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>

6 files changed, 6 insertions, 7 deletions

diff --git a/tests/testdata/dynamic_import/permissions_blob_local.ts b/tests/testdata/dynamic_import/permissions_blob_local.ts
index 9ef4158ce..865c1777a 100644
--- a/tests/testdata/dynamic_import/permissions_blob_local.ts
+++ b/tests/testdata/dynamic_import/permissions_blob_local.ts
@@ -1,4 +1,4 @@
-// This file doesn't really exist, but it doesn't matter, a "PermissionsDenied" error should be thrown.
+// This file doesn't really exist, but it doesn't matter, a "NotCapable" error should be thrown.
 const code = `import "file:///${
   Deno.build.os == "windows" ? "C:/" : ""
 }local_file.ts";`;
diff --git a/tests/testdata/dynamic_import/permissions_blob_remote.ts b/tests/testdata/dynamic_import/permissions_blob_remote.ts
index 1e2c8c21a..569b1f84c 100644
--- a/tests/testdata/dynamic_import/permissions_blob_remote.ts
+++ b/tests/testdata/dynamic_import/permissions_blob_remote.ts
@@ -1,4 +1,3 @@
-// This file doesn't really exist, but it doesn't matter, a "PermissionsDenied" error should be thrown.
 const code = `import "https://example.com/some/file.ts";`;
 const blob = new Blob([code]);
 await import(URL.createObjectURL(blob));
diff --git a/tests/testdata/dynamic_import/permissions_blob_remote.ts.out b/tests/testdata/dynamic_import/permissions_blob_remote.ts.out
index f436a5eb8..20b6839e4 100644
--- a/tests/testdata/dynamic_import/permissions_blob_remote.ts.out
+++ b/tests/testdata/dynamic_import/permissions_blob_remote.ts.out
@@ -1,5 +1,5 @@
-error: Uncaught (in promise) TypeError: Requires net access to "example.com:443", run again with the --allow-net flag
+error: Uncaught (in promise) TypeError: Requires import access to "example.com:443", run again with the --allow-import flag
     at blob:null/[WILDCARD]:1:8
 await import(URL.createObjectURL(blob));
 ^
-    at async file:///[WILDCARD]/dynamic_import/permissions_blob_remote.ts:4:1
+    at async file:///[WILDCARD]/dynamic_import/permissions_blob_remote.ts:3:1
diff --git a/tests/testdata/dynamic_import/permissions_data_local.ts b/tests/testdata/dynamic_import/permissions_data_local.ts
index be4fc1c34..01bff7d7a 100644
--- a/tests/testdata/dynamic_import/permissions_data_local.ts
+++ b/tests/testdata/dynamic_import/permissions_data_local.ts
@@ -1,4 +1,4 @@
-// This file doesn't really exist, but it doesn't matter, a "PermissionsDenied" error should be thrown.
+// This file doesn't really exist, but it doesn't matter, a "NotCapable" error should be thrown.
 const code = `import "file:///${
   Deno.build.os == "windows" ? "C:/" : ""
 }local_file.ts";`;
diff --git a/tests/testdata/dynamic_import/permissions_data_remote.ts.out b/tests/testdata/dynamic_import/permissions_data_remote.ts.out
index 00248e277..67c851205 100644
--- a/tests/testdata/dynamic_import/permissions_data_remote.ts.out
+++ b/tests/testdata/dynamic_import/permissions_data_remote.ts.out
@@ -1,4 +1,4 @@
-error: Uncaught (in promise) TypeError: Requires net access to "example.com:443", run again with the --allow-net flag
+error: Uncaught (in promise) TypeError: Requires import access to "example.com:443", run again with the --allow-import flag
     at data:application/javascript;base64,aW1wb3J0ICJodHRwczovL2V4YW1wbGUuY29tL3NvbWUvZmlsZS50cyI7:1:8
 await import(`data:application/javascript;base64,${btoa(code)}`);
 ^
diff --git a/tests/testdata/dynamic_import/permissions_remote_remote.ts.out b/tests/testdata/dynamic_import/permissions_remote_remote.ts.out
index 0e8b0fc1f..2676d7551 100644
--- a/tests/testdata/dynamic_import/permissions_remote_remote.ts.out
+++ b/tests/testdata/dynamic_import/permissions_remote_remote.ts.out
@@ -1,4 +1,4 @@
-error: Uncaught (in promise) TypeError: Requires net access to "example.com:443", run again with the --allow-net flag
+error: Uncaught (in promise) TypeError: Requires import access to "example.com:443", run again with the --allow-import flag
     at http://localhost:4545/dynamic_import/static_remote.ts:2:8
 await import(
 ^