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, 8 insertions, 0 deletions

diff --git a/runtime/permissions.rs b/runtime/permissions.rs
index a28ba35b1..9b2737b4f 100644
--- a/runtime/permissions.rs
+++ b/runtime/permissions.rs
@@ -12,6 +12,7 @@ use deno_permissions::AllowRunDescriptorParseResult;
 use deno_permissions::DenyRunDescriptor;
 use deno_permissions::EnvDescriptor;
 use deno_permissions::FfiDescriptor;
+use deno_permissions::ImportDescriptor;
 use deno_permissions::NetDescriptor;
 use deno_permissions::PathQueryDescriptor;
 use deno_permissions::ReadDescriptor;
@@ -75,6 +76,13 @@ impl deno_permissions::PermissionDescriptorParser
     NetDescriptor::parse(text)
   }
 
+  fn parse_import_descriptor(
+    &self,
+    text: &str,
+  ) -> Result<ImportDescriptor, AnyError> {
+    ImportDescriptor::parse(text)
+  }
+
   fn parse_env_descriptor(
     &self,
     text: &str,