Split into crates 2

2 years ago · ae36860ad1
15 changed files with 502 additions and 52 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@ -131,12 +131,12 @@ checksum = "065374052e7df7ee4047b1160cca5e1467a12351a40b3da123c870ba0b8eda2a"

 [[package]]
 name = "atty"
-version = "0.2.14"
+version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
+checksum = "9a7d5b8723950951411ee34d271d99dddcc2035a16ab25310ea2c8cfd4369652"
 dependencies = [
- "hermit-abi",
 "libc",
+ "termion",
 "winapi 0.3.9",
 ]

@ -378,7 +378,7 @@ dependencies = [
 "autocfg",
 "cfg-if",
 "crossbeam-utils",
- "lazy_static",
+ "lazy_static 1.4.0",
 "maybe-uninit",
 "memoffset",
 "scopeguard",
@ -403,7 +403,7 @@ checksum = "c3c7c73a2d1e9fc0886a08b93e98eb643461230d5f1925e4036204d5f2e261a8"
 dependencies = [
 "autocfg",
 "cfg-if",
- "lazy_static",
+ "lazy_static 1.4.0",
 ]

 [[package]]
@ -893,6 +893,7 @@ checksum = "86b45e59b16c76b11bf9738fd5d38879d3bd28ad292d7b313608becb17ae2df9"
 dependencies = [
 "autocfg",
 "hashbrown",
+ "serde",
 ]

 [[package]]
@ -946,6 +947,12 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a91d884b6667cd606bb5a69aa0c99ba811a115fc68915e7056ec08a46e93199a"

+[[package]]
+name = "lazy_static"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76f033c7ad61445c5b347c7382dd1237847eb1bce590fe50365dcb33d546be73"
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@ -1036,6 +1043,7 @@ dependencies = [
 "chrono",
 "diesel",
 "error-chain",
+ "log 0.4.11",
 "melib",
 "rusqlite",
 "serde",
@ -1049,6 +1057,7 @@ name = "mailpot-cli"
 version = "0.1.0"
 dependencies = [
 "mailpot",
+ "stderrlog",
 "structopt",
 ]

@ -1085,11 +1094,13 @@ dependencies = [
 "data-encoding",
 "encoding",
 "futures",
+ "indexmap",
 "libc",
 "libloading",
 "native-tls",
 "nix",
 "nom",
+ "once_cell",
 "serde",
 "serde_derive",
 "smallvec",
@ -1181,7 +1192,7 @@ version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b0d88c06fe90d5ee94048ba40409ef1d9315d86f6f38c2efdaad4fb50c58b2d"
 dependencies = [
- "lazy_static",
+ "lazy_static 1.4.0",
 "libc",
 "log 0.4.11",
 "openssl",
@ -1275,6 +1286,12 @@ dependencies = [
 "libc",
 ]

+[[package]]
+name = "numtoa"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8f8bdf33df195859076e54ab11ee78a1b208382d3a26ec40d142ffc1ecc49ef"
+
 [[package]]
 name = "object"
 version = "0.20.0"
@ -1302,7 +1319,7 @@ dependencies = [
 "bitflags",
 "cfg-if",
 "foreign-types",
- "lazy_static",
+ "lazy_static 1.4.0",
 "libc",
 "openssl-sys",
 ]
@ -1545,6 +1562,15 @@ version = "0.1.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"

+[[package]]
+name = "redox_termios"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
+dependencies = [
+ "redox_syscall",
+]
+
 [[package]]
 name = "remove_dir_all"
 version = "0.5.3"
@ -1668,7 +1694,7 @@ version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f05ba609c234e60bee0d547fe94a4c7e9da733d1c962cf6e59efa4cd9c8bc75"
 dependencies = [
- "lazy_static",
+ "lazy_static 1.4.0",
 "winapi 0.3.9",
 ]

@ -1738,6 +1764,12 @@ dependencies = [
 "serde",
 ]

+[[package]]
+name = "sha1"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
+
 [[package]]
 name = "sha2"
 version = "0.8.2"
@ -1810,6 +1842,19 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"

+[[package]]
+name = "stderrlog"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32e5ee9b90a5452c570a0b0ac1c99ae9498db7e56e33d74366de7f2a7add7f25"
+dependencies = [
+ "atty",
+ "chrono",
+ "log 0.4.11",
+ "termcolor",
+ "thread_local",
+]
+
 [[package]]
 name = "strsim"
 version = "0.8.0"
@ -1823,7 +1868,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "de5472fb24d7e80ae84a7801b7978f95a19ec32cb1876faea59ab711eb901976"
 dependencies = [
 "clap",
- "lazy_static",
+ "lazy_static 1.4.0",
 "structopt-derive",
 ]

@ -1888,6 +1933,27 @@ dependencies = [
 "winapi 0.3.9",
 ]

+[[package]]
+name = "termcolor"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bb6bfa289a4d7c5766392812c0a1f4c1ba45afa1ad47803c11e1f407d846d75f"
+dependencies = [
+ "winapi-util",
+]
+
+[[package]]
+name = "termion"
+version = "1.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c22cec9d8978d906be5ac94bceb5a010d885c626c4c8855721a4dbd20e3ac905"
+dependencies = [
+ "libc",
+ "numtoa",
+ "redox_syscall",
+ "redox_termios",
+]
+
 [[package]]
 name = "textwrap"
 version = "0.11.0"
@ -1897,6 +1963,16 @@ dependencies = [
 "unicode-width",
 ]

+[[package]]
+name = "thread_local"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1697c4b57aeeb7a536b647165a2825faddffb1d3bad386d507709bd51a90bb14"
+dependencies = [
+ "lazy_static 0.2.11",
+ "unreachable",
+]
+
 [[package]]
 name = "time"
 version = "0.1.43"
@ -2010,6 +2086,15 @@ dependencies = [
 "subtle 2.2.3",
 ]

+[[package]]
+name = "unreachable"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
+dependencies = [
+ "void",
+]
+
 [[package]]
 name = "url"
 version = "1.7.2"
@ -2029,6 +2114,7 @@ checksum = "9fde2f6a4bea1d6e007c4ad38c6839fa71cbb63b6dbf5b595aa38dc9b1093c11"
 dependencies = [
 "rand",
 "serde",
+ "sha1",
 ]

 [[package]]
--- a/README.md
+++ b/README.md
@ -1,5 +1,4 @@
-# Mailpot
-## WIP mailing list manager
+# Mailpot - WIP mailing list manager

 Crates:

@ -7,6 +6,19 @@ Crates:
 - `cli` a command line tool to manage lists
 - `rest-http` a REST http server to manage lists

+## Project goals
+
+- easy setup
+- extensible through Rust API as a library
+- extensible through HTTP REST API as an HTTP server, with webhooks
+- basic management through CLI
+- replaceable lightweight web archiver
+- custom storage?
+- useful for both newsletters, discussions
+
+
+## Examples
+
 ```text
 % mpot help
 mailpot 0.1.0
@ -31,3 +43,124 @@ SUBCOMMANDS:
    list-lists     Lists all registered mailing lists
    post           Post message from STDIN to list
 ```
+
+### Receiving mail
+
+```shell
+$ cat list-request.eml | cargo run --bin mpot -- -vvvvvv post --dry-run
+```
+
+<details><summary>output</summary>
+
+```shell
+TRACE - Received envelope to post: Envelope {
+    Subject: "unsubscribe",
+    Date: "Tue, 04 Aug 2020 14:10:13 +0300",
+    From: [
+        Address::Mailbox {
+            display_name: "Mxxxx Pxxxxxxxxxxxx",
+            address_spec: "exxxxx@localhost",
+        },
+    ],
+    To: [
+        Address::Mailbox {
+            display_name: "",
+            address_spec: "test-announce+request@localhost",
+        },
+    ],
+    Message-ID: "<ejduu.fddf8sgen4j7@localhost>",
+    In-Reply-To: None,
+    References: None,
+    Hash: 12581897380059220314,
+}
+TRACE - unsubscribe action for addresses [Address::Mailbox { display_name: "Mxxxx Pxxxxxxxxxxxx", address_spec: "exxxxx@localhost" }] in list [#2 test-announce] test announcements <test-announce@localhost>
+TRACE - Is post related to list [#1 test] Test list <test@localhost>? false
+```
+</details>
+
+```shell
+$ cat list-post.eml | cargo run --bin mpot -- -vvvvvv post --dry-run
+```
+
+<details><summary>output</summary>
+
+```shell
+TRACE - Received envelope to post: Envelope {
+    Subject: "[test-announce] new test releases",
+    Date: "Tue, 04 Aug 2020 14:10:13 +0300",
+    From: [
+        Address::Mailbox {
+            display_name: "Mxxxx Pxxxxxxxxxxxx",
+            address_spec: "exxxxx@localhost",
+        },
+    ],
+    To: [
+        Address::Mailbox {
+            display_name: "",
+            address_spec: "test-announce@localhost",
+        },
+    ],
+    Message-ID: "<ejduu.sddf8sgen4j7@localhost>",
+    In-Reply-To: None,
+    References: None,
+    Hash: 10220641455578979007,
+}
+TRACE - Is post related to list [#1 test] Test list <test@localhost>? false
+TRACE - Is post related to list [#2 test-announce] test announcements <test-announce@localhost>? true
+TRACE - Examining list "test announcements" <test-announce@localhost>
+TRACE - List members [
+    ListMembership {
+        list: 2,
+        address: "exxxxx@localhost",
+        name: None,
+        digest: false,
+        hide_address: false,
+        receive_duplicates: false,
+        receive_own_posts: true,
+        receive_confirmation: true,
+        enabled: true,
+    },
+]
+TRACE - Running FixCRLF filter
+TRACE - Running PostRightsCheck filter
+TRACE - Running AddListHeaders filter
+TRACE - Running FinalizeRecipients filter
+TRACE - examining member ListMembership { list: 2, address: "exxxxx@localhost", name: None, digest: false, hide_address: false, receive_duplicates: false, receive_own_posts: true, receive_confirmation: true, enabled: true }
+TRACE - member is submitter
+TRACE - Member gets copy
+TRACE - result Ok(
+    Post {
+        list: MailingList {
+            pk: 2,
+            name: "test announcements",
+            id: "test-announce",
+            address: "test-announce@localhost",
+            description: None,
+            archive_url: None,
+        },
+        from: Address::Mailbox {
+            display_name: "Mxxxx Pxxxxxxxxxxxx",
+            address_spec: "exxxxx@localhost",
+        },
+        members: 1,
+        bytes: 851,
+        policy: None,
+        to: [
+            Address::Mailbox {
+                display_name: "",
+                address_spec: "test-announce@localhost",
+            },
+        ],
+        action: Accept {
+            recipients: [
+                Address::Mailbox {
+                    display_name: "",
+                    address_spec: "exxxxx@localhost",
+                },
+            ],
+            digests: [],
+        },
+    },
+)
+```
+</details>
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@ -18,3 +18,4 @@ path = "src/main.rs"
 [dependencies]
 mailpot = { version = "0.1.0", path = "../core" }
 structopt = "0.3.16"
+stderrlog = "0.4"
--- a/cli/README.md
+++ b/cli/README.md
@ -0,0 +1,5 @@
+# mailpot-cli
+
+```shell
+cargo run --bin mpot -- help
+```
--- a/cli/src/main.rs
+++ b/cli/src/main.rs
@ -18,6 +18,7 @@
 */

 extern crate mailpot;
+extern crate stderrlog;

 pub use mailpot::config::*;
 pub use mailpot::db::*;
@ -44,6 +45,15 @@ struct Opt {
    config: Option<PathBuf>,
    #[structopt(flatten)]
    cmd: Command,
+    /// Silence all output
+    #[structopt(short = "q", long = "quiet")]
+    quiet: bool,
+    /// Verbose mode (-v, -vv, -vvv, etc)
+    #[structopt(short = "v", long = "verbose", parse(from_occurrences))]
+    verbose: usize,
+    /// Timestamp (sec, ms, ns, none)
+    #[structopt(short = "t", long = "timestamp")]
+    ts: Option<stderrlog::Timestamp>,
 }

 #[derive(Debug, StructOpt)]
@ -108,6 +118,8 @@ enum ListCommand {
        receive_duplicates: Option<bool>,
        #[structopt(long)]
        receive_own_posts: Option<bool>,
+        #[structopt(long)]
+        enabled: Option<bool>,
    },
    RemoveMember {
        #[structopt(long)]
@ -144,6 +156,21 @@ fn run_app(opt: Opt) -> Result<()> {
            } else {
                for l in lists {
                    println!("- {} {:?}", l.id, l);
+                    let list_owners = db.get_list_owners(l.pk)?;
+                    if list_owners.is_empty() {
+                        println!("\tList owners: None");
+                    } else {
+                        println!("\tList owners:");
+                        for o in db.get_list_owners(l.pk)? {
+                            println!("\t- {}", o);
+                        }
+                    }
+                    if let Some(s) = db.get_list_policy(l.pk)? {
+                        println!("\tList policy: {}", s);
+                    } else {
+                        println!("\tList policy: None");
+                    }
+                    println!("");
                }
            }
        }
@ -176,6 +203,7 @@ fn run_app(opt: Opt) -> Result<()> {
                    receive_confirmation,
                    receive_duplicates,
                    receive_own_posts,
+                    enabled,
                } => {
                    db.add_member(
                        list.pk,
@ -188,6 +216,7 @@ fn run_app(opt: Opt) -> Result<()> {
                            receive_confirmation: receive_confirmation.unwrap_or(true),
                            receive_duplicates: receive_duplicates.unwrap_or(true),
                            receive_own_posts: receive_own_posts.unwrap_or(false),
+                            enabled: enabled.unwrap_or(true),
                        },
                    )?;
                }
@ -260,6 +289,14 @@ fn run_app(opt: Opt) -> Result<()> {

 fn main() -> std::result::Result<(), i32> {
    let opt = Opt::from_args();
+    stderrlog::new()
+        .module(module_path!())
+        .module("mailpot")
+        .quiet(opt.quiet)
+        .verbosity(opt.verbose)
+        .timestamp(opt.ts.unwrap_or(stderrlog::Timestamp::Off))
+        .init()
+        .unwrap();
    if let Err(err) = run_app(opt) {
        println!("{}", err);
        std::process::exit(-1);
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@ -20,4 +20,5 @@ rusqlite = {version = "0.20.0"}
 serde = { version = "1.0.114" }
 serde_json = "1.0.57"
 toml = "^0.5"
+log = "0.4"
 xdg = "2.1.0"
--- a/core/migrations/2020-09-09-165759_membership_enabled/down.sql
+++ b/core/migrations/2020-09-09-165759_membership_enabled/down.sql
@ -0,0 +1,35 @@
+-- This file should undo anything in `up.sql`
+
+BEGIN TRANSACTION;
+PRAGMA foreign_keys = false;
+CREATE TEMPORARY TABLE membership_backup(
+  list                    INTEGER NOT NULL,
+  address                 TEXT NOT NULL,
+  name                    TEXT,
+  enabled BOOLEAN CHECK (enabled in (0, 1)) NOT NULL DEFAULT 1,
+  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
+);
+INSERT INTO membership_backup SELECT list,address,name,enabled,digest,hide_address,receive_own_posts,receive_duplicates,receive_confirmation FROM membership;
+DROP TABLE membership;
+CREATE TABLE 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
+);
+INSERT INTO membership SELECT list,address,name,digest,hide_address,receive_own_posts,receive_duplicates,receive_confirmation FROM membership_backup;
+DROP TABLE membership_backup;
+PRAGMA foreign_keys = true;
+COMMIT TRANSACTION;
--- a/core/migrations/2020-09-09-165759_membership_enabled/up.sql
+++ b/core/migrations/2020-09-09-165759_membership_enabled/up.sql
@ -0,0 +1,5 @@
+-- Your SQL goes here
+
+PRAGMA foreign_keys = false;
+ALTER TABLE membership ADD COLUMN enabled BOOLEAN CHECK (enabled in (0, 1)) NOT NULL DEFAULT 1;
+PRAGMA foreign_keys = true;
--- a/core/src/db.rs
+++ b/core/src/db.rs
@ -123,7 +123,7 @@ impl Database {
        let db_path = Self::db_path()?;
        let mut set_mode = false;
        if !db_path.exists() {
-            println!("Creating {} database in {}", DB_NAME, db_path.display());
+            info!("Creating {} database in {}", DB_NAME, db_path.display());
            set_mode = true;
        }
        let conn = SqliteConnection::establish(&db_path.to_str().unwrap())?;
@ -152,32 +152,75 @@ impl Database {
    }

    pub fn post(&self, env: Envelope, raw: &[u8]) -> Result<()> {
+        trace!("Received envelope to post: {:#?}", &env);
        let mut lists = self.list_lists()?;
-        let tos = env
-            .to()
-            .iter()
-            .map(|addr| addr.get_email())
-            .collect::<Vec<String>>();
+        let tos = env.to().iter().cloned().collect::<Vec<_>>();
        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());
        }
+        for t in &tos {
+            if let Some((addr, subaddr)) = t.subaddress("+") {
+                lists.retain(|list| {
+                    if !addr.contains_address(&list.list_address()) {
+                        return true;
+                    }
+                    if let Err(err) = self.request(
+                        list,
+                        match subaddr.as_str() {
+                            "subscribe" | "request" if env.subject().trim() == "subscribe" => {
+                                ListRequest::Subscribe
+                            }
+                            "unsubscribe" | "request" if env.subject().trim() == "unsubscribe" => {
+                                ListRequest::Unsubscribe
+                            }
+                            "request" => ListRequest::Other(env.subject().trim().to_string()),
+                            _ => {
+                                trace!(
+                                    "unknown action = {} for addresses {:?} in list {}",
+                                    subaddr,
+                                    env.from(),
+                                    list
+                                );
+                                ListRequest::Other(subaddr.trim().to_string())
+                            }
+                        },
+                        &env,
+                        raw,
+                    ) {
+                        info!("Processing request returned error: {}", err);
+                    }
+                    false
+                });
+            }
+        }
+
+        lists.retain(|list| {
+            trace!(
+                "Is post related to list {}? {}",
+                &list,
+                tos.iter().any(|a| a.contains_address(&list.list_address()))
+            );

-        lists.retain(|list| tos.iter().any(|a| a == &list.address));
+            tos.iter().any(|a| a.contains_address(&list.list_address()))
+        });
        if lists.is_empty() {
-            return Err("Envelope To: field doesn't contain any known lists!".into());
+            return Ok(());
        }

        let mut configuration = crate::config::Configuration::new();
        crate::config::CONFIG.with(|f| {
            configuration = f.borrow().clone();
        });
+        trace!("Configuration is {:#?}", &configuration);
        use crate::post::{Post, PostAction};
        for mut list in lists {
+            trace!("Examining list {}", list.list_id());
            let filters = self.get_list_filters(&list);
            let memberships = self.list_members(list.pk)?;
+            trace!("List members {:#?}", &memberships);
            let mut post = Post {
                policy: self.get_list_policy(list.pk)?,
                list_owners: self.get_list_owners(list.pk)?,
@ -191,10 +234,9 @@ impl Database {
            let result = filters
                .into_iter()
                .fold(Ok(&mut post), |p, f| p.and_then(|p| f.feed(p)));
-            eprintln!("result {:?}", result);
+            trace!("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();
@ -233,4 +275,80 @@ impl Database {

        Ok(())
    }
+
+    pub fn request(
+        &self,
+        list: &MailingList,
+        request: ListRequest,
+        env: &Envelope,
+        _raw: &[u8],
+    ) -> Result<()> {
+        match request {
+            ListRequest::Subscribe => {
+                trace!(
+                    "subscribe action for addresses {:?} in list {}",
+                    env.from(),
+                    list
+                );
+
+                let list_policy = self.get_list_policy(list.pk)?;
+                let approval_needed = list_policy
+                    .as_ref()
+                    .map(|p| p.approval_needed)
+                    .unwrap_or(false);
+                for f in env.from() {
+                    let membership = ListMembership {
+                        list: list.pk,
+                        address: f.get_email(),
+                        name: f.get_display_name(),
+                        digest: false,
+                        hide_address: false,
+                        receive_duplicates: true,
+                        receive_own_posts: false,
+                        receive_confirmation: true,
+                        enabled: !approval_needed,
+                    };
+                    if approval_needed {
+                        //FIXME: send notification to list-owner
+                    }
+                    if let Err(_err) = self.add_member(list.pk, membership) {
+                        //FIXME: send failure notice to f
+                    } else {
+                        //FIXME: send success notice
+                    }
+                }
+            }
+            ListRequest::Unsubscribe => {
+                trace!(
+                    "unsubscribe action for addresses {:?} in list {}",
+                    env.from(),
+                    list
+                );
+                for f in env.from() {
+                    if let Err(_err) = self.remove_member(list.pk, &f.get_email()) {
+                        //FIXME: send failure notice to f
+                    } else {
+                        //FIXME: send success notice to f
+                    }
+                }
+            }
+            ListRequest::Other(ref req) if req == "owner" => {
+                trace!(
+                    "list-owner mail action for addresses {:?} in list {}",
+                    env.from(),
+                    list
+                );
+                //FIXME: mail to list-owner
+            }
+            ListRequest::Other(ref req) => {
+                trace!(
+                    "unknown request action {} for addresses {:?} in list {}",
+                    req,
+                    env.from(),
+                    list
+                );
+            }
+        }
+        Ok(())
+    }
 }
--- a/core/src/lib.rs
+++ b/core/src/lib.rs
@ -20,6 +20,7 @@
 #![recursion_limit = "1024"]
 //#![warn(missing_docs)]

+use log::{info, trace};
 #[macro_use]
 extern crate error_chain;
 #[macro_use]
--- a/core/src/models.rs
+++ b/core/src/models.rs
@ -20,6 +20,8 @@
 use super::*;
 use schema::*;

+use melib::email::Address;
+
 #[derive(Debug, Clone, Insertable, Queryable, Deserialize, Serialize)]
 #[table_name = "mailing_lists"]
 pub struct MailingList {
@ -69,6 +71,10 @@ impl MailingList {
    pub fn list_archive(&self) -> Option<String> {
        self.archive_url.as_ref().map(|url| format!("<{}>", url))
    }
+
+    pub fn list_address(&self) -> Address {
+        Address::new(Some(self.name.clone()), self.address.clone())
+    }
 }

 #[derive(Debug, Clone, Insertable, Queryable, Deserialize, Serialize)]
@ -82,36 +88,29 @@ pub struct ListMembership {
    pub receive_duplicates: bool,
    pub receive_own_posts: bool,
    pub receive_confirmation: bool,
+    pub enabled: bool,
 }

 impl std::fmt::Display for ListMembership {
    fn fmt(&self, fmt: &mut std::fmt::Formatter) -> std::fmt::Result {
-        if let Some(name) = self.name.as_ref() {
-            write!(
-                fmt,
-                "{} <{}> [digest: {}, hide_address: {}]",
-                name, self.address, self.digest, self.hide_address
-            )
-        } else {
-            write!(
-                fmt,
-                "{} [digest: {}, hide_address: {}]",
-                self.address, self.digest, self.hide_address
-            )
-        }
+        write!(
+            fmt,
+            "{} [digest: {}, hide_address: {} {}]",
+            self.into_address(),
+            self.digest,
+            self.hide_address,
+            if self.enabled {
+                "enabled"
+            } else {
+                "not enabled"
+            },
+        )
    }
 }

 impl ListMembership {
-    pub fn into_address(&self) -> melib::email::Address {
-        use melib::email::Address;
-        use melib::email::StrBuilder;
-        use melib::MailboxAddress;
-        if let Some(name) = self.name.as_ref() {
-            melib::make_address!(name, self.address)
-        } else {
-            melib::make_address!("", self.address)
-        }
+    pub fn into_address(&self) -> Address {
+        Address::new(self.name.clone(), self.address.clone())
    }
 }

@ -142,15 +141,7 @@ pub struct ListOwner {

 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)
-        }
+        write!(fmt, "[#{} {}] {}", self.pk, self.list, self.into_address())
    }
 }

@ -165,6 +156,20 @@ impl From<ListOwner> for ListMembership {
            receive_duplicates: true,
            receive_own_posts: false,
            receive_confirmation: true,
+            enabled: true,
        }
    }
 }
+
+impl ListOwner {
+    pub fn into_address(&self) -> Address {
+        Address::new(self.name.clone(), self.address.clone())
+    }
+}
+
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub enum ListRequest {
+    Subscribe,
+    Unsubscribe,
+    Other(String),
+}
--- a/core/src/post.rs
+++ b/core/src/post.rs
@ -77,8 +77,10 @@ impl PostFilter for PostRightsCheck {
        self: Box<Self>,
        post: &'p mut Post<'list>,
    ) -> std::result::Result<&'p mut Post<'list>, String> {
+        trace!("Running PostRightsCheck filter");
        if let Some(ref policy) = post.policy {
            if policy.announce_only {
+                trace!("post policy is announce_only");
                let owner_addresses = post
                    .list_owners
                    .iter()
@ -87,15 +89,23 @@ impl PostFilter for PostRightsCheck {
                        lm.into_address()
                    })
                    .collect::<Vec<Address>>();
+                trace!("Owner addresses are: {:#?}", &owner_addresses);
+                trace!("Envelope from is: {:?}", &post.from);
                if !owner_addresses.iter().any(|addr| *addr == post.from) {
+                    trace!("Envelope From does not include any owner");
                    return Err("You are not allowed to post on this list.".to_string());
                }
            } else if policy.subscriber_only {
+                trace!("post policy is subscriber_only");
                let email_from = post.from.get_email();
+                trace!("post from is {:?}", &email_from);
+                trace!("post memberships are {:#?}", &post.memberships);
                if !post.memberships.iter().any(|lm| lm.address == email_from) {
+                    trace!("Envelope from is not subscribed to this list");
                    return Err("You are not subscribed to this list.".to_string());
                }
            } else if policy.approval_needed {
+                trace!("post policy says approval_needed");
                post.action = PostAction::Defer {
                    reason: "Approval from the list's moderators is required.".to_string(),
                };
@ -112,6 +122,7 @@ impl PostFilter for FixCRLF {
        self: Box<Self>,
        post: &'p mut Post<'list>,
    ) -> std::result::Result<&'p mut Post<'list>, String> {
+        trace!("Running FixCRLF filter");
        use std::io::prelude::*;
        let mut new_vec = Vec::with_capacity(post.bytes.len());
        for line in post.bytes.lines() {
@ -130,6 +141,7 @@ impl PostFilter for AddListHeaders {
        self: Box<Self>,
        post: &'p mut Post<'list>,
    ) -> std::result::Result<&'p mut Post<'list>, String> {
+        trace!("Running AddListHeaders filter");
        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()));
@ -174,6 +186,7 @@ impl PostFilter for ArchivedAtLink {
        self: Box<Self>,
        post: &'p mut Post<'list>,
    ) -> std::result::Result<&'p mut Post<'list>, String> {
+        trace!("Running ArchivedAtLink filter");
        Ok(post)
    }
 }
@ -186,14 +199,20 @@ impl PostFilter for FinalizeRecipients {
        self: Box<Self>,
        post: &'p mut Post<'list>,
    ) -> std::result::Result<&'p mut Post<'list>, String> {
+        trace!("Running FinalizeRecipients filter");
        let mut recipients = vec![];
        let mut digests = vec![];
        let email_from = post.from.get_email();
        for member in post.memberships {
+            trace!("examining member {:?}", &member);
+            if member.address != email_from {
+                trace!("member is submitter");
+            }
            if member.digest {
                if (member.address == email_from && member.receive_own_posts)
                    || (member.address != email_from)
                {
+                    trace!("Member gets digest");
                    digests.push(member.into_address());
                }
                continue;
@ -201,6 +220,7 @@ impl PostFilter for FinalizeRecipients {
            if (member.address == email_from && member.receive_own_posts)
                || (member.address != email_from)
            {
+                trace!("Member gets copy");
                recipients.push(member.into_address());
            }
            // TODO:
--- a/core/src/schema.rs
+++ b/core/src/schema.rs
@ -28,6 +28,7 @@ table! {
        receive_duplicates -> Bool,
        receive_own_posts -> Bool,
        receive_confirmation -> Bool,
+        enabled -> Bool,
    }
 }

--- a/core/src/schema.sql
+++ b/core/src/schema.sql
@ -32,6 +32,7 @@ CREATE TABLE IF NOT EXISTS membership (
  list                    INTEGER NOT NULL,
  address                 TEXT NOT NULL,
  name                    TEXT,
+  enabled BOOLEAN CHECK (enabled in (0, 1)) NOT NULL DEFAULT 1,
  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,
--- a/core/src/schema.sql.m4
+++ b/core/src/schema.sql.m4
@ -36,6 +36,7 @@ CREATE TABLE IF NOT EXISTS membership (
  list                    INTEGER NOT NULL,
  address                 TEXT NOT NULL,
  name                    TEXT,
+  BOOLEAN_TYPE(enabled) DEFAULT BOOLEAN_TRUE(),
  BOOLEAN_TYPE(digest) DEFAULT BOOLEAN_FALSE(),
  BOOLEAN_TYPE(hide_address) DEFAULT BOOLEAN_FALSE(),
  BOOLEAN_TYPE(receive_duplicates) DEFAULT BOOLEAN_TRUE(),