attrs.try_into()?,
}),
seen,
))
} }
} }
@ -376,7 +405,6 @@ impl<'a> MailSelectionBuilder<'a> {
meta, meta,
flags, flags,
content, content,
add_seen: false,
}) })
.collect()) .collect())
} }
@ -396,35 +424,26 @@ pub struct MailboxView {
impl MailboxView { impl MailboxView {
/// Creates a new IMAP view into a mailbox. /// Creates a new IMAP view into a mailbox.
/// Generates the necessary IMAP messages so that the client pub async fn new(mailbox: Arc<Mailbox>) -> Self {
/// has a satisfactory summary of the current mailbox's state.
/// These are the messages that are sent in response to a SELECT command.
pub async fn new(mailbox: Arc<Mailbox>) -> Result<(Self, Vec<Body>)> {
let state = mailbox.current_uid_index().await; let state = mailbox.current_uid_index().await;
let new_view = Self { Self {
mailbox, mailbox,
known_state: state, known_state: state,
}; }
let mut data = Vec::<Body>::new();
data.push(new_view.exists_status()?);
data.push(new_view.recent_status()?);
data.extend(new_view.flags_status()?.into_iter());
data.push(new_view.uidvalidity_status()?);
data.push(new_view.uidnext_status()?);
Ok((new_view, data))
} }
/// Create an updated view, useful to make a diff
/// between what the client knows and new stuff
/// Produces a set of IMAP responses describing the change between /// Produces a set of IMAP responses describing the change between
/// what the client knows and what is actually in the mailbox. /// what the client knows and what is actually in the mailbox.
/// This does NOT trigger a sync, it bases itself on what is currently /// This does NOT trigger a sync, it bases itself on what is currently
/// loaded in RAM by Bayou. /// loaded in RAM by Bayou.
pub async fn update(&mut self) -> Result<Vec<Body>> { pub async fn update(&mut self) -> Result<Vec<Body<'static>>> {
let new_view = MailboxView { let old_view: &mut Self = self;
mailbox: self.mailbox.clone(), let new_view = Self {
known_state: self.mailbox.current_uid_index().await, mailbox: old_view.mailbox.clone(),
known_state: old_view.mailbox.current_uid_index().await,
}; };
let mut data = Vec::<Body>::new(); let mut data = Vec::<Body>::new();
@ -446,7 +465,7 @@ impl MailboxView {
// - notify client of expunged mails // - notify client of expunged mails
let mut n_expunge = 0; let mut n_expunge = 0;
for (i, (_uid, uuid)) in self.known_state.idx_by_uid.iter().enumerate() { for (i, (_uid, uuid)) in old_view.known_state.idx_by_uid.iter().enumerate() {
if !new_view.known_state.table.contains_key(uuid) { if !new_view.known_state.table.contains_key(uuid) {
data.push(Body::Data(Data::Expunge( data.push(Body::Data(Data::Expunge(
NonZeroU32::try_from((i + 1 - n_expunge) as u32).unwrap(), NonZeroU32::try_from((i + 1 - n_expunge) as u32).unwrap(),
@ -456,49 +475,63 @@ impl MailboxView {
} }
// - if new mails arrived, notify client of number of existing mails // - if new mails arrived, notify client of number of existing mails
if new_view.known_state.table.len() != self.known_state.table.len() - n_expunge if new_view.known_state.table.len() != old_view.known_state.table.len() - n_expunge
|| new_view.known_state.uidvalidity != self.known_state.uidvalidity || new_view.known_state.uidvalidity != old_view.known_state.uidvalidity
{ {
data.push(new_view.exists_status()?); data.push(new_view.exists_status()?);
} }
if new_view.known_state.uidvalidity != self.known_state.uidvalidity { if new_view.known_state.uidvalidity != old_view.known_state.uidvalidity {
// TODO: do we want to push less/more info than this? // TODO: do we want to push less/more info than this?
data.push(new_view.uidvalidity_status()?); data.push(new_view.uidvalidity_status()?);
data.push(new_view.uidnext_status()?); data.push(new_view.uidnext_status()?);
} else { } else {
// - if flags changed for existing mails, tell client // - if flags changed for existing mails, tell client
for (i, (_uid, uuid)) in new_view.known_state.idx_by_uid.iter().enumerate() { for (i, (_uid, uuid)) in new_view.known_state.idx_by_uid.iter().enumerate() {
let old_mail = self.known_state.table.get(uuid); let old_mail = old_view.known_state.table.get(uuid);
let new_mail = new_view.known_state.table.get(uuid); let new_mail = new_view.known_state.table.get(uuid);
if old_mail.is_some() && old_mail != new_mail { if old_mail.is_some() && old_mail != new_mail {
if let Some((uid, flags)) = new_mail { if let Some((uid, flags)) = new_mail {
data.push(Body::Data(Data::Fetch { data.push(Body::Data(Data::Fetch {
seq_or_uid: NonZeroU32::try_from((i + 1) as u32).unwrap(), seq: NonZeroU32::try_from((i + 1) as u32).unwrap(),
attributes: vec![ items: vec![
MessageAttribute::Uid(*uid), MessageDataItem::Uid(*uid),
MessageAttribute::Flags( MessageDataItem::Flags(
flags.iter().filter_map(|f| string_to_flag(f)).collect(), flags.iter().filter_map(|f| string_to_flag(f)).collect(),
), ),
], ]
.try_into()?,
})); }));
} }
} }
} }
} }
*old_view = new_view;
*self = new_view;
Ok(data) Ok(data)
} }
pub async fn store( /// Generates the necessary IMAP messages so that the client
/// has a satisfactory summary of the current mailbox's state.
/// These are the messages that are sent in response to a SELECT command.
pub fn summary(&self) -> Result<Vec<Body<'static>>> {
let mut data = Vec::<Body>::new();
data.push(self.exists_status()?);
data.push(self.recent_status()?);
data.extend(self.flags_status()?.into_iter());
data.push(self.uidvalidity_status()?);
data.push(self.uidnext_status()?);
Ok(data)
}
pub async fn store<'a>(
&mut self, &mut self,
sequence_set: &SequenceSet, sequence_set: &SequenceSet,
kind: &StoreType, kind: &StoreType,
_response: &StoreResponse, _response: &StoreResponse,
flags: &[Flag], flags: &[Flag<'a>],
is_uid_store: &bool, is_uid_store: &bool,
) -> Result<Vec<Body>> { ) -> Result<Vec<Body<'static>>> {
self.mailbox.opportunistic_sync().await?; self.mailbox.opportunistic_sync().await?;
let flags = flags.iter().map(|x| x.to_string()).collect::<Vec<_>>(); let flags = flags.iter().map(|x| x.to_string()).collect::<Vec<_>>();
@ -522,7 +555,7 @@ impl MailboxView {
self.update().await self.update().await
} }
pub async fn expunge(&mut self) -> Result<Vec<Body>> { pub async fn expunge(&mut self) -> Result<Vec<Body<'static>>> {
self.mailbox.opportunistic_sync().await?; self.mailbox.opportunistic_sync().await?;
let deleted_flag = Flag::Deleted.to_string(); let deleted_flag = Flag::Deleted.to_string();
@ -569,12 +602,12 @@ impl MailboxView {
/// Looks up state changes in the mailbox and produces a set of IMAP /// Looks up state changes in the mailbox and produces a set of IMAP
/// responses describing the new state. /// responses describing the new state.
pub async fn fetch( pub async fn fetch<'b>(
&self, &self,
sequence_set: &SequenceSet, sequence_set: &SequenceSet,
attributes: &MacroOrFetchAttributes, attributes: &'b MacroOrMessageDataItemNames<'static>,
is_uid_fetch: &bool, is_uid_fetch: &bool,
) -> Result<Vec<Body>> { ) -> Result<Vec<Body<'static>>> {
let ap = AttributesProxy::new(attributes, *is_uid_fetch); let ap = AttributesProxy::new(attributes, *is_uid_fetch);
// Prepare data // Prepare data
@ -619,31 +652,37 @@ impl MailboxView {
selection.with_bodies(bodies.as_slice()); selection.with_bodies(bodies.as_slice());
// Build mail selection views // Build mail selection views
let mut views = selection.build()?; let views = selection.build()?;
// Filter views to build the result // Filter views to build the result
let ret = views // Also identify what must be put as seen
.iter_mut() let filtered_view = views
.filter_map(|mv| mv.filter(&ap).ok())
.collect::<Vec<_>>();
// Register seen flags
let future_flags = views
.iter() .iter()
.filter(|mv| mv.add_seen) .filter_map(|mv| mv.filter(&ap).ok().map(|(body, seen)| (mv, body, seen)))
.map(|mv| async move { .collect::<Vec<_>>();
// Register seen flags
let future_flags = filtered_view
.iter()
.filter(|(_mv, _body, seen)| matches!(seen, SeenFlag::MustAdd))
.map(|(mv, _body, _seen)| async move {
let seen_flag = Flag::Seen.to_string(); let seen_flag = Flag::Seen.to_string();
self.mailbox.add_flags(mv.ids.uuid, &[seen_flag]).await?; self.mailbox.add_flags(mv.ids.uuid, &[seen_flag]).await?;
Ok::<_, anyhow::Error>(()) Ok::<_, anyhow::Error>(())
}) })
.collect::<FuturesOrdered<_>>(); .collect::<FuturesOrdered<_>>();
future_flags future_flags
.collect::<Vec<_>>() .collect::<Vec<_>>()
.await .await
.into_iter() .into_iter()
.collect::<Result<_, _>>()?; .collect::<Result<_, _>>()?;
Ok(ret) let command_body = filtered_view
.into_iter()
.map(|(_mv, body, _seen)| body)
.collect::<Vec<_>>();
Ok(command_body)
} }
// ---- // ----
@ -717,7 +756,7 @@ impl MailboxView {
// ---- // ----
/// Produce an OK [UIDVALIDITY _] message corresponding to `known_state` /// Produce an OK [UIDVALIDITY _] message corresponding to `known_state`
fn uidvalidity_status(&self) -> Result<Body> { fn uidvalidity_status(&self) -> Result<Body<'static>> {
let uid_validity = Status::ok( let uid_validity = Status::ok(
None, None,
Some(Code::UidValidity(self.uidvalidity())), Some(Code::UidValidity(self.uidvalidity())),
@ -732,7 +771,7 @@ impl MailboxView {
} }
/// Produce an OK [UIDNEXT _] message corresponding to `known_state` /// Produce an OK [UIDNEXT _] message corresponding to `known_state`
fn uidnext_status(&self) -> Result<Body> { fn uidnext_status(&self) -> Result<Body<'static>> {
let next_uid = Status::ok( let next_uid = Status::ok(
None, None,
Some(Code::UidNext(self.uidnext())), Some(Code::UidNext(self.uidnext())),
@ -748,7 +787,7 @@ impl MailboxView {
/// Produce an EXISTS message corresponding to the number of mails /// Produce an EXISTS message corresponding to the number of mails
/// in `known_state` /// in `known_state`
fn exists_status(&self) -> Result<Body> { fn exists_status(&self) -> Result<Body<'static>> {
Ok(Body::Data(Data::Exists(self.exists()?))) Ok(Body::Data(Data::Exists(self.exists()?)))
} }
@ -758,7 +797,7 @@ impl MailboxView {
/// Produce a RECENT message corresponding to the number of /// Produce a RECENT message corresponding to the number of
/// recent mails in `known_state` /// recent mails in `known_state`
fn recent_status(&self) -> Result<Body> { fn recent_status(&self) -> Result<Body<'static>> {
Ok(Body::Data(Data::Recent(self.recent()?))) Ok(Body::Data(Data::Recent(self.recent()?)))
} }
@ -774,27 +813,48 @@ impl MailboxView {
/// Produce a FLAGS and a PERMANENTFLAGS message that indicates /// Produce a FLAGS and a PERMANENTFLAGS message that indicates
/// the flags that are in `known_state` + default flags /// the flags that are in `known_state` + default flags
fn flags_status(&self) -> Result<Vec<Body>> { fn flags_status(&self) -> Result<Vec<Body<'static>>> {
let mut flags: Vec<Flag> = self let mut body = vec![];
// 1. Collecting all the possible flags in the mailbox
// 1.a Fetch them from our index
let mut known_flags: Vec<Flag> = self
.known_state .known_state
.idx_by_flag .idx_by_flag
.flags() .flags()
.filter_map(|f| string_to_flag(f)) .filter_map(|f| match string_to_flag(f) {
Some(FlagFetch::Flag(fl)) => Some(fl),
_ => None,
})
.collect(); .collect();
// 1.b Merge it with our default flags list
for f in DEFAULT_FLAGS.iter() { for f in DEFAULT_FLAGS.iter() {
if !flags.contains(f) { if !known_flags.contains(f) {
flags.push(f.clone()); known_flags.push(f.clone());
} }
} }
let mut ret = vec![Body::Data(Data::Flags(flags.clone()))]; // 1.c Create the IMAP message
body.push(Body::Data(Data::Flags(known_flags.clone())));
flags.push(Flag::Permanent); // 2. Returning flags that are persisted
let permanent_flags = // 2.a Always advertise our default flags
Status::ok(None, Some(Code::PermanentFlags(flags)), "Flags permitted") let mut permanent = DEFAULT_FLAGS
.iter()
.map(|f| FlagPerm::Flag(f.clone()))
.collect::<Vec<_>>();
// 2.b Say that we support any keyword flag
permanent.push(FlagPerm::Asterisk);
// 2.c Create the IMAP message
let permanent_flags = Status::ok(
None,
Some(Code::PermanentFlags(permanent)),
"Flags permitted",
)
.map_err(Error::msg)?; .map_err(Error::msg)?;
ret.push(Body::Status(permanent_flags)); body.push(Body::Status(permanent_flags));
Ok(ret) // Done!
Ok(body)
} }
pub(crate) fn unseen_count(&self) -> usize { pub(crate) fn unseen_count(&self) -> usize {
@ -809,21 +869,21 @@ impl MailboxView {
} }
} }
fn string_to_flag(f: &str) -> Option<Flag> { fn string_to_flag(f: &str) -> Option<FlagFetch<'static>> {
match f.chars().next() { match f.chars().next() {
Some('\\') => match f { Some('\\') => match f {
"\\Seen" => Some(Flag::Seen), "\\Seen" => Some(FlagFetch::Flag(Flag::Seen)),
"\\Answered" => Some(Flag::Answered), "\\Answered" => Some(FlagFetch::Flag(Flag::Answered)),
"\\Flagged" => Some(Flag::Flagged), "\\Flagged" => Some(FlagFetch::Flag(Flag::Flagged)),
"\\Deleted" => Some(Flag::Deleted), "\\Deleted" => Some(FlagFetch::Flag(Flag::Deleted)),
"\\Draft" => Some(Flag::Draft), "\\Draft" => Some(FlagFetch::Flag(Flag::Draft)),
"\\Recent" => Some(Flag::Recent), "\\Recent" => Some(FlagFetch::Recent),
_ => match Atom::try_from(f.strip_prefix('\\').unwrap().to_string()) { _ => match Atom::try_from(f.strip_prefix('\\').unwrap().to_string()) {
Err(_) => { Err(_) => {
tracing::error!(flag=%f, "Unable to encode flag as IMAP atom"); tracing::error!(flag=%f, "Unable to encode flag as IMAP atom");
None None
} }
Ok(a) => Some(Flag::Extension(a)), Ok(a) => Some(FlagFetch::Flag(Flag::system(a))),
}, },
}, },
Some(_) => match Atom::try_from(f.to_string()) { Some(_) => match Atom::try_from(f.to_string()) {
@ -831,7 +891,7 @@ fn string_to_flag(f: &str) -> Option<Flag> {
tracing::error!(flag=%f, "Unable to encode flag as IMAP atom"); tracing::error!(flag=%f, "Unable to encode flag as IMAP atom");
None None
} }
Ok(a) => Some(Flag::Keyword(a)), Ok(a) => Some(FlagFetch::Flag(Flag::keyword(a))),
}, },
None => None, None => None,
} }
@ -858,7 +918,7 @@ fn string_to_flag(f: &str) -> Option<Flag> {
//@FIXME return an error if the envelope is invalid instead of panicking //@FIXME return an error if the envelope is invalid instead of panicking
//@FIXME some fields must be defaulted if there are not set. //@FIXME some fields must be defaulted if there are not set.
fn message_envelope(msg: &imf::Imf) -> Envelope { fn message_envelope(msg: &imf::Imf) -> Envelope<'static> {
let from = msg.from.iter().map(convert_mbx).collect::<Vec<_>>(); let from = msg.from.iter().map(convert_mbx).collect::<Vec<_>>();
Envelope { Envelope {
@ -900,7 +960,7 @@ fn message_envelope(msg: &imf::Imf) -> Envelope {
} }
} }
fn convert_addresses(addrlist: &Vec<imf::address::AddressRef>) -> Vec<Address> { fn convert_addresses(addrlist: &Vec<imf::address::AddressRef>) -> Vec<Address<'static>> {
let mut acc = vec![]; let mut acc = vec![];
for item in addrlist { for item in addrlist {
match item { match item {
@ -911,23 +971,23 @@ fn convert_addresses(addrlist: &Vec<imf::address::AddressRef>) -> Vec<Address> {
return acc; return acc;
} }
fn convert_mbx(addr: &imf::mailbox::MailboxRef) -> Address { fn convert_mbx(addr: &imf::mailbox::MailboxRef) -> Address<'static> {
Address::new( Address {
NString( name: NString(
addr.name addr.name
.as_ref() .as_ref()
.map(|x| IString::try_from(x.to_string()).unwrap()), .map(|x| IString::try_from(x.to_string()).unwrap()),
), ),
// SMTP at-domain-list (source route) seems obsolete since at least 1991 // SMTP at-domain-list (source route) seems obsolete since at least 1991
// https://www.mhonarc.org/archive/html/ietf-822/1991-06/msg00060.html // https://www.mhonarc.org/archive/html/ietf-822/1991-06/msg00060.html
NString(None), adl: NString(None),
NString(Some( mailbox: NString(Some(
IString::try_from(addr.addrspec.local_part.to_string()).unwrap(), IString::try_from(addr.addrspec.local_part.to_string()).unwrap(),
)), )),
NString(Some( host: NString(Some(
IString::try_from(addr.addrspec.domain.to_string()).unwrap(), IString::try_from(addr.addrspec.domain.to_string()).unwrap(),
)), )),
) }
} }
/* /*
@ -945,19 +1005,23 @@ b fetch 29878:29879 (BODY)
b OK Fetch completed (0.001 + 0.000 secs). b OK Fetch completed (0.001 + 0.000 secs).
*/ */
fn build_imap_email_struct<'a>(part: &AnyPart<'a>) -> Result<BodyStructure> { fn build_imap_email_struct<'a>(part: &AnyPart<'a>) -> Result<BodyStructure<'static>> {
match part { match part {
AnyPart::Mult(x) => { AnyPart::Mult(x) => {
let itype = &x.mime.interpreted_type; let itype = &x.mime.interpreted_type;
let subtype = IString::try_from(itype.subtype.to_string()) let subtype = IString::try_from(itype.subtype.to_string())
.unwrap_or(unchecked_istring("alternative")); .unwrap_or(unchecked_istring("alternative"));
Ok(BodyStructure::Multi { let inner_bodies = x
bodies: x
.children .children
.iter() .iter()
.filter_map(|inner| build_imap_email_struct(&inner).ok()) .filter_map(|inner| build_imap_email_struct(&inner).ok())
.collect(), .collect::<Vec<_>>();
NonEmptyVec::validate(&inner_bodies)?;
let bodies = NonEmptyVec::unvalidated(inner_bodies);
Ok(BodyStructure::Multi {
bodies,
subtype, subtype,
extension_data: None, extension_data: None,
/*Some(MultipartExtensionData { /*Some(MultipartExtensionData {
@ -996,7 +1060,7 @@ fn build_imap_email_struct<'a>(part: &AnyPart<'a>) -> Result<BodyStructure> {
number_of_lines: nol(x.body), number_of_lines: nol(x.body),
}, },
}, },
extension: None, extension_data: None,
}) })
} }
AnyPart::Bin(x) => { AnyPart::Bin(x) => {
@ -1009,7 +1073,8 @@ fn build_imap_email_struct<'a>(part: &AnyPart<'a>) -> Result<BodyStructure> {
}; };
let ct = x.mime.fields.ctype.as_ref().unwrap_or(&default); let ct = x.mime.fields.ctype.as_ref().unwrap_or(&default);
let type_ = IString::try_from(String::from_utf8_lossy(ct.main).to_string()).or(Err( let r#type =
IString::try_from(String::from_utf8_lossy(ct.main).to_string()).or(Err(
anyhow!("Unable to build IString from given Content-Type type given"), anyhow!("Unable to build IString from given Content-Type type given"),
))?; ))?;
@ -1021,9 +1086,9 @@ fn build_imap_email_struct<'a>(part: &AnyPart<'a>) -> Result<BodyStructure> {
Ok(BodyStructure::Single { Ok(BodyStructure::Single {
body: FetchBody { body: FetchBody {
basic, basic,
specific: SpecificFields::Basic { type_, subtype }, specific: SpecificFields::Basic { r#type, subtype },
}, },
extension: None, extension_data: None,
}) })
} }
AnyPart::Msg(x) => { AnyPart::Msg(x) => {
@ -1033,12 +1098,12 @@ fn build_imap_email_struct<'a>(part: &AnyPart<'a>) -> Result<BodyStructure> {
body: FetchBody { body: FetchBody {
basic, basic,
specific: SpecificFields::Message { specific: SpecificFields::Message {
envelope: message_envelope(&x.imf), envelope: Box::new(message_envelope(&x.imf)),
body_structure: Box::new(build_imap_email_struct(x.child.as_ref())?), body_structure: Box::new(build_imap_email_struct(x.child.as_ref())?),
number_of_lines: nol(x.raw_part), number_of_lines: nol(x.raw_part),
}, },
}, },
extension: None, extension_data: None,
}) })
} }
} }
@ -1059,7 +1124,7 @@ fn unchecked_istring(s: &'static str) -> IString {
IString::try_from(s).expect("this value is expected to be a valid imap-codec::IString") IString::try_from(s).expect("this value is expected to be a valid imap-codec::IString")
} }
fn basic_fields(m: &mime::NaiveMIME, sz: usize) -> Result<BasicFields> { fn basic_fields(m: &mime::NaiveMIME, sz: usize) -> Result<BasicFields<'static>> {
let parameter_list = m let parameter_list = m
.ctype .ctype
.as_ref() .as_ref()
@ -1136,8 +1201,7 @@ fn get_message_section<'a>(
.ok_or(anyhow!("Part must be a message"))?; .ok_or(anyhow!("Part must be a message"))?;
match section { match section {
Some(FetchSection::Text(None)) => Ok(msg.raw_body.into()), Some(FetchSection::Text(None)) => Ok(msg.raw_body.into()),
Some(FetchSection::Text(Some(part))) => { Some(FetchSection::Text(Some(part))) => map_subpart(parsed, part.0.as_ref(), |part_msg| {
map_subpart(parsed, part.0.as_slice(), |part_msg| {
Ok(part_msg Ok(part_msg
.as_message() .as_message()
.ok_or(Error::msg( .ok_or(Error::msg(
@ -1145,11 +1209,10 @@ fn get_message_section<'a>(
))? ))?
.raw_body .raw_body
.into()) .into())
}) }),
}
Some(FetchSection::Header(part)) => map_subpart( Some(FetchSection::Header(part)) => map_subpart(
parsed, parsed,
part.as_ref().map(|p| p.0.as_slice()).unwrap_or(&[]), part.as_ref().map(|p| p.0.as_ref()).unwrap_or(&[]),
|part_msg| { |part_msg| {
Ok(part_msg Ok(part_msg
.as_message() .as_message()
@ -1165,17 +1228,18 @@ fn get_message_section<'a>(
) => { ) => {
let invert = matches!(section, Some(FetchSection::HeaderFieldsNot(_, _))); let invert = matches!(section, Some(FetchSection::HeaderFieldsNot(_, _)));
let fields = fields let fields = fields
.as_ref()
.iter() .iter()
.map(|x| match x { .map(|x| match x {
AString::Atom(a) => a.as_bytes(), AString::Atom(a) => a.inner().as_bytes(),
AString::String(IString::Literal(l)) => l.as_slice(), AString::String(IString::Literal(l)) => l.as_ref(),
AString::String(IString::Quoted(q)) => q.as_bytes(), AString::String(IString::Quoted(q)) => q.inner().as_bytes(),
}) })
.collect::<Vec<_>>(); .collect::<Vec<_>>();
map_subpart( map_subpart(
parsed, parsed,
part.as_ref().map(|p| p.0.as_slice()).unwrap_or(&[]), part.as_ref().map(|p| p.0.as_ref()).unwrap_or(&[]),
|part_msg| { |part_msg| {
let mut ret = vec![]; let mut ret = vec![];
for f in &part_msg.mime().kv { for f in &part_msg.mime().kv {
@ -1195,7 +1259,7 @@ fn get_message_section<'a>(
}, },
) )
} }
Some(FetchSection::Part(part)) => map_subpart(parsed, part.0.as_slice(), |part| { Some(FetchSection::Part(part)) => map_subpart(parsed, part.0.as_ref(), |part| {
let bytes = match &part { let bytes = match &part {
AnyPart::Txt(p) => p.body, AnyPart::Txt(p) => p.body,
AnyPart::Bin(p) => p.body, AnyPart::Bin(p) => p.body,
@ -1204,7 +1268,7 @@ fn get_message_section<'a>(
}; };
Ok(bytes.to_vec().into()) Ok(bytes.to_vec().into())
}), }),
Some(FetchSection::Mime(part)) => map_subpart(parsed, part.0.as_slice(), |part| { Some(FetchSection::Mime(part)) => map_subpart(parsed, part.0.as_ref(), |part| {
let bytes = match &part { let bytes = match &part {
AnyPart::Txt(p) => p.mime.fields.raw, AnyPart::Txt(p) => p.mime.fields.raw,
AnyPart::Bin(p) => p.mime.fields.raw, AnyPart::Bin(p) => p.mime.fields.raw,
@ -1245,18 +1309,22 @@ mod tests {
use super::*; use super::*;
use crate::cryptoblob; use crate::cryptoblob;
use crate::mail::unique_ident; use crate::mail::unique_ident;
use imap_codec::codec::Encode; use imap_codec::encode::Encoder;
use imap_codec::types::fetch_attributes::Section; use imap_codec::imap_types::fetch::Section;
use imap_codec::imap_types::response::Response;
use imap_codec::ResponseCodec;
use std::fs; use std::fs;
#[test] #[test]
fn mailview_body_ext() -> Result<()> { fn mailview_body_ext() -> Result<()> {
let ap = AttributesProxy::new( let ap = AttributesProxy::new(
&MacroOrFetchAttributes::FetchAttributes(vec![FetchAttribute::BodyExt { &MacroOrMessageDataItemNames::MessageDataItemNames(vec![
MessageDataItemName::BodyExt {
section: Some(Section::Header(None)), section: Some(Section::Header(None)),
partial: None, partial: None,
peek: false, peek: false,
}]), },
]),
false, false,
); );
@ -1276,27 +1344,26 @@ mod tests {
let rfc822 = b"Subject: hello\r\nFrom: a@a.a\r\nTo: b@b.b\r\nDate: Thu, 12 Oct 2023 08:45:28 +0000\r\n\r\nhello world"; let rfc822 = b"Subject: hello\r\nFrom: a@a.a\r\nTo: b@b.b\r\nDate: Thu, 12 Oct 2023 08:45:28 +0000\r\n\r\nhello world";
let content = FetchedMail::new_from_message(eml_codec::parse_message(rfc822)?.1); let content = FetchedMail::new_from_message(eml_codec::parse_message(rfc822)?.1);
let mut mv = MailView { let mv = MailView {
ids: &ids, ids: &ids,
content, content,
meta: &meta, meta: &meta,
flags: &flags, flags: &flags,
add_seen: false,
}; };
let res_body = mv.filter(&ap)?; let (res_body, _seen) = mv.filter(&ap)?;
let fattr = match res_body { let fattr = match res_body {
Body::Data(Data::Fetch { Body::Data(Data::Fetch {
seq_or_uid: _seq, seq: _seq,
attributes: attr, items: attr,
}) => Ok(attr), }) => Ok(attr),
_ => Err(anyhow!("Not a fetch body")), _ => Err(anyhow!("Not a fetch body")),
}?; }?;
assert_eq!(fattr.len(), 1); assert_eq!(fattr.as_ref().len(), 1);
let (sec, _orig, _data) = match &fattr[0] { let (sec, _orig, _data) = match &fattr.as_ref()[0] {
MessageAttribute::BodyExt { MessageDataItem::BodyExt {
section, section,
origin, origin,
data, data,
@ -1345,22 +1412,24 @@ mod tests {
for pref in prefixes.iter() { for pref in prefixes.iter() {
println!("{}", pref); println!("{}", pref);
let txt = fs::read(format!("{}.eml", pref))?; let txt = fs::read(format!("{}.eml", pref))?;
let exp = fs::read(format!("{}.dovecot.body", pref))?; let oracle = fs::read(format!("{}.dovecot.body", pref))?;
let message = eml_codec::parse_message(&txt).unwrap().1; let message = eml_codec::parse_message(&txt).unwrap().1;
let mut resp = Vec::new(); let test_repr = Response::Data(Data::Fetch {
MessageAttribute::Body(build_imap_email_struct(&message.child)?) seq: NonZeroU32::new(1).unwrap(),
.encode(&mut resp) items: NonEmptyVec::from(MessageDataItem::Body(build_imap_email_struct(
.unwrap(); &message.child,
)?)),
});
let test_bytes = ResponseCodec::new().encode(&test_repr).dump();
let test_str = String::from_utf8_lossy(&test_bytes).to_lowercase();
let resp_str = String::from_utf8_lossy(&resp).to_lowercase(); let oracle_str =
format!("* 1 FETCH {}\r\n", String::from_utf8_lossy(&oracle)).to_lowercase();
let exp_no_parenthesis = &exp[1..exp.len() - 1]; println!("aerogramme: {}\n\ndovecot: {}\n\n", test_str, oracle_str);
let exp_str = String::from_utf8_lossy(exp_no_parenthesis).to_lowercase();
println!("aerogramme: {}\n\ndovecot: {}\n\n", resp_str, exp_str);
//println!("\n\n {} \n\n", String::from_utf8_lossy(&resp)); //println!("\n\n {} \n\n", String::from_utf8_lossy(&resp));
assert_eq!(resp_str, exp_str); assert_eq!(test_str, oracle_str);
} }
Ok(()) Ok(())

225
src/imap/mod.rs
View file

@ -1,105 +1,186 @@
mod command; mod command;
mod flow; mod flow;
mod mailbox_view; mod mailbox_view;
mod response;
mod session; mod session;
use std::task::{Context, Poll}; use std::net::SocketAddr;
use anyhow::Result; use anyhow::Result;
use boitalettres::errors::Error as BalError; use futures::stream::{FuturesUnordered, StreamExt};
use boitalettres::proto::{Request, Response};
use boitalettres::server::accept::addr::AddrIncoming; use tokio::net::TcpListener;
use boitalettres::server::accept::addr::AddrStream;
use boitalettres::server::Server as ImapServer;
use futures::future::BoxFuture;
use futures::future::FutureExt;
use tokio::sync::watch; use tokio::sync::watch;
use tower::Service;
use imap_codec::imap_types::response::Greeting;
use imap_flow::server::{ServerFlow, ServerFlowEvent, ServerFlowOptions};
use imap_flow::stream::AnyStream;
use crate::config::ImapConfig; use crate::config::ImapConfig;
use crate::login::ArcLoginProvider; use crate::login::ArcLoginProvider;
/// Server is a thin wrapper to register our Services in BàL /// Server is a thin wrapper to register our Services in BàL
pub struct Server(ImapServer<AddrIncoming, Instance>); pub struct Server {
bind_addr: SocketAddr,
login_provider: ArcLoginProvider,
}
pub async fn new(config: ImapConfig, login: ArcLoginProvider) -> Result<Server> { struct ClientContext {
//@FIXME add a configuration parameter stream: AnyStream,
let incoming = AddrIncoming::new(config.bind_addr).await?; addr: SocketAddr,
tracing::info!("IMAP activated, will listen on {:#}", incoming.local_addr); login_provider: ArcLoginProvider,
must_exit: watch::Receiver<bool>,
}
let imap = ImapServer::new(incoming).serve(Instance::new(login.clone())); pub fn new(config: ImapConfig, login: ArcLoginProvider) -> Server {
Ok(Server(imap)) Server {
bind_addr: config.bind_addr,
login_provider: login,
}
} }
impl Server { impl Server {
pub async fn run(self, mut must_exit: watch::Receiver<bool>) -> Result<()> { pub async fn run(self: Self, mut must_exit: watch::Receiver<bool>) -> Result<()> {
tracing::info!("IMAP started!"); let tcp = TcpListener::bind(self.bind_addr).await?;
tokio::select! { tracing::info!("IMAP server listening on {:#}", self.bind_addr);
s = self.0 => s?,
_ = must_exit.changed() => tracing::info!("Stopped IMAP server"), let mut connections = FuturesUnordered::new();
while !*must_exit.borrow() {
let wait_conn_finished = async {
if connections.is_empty() {
futures::future::pending().await
} else {
connections.next().await
} }
};
let (socket, remote_addr) = tokio::select! {
a = tcp.accept() => a?,
_ = wait_conn_finished => continue,
_ = must_exit.changed() => continue,
};
tracing::info!("IMAP: accepted connection from {}", remote_addr);
let client = ClientContext {
stream: AnyStream::new(socket),
addr: remote_addr.clone(),
login_provider: self.login_provider.clone(),
must_exit: must_exit.clone(),
};
let conn = tokio::spawn(client_wrapper(client));
connections.push(conn);
}
drop(tcp);
tracing::info!("IMAP server shutting down, draining remaining connections...");
while connections.next().await.is_some() {}
Ok(()) Ok(())
} }
} }
//--- async fn client_wrapper(ctx: ClientContext) {
let addr = ctx.addr.clone();
/// Instance is the main Tokio Tower service that we register in BàL. match client(ctx).await {
/// It receives new connection demands and spawn a dedicated service. Ok(()) => {
struct Instance { tracing::info!("closing successful session for {:?}", addr);
login_provider: ArcLoginProvider,
}
impl Instance {
pub fn new(login_provider: ArcLoginProvider) -> Self {
Self { login_provider }
} }
} Err(e) => {
tracing::error!("closing errored session for {:?}: {}", addr, e);
impl<'a> Service<&'a AddrStream> for Instance {
type Response = Connection;
type Error = anyhow::Error;
type Future = BoxFuture<'static, Result<Self::Response>>;
fn poll_ready(&mut self, _cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
Poll::Ready(Ok(()))
}
fn call(&mut self, addr: &'a AddrStream) -> Self::Future {
tracing::info!(remote_addr = %addr.remote_addr, local_addr = %addr.local_addr, "accept");
let lp = self.login_provider.clone();
async { Ok(Connection::new(lp)) }.boxed()
}
}
//---
/// Connection is the per-connection Tokio Tower service we register in BàL.
/// It handles a single TCP connection, and thus has a business logic.
struct Connection {
session: session::Manager,
}
impl Connection {
pub fn new(login_provider: ArcLoginProvider) -> Self {
Self {
session: session::Manager::new(login_provider),
} }
} }
} }
impl Service<Request> for Connection { async fn client(mut ctx: ClientContext) -> Result<()> {
type Response = Response; // Send greeting
type Error = BalError; let (mut server, _) = ServerFlow::send_greeting(
type Future = BoxFuture<'static, Result<Self::Response, Self::Error>>; ctx.stream,
ServerFlowOptions::default(),
Greeting::ok(None, "Aerogramme").unwrap(),
)
.await?;
fn poll_ready(&mut self, _cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> { use crate::imap::response::{Body, Response as MyResponse};
Poll::Ready(Ok(())) use crate::imap::session::Instance;
use imap_codec::imap_types::command::Command;
use imap_codec::imap_types::response::{Response, Status};
use tokio::sync::mpsc;
let (cmd_tx, mut cmd_rx) = mpsc::channel::<Command<'static>>(10);
let (resp_tx, mut resp_rx) = mpsc::unbounded_channel::<MyResponse<'static>>();
let bckgrnd = tokio::spawn(async move {
let mut session = Instance::new(ctx.login_provider);
loop {
let cmd = match cmd_rx.recv().await {
None => break,
Some(cmd_recv) => cmd_recv,
};
let maybe_response = session.command(cmd).await;
match resp_tx.send(maybe_response) {
Err(_) => break,
Ok(_) => (),
};
}
tracing::info!("runner is quitting");
});
// Main loop
loop {
tokio::select! {
// Managing imap_flow stuff
srv_evt = server.progress() => match srv_evt? {
ServerFlowEvent::ResponseSent { handle: _handle, response } => {
match response {
Response::Status(Status::Bye(_)) => break,
_ => tracing::trace!("sent to {} content {:?}", ctx.addr, response),
}
},
ServerFlowEvent::CommandReceived { command } => {
match cmd_tx.try_send(command) {
Ok(_) => (),
Err(mpsc::error::TrySendError::Full(_)) => {
server.enqueue_status(Status::bye(None, "Too fast").unwrap());
tracing::error!("client {:?} is sending commands too fast, closing.", ctx.addr);
}
_ => {
server.enqueue_status(Status::bye(None, "Internal session exited").unwrap());
tracing::error!("session task exited for {:?}, quitting", ctx.addr);
}
}
},
},
// Managing response generated by Aerogramme
maybe_msg = resp_rx.recv() => {
let response = match maybe_msg {
None => {
server.enqueue_status(Status::bye(None, "Internal session exited").unwrap());
tracing::error!("session task exited for {:?}, quitting", ctx.addr);
continue
},
Some(r) => r,
};
for body_elem in response.body.into_iter() {
let _handle = match body_elem {
Body::Data(d) => server.enqueue_data(d),
Body::Status(s) => server.enqueue_status(s),
};
}
server.enqueue_status(response.completion);
},
// When receiving a CTRL+C
_ = ctx.must_exit.changed() => {
server.enqueue_status(Status::bye(None, "Server is being shutdown").unwrap());
},
};
} }
fn call(&mut self, req: Request) -> Self::Future { drop(cmd_tx);
tracing::debug!("Got request: {:#?}", req.command); bckgrnd.await?;
self.session.process(req) Ok(())
}
} }

112
src/imap/response.rs Normal file
View file

@ -0,0 +1,112 @@
use anyhow::Result;
use imap_codec::imap_types::command::Command;
use imap_codec::imap_types::core::Tag;
use imap_codec::imap_types::response::{Code, Data, Status};
pub enum Body<'a> {
Data(Data<'a>),
Status(Status<'a>),
}
pub struct ResponseBuilder<'a> {
tag: Option<Tag<'a>>,
code: Option<Code<'a>>,
text: String,
body: Vec<Body<'a>>,
}
impl<'a> ResponseBuilder<'a> {
pub fn to_req(mut self, cmd: &Command<'a>) -> Self {
self.tag = Some(cmd.tag.clone());
self
}
pub fn tag(mut self, tag: Tag<'a>) -> Self {
self.tag = Some(tag);
self
}
pub fn message(mut self, txt: impl Into<String>) -> Self {
self.text = txt.into();
self
}
pub fn code(mut self, code: Code<'a>) -> Self {
self.code = Some(code);
self
}
pub fn data(mut self, data: Data<'a>) -> Self {
self.body.push(Body::Data(data));
self
}
pub fn many_data(mut self, data: Vec<Data<'a>>) -> Self {
for d in data.into_iter() {
self = self.data(d);
}
self
}
#[allow(dead_code)]
pub fn info(mut self, status: Status<'a>) -> Self {
self.body.push(Body::Status(status));
self
}
#[allow(dead_code)]
pub fn many_info(mut self, status: Vec<Status<'a>>) -> Self {
for d in status.into_iter() {
self = self.info(d);
}
self
}
pub fn set_body(mut self, body: Vec<Body<'a>>) -> Self {
self.body = body;
self
}
pub fn ok(self) -> Result<Response<'a>> {
Ok(Response {
completion: Status::ok(self.tag, self.code, self.text)?,
body: self.body,
})
}
pub fn no(self) -> Result<Response<'a>> {
Ok(Response {
completion: Status::no(self.tag, self.code, self.text)?,
body: self.body,
})
}
pub fn bad(self) -> Result<Response<'a>> {
Ok(Response {
completion: Status::bad(self.tag, self.code, self.text)?,
body: self.body,
})
}
}
pub struct Response<'a> {
pub body: Vec<Body<'a>>,
pub completion: Status<'a>,
}
impl<'a> Response<'a> {
pub fn build() -> ResponseBuilder<'a> {
ResponseBuilder {
tag: None,
code: None,
text: "".to_string(),
body: vec![],
}
}
pub fn bye() -> Result<Response<'a>> {
Ok(Response {
completion: Status::bye(None, "bye")?,
body: vec![],
})
}
}

172
src/imap/session.rs
View file

@ -1,121 +1,40 @@
use anyhow::Error;
use boitalettres::errors::Error as BalError;
use boitalettres::proto::{Request, Response};
use futures::future::BoxFuture;
use futures::future::FutureExt;
use tokio::sync::mpsc::error::TrySendError;
use tokio::sync::{mpsc, oneshot};
use crate::imap::command::{anonymous, authenticated, examined, selected}; use crate::imap::command::{anonymous, authenticated, examined, selected};
use crate::imap::flow; use crate::imap::flow;
use crate::imap::response::Response;
use crate::login::ArcLoginProvider; use crate::login::ArcLoginProvider;
use imap_codec::imap_types::command::Command;
/* This constant configures backpressure in the system,
* or more specifically, how many pipelined messages are allowed
* before refusing them
*/
const MAX_PIPELINED_COMMANDS: usize = 10;
struct Message {
req: Request,
tx: oneshot::Sender<Result<Response, BalError>>,
}
//----- //-----
pub struct Manager {
tx: mpsc::Sender<Message>,
}
impl Manager {
pub fn new(login_provider: ArcLoginProvider) -> Self {
let (tx, rx) = mpsc::channel(MAX_PIPELINED_COMMANDS);
tokio::spawn(async move {
let instance = Instance::new(login_provider, rx);
instance.start().await;
});
Self { tx }
}
pub fn process(&self, req: Request) -> BoxFuture<'static, Result<Response, BalError>> {
let (tx, rx) = oneshot::channel();
let msg = Message { req, tx };
// We use try_send on a bounded channel to protect the daemons from DoS.
// Pipelining requests in IMAP are a special case: they should not occure often
// and in a limited number (like 3 requests). Someone filling the channel
// will probably be malicious so we "rate limit" them.
match self.tx.try_send(msg) {
Ok(()) => (),
Err(TrySendError::Full(_)) => {
return async { Response::bad("Too fast! Send less pipelined requests.") }.boxed()
}
Err(TrySendError::Closed(_)) => {
return async { Err(BalError::Text("Terminated session".to_string())) }.boxed()
}
};
// @FIXME add a timeout, handle a session that fails.
async {
match rx.await {
Ok(r) => r,
Err(e) => {
tracing::warn!("Got error {:#?}", e);
Response::bad("No response from the session handler")
}
}
}
.boxed()
}
}
//-----
pub struct Instance { pub struct Instance {
rx: mpsc::Receiver<Message>,
pub login_provider: ArcLoginProvider, pub login_provider: ArcLoginProvider,
pub state: flow::State, pub state: flow::State,
} }
impl Instance { impl Instance {
fn new(login_provider: ArcLoginProvider, rx: mpsc::Receiver<Message>) -> Self { pub fn new(login_provider: ArcLoginProvider) -> Self {
Self { Self {
login_provider, login_provider,
rx,
state: flow::State::NotAuthenticated, state: flow::State::NotAuthenticated,
} }
} }
//@FIXME add a function that compute the runner's name from its local info pub async fn command(&mut self, cmd: Command<'static>) -> Response<'static> {
// to ease debug
// fn name(&self) -> String { }
async fn start(mut self) {
//@FIXME add more info about the runner
tracing::debug!("starting runner");
while let Some(msg) = self.rx.recv().await {
// Command behavior is modulated by the state. // Command behavior is modulated by the state.
// To prevent state error, we handle the same command in separate code paths. // To prevent state error, we handle the same command in separate code paths.
let ctrl = match &mut self.state { let (resp, tr) = match &mut self.state {
flow::State::NotAuthenticated => { flow::State::NotAuthenticated => {
let ctx = anonymous::AnonymousContext { let ctx = anonymous::AnonymousContext {
req: &msg.req, req: &cmd,
login_provider: Some(&self.login_provider), login_provider: &self.login_provider,
}; };
anonymous::dispatch(ctx).await anonymous::dispatch(ctx).await
} }
flow::State::Authenticated(ref user) => { flow::State::Authenticated(ref user) => {
let ctx = authenticated::AuthenticatedContext { let ctx = authenticated::AuthenticatedContext { req: &cmd, user };
req: &msg.req,
user,
};
authenticated::dispatch(ctx).await authenticated::dispatch(ctx).await
} }
flow::State::Selected(ref user, ref mut mailbox) => { flow::State::Selected(ref user, ref mut mailbox) => {
let ctx = selected::SelectedContext { let ctx = selected::SelectedContext {
req: &msg.req, req: &cmd,
user, user,
mailbox, mailbox,
}; };
@ -123,58 +42,45 @@ impl Instance {
} }
flow::State::Examined(ref user, ref mut mailbox) => { flow::State::Examined(ref user, ref mut mailbox) => {
let ctx = examined::ExaminedContext { let ctx = examined::ExaminedContext {
req: &msg.req, req: &cmd,
user, user,
mailbox, mailbox,
}; };
examined::dispatch(ctx).await examined::dispatch(ctx).await
} }
flow::State::Logout => { flow::State::Logout => Response::build()
Response::bad("No commands are allowed in the LOGOUT state.") .tag(cmd.tag.clone())
.map(|r| (r, flow::Transition::None)) .message("No commands are allowed in the LOGOUT state.")
.map_err(Error::msg) .bad()
.map(|r| (r, flow::Transition::None)),
} }
}; .unwrap_or_else(|err| {
tracing::error!("Command error {:?} occured while processing {:?}", err, cmd);
// Process result (
let res = match ctrl { Response::build()
Ok((res, tr)) => { .to_req(&cmd)
//@FIXME remove unwrap .message("Internal error while processing command")
self.state = match self.state.apply(tr) { .bad()
Ok(new_state) => new_state, .unwrap(),
Err(e) => { flow::Transition::None,
tracing::error!("Invalid transition: {}, exiting", e); )
break;
}
};
//@FIXME enrich here the command with some global status
Ok(res)
}
// Cast from anyhow::Error to Bal::Error
// @FIXME proper error handling would be great
Err(e) => match e.downcast::<BalError>() {
Ok(be) => Err(be),
Err(e) => {
tracing::warn!(error=%e, "internal.error");
Response::bad("Internal error")
}
},
};
//@FIXME I think we should quit this thread on error and having our manager watch it,
// and then abort the session as it is corrupted.
msg.tx.send(res).unwrap_or_else(|e| {
tracing::warn!("failed to send imap response to manager: {:#?}", e)
}); });
if let flow::State::Logout = &self.state { if let Err(e) = self.state.apply(tr) {
break; tracing::error!(
} "Transition error {:?} occured while processing on command {:?}",
e,
cmd
);
return Response::build()
.to_req(&cmd)
.message(
"Internal error, processing command triggered an illegal IMAP state transition",
)
.bad()
.unwrap();
} }
//@FIXME add more info about the runner resp
tracing::debug!("exiting runner");
} }
} }

51
src/login/demo_provider.rs Normal file
View file

@ -0,0 +1,51 @@
use crate::login::*;
use crate::storage::*;
pub struct DemoLoginProvider {
keys: CryptoKeys,
in_memory_store: in_memory::MemDb,
}
impl DemoLoginProvider {
pub fn new() -> Self {
Self {
keys: CryptoKeys::init(),
in_memory_store: in_memory::MemDb::new(),
}
}
}
#[async_trait]
impl LoginProvider for DemoLoginProvider {
async fn login(&self, username: &str, password: &str) -> Result<Credentials> {
tracing::debug!(user=%username, "login");
if username != "alice" {
bail!("user does not exist");
}
if password != "hunter2" {
bail!("wrong password");
}
let storage = self.in_memory_store.builder("alice").await;
let keys = self.keys.clone();
Ok(Credentials { storage, keys })
}
async fn public_login(&self, email: &str) -> Result<PublicCredentials> {
tracing::debug!(user=%email, "public_login");
if email != "alice@example.tld" {
bail!("invalid email address");
}
let storage = self.in_memory_store.builder("alice").await;
let public_key = self.keys.public.clone();
Ok(PublicCredentials {
storage,
public_key,
})
}
}

1
src/login/mod.rs
View file

@ -1,3 +1,4 @@
pub mod demo_provider;
pub mod ldap_provider; pub mod ldap_provider;
pub mod static_provider; pub mod static_provider;

26
src/main.rs
View file

@ -29,7 +29,12 @@ struct Args {
#[clap(subcommand)] #[clap(subcommand)]
command: Command, command: Command,
/// A special mode dedicated to developers, NOT INTENDED FOR PRODUCTION
#[clap(long)]
dev: bool,
#[clap(short, long, env = "CONFIG_FILE", default_value = "aerogramme.toml")] #[clap(short, long, env = "CONFIG_FILE", default_value = "aerogramme.toml")]
/// Path to the main Aerogramme configuration file
config_file: PathBuf, config_file: PathBuf,
} }
@ -158,7 +163,22 @@ async fn main() -> Result<()> {
tracing_subscriber::fmt::init(); tracing_subscriber::fmt::init();
let args = Args::parse(); let args = Args::parse();
let any_config = read_config(args.config_file)?; let any_config = if args.dev {
use std::net::*;
AnyConfig::Provider(ProviderConfig {
pid: None,
imap: ImapConfig {
bind_addr: SocketAddr::new(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1)), 1143),
},
lmtp: LmtpConfig {
bind_addr: SocketAddr::new(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1)), 1025),
hostname: "example.tld".to_string(),
},
users: UserManagement::Demo,
})
} else {
read_config(args.config_file)?
};
match (&args.command, any_config) { match (&args.command, any_config) {
(Command::Companion(subcommand), AnyConfig::Companion(config)) => match subcommand { (Command::Companion(subcommand), AnyConfig::Companion(config)) => match subcommand {
@ -184,8 +204,8 @@ async fn main() -> Result<()> {
ProviderCommand::Account(cmd) => { ProviderCommand::Account(cmd) => {
let user_file = match config.users { let user_file = match config.users {
UserManagement::Static(conf) => conf.user_list, UserManagement::Static(conf) => conf.user_list,
UserManagement::Ldap(_) => { _ => {
panic!("LDAP account management is not supported from Aerogramme.") panic!("Only static account management is supported from Aerogramme.")
} }
}; };
account_management(&args.command, cmd, user_file)?; account_management(&args.command, cmd, user_file)?;

7
src/server.rs
View file

@ -11,7 +11,7 @@ use crate::config::*;
use crate::imap; use crate::imap;
use crate::lmtp::*; use crate::lmtp::*;
use crate::login::ArcLoginProvider; use crate::login::ArcLoginProvider;
use crate::login::{ldap_provider::*, static_provider::*}; use crate::login::{demo_provider::*, ldap_provider::*, static_provider::*};
pub struct Server { pub struct Server {
lmtp_server: Option<Arc<LmtpServer>>, lmtp_server: Option<Arc<LmtpServer>>,
@ -25,7 +25,7 @@ impl Server {
let login = Arc::new(StaticLoginProvider::new(config.users).await?); let login = Arc::new(StaticLoginProvider::new(config.users).await?);
let lmtp_server = None; let lmtp_server = None;
let imap_server = Some(imap::new(config.imap, login.clone()).await?); let imap_server = Some(imap::new(config.imap, login.clone()));
Ok(Self { Ok(Self {
lmtp_server, lmtp_server,
imap_server, imap_server,
@ -36,12 +36,13 @@ impl Server {
pub async fn from_provider_config(config: ProviderConfig) -> Result<Self> { pub async fn from_provider_config(config: ProviderConfig) -> Result<Self> {
tracing::info!("Init as provider"); tracing::info!("Init as provider");
let login: ArcLoginProvider = match config.users { let login: ArcLoginProvider = match config.users {
UserManagement::Demo => Arc::new(DemoLoginProvider::new()),
UserManagement::Static(x) => Arc::new(StaticLoginProvider::new(x).await?), UserManagement::Static(x) => Arc::new(StaticLoginProvider::new(x).await?),
UserManagement::Ldap(x) => Arc::new(LdapLoginProvider::new(x)?), UserManagement::Ldap(x) => Arc::new(LdapLoginProvider::new(x)?),
}; };
let lmtp_server = Some(LmtpServer::new(config.lmtp, login.clone())); let lmtp_server = Some(LmtpServer::new(config.lmtp, login.clone()));
let imap_server = Some(imap::new(config.imap, login.clone()).await?); let imap_server = Some(imap::new(config.imap, login.clone()));
Ok(Self { Ok(Self {
lmtp_server, lmtp_server,

394
tests/imap_features.rs Normal file
View file

@ -0,0 +1,394 @@
use anyhow::{bail, Context, Result};
use std::io::{Read, Write};
use std::net::{Shutdown, TcpStream};
use std::process::Command;
use std::{thread, time};
static SMALL_DELAY: time::Duration = time::Duration::from_millis(200);
static EMAIL1: &[u8] = b"Date: Sat, 8 Jul 2023 07:14:29 +0200\r
From: Bob Robert <bob@example.tld>\r
To: Alice Malice <alice@example.tld>\r
CC: =?ISO-8859-1?Q?Andr=E9?= Pirard <PIRARD@vm1.ulg.ac.be>\r
Subject: =?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?=\r
=?ISO-8859-2?B?dSB1bmRlcnN0YW5kIHRoZSBleGFtcGxlLg==?=\r
X-Unknown: something something\r
Bad entry\r
on multiple lines\r
Message-ID: <NTAxNzA2AC47634Y366BAMTY4ODc5MzQyODY0ODY5@www.grrrndzero.org>\r
MIME-Version: 1.0\r
Content-Type: multipart/alternative;\r
boundary=\"b1_e376dc71bafc953c0b0fdeb9983a9956\"\r
Content-Transfer-Encoding: 7bit\r
\r
This is a multi-part message in MIME format.\r
\r
--b1_e376dc71bafc953c0b0fdeb9983a9956\r
Content-Type: text/plain; charset=utf-8\r
Content-Transfer-Encoding: quoted-printable\r
\r
GZ\r
OoOoO\r
oOoOoOoOo\r
oOoOoOoOoOoOoOoOo\r
oOoOoOoOoOoOoOoOoOoOoOo\r
oOoOoOoOoOoOoOoOoOoOoOoOoOoOo\r
OoOoOoOoOoOoOoOoOoOoOoOoOoOoOoOoO\r
\r
--b1_e376dc71bafc953c0b0fdeb9983a9956\r
Content-Type: text/html; charset=us-ascii\r
\r
<div style=\"text-align: center;\"><strong>GZ</strong><br />\r
OoOoO<br />\r
oOoOoOoOo<br />\r
oOoOoOoOoOoOoOoOo<br />\r
oOoOoOoOoOoOoOoOoOoOoOo<br />\r
oOoOoOoOoOoOoOoOoOoOoOoOoOoOo<br />\r
OoOoOoOoOoOoOoOoOoOoOoOoOoOoOoOoO<br />\r
</div>\r
\r
--b1_e376dc71bafc953c0b0fdeb9983a9956--\r
";
static EMAIL2: &[u8] = b"From: alice@example.com\r
To: alice@example.tld\r
Subject: Test\r
\r
Hello world!\r
";
fn main() {
let mut daemon = Command::new(env!("CARGO_BIN_EXE_aerogramme"))
.arg("--dev")
.arg("provider")
.arg("daemon")
.spawn()
.expect("daemon should be started");
let mut max_retry = 20;
let mut imap_socket = loop {
max_retry -= 1;
match (TcpStream::connect("[::1]:1143"), max_retry) {
(Err(e), 0) => panic!("no more retry, last error is: {}", e),
(Err(e), _) => {
println!("unable to connect: {} ; will retry in 1 sec", e);
}
(Ok(v), _) => break v,
}
thread::sleep(SMALL_DELAY);
};
let mut lmtp_socket = TcpStream::connect("[::1]:1025").expect("lmtp socket must be connected");
println!("-- ready to test imap features --");
let result = generic_test(&mut imap_socket, &mut lmtp_socket);
println!("-- test teardown --");
imap_socket
.shutdown(Shutdown::Both)
.expect("closing imap socket at the end of the test");
lmtp_socket
.shutdown(Shutdown::Both)
.expect("closing lmtp socket at the end of the test");
daemon.kill().expect("daemon should be killed");
result.expect("all tests passed");
}
fn generic_test(imap_socket: &mut TcpStream, lmtp_socket: &mut TcpStream) -> Result<()> {
connect(imap_socket).context("server says hello")?;
capability(imap_socket).context("check server capabilities")?;
login(imap_socket).context("login test")?;
create_mailbox(imap_socket).context("created mailbox archive")?;
// UNSUBSCRIBE IS NOT IMPLEMENTED YET
//unsubscribe_mailbox(imap_socket).context("unsubscribe from archive")?;
select_inbox(imap_socket).context("select inbox")?;
check(imap_socket).context("check must run")?;
status_mailbox(imap_socket).context("status of archive from inbox")?;
lmtp_handshake(lmtp_socket).context("handshake lmtp done")?;
lmtp_deliver_email(lmtp_socket, EMAIL1).context("mail delivered successfully")?;
noop_exists(imap_socket).context("noop loop must detect a new email")?;
fetch_rfc822(imap_socket, EMAIL1).context("fetch rfc822 message")?;
copy_email(imap_socket).context("copy message to the archive mailbox")?;
append_email(imap_socket, EMAIL2).context("insert email in INBOX")?;
// SEARCH IS NOT IMPLEMENTED YET
//search(imap_socket).expect("search should return something");
add_flags_email(imap_socket).context("should add delete and important flags to the email")?;
expunge(imap_socket).context("expunge emails")?;
rename_mailbox(imap_socket).context("archive mailbox is renamed my-archives")?;
delete_mailbox(imap_socket).context("my-archives mailbox is deleted")?;
Ok(())
}
fn connect(imap: &mut TcpStream) -> Result<()> {
let mut buffer: [u8; 1500] = [0; 1500];
let read = read_lines(imap, &mut buffer, None)?;
assert_eq!(&read[..4], &b"* OK"[..]);
Ok(())
}
fn capability(imap: &mut TcpStream) -> Result<()> {
imap.write(&b"5 capability\r\n"[..])?;
let mut buffer: [u8; 1500] = [0; 1500];
let read = read_lines(imap, &mut buffer, Some(&b"5 OK"[..]))?;
let srv_msg = std::str::from_utf8(read)?;
assert!(srv_msg.contains("IMAP4REV1"));
assert!(srv_msg.contains("IDLE"));
Ok(())
}
fn login(imap: &mut TcpStream) -> Result<()> {
let mut buffer: [u8; 1500] = [0; 1500];
imap.write(&b"10 login alice hunter2\r\n"[..])?;
let read = read_lines(imap, &mut buffer, None)?;
assert_eq!(&read[..5], &b"10 OK"[..]);
Ok(())
}
fn create_mailbox(imap: &mut TcpStream) -> Result<()> {
let mut buffer: [u8; 1500] = [0; 1500];
imap.write(&b"15 create archive\r\n"[..])?;
let read = read_lines(imap, &mut buffer, None)?;
assert_eq!(&read[..12], &b"15 OK CREATE"[..]);
Ok(())
}
#[allow(dead_code)]
fn unsubscribe_mailbox(imap: &mut TcpStream) -> Result<()> {
let mut buffer: [u8; 6000] = [0; 6000];
imap.write(&b"16 lsub \"\" *\r\n"[..])?;
let read = read_lines(imap, &mut buffer, Some(&b"16 OK LSUB"[..]))?;
let srv_msg = std::str::from_utf8(read)?;
assert!(srv_msg.contains(" INBOX\r\n"));
assert!(srv_msg.contains(" archive\r\n"));
imap.write(&b"17 unsubscribe archive\r\n"[..])?;
let read = read_lines(imap, &mut buffer, None)?;
assert_eq!(&read[..5], &b"17 OK"[..]);
imap.write(&b"18 lsub \"\" *\r\n"[..])?;
let read = read_lines(imap, &mut buffer, Some(&b"18 OK LSUB"[..]))?;
let srv_msg = std::str::from_utf8(read)?;
assert!(srv_msg.contains(" INBOX\r\n"));
assert!(!srv_msg.contains(" archive\r\n"));
Ok(())
}
fn select_inbox(imap: &mut TcpStream) -> Result<()> {
let mut buffer: [u8; 6000] = [0; 6000];
imap.write(&b"20 select inbox\r\n"[..])?;
let _read = read_lines(imap, &mut buffer, Some(&b"20 OK"[..]))?;
Ok(())
}
fn check(imap: &mut TcpStream) -> Result<()> {
let mut buffer: [u8; 1500] = [0; 1500];
imap.write(&b"21 check\r\n"[..])?;
let _read = read_lines(imap, &mut buffer, Some(&b"21 OK"[..]))?;
Ok(())
}
fn status_mailbox(imap: &mut TcpStream) -> Result<()> {
imap.write(&b"25 STATUS archive (UIDNEXT MESSAGES)\r\n"[..])?;
let mut buffer: [u8; 6000] = [0; 6000];
let _read = read_lines(imap, &mut buffer, Some(&b"25 OK"[..]))?;
Ok(())
}
fn lmtp_handshake(lmtp: &mut TcpStream) -> Result<()> {
let mut buffer: [u8; 1500] = [0; 1500];
let _read = read_lines(lmtp, &mut buffer, None)?;
assert_eq!(&buffer[..4], &b"220 "[..]);
lmtp.write(&b"LHLO example.tld\r\n"[..])?;
let _read = read_lines(lmtp, &mut buffer, Some(&b"250 "[..]))?;
Ok(())
}
fn lmtp_deliver_email(lmtp: &mut TcpStream, email: &[u8]) -> Result<()> {
let mut buffer: [u8; 1500] = [0; 1500];
lmtp.write(&b"MAIL FROM:<bob@example.tld>\r\n"[..])?;
let _read = read_lines(lmtp, &mut buffer, Some(&b"250 2.0.0"[..]))?;
lmtp.write(&b"RCPT TO:<alice@example.tld>\r\n"[..])?;
let _read = read_lines(lmtp, &mut buffer, Some(&b"250 2.1.5"[..]))?;
lmtp.write(&b"DATA\r\n"[..])?;
let _read = read_lines(lmtp, &mut buffer, Some(&b"354 "[..]))?;
lmtp.write(email)?;
lmtp.write(&b"\r\n.\r\n"[..])?;
let _read = read_lines(lmtp, &mut buffer, Some(&b"250 2.0.0"[..]))?;
Ok(())
}
fn noop_exists(imap: &mut TcpStream) -> Result<()> {
let mut buffer: [u8; 6000] = [0; 6000];
let mut max_retry = 20;
loop {
max_retry -= 1;
imap.write(&b"30 NOOP\r\n"[..])?;
let read = read_lines(imap, &mut buffer, Some(&b"30 OK NOOP"[..]))?;
let srv_msg = std::str::from_utf8(read)?;
match (max_retry, srv_msg.contains("* 1 EXISTS")) {
(_, true) => break,
(0, _) => bail!("no more retry"),
_ => (),
}
thread::sleep(SMALL_DELAY);
}
Ok(())
}
fn fetch_rfc822(imap: &mut TcpStream, ref_mail: &[u8]) -> Result<()> {
let mut buffer: [u8; 65535] = [0; 65535];
imap.write(&b"40 fetch 1 rfc822\r\n"[..])?;
let read = read_lines(imap, &mut buffer, Some(&b"40 OK FETCH"[..]))?;
let srv_msg = std::str::from_utf8(read)?;
let orig_email = std::str::from_utf8(ref_mail)?;
assert!(srv_msg.contains(orig_email));
Ok(())
}
fn copy_email(imap: &mut TcpStream) -> Result<()> {
let mut buffer: [u8; 65535] = [0; 65535];
imap.write(&b"45 copy 1 archive\r\n"[..])?;
let read = read_lines(imap, &mut buffer, None)?;
assert_eq!(&read[..5], &b"45 OK"[..]);
Ok(())
}
fn append_email(imap: &mut TcpStream, ref_mail: &[u8]) -> Result<()> {
let mut buffer: [u8; 6000] = [0; 6000];
assert_ne!(ref_mail.len(), 0);
let append_cmd = format!("47 append inbox (\\Seen) {{{}}}\r\n", ref_mail.len());
println!("append cmd: {}", append_cmd);
imap.write(append_cmd.as_bytes())?;
// wait for continuation
let read = read_lines(imap, &mut buffer, None)?;
assert_eq!(read[0], b'+');
// write our stuff
imap.write(ref_mail)?;
imap.write(&b"\r\n"[..])?;
let read = read_lines(imap, &mut buffer, None)?;
assert_eq!(&read[..5], &b"47 OK"[..]);
// noop to force a sync
imap.write(&b"48 NOOP\r\n"[..])?;
let _read = read_lines(imap, &mut buffer, Some(&b"48 OK NOOP"[..]))?;
// check it is stored successfully
imap.write(&b"49 fetch 2 rfc822.size\r\n"[..])?;
let read = read_lines(imap, &mut buffer, Some(&b"49 OK"[..]))?;
let expected = format!("* 2 FETCH (RFC822.SIZE {})", ref_mail.len());
let expbytes = expected.as_bytes();
assert_eq!(&read[..expbytes.len()], expbytes);
Ok(())
}
fn add_flags_email(imap: &mut TcpStream) -> Result<()> {
let mut buffer: [u8; 1500] = [0; 1500];
imap.write(&b"50 store 1 +FLAGS (\\Deleted \\Important)\r\n"[..])?;
let _read = read_lines(imap, &mut buffer, Some(&b"50 OK STORE"[..]))?;
Ok(())
}
#[allow(dead_code)]
/// Not yet implemented
fn search(imap: &mut TcpStream) -> Result<()> {
imap.write(&b"55 search text \"OoOoO\"\r\n"[..])?;
let mut buffer: [u8; 1500] = [0; 1500];
let _read = read_lines(imap, &mut buffer, Some(&b"55 OK SEARCH"[..]))?;
Ok(())
}
fn expunge(imap: &mut TcpStream) -> Result<()> {
imap.write(&b"60 expunge\r\n"[..])?;
let mut buffer: [u8; 1500] = [0; 1500];
let _read = read_lines(imap, &mut buffer, Some(&b"60 OK EXPUNGE"[..]))?;
Ok(())
}
fn rename_mailbox(imap: &mut TcpStream) -> Result<()> {
imap.write(&b"70 rename archive my-archives\r\n"[..])?;
let mut buffer: [u8; 1500] = [0; 1500];
let read = read_lines(imap, &mut buffer, None)?;
assert_eq!(&read[..5], &b"70 OK"[..]);
imap.write(&b"71 list \"\" *\r\n"[..])?;
let read = read_lines(imap, &mut buffer, Some(&b"71 OK LIST"[..]))?;
let srv_msg = std::str::from_utf8(read)?;
assert!(!srv_msg.contains(" archive\r\n"));
assert!(srv_msg.contains(" INBOX\r\n"));
assert!(srv_msg.contains(" my-archives\r\n"));
Ok(())
}
fn delete_mailbox(imap: &mut TcpStream) -> Result<()> {
imap.write(&b"80 delete my-archives\r\n"[..])?;
let mut buffer: [u8; 1500] = [0; 1500];
let read = read_lines(imap, &mut buffer, None)?;
assert_eq!(&read[..5], &b"80 OK"[..]);
imap.write(&b"81 list \"\" *\r\n"[..])?;
let read = read_lines(imap, &mut buffer, Some(&b"81 OK LIST"[..]))?;
let srv_msg = std::str::from_utf8(read)?;
assert!(!srv_msg.contains(" archive\r\n"));
assert!(!srv_msg.contains(" my-archives\r\n"));
assert!(srv_msg.contains(" INBOX\r\n"));
Ok(())
}
fn read_lines<'a, F: Read>(
reader: &mut F,
buffer: &'a mut [u8],
stop_marker: Option<&[u8]>,
) -> Result<&'a [u8]> {
let mut nbytes = 0;
loop {
nbytes += reader.read(&mut buffer[nbytes..])?;
//println!("partial read: {}", std::str::from_utf8(&buffer[..nbytes])?);
let pre_condition = match stop_marker {
None => true,
Some(mark) => buffer[..nbytes].windows(mark.len()).any(|w| w == mark),
};
if pre_condition && &buffer[nbytes - 2..nbytes] == &b"\r\n"[..] {
break;
}
}
println!("read: {}", std::str::from_utf8(&buffer[..nbytes])?);
Ok(&buffer[..nbytes])
}

0
tests/README.md → tests/instrumentation/README.md
View file

0
tests/docker-compose.yml → tests/instrumentation/docker-compose.yml
View file

0
tests/docker/cyrus/Dockerfile → tests/instrumentation/docker/cyrus/Dockerfile
View file

0
tests/docker/cyrus/entrypoint.sh → tests/instrumentation/docker/cyrus/entrypoint.sh
View file

0
tests/docker/maddy/Dockerfile → tests/instrumentation/docker/maddy/Dockerfile
View file

0
tests/docker/maddy/entrypoint.sh → tests/instrumentation/docker/maddy/entrypoint.sh
View file

0
tests/inject_emails.sh → tests/instrumentation/inject_emails.sh
View file

0
tests/rm-mail-parser-expected-struct.py → tests/instrumentation/rm-mail-parser-expected-struct.py
View file

0
tests/send-to-imap.py → tests/instrumentation/send-to-imap.py
View file

0
tests/unix2dos.py → tests/instrumentation/unix2dos.py
View file