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Fix symlink path comparison in schema validation

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This commit is contained in:
Devon Boyer 2025-12-04 22:39:23 -05:00
commit b34fae93f0
2 changed files with 4 additions and 2 deletions
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3
lib/mcp/tool/input_schema.rb
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@ -46,9 +46,10 @@ module MCP
def validate_schema!
check_for_refs!
schema = to_h
gem_path = File.realpath(Gem.loaded_specs["json-schema"].full_gem_path)
schema_reader = JSON::Schema::Reader.new(
accept_uri: false,
accept_file: ->(path) { path.to_s.start_with?(Gem.loaded_specs["json-schema"].full_gem_path) },
accept_file: ->(path) { File.realpath(path.to_s).start_with?(gem_path) },
)
metaschema_path = Pathname.new(JSON::Validator.validator_for_name("draft4").metaschema)
# Converts metaschema to a file URI for cross-platform compatibility

3
lib/mcp/tool/output_schema.rb
View file

@ -51,9 +51,10 @@ module MCP
def validate_schema!
schema = to_h
gem_path = File.realpath(Gem.loaded_specs["json-schema"].full_gem_path)
schema_reader = JSON::Schema::Reader.new(
accept_uri: false,
accept_file: ->(path) { path.to_s.start_with?(Gem.loaded_specs["json-schema"].full_gem_path) },
accept_file: ->(path) { File.realpath(path.to_s).start_with?(gem_path) },
)
metaschema_path = Pathname.new(JSON::Validator.validator_for_name("draft4").metaschema)
# Converts metaschema to a file URI for cross-platform compatibility