Split into crates

Cargo.toml

@@ -1,21 +1,6 @@
-[package]
-name = "mailpot"
-version = "0.1.0"
-authors = ["Manos Pitsidianakis <el13635@mail.ntua.gr>"]
-edition = "2018"
-license = "LICENSE"
-readme = "README.md"
-description = "mailing list manager"
-repository = "https://github.com/meli/mailpot"
-keywords = ["mail", "mailing-lists" ]
-categories = ["email"]
-default-run = "mpot"
-
-[dependencies]
-chrono = { version = "0.4.15", features = ["serde", ] }
-error-chain = "0.12.4"
-melib = { version = "*", default-features = false, features = ["smtp", "unicode_algorithms"], git="https://github.com/meli/meli", branch = "master" }
-rusqlite = {version = "0.20.0"}
-serde = { version = "1.0.114" }
-structopt = "0.3.16"
-xdg = "2.1.0"
+[workspace]
+members = [
+	"core",
+  "cli",
+  "rest-http",
+]

README.md

@@ -1,5 +1,11 @@
 # Mailpot
-## flexible mailing list manager
+## WIP mailing list manager
+
+Crates:
+
+- `core`
+- `cli` a command line tool to manage lists
+- `rest-http` a REST http server to manage lists
 
 ```text
 % mpot help

cli/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "mailpot-cli"
+version = "0.1.0"
+authors = ["Manos Pitsidianakis <el13635@mail.ntua.gr>"]
+edition = "2018"
+license = "LICENSE"
+readme = "README.md"
+description = "mailing list manager"
+repository = "https://github.com/meli/mailpot"
+keywords = ["mail", "mailing-lists" ]
+categories = ["email"]
+default-run = "mpot"
+
+[[bin]]
+name = "mpot"
+path = "src/main.rs"
+
+[dependencies]
+mailpot = { version = "0.1.0", path = "../core" }
+structopt = "0.3.16"

src/main.rs → cli/src/main.rs

@@ -17,26 +17,16 @@
  * along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
-// `error_chain!` can recurse deeply
-#![recursion_limit = "1024"]
-
-#[macro_use]
-extern crate error_chain;
-#[macro_use]
-extern crate serde;
-use structopt::StructOpt;
-
-pub mod config;
-pub use config::*;
-pub mod models;
-pub mod post;
-pub use models::*;
-pub mod errors;
-pub use errors::*;
-pub mod db;
-pub use db::*;
+extern crate mailpot;
 
+pub use mailpot::config::*;
+pub use mailpot::db::*;
+pub use mailpot::errors::*;
+pub use mailpot::models::*;
+pub use mailpot::post::*;
+pub use mailpot::*;
 use std::path::PathBuf;
+use structopt::StructOpt;
 
 #[derive(Debug, StructOpt)]
 #[structopt(
@@ -60,6 +50,8 @@ struct Opt {
 enum Command {
     ///Prints database filesystem location
     DbLocation,
+    ///Dumps database data to STDOUT
+    DumpDatabase,
     ///Lists all registered mailing lists
     ListLists,
     ///Mailing list management
@@ -129,11 +121,21 @@ fn run_app(opt: Opt) -> Result<()> {
     if opt.debug {
         println!("DEBUG: {:?}", &opt);
     }
+    Configuration::init()?;
     use Command::*;
     match opt.cmd {
         DbLocation => {
             println!("{}", Database::db_path()?.display());
         }
+        DumpDatabase => {
+            let db = Database::open_or_create_db()?;
+            let lists = db.list_lists()?;
+            let mut stdout = std::io::stdout();
+            serde_json::to_writer_pretty(&mut stdout, &lists)?;
+            for l in &lists {
+                serde_json::to_writer_pretty(&mut stdout, &db.list_members(l.pk)?)?;
+            }
+        }
         ListLists => {
             let db = Database::open_or_create_db()?;
             let lists = db.list_lists()?;

core/Cargo.toml

@@ -0,0 +1,23 @@
+[package]
+name = "mailpot"
+version = "0.1.0"
+authors = ["Manos Pitsidianakis <el13635@mail.ntua.gr>"]
+edition = "2018"
+license = "LICENSE"
+readme = "README.md"
+description = "mailing list manager"
+repository = "https://github.com/meli/mailpot"
+keywords = ["mail", "mailing-lists" ]
+categories = ["email"]
+
+[dependencies]
+chrono = { version = "0.4.15", features = ["serde", ] }
+error-chain = "0.12.4"
+diesel = { version = "1.4.5", features = ["sqlite", ] }
+melib = { version = "*", default-features = false, features = ["smtp", "unicode_algorithms"], path="../../meli/melib", branch = "master" }
+#melib = { version = "*", default-features = false, features = ["smtp", "unicode_algorithms"], git="https://github.com/meli/meli", branch = "master" }
+rusqlite = {version = "0.20.0"}
+serde = { version = "1.0.114" }
+serde_json = "1.0.57"
+toml = "^0.5"
+xdg = "2.1.0"

core/README.md

@@ -0,0 +1,17 @@
+# mailpot-core
+
+Initialize `sqlite3` database:
+
+Either
+
+```shell
+sqlite3 mpot.db < ./src/schema.sql
+```
+
+or
+
+
+```shell
+# cargo install diesel_cli --no-default-features --features sqlite
+diesel migration run
+```

core/build.rs

@@ -0,0 +1,32 @@
+/*
+ * This file is part of mailpot
+ *
+ * Copyright 2020 - Manos Pitsidianakis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+use std::io::Write;
+use std::process::Command;
+
+fn main() {
+    println!("cargo:rerun-if-changed=src/schema.sql.m4");
+
+    let output = Command::new("m4")
+        .arg("./src/schema.sql.m4")
+        .output()
+        .unwrap();
+    let mut file = std::fs::File::create("./src/schema.sql").unwrap();
+    file.write_all(&output.stdout).unwrap();
+}

core/diesel.toml

@@ -0,0 +1,5 @@
+# For documentation on how to configure this file,
+# see diesel.rs/guides/configuring-diesel-cli
+
+[print_schema]
+file = "src/schema.rs"

core/migrations/2020-08-16-164344_add_models/down.sql

@@ -0,0 +1,8 @@
+DROP TABLE IF EXISTS mailing_lists;
+DROP TABLE IF EXISTS list_owner;
+DROP TABLE IF EXISTS post_policy;
+DROP TABLE IF EXISTS membership;
+DROP TABLE IF EXISTS post;
+DROP TABLE IF EXISTS post_event;
+DROP INDEX IF EXISTS mailing_lists_idx;
+DROP INDEX IF EXISTS membership_idx;

core/migrations/2020-08-16-164344_add_models/up.sql

@@ -0,0 +1,63 @@
+PRAGMA foreign_keys = true;
+PRAGMA encoding = 'UTF-8';
+
+CREATE TABLE IF NOT EXISTS mailing_lists (
+  pk              INTEGER PRIMARY KEY NOT NULL,
+  name            TEXT NOT NULL,
+  id              TEXT NOT NULL,
+  address         TEXT NOT NULL,
+  archive_url     TEXT,
+  description     TEXT
+);
+
+CREATE TABLE IF NOT EXISTS list_owner (
+  pk              INTEGER PRIMARY KEY NOT NULL,
+  list            INTEGER NOT NULL,
+  address         TEXT NOT NULL,
+  name            TEXT,
+  FOREIGN KEY (list) REFERENCES mailing_lists(pk) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS post_policy (
+  pk              INTEGER PRIMARY KEY NOT NULL,
+  list            INTEGER NOT NULL UNIQUE,
+  announce_only BOOLEAN CHECK (announce_only in (0, 1)) NOT NULL DEFAULT 0,
+  subscriber_only BOOLEAN CHECK (subscriber_only in (0, 1)) NOT NULL DEFAULT 0,
+  approval_needed BOOLEAN CHECK (approval_needed in (0, 1)) NOT NULL DEFAULT 0,
+  CHECK(((approval_needed) OR (((announce_only) OR (subscriber_only)) AND NOT ((announce_only) AND (subscriber_only)))) AND NOT ((approval_needed) AND (((announce_only) OR (subscriber_only)) AND NOT ((announce_only) AND (subscriber_only))))),
+  FOREIGN KEY (list) REFERENCES mailing_lists(pk) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS membership (
+  list                    INTEGER NOT NULL,
+  address                 TEXT NOT NULL,
+  name                    TEXT,
+  digest BOOLEAN CHECK (digest in (0, 1)) NOT NULL DEFAULT 0,
+  hide_address BOOLEAN CHECK (hide_address in (0, 1)) NOT NULL DEFAULT 0,
+  receive_duplicates BOOLEAN CHECK (receive_duplicates in (0, 1)) NOT NULL DEFAULT 1,
+  receive_own_posts BOOLEAN CHECK (receive_own_posts in (0, 1)) NOT NULL DEFAULT 0,
+  receive_confirmation BOOLEAN CHECK (receive_confirmation in (0, 1)) NOT NULL DEFAULT 1,
+  PRIMARY KEY (list, address),
+  FOREIGN KEY (list) REFERENCES mailing_lists(pk) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS post (
+  pk                      INTEGER PRIMARY KEY NOT NULL,
+  list                    INTEGER NOT NULL,
+  address                 TEXT NOT NULL,
+  message_id              TEXT NOT NULL,
+  message                 BLOB NOT NULL,
+  FOREIGN KEY (list, address) REFERENCES membership(list, address) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS post_event (
+  pk                      INTEGER PRIMARY KEY NOT NULL,
+  post                    INTEGER NOT NULL,
+  date                    INTEGER NOT NULL,
+  kind                    CHAR(1) CHECK (kind IN ('R', 'S', 'D', 'B', 'O')) NOT NULL,
+  content                 TEXT NOT NULL,
+  FOREIGN KEY (post) REFERENCES post(pk) ON DELETE CASCADE
+);
+
+CREATE INDEX IF NOT EXISTS mailing_lists_idx ON mailing_lists(id);
+CREATE INDEX IF NOT EXISTS membership_idx ON membership(address);

src/config.rs → core/src/config.rs

@@ -19,10 +19,13 @@
 
 use super::errors::*;
 use chrono::prelude::*;
-use std::io::Write;
+use std::cell::RefCell;
+use std::io::{Read, Write};
 use std::os::unix::fs::PermissionsExt;
 use std::path::PathBuf;
 
+thread_local!(pub static CONFIG: RefCell<Configuration> = RefCell::new(Configuration::new()));
+
 #[derive(Debug, Serialize, Deserialize, Clone)]
 #[serde(tag = "type", content = "value")]
 pub enum SendMail {
@@ -32,10 +35,33 @@ pub enum SendMail {
 
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct Configuration {
-    send_mail: SendMail,
+    pub send_mail: SendMail,
+    #[serde(default = "default_storage_fn")]
+    pub storage: String,
 }
 
 impl Configuration {
+    pub(crate) fn new() -> Self {
+        Configuration {
+            send_mail: SendMail::ShellCommand(String::new()),
+            storage: "sqlite3".into(),
+        }
+    }
+
+    pub fn init() -> Result<()> {
+        let path =
+            xdg::BaseDirectories::with_prefix("mailpot")?.place_config_file("config.toml")?;
+        let mut s = String::new();
+        let mut file = std::fs::File::open(&path)?;
+        file.read_to_string(&mut s)?;
+        let config: Configuration = toml::from_str(&s)?;
+        CONFIG.with(|f| {
+            *f.borrow_mut() = config;
+        });
+
+        Ok(())
+    }
+
     pub fn data_directory() -> Result<PathBuf> {
         Ok(xdg::BaseDirectories::with_prefix("mailpot")?.get_data_home())
     }
@@ -74,3 +100,7 @@ impl Configuration {
         Self::save_message_to_path(&msg, temp_path)
     }
 }
+
+fn default_storage_fn() -> String {
+    "sqlite3".to_string()
+}

core/src/db.rs

@@ -0,0 +1,236 @@
+/*
+ * This file is part of mailpot
+ *
+ * Copyright 2020 - Manos Pitsidianakis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+use super::*;
+use diesel::{prelude::*, Connection};
+use melib::Envelope;
+use std::path::PathBuf;
+
+const DB_NAME: &str = "mpot.db";
+
+pub struct Database {
+    connection: SqliteConnection,
+}
+
+impl Database {
+    pub fn list_lists(&self) -> Result<Vec<MailingList>> {
+        use schema::mailing_lists;
+
+        let ret = mailing_lists::table.load(&self.connection)?;
+        Ok(ret)
+    }
+
+    pub fn get_list(&self, pk: i32) -> Result<Option<MailingList>> {
+        use schema::mailing_lists;
+
+        let ret = mailing_lists::table
+            .filter(mailing_lists::pk.eq(pk))
+            .first(&self.connection)
+            .optional()?;
+        Ok(ret)
+    }
+
+    pub fn get_list_policy(&self, pk: i32) -> Result<Option<PostPolicy>> {
+        use schema::post_policy;
+
+        let ret = post_policy::table
+            .filter(post_policy::list.eq(pk))
+            .first(&self.connection)
+            .optional()?;
+        Ok(ret)
+    }
+
+    pub fn get_list_owners(&self, pk: i32) -> Result<Vec<ListOwner>> {
+        use schema::list_owner;
+
+        let ret = list_owner::table
+            .filter(list_owner::list.eq(pk))
+            .load(&self.connection)?;
+        Ok(ret)
+    }
+
+    pub fn list_members(&self, pk: i32) -> Result<Vec<ListMembership>> {
+        use schema::membership;
+
+        let ret = membership::table
+            .filter(membership::list.eq(pk))
+            .load(&self.connection)?;
+        Ok(ret)
+    }
+
+    pub fn add_member(&self, list_pk: i32, mut new_val: ListMembership) -> Result<()> {
+        use schema::membership;
+        new_val.list = list_pk;
+
+        diesel::insert_into(membership::table)
+            .values(&new_val)
+            .execute(&self.connection)?;
+        Ok(())
+    }
+
+    pub fn remove_member(&self, list_pk: i32, address: &str) -> Result<()> {
+        use schema::membership;
+        diesel::delete(
+            membership::table
+                .filter(membership::columns::list.eq(list_pk))
+                .filter(membership::columns::address.eq(address)),
+        )
+        .execute(&self.connection)?;
+        Ok(())
+    }
+
+    pub fn create_list(&self, new_val: MailingList) -> Result<()> {
+        use schema::mailing_lists;
+
+        diesel::insert_into(mailing_lists::table)
+            .values(&new_val)
+            .execute(&self.connection)?;
+        Ok(())
+    }
+
+    pub fn db_path() -> Result<PathBuf> {
+        let name = DB_NAME;
+        let data_dir = xdg::BaseDirectories::with_prefix("mailpot")?;
+        Ok(data_dir.place_data_file(name)?)
+    }
+
+    pub fn open_db(db_path: PathBuf) -> Result<Self> {
+        if !db_path.exists() {
+            return Err("Database doesn't exist".into());
+        }
+        Ok(Database {
+            connection: SqliteConnection::establish(&db_path.to_str().unwrap())?,
+        })
+    }
+
+    pub fn open_or_create_db() -> Result<Self> {
+        let db_path = Self::db_path()?;
+        let mut set_mode = false;
+        if !db_path.exists() {
+            println!("Creating {} database in {}", DB_NAME, db_path.display());
+            set_mode = true;
+        }
+        let conn = SqliteConnection::establish(&db_path.to_str().unwrap())?;
+        if set_mode {
+            use std::os::unix::fs::PermissionsExt;
+            let file = std::fs::File::open(&db_path)?;
+            let metadata = file.metadata()?;
+            let mut permissions = metadata.permissions();
+
+            permissions.set_mode(0o600); // Read/write for owner only.
+            file.set_permissions(permissions)?;
+        }
+
+
+        Ok(Database { connection: conn })
+    }
+
+    pub fn get_list_filters(&self, _list: &MailingList) -> Vec<Box<dyn crate::post::PostFilter>> {
+        use crate::post::*;
+        vec![
+            Box::new(FixCRLF),
+            Box::new(PostRightsCheck),
+            Box::new(AddListHeaders),
+            Box::new(FinalizeRecipients),
+        ]
+    }
+
+    pub fn post(&self, env: Envelope, raw: &[u8]) -> Result<()> {
+        let mut lists = self.list_lists()?;
+        let tos = env
+            .to()
+            .iter()
+            .map(|addr| addr.get_email())
+            .collect::<Vec<String>>();
+        if tos.is_empty() {
+            return Err("Envelope To: field is empty!".into());
+        }
+        if env.from().is_empty() {
+            return Err("Envelope From: field is empty!".into());
+        }
+
+        lists.retain(|list| tos.iter().any(|a| a == &list.address));
+        if lists.is_empty() {
+            return Err("Envelope To: field doesn't contain any known lists!".into());
+        }
+
+        let mut configuration = crate::config::Configuration::new();
+        crate::config::CONFIG.with(|f| {
+            configuration = f.borrow().clone();
+        });
+        use crate::post::{Post, PostAction};
+        for mut list in lists {
+            let filters = self.get_list_filters(&list);
+            let memberships = self.list_members(list.pk)?;
+            let mut post = Post {
+                policy: self.get_list_policy(list.pk)?,
+                list_owners: self.get_list_owners(list.pk)?,
+                list: &mut list,
+                from: env.from()[0].clone(),
+                memberships: &memberships,
+                bytes: raw.to_vec(),
+                to: env.to().to_vec(),
+                action: PostAction::Hold,
+            };
+            let result = filters
+                .into_iter()
+                .fold(Ok(&mut post), |p, f| p.and_then(|p| f.feed(p)));
+            eprintln!("result {:?}", result);
+
+            let Post { bytes, action, .. } = post;
+            eprintln!("send_mail {:?}", &configuration.send_mail);
+            match configuration.send_mail {
+                crate::config::SendMail::Smtp(ref smtp_conf) => {
+                    let smtp_conf = smtp_conf.clone();
+                    use melib::futures;
+                    use melib::smol;
+                    use melib::smtp::*;
+                    std::thread::spawn(|| smol::run(futures::future::pending::<()>()));
+                    let mut conn = futures::executor::block_on(SmtpConnection::new_connection(
+                        smtp_conf.clone(),
+                    ))?;
+                    match action {
+                        PostAction::Accept {
+                            recipients,
+                            digests: _digests,
+                        } => {
+                            futures::executor::block_on(conn.mail_transaction(
+                                &String::from_utf8_lossy(&bytes),
+                                Some(&recipients),
+                            ))?;
+                            /* - Save digest metadata in database */
+                        }
+                        PostAction::Reject { reason: _ } => {
+                            /* - Notify submitter */
+                            //futures::executor::block_on(conn.mail_transaction(&post.bytes, b)).unwrap();
+                        }
+                        PostAction::Defer { reason: _ } => {
+                            /* - Notify submitter
+                             * - Save in database */
+                        }
+                        PostAction::Hold => { /* - Save in database */ }
+                    }
+                }
+                _ => {}
+            }
+        }
+
+        Ok(())
+    }
+}

src/errors.rs → core/src/errors.rs

@@ -20,9 +20,12 @@
 // Create the Error, ErrorKind, ResultExt, and Result types
 error_chain! {
   foreign_links {
-       Sql(rusqlite::Error);
+       Db(diesel::ConnectionError);
+       Sql(diesel::result::Error);
        Io(::std::io::Error);
        Xdg(xdg::BaseDirectoriesError);
        Melib(melib::error::MeliError);
+       Configuration(toml::de::Error);
+       SerdeJson(serde_json::Error);
    }
 }

core/src/lib.rs

@@ -0,0 +1,40 @@
+/*
+ * This file is part of mailpot
+ *
+ * Copyright 2020 - Manos Pitsidianakis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+// `error_chain!` can recurse deeply
+#![recursion_limit = "1024"]
+//#![warn(missing_docs)]
+
+#[macro_use]
+extern crate error_chain;
+#[macro_use]
+pub extern crate serde;
+#[macro_use]
+pub extern crate diesel;
+
+pub use melib;
+pub use serde_json;
+
+pub mod config;
+pub mod models;
+pub mod post;
+pub mod schema;
+use models::*;
+pub mod errors;
+use errors::*;
+pub mod db;

src/models.rs → core/src/models.rs

@@ -18,12 +18,12 @@
  */
 
 use super::*;
-use rusqlite::Row;
-use std::convert::TryFrom;
+use schema::*;
 
-#[derive(Debug)]
+#[derive(Debug, Clone, Insertable, Queryable, Deserialize, Serialize)]
+#[table_name = "mailing_lists"]
 pub struct MailingList {
-    pub pk: i64,
+    pub pk: i32,
     pub name: String,
     pub id: String,
     pub address: String,
@@ -49,20 +49,6 @@ impl std::fmt::Display for MailingList {
     }
 }
 
-impl TryFrom<&'_ Row<'_>> for MailingList {
-    type Error = rusqlite::Error;
-    fn try_from(row: &'_ Row<'_>) -> std::result::Result<MailingList, rusqlite::Error> {
-        Ok(MailingList {
-            pk: row.get("pk")?,
-            name: row.get("name")?,
-            id: row.get("id")?,
-            address: row.get("address")?,
-            description: row.get("description")?,
-            archive_url: row.get("archive_url")?,
-        })
-    }
-}
-
 impl MailingList {
     pub fn list_id(&self) -> String {
         format!("\"{}\" <{}>", self.name, self.address)
@@ -85,9 +71,10 @@ impl MailingList {
     }
 }
 
-#[derive(Debug)]
+#[derive(Debug, Clone, Insertable, Queryable, Deserialize, Serialize)]
+#[table_name = "membership"]
 pub struct ListMembership {
-    pub list: i64,
+    pub list: i32,
     pub address: String,
     pub name: Option<String>,
     pub digest: bool,
@@ -115,22 +102,6 @@ impl std::fmt::Display for ListMembership {
     }
 }
 
-impl TryFrom<&'_ Row<'_>> for ListMembership {
-    type Error = rusqlite::Error;
-    fn try_from(row: &'_ Row<'_>) -> std::result::Result<ListMembership, rusqlite::Error> {
-        Ok(ListMembership {
-            list: row.get("list")?,
-            address: row.get("address")?,
-            name: row.get("name")?,
-            digest: row.get("digest")?,
-            hide_address: row.get("hide_address")?,
-            receive_duplicates: row.get("receive_duplicates")?,
-            receive_own_posts: row.get("receive_own_posts")?,
-            receive_confirmation: row.get("receive_confirmation")?,
-        })
-    }
-}
-
 impl ListMembership {
     pub fn into_address(&self) -> melib::email::Address {
         use melib::email::Address;
@@ -143,3 +114,57 @@ impl ListMembership {
         }
     }
 }
+
+#[derive(Debug, Clone, Insertable, Queryable, Deserialize, Serialize)]
+#[table_name = "post_policy"]
+pub struct PostPolicy {
+    pub pk: i32,
+    pub list: i32,
+    pub announce_only: bool,
+    pub subscriber_only: bool,
+    pub approval_needed: bool,
+}
+
+impl std::fmt::Display for PostPolicy {
+    fn fmt(&self, fmt: &mut std::fmt::Formatter) -> std::fmt::Result {
+        write!(fmt, "{:?}", self)
+    }
+}
+
+#[derive(Debug, Clone, Insertable, Queryable, Deserialize, Serialize)]
+#[table_name = "list_owner"]
+pub struct ListOwner {
+    pub pk: i32,
+    pub list: i32,
+    pub address: String,
+    pub name: Option<String>,
+}
+
+impl std::fmt::Display for ListOwner {
+    fn fmt(&self, fmt: &mut std::fmt::Formatter) -> std::fmt::Result {
+        if let Some(ref name) = self.name {
+            write!(
+                fmt,
+                "[#{} {}] \"{}\" <{}>",
+                self.pk, self.list, name, self.address
+            )
+        } else {
+            write!(fmt, "[#{} {}] {}", self.pk, self.list, self.address)
+        }
+    }
+}
+
+impl From<ListOwner> for ListMembership {
+    fn from(val: ListOwner) -> ListMembership {
+        ListMembership {
+            list: val.list,
+            address: val.address,
+            name: val.name,
+            digest: false,
+            hide_address: false,
+            receive_duplicates: true,
+            receive_own_posts: false,
+            receive_confirmation: true,
+        }
+    }
+}

src/post.rs → core/src/post.rs

@@ -22,6 +22,7 @@ use melib::Address;
 
 #[derive(Debug)]
 pub enum PostAction {
+    Hold,
     Accept {
         recipients: Vec<Address>,
         digests: Vec<Address>,
@@ -37,8 +38,10 @@ pub enum PostAction {
 ///Post to be considered by the list's `PostFilter` stack.
 pub struct Post<'list> {
     pub list: &'list mut MailingList,
+    pub list_owners: Vec<ListOwner>,
     pub from: Address,
     pub memberships: &'list [ListMembership],
+    pub policy: Option<PostPolicy>,
     pub bytes: Vec<u8>,
     pub to: Vec<Address>,
     pub action: PostAction,
@@ -51,6 +54,7 @@ impl<'list> core::fmt::Debug for Post<'list> {
             .field("from", &self.from)
             .field("members", &format_args!("{}", self.memberships.len()))
             .field("bytes", &format_args!("{}", self.bytes.len()))
+            .field("policy", &self.policy)
             .field("to", &self.to.as_slice())
             .field("action", &self.action)
             .finish()
@@ -60,19 +64,43 @@ impl<'list> core::fmt::Debug for Post<'list> {
 ///Filter that modifies and/or verifies a post candidate. On rejection, return a string
 ///describing the error and optionally set `post.action` to `Reject` or `Defer`
 pub trait PostFilter {
-    fn feed<'list>(
+    fn feed<'p, 'list>(
         self: Box<Self>,
-        post: &'list mut Post<'list>,
-    ) -> std::result::Result<&'list mut Post<'list>, String>;
+        post: &'p mut Post<'list>,
+    ) -> std::result::Result<&'p mut Post<'list>, String>;
 }
 
 ///Check that submitter can post to list, for now it accepts everything.
 pub struct PostRightsCheck;
 impl PostFilter for PostRightsCheck {
-    fn feed<'list>(
+    fn feed<'p, 'list>(
         self: Box<Self>,
-        post: &'list mut Post<'list>,
-    ) -> std::result::Result<&'list mut Post<'list>, String> {
+        post: &'p mut Post<'list>,
+    ) -> std::result::Result<&'p mut Post<'list>, String> {
+        if let Some(ref policy) = post.policy {
+            if policy.announce_only {
+                let owner_addresses = post
+                    .list_owners
+                    .iter()
+                    .map(|lo| {
+                        let lm: ListMembership = lo.clone().into();
+                        lm.into_address()
+                    })
+                    .collect::<Vec<Address>>();
+                if !owner_addresses.iter().any(|addr| *addr == post.from) {
+                    return Err("You are not allowed to post on this list.".to_string());
+                }
+            } else if policy.subscriber_only {
+                let email_from = post.from.get_email();
+                if !post.memberships.iter().any(|lm| lm.address == email_from) {
+                    return Err("You are not subscribed to this list.".to_string());
+                }
+            } else if policy.approval_needed {
+                post.action = PostAction::Defer {
+                    reason: "Approval from the list's moderators is required.".to_string(),
+                };
+            }
+        }
         Ok(post)
     }
 }
@@ -80,10 +108,10 @@ impl PostFilter for PostRightsCheck {
 ///Ensure message contains only `\r\n` line terminators, required by SMTP.
 pub struct FixCRLF;
 impl PostFilter for FixCRLF {
-    fn feed<'list>(
+    fn feed<'p, 'list>(
         self: Box<Self>,
-        post: &'list mut Post<'list>,
-    ) -> std::result::Result<&'list mut Post<'list>, String> {
+        post: &'p mut Post<'list>,
+    ) -> std::result::Result<&'p mut Post<'list>, String> {
         use std::io::prelude::*;
         let mut new_vec = Vec::with_capacity(post.bytes.len());
         for line in post.bytes.lines() {
@@ -98,10 +126,10 @@ impl PostFilter for FixCRLF {
 ///Add `List-*` headers
 pub struct AddListHeaders;
 impl PostFilter for AddListHeaders {
-    fn feed<'list>(
+    fn feed<'p, 'list>(
         self: Box<Self>,
-        post: &'list mut Post<'list>,
-    ) -> std::result::Result<&'list mut Post<'list>, String> {
+        post: &'p mut Post<'list>,
+    ) -> std::result::Result<&'p mut Post<'list>, String> {
         let (mut headers, body) = melib::email::parser::mail(&post.bytes).unwrap();
         let list_id = post.list.list_id();
         headers.push((&b"List-ID"[..], list_id.as_bytes()));
@@ -142,10 +170,10 @@ impl PostFilter for AddListHeaders {
 ///Adds `Archived-At` field, if configured.
 pub struct ArchivedAtLink;
 impl PostFilter for ArchivedAtLink {
-    fn feed<'list>(
+    fn feed<'p, 'list>(
         self: Box<Self>,
-        post: &'list mut Post<'list>,
-    ) -> std::result::Result<&'list mut Post<'list>, String> {
+        post: &'p mut Post<'list>,
+    ) -> std::result::Result<&'p mut Post<'list>, String> {
         Ok(post)
     }
 }
@@ -154,10 +182,10 @@ impl PostFilter for ArchivedAtLink {
 ///will receive the post in `post.action` field.
 pub struct FinalizeRecipients;
 impl PostFilter for FinalizeRecipients {
-    fn feed<'list>(
+    fn feed<'p, 'list>(
         self: Box<Self>,
-        post: &'list mut Post<'list>,
-    ) -> std::result::Result<&'list mut Post<'list>, String> {
+        post: &'p mut Post<'list>,
+    ) -> std::result::Result<&'p mut Post<'list>, String> {
         let mut recipients = vec![];
         let mut digests = vec![];
         let email_from = post.from.get_email();

core/src/schema.rs

@@ -0,0 +1,76 @@
+table! {
+    list_owner (pk) {
+        pk -> Integer,
+        list -> Integer,
+        address -> Text,
+        name -> Nullable<Text>,
+    }
+}
+
+table! {
+    mailing_lists (pk) {
+        pk -> Integer,
+        name -> Text,
+        id -> Text,
+        address -> Text,
+        archive_url -> Nullable<Text>,
+        description -> Nullable<Text>,
+    }
+}
+
+table! {
+    membership (list, address) {
+        list -> Integer,
+        address -> Text,
+        name -> Nullable<Text>,
+        digest -> Bool,
+        hide_address -> Bool,
+        receive_duplicates -> Bool,
+        receive_own_posts -> Bool,
+        receive_confirmation -> Bool,
+    }
+}
+
+table! {
+    post (pk) {
+        pk -> Integer,
+        list -> Integer,
+        address -> Text,
+        message_id -> Text,
+        message -> Binary,
+    }
+}
+
+table! {
+    post_event (pk) {
+        pk -> Integer,
+        post -> Integer,
+        date -> Integer,
+        kind -> Text,
+        content -> Text,
+    }
+}
+
+table! {
+    post_policy (pk) {
+        pk -> Integer,
+        list -> Integer,
+        announce_only -> Bool,
+        subscriber_only -> Bool,
+        approval_needed -> Bool,
+    }
+}
+
+joinable!(list_owner -> mailing_lists (list));
+joinable!(membership -> mailing_lists (list));
+joinable!(post_event -> post (post));
+joinable!(post_policy -> mailing_lists (list));
+
+allow_tables_to_appear_in_same_query!(
+    list_owner,
+    mailing_lists,
+    membership,
+    post,
+    post_event,
+    post_policy,
+);

core/src/schema.sql

@@ -0,0 +1,63 @@
+PRAGMA foreign_keys = true;
+PRAGMA encoding = 'UTF-8';
+
+CREATE TABLE IF NOT EXISTS mailing_lists (
+  pk              INTEGER PRIMARY KEY NOT NULL,
+  name            TEXT NOT NULL,
+  id              TEXT NOT NULL,
+  address         TEXT NOT NULL,
+  archive_url     TEXT,
+  description     TEXT
+);
+
+CREATE TABLE IF NOT EXISTS list_owner (
+  pk              INTEGER PRIMARY KEY NOT NULL,
+  list            INTEGER NOT NULL,
+  address         TEXT NOT NULL,
+  name            TEXT,
+  FOREIGN KEY (list) REFERENCES mailing_lists(pk) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS post_policy (
+  pk              INTEGER PRIMARY KEY NOT NULL,
+  list            INTEGER NOT NULL UNIQUE,
+  announce_only BOOLEAN CHECK (announce_only in (0, 1)) NOT NULL DEFAULT 0,
+  subscriber_only BOOLEAN CHECK (subscriber_only in (0, 1)) NOT NULL DEFAULT 0,
+  approval_needed BOOLEAN CHECK (approval_needed in (0, 1)) NOT NULL DEFAULT 0,
+  CHECK(((approval_needed) OR (((announce_only) OR (subscriber_only)) AND NOT ((announce_only) AND (subscriber_only)))) AND NOT ((approval_needed) AND (((announce_only) OR (subscriber_only)) AND NOT ((announce_only) AND (subscriber_only))))),
+  FOREIGN KEY (list) REFERENCES mailing_lists(pk) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS membership (
+  list                    INTEGER NOT NULL,
+  address                 TEXT NOT NULL,
+  name                    TEXT,
+  digest BOOLEAN CHECK (digest in (0, 1)) NOT NULL DEFAULT 0,
+  hide_address BOOLEAN CHECK (hide_address in (0, 1)) NOT NULL DEFAULT 0,
+  receive_duplicates BOOLEAN CHECK (receive_duplicates in (0, 1)) NOT NULL DEFAULT 1,
+  receive_own_posts BOOLEAN CHECK (receive_own_posts in (0, 1)) NOT NULL DEFAULT 0,
+  receive_confirmation BOOLEAN CHECK (receive_confirmation in (0, 1)) NOT NULL DEFAULT 1,
+  PRIMARY KEY (list, address),
+  FOREIGN KEY (list) REFERENCES mailing_lists(pk) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS post (
+  pk                      INTEGER PRIMARY KEY NOT NULL,
+  list                    INTEGER NOT NULL,
+  address                 TEXT NOT NULL,
+  message_id              TEXT NOT NULL,
+  message                 BLOB NOT NULL,
+  FOREIGN KEY (list, address) REFERENCES membership(list, address) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS post_event (
+  pk                      INTEGER PRIMARY KEY NOT NULL,
+  post                    INTEGER NOT NULL,
+  date                    INTEGER NOT NULL,
+  kind                    CHAR(1) CHECK (kind IN ('R', 'S', 'D', 'B', 'O')) NOT NULL,
+  content                 TEXT NOT NULL,
+  FOREIGN KEY (post) REFERENCES post(pk) ON DELETE CASCADE
+);
+
+CREATE INDEX IF NOT EXISTS mailing_lists_idx ON mailing_lists(id);
+CREATE INDEX IF NOT EXISTS membership_idx ON membership(address);

core/src/schema.sql.m4

@@ -0,0 +1,67 @@
+define(xor, `(($1) OR ($2)) AND NOT (($1) AND ($2))')dnl
+define(BOOLEAN_TYPE, `$1 BOOLEAN CHECK ($1 in (0, 1)) NOT NULL')dnl
+define(BOOLEAN_FALSE, `0')dnl
+define(BOOLEAN_TRUE, `1')dnl
+PRAGMA foreign_keys = true;
+PRAGMA encoding = 'UTF-8';
+
+CREATE TABLE IF NOT EXISTS mailing_lists (
+  pk              INTEGER PRIMARY KEY NOT NULL,
+  name            TEXT NOT NULL,
+  id              TEXT NOT NULL,
+  address         TEXT NOT NULL,
+  archive_url     TEXT,
+  description     TEXT
+);
+
+CREATE TABLE IF NOT EXISTS list_owner (
+  pk              INTEGER PRIMARY KEY NOT NULL,
+  list            INTEGER NOT NULL,
+  address         TEXT NOT NULL,
+  name            TEXT,
+  FOREIGN KEY (list) REFERENCES mailing_lists(pk) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS post_policy (
+  pk              INTEGER PRIMARY KEY NOT NULL,
+  list            INTEGER NOT NULL UNIQUE,
+  BOOLEAN_TYPE(announce_only) DEFAULT BOOLEAN_FALSE(),
+  BOOLEAN_TYPE(subscriber_only) DEFAULT BOOLEAN_FALSE(),
+  BOOLEAN_TYPE(approval_needed) DEFAULT BOOLEAN_FALSE(),
+  CHECK(xor(approval_needed, xor(announce_only, subscriber_only))),
+  FOREIGN KEY (list) REFERENCES mailing_lists(pk) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS membership (
+  list                    INTEGER NOT NULL,
+  address                 TEXT NOT NULL,
+  name                    TEXT,
+  BOOLEAN_TYPE(digest) DEFAULT BOOLEAN_FALSE(),
+  BOOLEAN_TYPE(hide_address) DEFAULT BOOLEAN_FALSE(),
+  BOOLEAN_TYPE(receive_duplicates) DEFAULT BOOLEAN_TRUE(),
+  BOOLEAN_TYPE(receive_own_posts) DEFAULT BOOLEAN_FALSE(),
+  BOOLEAN_TYPE(receive_confirmation) DEFAULT BOOLEAN_TRUE(),
+  PRIMARY KEY (list, address),
+  FOREIGN KEY (list) REFERENCES mailing_lists(pk) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS post (
+  pk                      INTEGER PRIMARY KEY NOT NULL,
+  list                    INTEGER NOT NULL,
+  address                 TEXT NOT NULL,
+  message_id              TEXT NOT NULL,
+  message                 BLOB NOT NULL,
+  FOREIGN KEY (list, address) REFERENCES membership(list, address) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS post_event (
+  pk                      INTEGER PRIMARY KEY NOT NULL,
+  post                    INTEGER NOT NULL,
+  date                    INTEGER NOT NULL,
+  kind                    CHAR(1) CHECK (kind IN ('R', 'S', 'D', 'B', 'O')) NOT NULL,
+  content                 TEXT NOT NULL,
+  FOREIGN KEY (post) REFERENCES post(pk) ON DELETE CASCADE
+);
+
+CREATE INDEX IF NOT EXISTS mailing_lists_idx ON mailing_lists(id);
+CREATE INDEX IF NOT EXISTS membership_idx ON membership(address);

rest-http/Cargo.toml

@@ -0,0 +1,25 @@
+[package]
+name = "mailpot-http"
+version = "0.1.0"
+authors = ["Manos Pitsidianakis <el13635@mail.ntua.gr>"]
+edition = "2018"
+license = "LICENSE"
+readme = "README.md"
+description = "mailing list manager"
+repository = "https://github.com/meli/mailpot"
+keywords = ["mail", "mailing-lists" ]
+categories = ["email"]
+default-run = "mpot-http"
+
+[[bin]]
+name = "mpot-http"
+path = "src/main.rs"
+
+[dependencies]
+mailpot = { version = "0.1.0", path = "../core" }
+rocket = "0.4.5"
+
+[dependencies.rocket_contrib]
+version = "0.4.5"
+default-features = false
+features = ["json"]

rest-http/README.md

@@ -0,0 +1,7 @@
+# mailpot REST http server
+
+Current `rocket` requires Nightly.
+
+```shell
+cargo +nightly run --bin mpot-http
+```

rest-http/src/main.rs

@@ -0,0 +1,93 @@
+/*
+ * This file is part of mailpot
+ *
+ * Copyright 2020 - Manos Pitsidianakis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#![feature(proc_macro_hygiene, decl_macro)]
+extern crate mailpot;
+
+pub use mailpot::config::*;
+pub use mailpot::db::*;
+pub use mailpot::errors::*;
+pub use mailpot::models::*;
+pub use mailpot::post::*;
+pub use mailpot::*;
+use std::path::PathBuf;
+
+use rocket::response::content;
+use rocket_contrib::json::Json;
+
+#[macro_use]
+extern crate rocket;
+
+#[get("/")]
+fn index() -> &'static str {
+    "Hello, world!"
+}
+
+#[get("/lists")]
+fn lists() -> Json<Vec<MailingList>> {
+    let db = Database::open_or_create_db().unwrap();
+    let lists = db.list_lists().unwrap();
+    Json(lists)
+}
+
+#[get("/lists/<num>")]
+fn lists_num(num: u64) -> Json<Option<MailingList>> {
+    let db = Database::open_or_create_db().unwrap();
+    let list = db.get_list(num as i64).unwrap();
+    Json(list)
+}
+
+#[get("/lists/<num>/members")]
+fn lists_members(num: u64) -> Option<Json<Vec<ListMembership>>> {
+    let db = Database::open_or_create_db().unwrap();
+    db.list_members(num as i64).ok().map(|l| Json(l))
+}
+
+#[get("/lists/<num>/owners")]
+fn lists_owners(num: u64) -> Option<Json<Vec<ListOwner>>> {
+    let db = Database::open_or_create_db().unwrap();
+    db.get_list_owners(num as i64).ok().map(|l| Json(l))
+}
+
+#[post("/lists/<num>/owners/add", data = "<new_owner>")]
+fn lists_owner_add(num: u64, new_owner: ListOwner) -> Result<()> {
+    todo!()
+}
+
+#[get("/lists/<num>/policy")]
+fn lists_policy(num: u64) -> Option<Json<Option<PostPolicy>>> {
+    let db = Database::open_or_create_db().unwrap();
+    db.get_list_policy(num as i64).ok().map(|l| Json(l))
+}
+
+fn main() {
+    rocket::ignite()
+        .mount(
+            "/",
+            routes![
+                index,
+                lists_members,
+                lists_num,
+                lists_owners,
+                lists_policy,
+                lists
+            ],
+        )
+        .launch();
+}

src/db.rs

@@ -1,220 +0,0 @@
-/*
- * This file is part of mailpot
- *
- * Copyright 2020 - Manos Pitsidianakis
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <https://www.gnu.org/licenses/>.
- */
-
-use super::*;
-use melib::Envelope;
-pub use rusqlite::{self, params, Connection};
-use std::convert::TryFrom;
-use std::path::PathBuf;
-
-const DB_NAME: &str = "mpot.db";
-const INIT_SCRIPT: &str = "PRAGMA foreign_keys = true;
-    PRAGMA encoding = 'UTF-8';
-
-    CREATE TABLE IF NOT EXISTS mailing_lists (
-                    pk              INTEGER PRIMARY KEY,
-                    name            TEXT NOT NULL,
-                    id              TEXT NOT NULL,
-                    address         TEXT NOT NULL,
-                    archive_url     TEXT,
-                    description     TEXT
-                   );
-    CREATE TABLE IF NOT EXISTS membership (
-                list              INTEGER NOT NULL,
-                address          TEXT NOT NULL,
-                name          TEXT,
-                digest          BOOLEAN NOT NULL DEFAULT 0,
-                hide_address    BOOLEAN NOT NULL DEFAULT 0,
-                receive_duplicates    BOOLEAN NOT NULL DEFAULT 1,
-                receive_own_posts    BOOLEAN NOT NULL DEFAULT 0,
-                receive_confirmation    BOOLEAN NOT NULL DEFAULT 1,
-                PRIMARY KEY (list, address),
-                FOREIGN KEY (list) REFERENCES mailing_lists ON DELETE CASCADE
-               );
-    CREATE INDEX IF NOT EXISTS mailing_lists_idx ON mailing_lists(id);
-    CREATE INDEX IF NOT EXISTS membership_idx ON membership(address);";
-
-pub struct Database {
-    connection: Connection,
-}
-
-impl Database {
-    pub fn list_lists(&self) -> Result<Vec<MailingList>> {
-        let mut stmt = self
-            .connection
-            .prepare("SELECT * FROM mailing_lists;")
-            .unwrap();
-        let res = stmt
-            .query_map(params![], |row| MailingList::try_from(row))?
-            .map(|r| r.map_err(|err| err.into()))
-            .collect();
-        res
-    }
-
-    pub fn list_members(&self, pk: i64) -> Result<Vec<ListMembership>> {
-        let mut stmt = self
-            .connection
-            .prepare("SELECT * FROM membership WHERE list = ?;")
-            .unwrap();
-        let res = stmt
-            .query_map(params![pk], |row| ListMembership::try_from(row))?
-            .map(|r| r.map_err(|err| err.into()))
-            .collect();
-        res
-    }
-
-    pub fn add_member(&self, list_pk: i64, new_val: ListMembership) -> Result<()> {
-        self.connection.execute(
-            "INSERT INTO membership (list, address, name, digest, hide_address) VALUES (?1, ?2, ?3, ?4, ?5);",
-            params![
-                &list_pk,
-                &new_val.address,
-                &new_val.name,
-                &new_val.digest,
-                &new_val.hide_address
-            ],
-        )?;
-        Ok(())
-    }
-
-    pub fn remove_member(&self, list_pk: i64, address: &str) -> Result<()> {
-        if self.connection.execute(
-            "DELETE FROM membership WHERE list = ?1 AND address = ?2;",
-            params![&list_pk, &address,],
-        )? == 0
-        {
-            Err(format!("Address {} is not a member of this list.", address))?;
-        }
-        Ok(())
-    }
-
-    pub fn create_list(&self, new_val: MailingList) -> Result<()> {
-        self.connection.execute(
-            "INSERT INTO mailing_lists (name, id, address, description) VALUES (?1, ?2, ?3, ?4)",
-            params![
-                &new_val.name,
-                &new_val.id,
-                &new_val.address,
-                &new_val.description
-            ],
-        )?;
-        Ok(())
-    }
-
-    pub fn db_path() -> Result<PathBuf> {
-        let name = DB_NAME;
-        let data_dir = xdg::BaseDirectories::with_prefix("mailpot")?;
-        Ok(data_dir.place_data_file(name)?)
-    }
-
-    pub fn open_db(db_path: PathBuf) -> Result<Self> {
-        if !db_path.exists() {
-            return Err("Database doesn't exist".into());
-        }
-        Ok(Database {
-            connection: Connection::open(&db_path)?,
-        })
-    }
-
-    pub fn open_or_create_db() -> Result<Self> {
-        let db_path = Self::db_path()?;
-        let mut set_mode = false;
-        if !db_path.exists() {
-            println!("Creating {} database in {}", DB_NAME, db_path.display());
-            set_mode = true;
-        }
-        let conn = Connection::open(&db_path)?;
-        if set_mode {
-            use std::os::unix::fs::PermissionsExt;
-            let file = std::fs::File::open(&db_path)?;
-            let metadata = file.metadata()?;
-            let mut permissions = metadata.permissions();
-
-            permissions.set_mode(0o600); // Read/write for owner only.
-            file.set_permissions(permissions)?;
-        }
-
-        conn.execute_batch(INIT_SCRIPT)?;
-
-        Ok(Database { connection: conn })
-    }
-
-    pub fn get_list_filters(&self, _list: &MailingList) -> Vec<Box<dyn crate::post::PostFilter>> {
-        use crate::post::*;
-        vec![
-            Box::new(FixCRLF),
-            Box::new(PostRightsCheck),
-            Box::new(AddListHeaders),
-            Box::new(FinalizeRecipients),
-        ]
-    }
-
-    pub fn post(&self, env: Envelope, raw: &[u8]) -> Result<()> {
-        let mut lists = self.list_lists()?;
-        let tos = env
-            .to()
-            .iter()
-            .map(|addr| addr.get_email())
-            .collect::<Vec<String>>();
-        if tos.is_empty() {
-            return Err("Envelope To: field is empty!".into());
-        }
-        if env.from().is_empty() {
-            return Err("Envelope From: field is empty!".into());
-        }
-
-        lists.retain(|list| tos.iter().any(|a| a == &list.address));
-        if lists.is_empty() {
-            return Err("Envelope To: field doesn't contain any known lists!".into());
-        }
-
-        use crate::post::{Post, PostAction};