feat: add `--allow-import` flag (#25469)

This replaces `--allow-net` for import permissions and makes the
security sandbox stricter by also checking permissions for statically
analyzable imports.

By default, this has a value of
`--allow-import=deno.land:443,jsr.io:443,esm.sh:443,raw.githubusercontent.com:443,gist.githubusercontent.com:443`,
but that can be overridden by providing a different set of hosts.

Additionally, when no value is provided, import permissions are inferred
from the CLI arguments so the following works because
`fresh.deno.dev:443` will be added to the list of allowed imports:

```ts
deno run -A -r https://fresh.deno.dev
```

---------

Co-authored-by: David Sherret <dsherret@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/cli/lsp/language_server.rs b/cli/lsp/language_server.rs
index 85daa4e28..aed4b47ef 100644
--- a/cli/lsp/language_server.rs
+++ b/cli/lsp/language_server.rs
@@ -3614,6 +3614,11 @@ impl Inner {
         }),
         // bit of a hack to force the lsp to cache the @types/node package
         type_check_mode: crate::args::TypeCheckMode::Local,
+        permissions: crate::args::PermissionFlags {
+          // allow remote import permissions in the lsp for now
+          allow_import: Some(vec![]),
+          ..Default::default()
+        },
         ..Default::default()
       }),
       initial_cwd,