feat: add paste command both local and remote

crates/voidpin/proto/voidpin/v1/voidpin.proto

@@ -2,12 +2,20 @@ syntax = "proto3";
 
 package voidpin.v1;
 
-service VoidPin {
-  rpc Copy(CopyRequest) returns (CopyResponse);
-}
-
 message CopyRequest {
  bytes content = 1;
 }
 
 message CopyResponse {}
+
+message PasteRequest {
+}
+
+message PasteResponse {
+ bytes content = 1;
+}
+
+service VoidPin {
+  rpc Copy(CopyRequest) returns (CopyResponse);
+  rpc Paste(PasteRequest) returns (PasteResponse);
+}

crates/voidpin/src/copy.rs

@@ -1,7 +1,7 @@
 use std::process::Stdio;
 
 use anyhow::Context;
-use tokio::io::AsyncWriteExt;
+use tokio::io::{AsyncReadExt, AsyncWriteExt};
 
 use crate::state::State;
 
@@ -30,10 +30,6 @@ impl LocalCopier {
         #[cfg(target_os = "windows")]
         let mut copy_process = {
             todo!("windows not supported yet");
-
-            tokio::process::Command::new("wl-copy")
-                .stdin(Stdio::piped())
-                .spawn()?
         };
 
         if let Some(mut stdin_handle) = copy_process.stdin.take() {
@@ -52,6 +48,40 @@ impl LocalCopier {
 
         Ok(())
     }
+
+    pub async fn paste(&self) -> anyhow::Result<Vec<u8>> {
+        // FIXME: hardcode for macos
+        #[cfg(target_os = "macos")]
+        let mut paste_process = {
+            tokio::process::Command::new("pbpaste")
+                .stdin(Stdio::piped())
+                .spawn()?
+        };
+        #[cfg(target_os = "linux")]
+        let mut paste_process = {
+            tokio::process::Command::new("wl-paste")
+                .stdin(Stdio::piped())
+                .spawn()?
+        };
+        #[cfg(target_os = "windows")]
+        let mut paste_process = {
+            todo!("windows not supported yet");
+        };
+        let mut buf = Vec::new();
+
+        if let Some(mut stdout_handle) = paste_process.stdout.take() {
+            stdout_handle
+                .read_to_end(&mut buf)
+                .await
+                .context("failed to write input to paste process")?;
+        }
+
+        let status = paste_process.wait().await?;
+
+        tracing::info!("paste process ended with status: {:?}", status);
+
+        Ok(buf)
+    }
 }
 
 pub trait LocalCopierState {

crates/voidpin/src/gen/voidpin.v1.rs

@@ -10,5 +10,15 @@ pub struct CopyRequest {
 #[derive(Clone, Copy, PartialEq, ::prost::Message)]
 pub struct CopyResponse {
 }
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct PasteRequest {
+}
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct PasteResponse {
+    #[prost(bytes="vec", tag="1")]
+    pub content: ::prost::alloc::vec::Vec<u8>,
+}
 include!("voidpin.v1.tonic.rs");
 // @@protoc_insertion_point(module)

crates/voidpin/src/gen/voidpin.v1.tonic.rs

@@ -105,6 +105,26 @@ pub mod void_pin_client {
             req.extensions_mut().insert(GrpcMethod::new("voidpin.v1.VoidPin", "Copy"));
             self.inner.unary(req, path, codec).await
         }
+        ///
+        pub async fn paste(
+            &mut self,
+            request: impl tonic::IntoRequest<super::PasteRequest>,
+        ) -> std::result::Result<tonic::Response<super::PasteResponse>, tonic::Status> {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::new(
+                        tonic::Code::Unknown,
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static("/voidpin.v1.VoidPin/Paste");
+            let mut req = request.into_request();
+            req.extensions_mut().insert(GrpcMethod::new("voidpin.v1.VoidPin", "Paste"));
+            self.inner.unary(req, path, codec).await
+        }
     }
 }
 /// Generated server implementations.
@@ -119,6 +139,11 @@ pub mod void_pin_server {
             &self,
             request: tonic::Request<super::CopyRequest>,
         ) -> std::result::Result<tonic::Response<super::CopyResponse>, tonic::Status>;
+        ///
+        async fn paste(
+            &self,
+            request: tonic::Request<super::PasteRequest>,
+        ) -> std::result::Result<tonic::Response<super::PasteResponse>, tonic::Status>;
     }
     ///
     #[derive(Debug)]
@@ -244,6 +269,50 @@ pub mod void_pin_server {
                     };
                     Box::pin(fut)
                 }
+                "/voidpin.v1.VoidPin/Paste" => {
+                    #[allow(non_camel_case_types)]
+                    struct PasteSvc<T: VoidPin>(pub Arc<T>);
+                    impl<T: VoidPin> tonic::server::UnaryService<super::PasteRequest>
+                    for PasteSvc<T> {
+                        type Response = super::PasteResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::PasteRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as VoidPin>::paste(&inner, request).await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let inner = inner.0;
+                        let method = PasteSvc(inner);
+                        let codec = tonic::codec::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
                 _ => {
                     Box::pin(async move {
                         Ok(

crates/voidpin/src/grpc_server.rs

@@ -1,4 +1,8 @@
-use crate::{copy::LocalCopierState, state::State};
+use crate::{
+    copy::LocalCopierState,
+    grpc::{PasteRequest, PasteResponse},
+    state::State,
+};
 
 #[derive(Clone)]
 pub struct GrpcServer {
@@ -27,4 +31,20 @@ impl crate::grpc::void_pin_server::VoidPin for GrpcServer {
 
         Ok(tonic::Response::new(crate::grpc::CopyResponse {}))
     }
+
+    async fn paste(
+        &self,
+        _request: tonic::Request<PasteRequest>,
+    ) -> std::result::Result<tonic::Response<PasteResponse>, tonic::Status> {
+        let output = self
+            .state
+            .local_copier()
+            .paste()
+            .await
+            .map_err(|e| tonic::Status::internal(e.to_string()))?;
+
+        Ok(tonic::Response::new(crate::grpc::PasteResponse {
+            content: output,
+        }))
+    }
 }

crates/voidpin/src/main.rs

@@ -7,6 +7,7 @@ use grpc::void_pin_server::VoidPinServer;
 use grpc_server::GrpcServer;
 use remote_copy::RemoteCopierState;
 use state::State;
+use tokio::io::AsyncWriteExt;
 use tonic::transport;
 
 mod grpc {
@@ -33,6 +34,7 @@ enum Commands {
         grpc: SocketAddr,
     },
     Copy {},
+    Paste {},
     Remote {
         #[command(subcommand)]
         command: RemoteCommands,
@@ -49,6 +51,14 @@ enum RemoteCommands {
         )]
         remote_host: String,
     },
+    Paste {
+        #[arg(
+            long = "remote-host",
+            env = "VOIDPIN_REMOTE",
+            default_value = "http://0.0.0.0:7900"
+        )]
+        remote_host: String,
+    },
 }
 
 #[tokio::main]
@@ -103,6 +113,21 @@ async fn main() -> anyhow::Result<()> {
             tracing::debug!(content = &input, "found content");
             state.local_copier().copy(input.as_bytes()).await?;
         }
+        Commands::Paste {} => {
+            let mut stdout = tokio::io::stdout();
+            if let Ok(remote_host) = std::env::var("VOIDPIN_REMOTE") {
+                let output = state.remote_copier(&remote_host).paste().await?;
+
+                stdout.write_all(&output).await?;
+                stdout.flush().await?;
+
+                return Ok(());
+            }
+
+            let output = state.local_copier().paste().await?;
+            stdout.write_all(&output).await?;
+            stdout.flush().await?;
+        }
         Commands::Remote { command } => match command {
             RemoteCommands::Copy { remote_host } => {
                 let mut input = String::new();
@@ -121,6 +146,13 @@ async fn main() -> anyhow::Result<()> {
                     .copy(input.as_bytes())
                     .await?;
             }
+            RemoteCommands::Paste { remote_host } => {
+                let output = state.remote_copier(&remote_host).paste().await?;
+
+                let mut stdout = tokio::io::stdout();
+                stdout.write_all(&output).await?;
+                stdout.flush().await?;
+            }
         },
     }
 

crates/voidpin/src/remote_copy.rs

@@ -1,6 +1,9 @@
 use tonic::transport::{Channel, ClientTlsConfig};
 
-use crate::{grpc::CopyRequest, state::State};
+use crate::{
+    grpc::{CopyRequest, PasteRequest},
+    state::State,
+};
 
 #[derive(Default)]
 pub struct RemoteCopier {
@@ -37,6 +40,29 @@ impl RemoteCopier {
 
         Ok(())
     }
+
+    pub async fn paste(&self) -> anyhow::Result<Vec<u8>> {
+        let tls = ClientTlsConfig::new();
+        let channel = Channel::from_shared(self.host.clone())?
+            .tls_config(if self.host.starts_with("https") {
+                tls.with_native_roots()
+            } else {
+                tls
+            })?
+            .connect()
+            .await?;
+
+        tracing::debug!("establishing connection to remote");
+        let mut client = crate::grpc::void_pin_client::VoidPinClient::new(channel);
+
+        tracing::info!("sending paste request");
+        let resp = client.paste(PasteRequest {}).await?;
+
+        tracing::info!("received paste response");
+        let output = resp.into_inner().content;
+
+        Ok(output)
+    }
 }
 
 pub trait RemoteCopierState {