Add media directory commands

src/cli.rs

@@ -2,8 +2,12 @@ use clap::{Parser,Subcommand,ArgAction};
 use fedichat::client::{ClientMessage,SignedClientMessage,AuthMethod};
 use fedichat::ServerAddr;
 use fedichat::state::StatePath;
+use std::fs::File;
+use std::io::Read;
+use std::path::PathBuf;
 use time::OffsetDateTime;
 use thiserror::Error;
+use uuid::Uuid;
 
 // Everything except server, user, and password lives in these
 
@@ -61,6 +65,15 @@ pub enum Command {
         #[clap(short, long, value_parser=Room::from_str)]
         room: Room,
     },
+    Upload {
+        file: PathBuf,
+    },
+    Fetch {
+        #[clap(short, long)]
+        id: String,
+        #[clap(short, long)]
+        file: PathBuf
+    },
     GetState {
         #[clap(short, long, value_parser=Room::from_str)]
         room: Room,
@@ -90,9 +103,9 @@ pub enum Command {
 }
 impl Command {
     // Returns clientmessage and target server
-    fn into_client_message(self,username: String) -> (ClientMessage,Option<ServerAddr>) {
+    fn into_client_message(self,username: String) -> Result<(ClientMessage,Option<ServerAddr>),MessageError> {
         use Command::*;
-        match self {
+        Ok(match self {
             CreateUser {
                 password,
             } => (ClientMessage::UserCreate {username, password},None),
@@ -118,6 +131,14 @@ impl Command {
             Create {
                 room,
             } => (ClientMessage::RoomCreate{room_id: room.get_coord()},room.get_server()),
+            Upload {file} => {
+                let mut buf = Vec::with_capacity(4096);
+                let mut file = File::open(file)?;
+                file.read_to_end(&mut buf)?;
+                (ClientMessage::MediaUpload{bytes: buf},None)
+
+            },
+            Fetch {file: _, id} => (ClientMessage::MediaFetch{id: Uuid::parse_str(&id)?},None),
             GetState {
                 room,
                 path,
@@ -137,20 +158,19 @@ impl Command {
                 body,
                 user,
             } => (ClientMessage::MessagePost{body, user: user.clone()},Some(ServerAddr(user.server))),
-
-        }
+        })
         
     }
-    pub fn into_signed_message(self, username: String) -> SignedClientMessage {
-        let (message,target) = self.into_client_message(username);
-        SignedClientMessage {
+    pub fn into_signed_message(self, username: String) -> Result<SignedClientMessage,MessageError> {
+        let (message,target) = self.into_client_message(username)?;
+        Ok(SignedClientMessage {
 
             message,
             target,
             timestamp: OffsetDateTime::now_utc(),
             // TODO: actually implement signatures
             signature: Box::new([0])
-        }
+        })
 
     }
     pub fn needs_auth(&self) -> bool {
@@ -180,7 +200,7 @@ impl Command {
                 signature: Box::new([0])
             })
         }
-        messages.push(self.into_signed_message(username));
+        messages.push(self.into_signed_message(username)?);
         // If this message is authenticating us then we should be generating 
         // a new token and saving it for future commands
         if !needs_auth {
@@ -198,7 +218,12 @@ impl Command {
 #[derive(Error,Debug)]
 pub enum MessageError {
     #[error("Command needs a token. Login or create an account first.")]
-    NoToken
+    NoToken,
+    #[error("Error while parsing uuid: {0}")]
+    UuidError(#[from] uuid::Error),
+    #[error("Error during file IO: {0}")]
+    IoError(#[from] std::io::Error),
+
 }