mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 15:24:46 -05:00
652 lines
22 KiB
Rust
652 lines
22 KiB
Rust
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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use crate::cache;
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use crate::colors;
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use crate::compat;
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use crate::config_file::ConfigFile;
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use crate::deno_dir;
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use crate::emit;
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use crate::errors::get_module_graph_error_class;
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use crate::file_fetcher::CacheSetting;
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use crate::file_fetcher::FileFetcher;
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use crate::flags;
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use crate::http_cache;
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use crate::lockfile::as_maybe_locker;
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use crate::lockfile::Lockfile;
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use crate::resolver::ImportMapResolver;
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use crate::source_maps::SourceMapGetter;
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use crate::version;
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use deno_core::error::anyhow;
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use deno_core::error::custom_error;
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use deno_core::error::get_custom_error_class;
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use deno_core::error::AnyError;
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use deno_core::error::Context;
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use deno_core::parking_lot::Mutex;
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use deno_core::resolve_url;
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use deno_core::url::Url;
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use deno_core::CompiledWasmModuleStore;
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use deno_core::ModuleSource;
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use deno_core::ModuleSpecifier;
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use deno_core::SharedArrayBufferStore;
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use deno_runtime::deno_broadcast_channel::InMemoryBroadcastChannel;
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use deno_runtime::deno_web::BlobStore;
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use deno_runtime::inspector_server::InspectorServer;
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use deno_runtime::permissions::Permissions;
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use deno_tls::rustls::RootCertStore;
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use deno_tls::rustls_native_certs::load_native_certs;
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use deno_tls::webpki_roots::TLS_SERVER_ROOTS;
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use import_map::ImportMap;
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use std::collections::HashMap;
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use std::collections::HashSet;
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use std::env;
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use std::fs::File;
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use std::io::BufReader;
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use std::ops::Deref;
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use std::sync::Arc;
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/// This structure represents state of single "deno" program.
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///
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/// It is shared by all created workers (thus V8 isolates).
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#[derive(Clone)]
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pub struct ProcState(Arc<Inner>);
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pub struct Inner {
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/// Flags parsed from `argv` contents.
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pub flags: flags::Flags,
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pub dir: deno_dir::DenoDir,
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pub coverage_dir: Option<String>,
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pub file_fetcher: FileFetcher,
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modules: Arc<Mutex<HashMap<ModuleSpecifier, Result<ModuleSource, AnyError>>>>,
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pub lockfile: Option<Arc<Mutex<Lockfile>>>,
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pub maybe_config_file: Option<ConfigFile>,
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pub maybe_import_map: Option<ImportMap>,
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pub maybe_inspector_server: Option<Arc<InspectorServer>>,
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// deno_graph detects all sorts of issues at build time (prepare_module_load)
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// but if they are errors at that stage, the don't cause the correct behaviors
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// so we cache the error and then surface it when appropriate (e.g. load)
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pub(crate) maybe_graph_error:
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Arc<Mutex<Option<deno_graph::ModuleGraphError>>>,
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// because the graph detects resolution issues early, but is build and dropped
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// during the `prepare_module_load` method, we need to extract out the module
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// resolution map so that those errors can be surfaced at the appropriate time
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resolution_map:
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Arc<Mutex<HashMap<ModuleSpecifier, HashMap<String, deno_graph::Resolved>>>>,
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// in some cases we want to provide the span where the resolution error
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// occurred but need to surface it on load, but on load we don't know who the
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// referrer and span was, so we need to cache those
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resolved_map: Arc<Mutex<HashMap<ModuleSpecifier, deno_graph::Span>>>,
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pub root_cert_store: Option<RootCertStore>,
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pub blob_store: BlobStore,
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pub broadcast_channel: InMemoryBroadcastChannel,
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pub shared_array_buffer_store: SharedArrayBufferStore,
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pub compiled_wasm_module_store: CompiledWasmModuleStore,
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}
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impl Deref for ProcState {
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type Target = Arc<Inner>;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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impl ProcState {
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pub async fn build(flags: flags::Flags) -> Result<Self, AnyError> {
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let maybe_custom_root = flags
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.cache_path
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.clone()
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.or_else(|| env::var("DENO_DIR").map(String::into).ok());
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let dir = deno_dir::DenoDir::new(maybe_custom_root)?;
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let deps_cache_location = dir.root.join("deps");
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let http_cache = http_cache::HttpCache::new(&deps_cache_location);
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let mut root_cert_store = RootCertStore::empty();
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let ca_stores: Vec<String> = flags
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.ca_stores
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.clone()
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.or_else(|| {
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let env_ca_store = env::var("DENO_TLS_CA_STORE").ok()?;
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Some(
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env_ca_store
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.split(',')
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.map(|s| s.trim().to_string())
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.filter(|s| !s.is_empty())
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.collect(),
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)
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})
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.unwrap_or_else(|| vec!["mozilla".to_string()]);
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for store in ca_stores.iter() {
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match store.as_str() {
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"mozilla" => {
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root_cert_store.add_server_trust_anchors(&TLS_SERVER_ROOTS);
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}
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"system" => {
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let roots = load_native_certs()
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.expect("could not load platform certs")
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.roots;
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root_cert_store.roots.extend(roots);
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}
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_ => {
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return Err(anyhow!("Unknown certificate store \"{}\" specified (allowed: \"system,mozilla\")", store));
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}
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}
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}
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let ca_file = flags.ca_file.clone().or_else(|| env::var("DENO_CERT").ok());
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if let Some(ca_file) = ca_file {
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let certfile = File::open(&ca_file)?;
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let mut reader = BufReader::new(certfile);
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// This function does not return specific errors, if it fails give a generic message.
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if let Err(_err) = root_cert_store.add_pem_file(&mut reader) {
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return Err(anyhow!("Unable to add pem file to certificate store"));
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}
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}
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if let Some(insecure_allowlist) =
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flags.unsafely_ignore_certificate_errors.as_ref()
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{
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let domains = if insecure_allowlist.is_empty() {
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"for all hostnames".to_string()
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} else {
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format!("for: {}", insecure_allowlist.join(", "))
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};
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let msg =
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format!("DANGER: TLS certificate validation is disabled {}", domains);
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eprintln!("{}", colors::yellow(msg));
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}
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let cache_usage = if flags.cached_only {
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CacheSetting::Only
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} else if !flags.cache_blocklist.is_empty() {
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CacheSetting::ReloadSome(flags.cache_blocklist.clone())
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} else if flags.reload {
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CacheSetting::ReloadAll
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} else {
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CacheSetting::Use
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};
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let blob_store = BlobStore::default();
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let broadcast_channel = InMemoryBroadcastChannel::default();
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let shared_array_buffer_store = SharedArrayBufferStore::default();
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let compiled_wasm_module_store = CompiledWasmModuleStore::default();
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let file_fetcher = FileFetcher::new(
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http_cache,
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cache_usage,
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!flags.no_remote,
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Some(root_cert_store.clone()),
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blob_store.clone(),
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flags.unsafely_ignore_certificate_errors.clone(),
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)?;
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let lockfile = if let Some(filename) = &flags.lock {
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let lockfile = Lockfile::new(filename.clone(), flags.lock_write)?;
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Some(Arc::new(Mutex::new(lockfile)))
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} else {
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None
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};
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let maybe_config_file =
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if let Some(config_path) = flags.config_path.as_ref() {
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Some(ConfigFile::read(config_path)?)
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} else {
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None
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};
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let mut maybe_import_map: Option<ImportMap> =
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match flags.import_map_path.as_ref() {
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None => None,
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Some(import_map_url) => {
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let import_map_specifier =
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deno_core::resolve_url_or_path(import_map_url).context(format!(
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"Bad URL (\"{}\") for import map.",
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import_map_url
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))?;
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let file = file_fetcher
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.fetch(&import_map_specifier, &mut Permissions::allow_all())
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.await
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.context(format!(
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"Unable to load '{}' import map",
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import_map_specifier
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))?;
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let import_map =
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ImportMap::from_json(import_map_specifier.as_str(), &file.source)?;
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Some(import_map)
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}
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};
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if flags.compat {
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let mut import_map = match maybe_import_map {
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Some(import_map) => import_map,
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None => {
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// INFO: we're creating an empty import map, with its specifier pointing
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// to `CWD/node_import_map.json` to make sure the map still works as expected.
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let import_map_specifier =
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std::env::current_dir()?.join("node_import_map.json");
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ImportMap::from_json(import_map_specifier.to_str().unwrap(), "{}")
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.unwrap()
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}
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};
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let node_builtins = compat::get_mapped_node_builtins();
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let diagnostics = import_map.update_imports(node_builtins)?;
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if !diagnostics.is_empty() {
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log::info!("Some Node built-ins were not added to the import map:");
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for diagnostic in diagnostics {
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log::info!(" - {}", diagnostic);
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}
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log::info!("If you want to use Node built-ins provided by Deno remove listed specifiers from \"imports\" mapping in the import map file.");
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}
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maybe_import_map = Some(import_map);
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}
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let maybe_inspect_host = flags.inspect.or(flags.inspect_brk);
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let maybe_inspector_server = maybe_inspect_host.map(|host| {
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Arc::new(InspectorServer::new(host, version::get_user_agent()))
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});
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let coverage_dir = flags
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.coverage_dir
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.clone()
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.or_else(|| env::var("DENO_UNSTABLE_COVERAGE_DIR").ok());
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Ok(ProcState(Arc::new(Inner {
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dir,
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coverage_dir,
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flags,
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file_fetcher,
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modules: Default::default(),
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lockfile,
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maybe_config_file,
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maybe_import_map,
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maybe_inspector_server,
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maybe_graph_error: Default::default(),
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resolution_map: Default::default(),
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resolved_map: Default::default(),
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root_cert_store: Some(root_cert_store.clone()),
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blob_store,
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broadcast_channel,
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shared_array_buffer_store,
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compiled_wasm_module_store,
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})))
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}
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/// Return any imports that should be brought into the scope of the module
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/// graph.
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fn get_maybe_imports(&self) -> Option<Vec<(ModuleSpecifier, Vec<String>)>> {
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let mut imports = Vec::new();
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if let Some(config_file) = &self.maybe_config_file {
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if let Some(config_imports) = config_file.to_maybe_imports() {
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imports.extend(config_imports);
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}
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}
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if self.flags.compat {
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imports.extend(compat::get_node_imports());
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}
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if imports.is_empty() {
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None
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} else {
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Some(imports)
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}
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}
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/// This method is called when a module requested by the `JsRuntime` is not
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/// available, or in other sub-commands that need to "load" a module graph.
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/// The method will collect all the dependencies of the provided specifier,
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/// optionally checks their integrity, optionally type checks them, and
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/// ensures that any modules that needs to be transpiled is transpiled.
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///
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/// It then populates the `loadable_modules` with what can be loaded into v8.
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pub(crate) async fn prepare_module_load(
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&self,
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roots: Vec<ModuleSpecifier>,
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is_dynamic: bool,
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lib: emit::TypeLib,
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root_permissions: Permissions,
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dynamic_permissions: Permissions,
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) -> Result<(), AnyError> {
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let mut cache = cache::FetchCacher::new(
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self.dir.gen_cache.clone(),
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self.file_fetcher.clone(),
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root_permissions.clone(),
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dynamic_permissions.clone(),
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);
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let maybe_locker = as_maybe_locker(self.lockfile.clone());
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let maybe_imports = self.get_maybe_imports();
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let maybe_resolver =
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self.maybe_import_map.as_ref().map(ImportMapResolver::new);
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let graph = deno_graph::create_graph(
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roots,
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is_dynamic,
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maybe_imports,
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&mut cache,
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maybe_resolver.as_ref().map(|im| im.as_resolver()),
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maybe_locker,
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None,
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)
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.await;
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// If there was a locker, validate the integrity of all the modules in the
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// locker.
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emit::lock(&graph);
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// Determine any modules that have already been emitted this session and
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// should be skipped.
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let reload_exclusions: HashSet<ModuleSpecifier> = {
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let modules = self.modules.lock();
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modules.keys().cloned().collect()
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};
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let config_type = if self.flags.no_check {
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emit::ConfigType::Emit
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} else {
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emit::ConfigType::Check {
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tsc_emit: true,
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lib,
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}
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};
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let (ts_config, maybe_ignored_options) =
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emit::get_ts_config(config_type, self.maybe_config_file.as_ref(), None)?;
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let graph = Arc::new(graph);
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// we will store this in proc state later, as if we were to return it from
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// prepare_load, some dynamic errors would not be catchable
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let maybe_graph_error = graph.valid().err();
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if emit::valid_emit(
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graph.as_ref(),
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&cache,
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&ts_config,
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self.flags.reload,
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&reload_exclusions,
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) {
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if let Some(root) = graph.roots.get(0) {
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log::debug!("specifier \"{}\" and dependencies have valid emit, skipping checking and emitting", root);
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} else {
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log::debug!("rootless graph, skipping checking and emitting");
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}
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} else {
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if let Some(ignored_options) = maybe_ignored_options {
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log::warn!("{}", ignored_options);
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}
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let emit_result = if self.flags.no_check {
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let options = emit::EmitOptions {
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ts_config,
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reload_exclusions,
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reload: self.flags.reload,
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};
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emit::emit(graph.as_ref(), &mut cache, options)?
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} else {
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// here, we are type checking, so we want to error here if any of the
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// type only dependencies are missing or we have other errors with them
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// where as if we are not type checking, we shouldn't care about these
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// errors, and they don't get returned in `graph.valid()` above.
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graph.valid_types_only()?;
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let maybe_config_specifier = self
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.maybe_config_file
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.as_ref()
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.map(|cf| ModuleSpecifier::from_file_path(&cf.path).unwrap());
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let options = emit::CheckOptions {
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debug: self.flags.log_level == Some(log::Level::Debug),
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emit_with_diagnostics: true,
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maybe_config_specifier,
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ts_config,
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};
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for root in &graph.roots {
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let root_str = root.to_string();
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// `$deno$` specifiers are internal specifiers, printing out that
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// they are being checked is confusing to a user, since they don't
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// actually exist, so we will simply indicate that a generated module
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// is being checked instead of the cryptic internal module
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if !root_str.contains("$deno$") {
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log::info!("{} {}", colors::green("Check"), root);
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} else {
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log::info!("{} a generated module", colors::green("Check"))
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}
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}
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emit::check_and_maybe_emit(graph.clone(), &mut cache, options)?
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};
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log::debug!("{}", emit_result.stats);
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// if the graph is not valid then the diagnostics returned are bogus and
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// should just be ignored so that module loading can proceed to allow the
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// "real" error to be surfaced
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if !emit_result.diagnostics.is_empty() && maybe_graph_error.is_none() {
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return Err(anyhow!(emit_result.diagnostics));
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}
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}
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// we iterate over the graph, looking for any modules that were emitted, or
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// should be loaded as their un-emitted source and add them to the in memory
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// cache of modules for loading by deno_core.
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{
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let mut modules = self.modules.lock();
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modules.extend(emit::to_module_sources(graph.as_ref(), &cache));
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}
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// since we can't store the graph in proc state, because proc state needs to
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// be thread safe because of the need to provide source map resolution and
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// the graph needs to not be thread safe (due to wasmbind_gen constraints),
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// we have no choice but to extract out other meta data from the graph to
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// provide the correct loading behaviors for CLI
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{
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let mut resolution_map = self.resolution_map.lock();
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resolution_map.extend(graph.resolution_map());
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}
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{
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let mut self_maybe_graph_error = self.maybe_graph_error.lock();
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*self_maybe_graph_error = maybe_graph_error;
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}
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// any updates to the lockfile should be updated now
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if let Some(ref lockfile) = self.lockfile {
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let g = lockfile.lock();
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g.write()?;
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}
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Ok(())
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}
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pub(crate) fn resolve(
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&self,
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specifier: &str,
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referrer: &str,
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) -> Result<ModuleSpecifier, AnyError> {
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let resolution_map = self.resolution_map.lock();
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if let Some((_, Some(map))) = deno_core::resolve_url_or_path(referrer)
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.ok()
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.map(|s| (s.clone(), resolution_map.get(&s)))
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{
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if let Some(resolved) = map.get(specifier) {
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match resolved {
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Some(Ok((specifier, span))) => {
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let mut resolved_map = self.resolved_map.lock();
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resolved_map.insert(specifier.clone(), span.clone());
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return Ok(specifier.clone());
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}
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Some(Err(err)) => {
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return Err(custom_error(
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"TypeError",
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format!("{}\n", err.to_string_with_span()),
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))
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}
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_ => (),
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}
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}
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}
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// FIXME(bartlomieju): hacky way to provide compatibility with repl
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let referrer = if referrer.is_empty() && self.flags.repl {
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deno_core::DUMMY_SPECIFIER
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} else {
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referrer
|
|
};
|
|
if let Some(import_map) = &self.maybe_import_map {
|
|
import_map
|
|
.resolve(specifier, referrer)
|
|
.map_err(|err| err.into())
|
|
} else {
|
|
deno_core::resolve_import(specifier, referrer).map_err(|err| err.into())
|
|
}
|
|
}
|
|
|
|
pub fn load(
|
|
&self,
|
|
specifier: ModuleSpecifier,
|
|
maybe_referrer: Option<ModuleSpecifier>,
|
|
is_dynamic: bool,
|
|
) -> Result<ModuleSource, AnyError> {
|
|
log::debug!(
|
|
"specifier: {} maybe_referrer: {} is_dynamic: {}",
|
|
specifier,
|
|
maybe_referrer
|
|
.as_ref()
|
|
.map(|s| s.to_string())
|
|
.unwrap_or_else(|| "<none>".to_string()),
|
|
is_dynamic
|
|
);
|
|
let modules = self.modules.lock();
|
|
modules
|
|
.get(&specifier)
|
|
.map(|r| match r {
|
|
Ok(module_source) => Ok(module_source.clone()),
|
|
Err(err) => {
|
|
// this is the "pending" error we will return
|
|
let err = if let Some(error_class) = get_custom_error_class(err) {
|
|
if error_class == "NotFound" && maybe_referrer.is_some() && !is_dynamic {
|
|
let resolved_map = self.resolved_map.lock();
|
|
// in situations where we were to try to load a module that wasn't
|
|
// emitted and we can't run the original source code (it isn't)
|
|
// JavaScript, we will load a blank module instead. This is
|
|
// usually caused by people exporting type only exports and not
|
|
// type checking.
|
|
if let Some(span) = resolved_map.get(&specifier) {
|
|
log::warn!("{}: Cannot load module \"{}\".\n at {}\n If the source module contains only types, use `import type` and `export type` to import it instead.", colors::yellow("warning"), specifier, span);
|
|
return Ok(ModuleSource {
|
|
code: "".to_string(),
|
|
module_url_found: specifier.to_string(),
|
|
module_url_specified: specifier.to_string(),
|
|
});
|
|
}
|
|
}
|
|
custom_error(error_class, err.to_string())
|
|
} else {
|
|
anyhow!(err.to_string())
|
|
};
|
|
// if there is a pending graph error though we haven't returned, we
|
|
// will return that one
|
|
let mut maybe_graph_error = self.maybe_graph_error.lock();
|
|
if let Some(graph_error) = maybe_graph_error.take() {
|
|
log::debug!("returning cached graph error");
|
|
let resolved_map = self.resolved_map.lock();
|
|
if let Some(span) = resolved_map.get(&specifier) {
|
|
if !span.specifier.as_str().contains("$deno") {
|
|
return Err(custom_error(get_module_graph_error_class(&graph_error), format!("{}\n at {}", graph_error, span)));
|
|
}
|
|
}
|
|
Err(graph_error.into())
|
|
} else {
|
|
Err(err)
|
|
}
|
|
}
|
|
})
|
|
.unwrap_or_else(|| {
|
|
if maybe_referrer.is_some() && !is_dynamic {
|
|
let resolved_map = self.resolved_map.lock();
|
|
if let Some(span) = resolved_map.get(&specifier) {
|
|
return Err(custom_error("NotFound", format!("Cannot load module \"{}\".\n at {}", specifier, span)));
|
|
}
|
|
}
|
|
Err(custom_error("NotFound", format!("Cannot load module \"{}\".", specifier)))
|
|
})
|
|
}
|
|
|
|
// TODO(@kitsonk) this should be refactored to get it from the module graph
|
|
fn get_emit(&self, url: &Url) -> Option<(Vec<u8>, Option<Vec<u8>>)> {
|
|
match url.scheme() {
|
|
// we should only be looking for emits for schemes that denote external
|
|
// modules, which the disk_cache supports
|
|
"wasm" | "file" | "http" | "https" | "data" | "blob" => (),
|
|
_ => {
|
|
return None;
|
|
}
|
|
}
|
|
let emit_path = self
|
|
.dir
|
|
.gen_cache
|
|
.get_cache_filename_with_extension(url, "js")?;
|
|
let emit_map_path = self
|
|
.dir
|
|
.gen_cache
|
|
.get_cache_filename_with_extension(url, "js.map")?;
|
|
if let Ok(code) = self.dir.gen_cache.get(&emit_path) {
|
|
let maybe_map = if let Ok(map) = self.dir.gen_cache.get(&emit_map_path) {
|
|
Some(map)
|
|
} else {
|
|
None
|
|
};
|
|
Some((code, maybe_map))
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
// TODO(@kitsonk) this is only temporary, but should be refactored to somewhere
|
|
// else, like a refactored file_fetcher.
|
|
impl SourceMapGetter for ProcState {
|
|
fn get_source_map(&self, file_name: &str) -> Option<Vec<u8>> {
|
|
if let Ok(specifier) = resolve_url(file_name) {
|
|
if let Some((code, maybe_map)) = self.get_emit(&specifier) {
|
|
let code = String::from_utf8(code).unwrap();
|
|
source_map_from_code(code).or(maybe_map)
|
|
} else if let Ok(source) = self.load(specifier, None, false) {
|
|
source_map_from_code(source.code)
|
|
} else {
|
|
None
|
|
}
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
|
|
fn get_source_line(
|
|
&self,
|
|
file_name: &str,
|
|
line_number: usize,
|
|
) -> Option<String> {
|
|
if let Ok(specifier) = resolve_url(file_name) {
|
|
self.file_fetcher.get_source(&specifier).map(|out| {
|
|
// Do NOT use .lines(): it skips the terminating empty line.
|
|
// (due to internally using .split_terminator() instead of .split())
|
|
let lines: Vec<&str> = out.source.split('\n').collect();
|
|
assert!(lines.len() > line_number);
|
|
lines[line_number].to_string()
|
|
})
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
fn source_map_from_code(code: String) -> Option<Vec<u8>> {
|
|
let lines: Vec<&str> = code.split('\n').collect();
|
|
if let Some(last_line) = lines.last() {
|
|
if last_line
|
|
.starts_with("//# sourceMappingURL=data:application/json;base64,")
|
|
{
|
|
let input = last_line.trim_start_matches(
|
|
"//# sourceMappingURL=data:application/json;base64,",
|
|
);
|
|
let decoded_map = base64::decode(input)
|
|
.expect("Unable to decode source map from emitted file.");
|
|
Some(decoded_map)
|
|
} else {
|
|
None
|
|
}
|
|
} else {
|
|
None
|
|
}
|
|
}
|