IPFS: use IPFS Gateway API (#5600)

* ipfs: create new gateway and rpc clients

Introduces a new IPFS gateway client, refactoring the existing
RPC API client to reuse the new code. Also introduces some new
types and concepts to make working with IPFS easier.

* ipfs: use new ipfs types instead of old ones

Integrates the new IPFS types and clients into the existing codebase,
replacing the old types and client.

Cargo.toml

@@ -32,6 +32,7 @@ async-graphql-axum = "7.0.6"
 axum = "0.7.5"
 chrono = "0.4.38"
 clap = { version = "4.5.4", features = ["derive", "env"] }
+derivative = "2.2.0"
 diesel = { version = "2.1.3", features = ["postgres", "serde_json", "numeric", "r2d2", "chrono", "uuid"] }
 diesel-derive-enum = { version = "2.1.0", features = ["postgres"] }
 diesel-dynamic-schema = "0.2.1"

core/Cargo.toml

@@ -25,8 +25,4 @@ anyhow = "1.0"
 
 [dev-dependencies]
 tower-test = { git = "https://github.com/tower-rs/tower.git" }
-ipfs-api-backend-hyper = "0.6"
-ipfs-api = { version = "0.17.0", features = [
-    "with-hyper-rustls",
-], default-features = false }
 uuid = { version = "1.9.1", features = ["v4"] }

core/src/polling_monitor/ipfs_service.rs

@@ -1,29 +1,27 @@
+use std::sync::Arc;
+use std::time::Duration;
+
 use anyhow::{anyhow, Error};
 use bytes::Bytes;
 use graph::futures03::future::BoxFuture;
-use graph::{
-    derive::CheapClone,
-    ipfs_client::{CidFile, IpfsClient},
-    prelude::CheapClone,
-};
-use std::time::Duration;
+use graph::ipfs::ContentPath;
+use graph::ipfs::IpfsClient;
+use graph::ipfs::IpfsError;
+use graph::{derive::CheapClone, prelude::CheapClone};
 use tower::{buffer::Buffer, ServiceBuilder, ServiceExt};
 
-const CLOUDFLARE_TIMEOUT: u16 = 524;
-const GATEWAY_TIMEOUT: u16 = 504;
-
-pub type IpfsService = Buffer<CidFile, BoxFuture<'static, Result<Option<Bytes>, Error>>>;
+pub type IpfsService = Buffer<ContentPath, BoxFuture<'static, Result<Option<Bytes>, Error>>>;
 
 pub fn ipfs_service(
-    client: IpfsClient,
+    client: Arc<dyn IpfsClient>,
     max_file_size: usize,
     timeout: Duration,
     rate_limit: u16,
 ) -> IpfsService {
     let ipfs = IpfsServiceInner {
         client,
-        max_file_size,
         timeout,
+        max_file_size,
     };
 
     let svc = ServiceBuilder::new()
@@ -38,37 +36,30 @@ pub fn ipfs_service(
 
 #[derive(Clone, CheapClone)]
 struct IpfsServiceInner {
-    client: IpfsClient,
-    max_file_size: usize,
+    client: Arc<dyn IpfsClient>,
     timeout: Duration,
+    max_file_size: usize,
 }
 
 impl IpfsServiceInner {
-    async fn call_inner(self, req: CidFile) -> Result<Option<Bytes>, Error> {
-        let CidFile { cid, path } = req;
-        let multihash = cid.hash().code();
+    async fn call_inner(self, path: ContentPath) -> Result<Option<Bytes>, Error> {
+        let multihash = path.cid().hash().code();
         if !SAFE_MULTIHASHES.contains(&multihash) {
             return Err(anyhow!("CID multihash {} is not allowed", multihash));
         }
 
-        let cid_str = match path {
-            Some(path) => format!("{}/{}", cid, path),
-            None => cid.to_string(),
-        };
-
         let res = self
             .client
-            .cat_all(&cid_str, Some(self.timeout), self.max_file_size)
+            .cat(&path, self.max_file_size, Some(self.timeout))
             .await;
 
         match res {
             Ok(file_bytes) => Ok(Some(file_bytes)),
-            Err(e) => match e.status().map(|e| e.as_u16()) {
-                // Timeouts in IPFS mean the file is not available, so we return `None`
-                Some(GATEWAY_TIMEOUT) | Some(CLOUDFLARE_TIMEOUT) => return Ok(None),
-                _ if e.is_timeout() => return Ok(None),
-                _ => return Err(e.into()),
-            },
+            Err(IpfsError::RequestFailed(err)) if err.is_timeout() => {
+                // Timeouts in IPFS mean that the content is not available, so we return `None`.
+                Ok(None)
+            }
+            Err(err) => Err(err.into()),
         }
     }
 }
@@ -96,48 +87,42 @@ const SAFE_MULTIHASHES: [u64; 15] = [
 
 #[cfg(test)]
 mod test {
-    use ipfs::IpfsApi;
-    use ipfs_api as ipfs;
-    use std::{fs, str::FromStr, time::Duration};
+    use std::time::Duration;
+
+    use graph::components::link_resolver::ArweaveClient;
+    use graph::components::link_resolver::ArweaveResolver;
+    use graph::data::value::Word;
+    use graph::ipfs::test_utils::add_files_to_local_ipfs_node_for_testing;
+    use graph::ipfs::IpfsRpcClient;
+    use graph::ipfs::ServerAddress;
+    use graph::tokio;
     use tower::ServiceExt;
-
-    use cid::Cid;
-    use graph::{
-        components::link_resolver::{ArweaveClient, ArweaveResolver},
-        data::value::Word,
-        ipfs_client::IpfsClient,
-        tokio,
-    };
-
     use uuid::Uuid;
 
+    use super::*;
+
     #[tokio::test]
     async fn cat_file_in_folder() {
-        let path = "./tests/fixtures/ipfs_folder";
-        let uid = Uuid::new_v4().to_string();
-        fs::write(format!("{}/random.txt", path), &uid).unwrap();
+        let random_bytes = Uuid::new_v4().as_bytes().to_vec();
+        let ipfs_file = ("dir/file.txt", random_bytes.clone());
 
-        let cl: ipfs::IpfsClient = ipfs::IpfsClient::default();
+        let add_resp = add_files_to_local_ipfs_node_for_testing([ipfs_file])
+            .await
+            .unwrap();
 
-        let rsp = cl.add_path(path).await.unwrap();
+        let dir_cid = add_resp.into_iter().find(|x| x.name == "dir").unwrap().hash;
 
-        let ipfs_folder = rsp.iter().find(|rsp| rsp.name == "ipfs_folder").unwrap();
+        let client =
+            IpfsRpcClient::new_unchecked(ServerAddress::local_rpc_api(), &graph::log::discard())
+                .unwrap()
+                .into_boxed();
 
-        let local = IpfsClient::localhost();
-        let cid = Cid::from_str(&ipfs_folder.hash).unwrap();
-        let file = "random.txt".to_string();
+        let svc = ipfs_service(client.into(), 100000, Duration::from_secs(30), 10);
 
-        let svc = super::ipfs_service(local, 100000, Duration::from_secs(5), 10);
+        let path = ContentPath::new(format!("{dir_cid}/file.txt")).unwrap();
+        let content = svc.oneshot(path).await.unwrap().unwrap();
 
-        let content = svc
-            .oneshot(super::CidFile {
-                cid,
-                path: Some(file),
-            })
-            .await
-            .unwrap()
-            .unwrap();
-        assert_eq!(content.to_vec(), uid.as_bytes().to_vec());
+        assert_eq!(content.to_vec(), random_bytes);
     }
 
     #[tokio::test]

core/src/subgraph/context/mod.rs

@@ -18,7 +18,7 @@ use graph::{
         CausalityRegion, DataSource, DataSourceTemplate,
     },
     derive::CheapClone,
-    ipfs_client::CidFile,
+    ipfs::ContentPath,
     prelude::{
         BlockNumber, BlockPtr, BlockState, CancelGuard, CheapClone, DeploymentHash,
         MetricsRegistry, RuntimeHostBuilder, SubgraphCountMetric, SubgraphInstanceMetrics,
@@ -228,8 +228,8 @@ impl<C: Blockchain, T: RuntimeHostBuilder<C>> IndexingContext<C, T> {
 }
 
 pub struct OffchainMonitor {
-    ipfs_monitor: PollingMonitor<CidFile>,
-    ipfs_monitor_rx: mpsc::UnboundedReceiver<(CidFile, Bytes)>,
+    ipfs_monitor: PollingMonitor<ContentPath>,
+    ipfs_monitor_rx: mpsc::UnboundedReceiver<(ContentPath, Bytes)>,
     arweave_monitor: PollingMonitor<Base64>,
     arweave_monitor_rx: mpsc::UnboundedReceiver<(Base64, Bytes)>,
 }

graph/Cargo.toml

@@ -15,6 +15,7 @@ atomic_refcell = "0.1.13"
 old_bigdecimal = { version = "=0.1.2", features = ["serde"], package = "bigdecimal" }
 bytes = "1.0.1"
 cid = "0.11.1"
+derivative = { workspace = true }
 graph_derive = { path = "./derive" }
 diesel = { workspace = true }
 diesel_derives = { workspace = true }
@@ -90,7 +91,7 @@ defer = "0.2"
 # Our fork contains patches to make some fields optional for Celo and Fantom compatibility.
 # Without the "arbitrary_precision" feature, we get the error `data did not match any variant of untagged enum Response`.
 web3 = { git = "https://github.com/graphprotocol/rust-web3", branch = "graph-patches-onto-0.18", features = [
-    "arbitrary_precision","test"
+    "arbitrary_precision", "test"
 ] }
 serde_plain = "1.0.2"
 csv = "1.3.0"
@@ -100,6 +101,7 @@ object_store = { version = "0.10.1", features = ["gcp"] }
 clap.workspace = true
 maplit = "1.0.2"
 hex-literal = "0.4"
+wiremock = "0.6.1"
 
 [build-dependencies]
 tonic-build = { workspace = true }