{argument} object details:
{value}: {data_type} {description}{object_details}
{additional_information}
""".strip() OBJECT_CODE_TEMPLATE = "{value}".strip()
class MarkdownArgumentsTableGenerator(Extension):
def __init__(self, configs: Mapping[str, Any] = {}) -> None:
self.config = {
"base_path": [
".",
"Default location from which to evaluate relative paths for the JSON files.",
],
}
for key, value in configs.items():
self.setConfig(key, value)
def extendMarkdown(self, md: markdown.Markdown) -> None:
md.preprocessors.register(
APIArgumentsTablePreprocessor(md, self.getConfigs()),
"generate_api_arguments",
PREPROCESSOR_PRIORITES["generate_api_arguments"],
)
class APIArgumentsTablePreprocessor(Preprocessor):
def __init__(self, md: markdown.Markdown, config: Mapping[str, Any]) -> None:
super().__init__(md)
self.base_path = config["base_path"]
def run(self, lines: List[str]) -> List[str]:
done = False
while not done:
for line in lines:
loc = lines.index(line)
match = REGEXP.search(line)
if not match:
continue
filename = match.group(1)
doc_name = match.group(2)
filename = os.path.expanduser(filename)
is_openapi_format = filename.endswith(".yaml")
if not os.path.isabs(filename):
parent_dir = self.base_path
filename = os.path.normpath(os.path.join(parent_dir, filename))
if is_openapi_format:
endpoint, method = doc_name.rsplit(":", 1)
arguments: List[Dict[str, Any]] = []
try:
arguments = get_openapi_parameters(endpoint, method)
except KeyError as e:
# Don't raise an exception if the "parameters"
# field is missing; we assume that's because the
# endpoint doesn't accept any parameters
if e.args != ("parameters",):
raise e
else:
with open(filename) as fp:
json_obj = json.load(fp)
arguments = json_obj[doc_name]
if arguments:
text = self.render_parameters(arguments)
# We want to show this message only if the parameters
# description doesn't say anything else.
elif is_openapi_format and get_parameters_description(endpoint, method) == "":
text = ["This endpoint does not accept any parameters."]
else:
text = []
# The line that contains the directive to include the macro
# may be preceded or followed by text or tags, in that case
# we need to make sure that any preceding or following text
# stays the same.
line_split = REGEXP.split(line, maxsplit=0)
preceding = line_split[0]
following = line_split[-1]
text = [preceding, *text, following]
lines = lines[:loc] + text + lines[loc + 1 :]
break
else:
done = True
return lines
def render_parameters(self, arguments: Sequence[Mapping[str, Any]]) -> List[str]:
parameters = []
md_engine = markdown.Markdown(extensions=[])
arguments = sorted(arguments, key=lambda argument: "deprecated" in argument)
for argument in arguments:
name = argument.get("argument") or argument.get("name")
description = argument["description"]
oneof = ["`" + str(item) + "`" for item in argument.get("schema", {}).get("enum", [])]
if oneof:
description += "\nMust be one of: {}.".format(", ".join(oneof))
default = argument.get("schema", {}).get("default")
if default is not None:
description += f"\nDefaults to `{json.dumps(default)}`."
data_type = ""
if "schema" in argument:
data_type = generate_data_type(argument["schema"])
else:
data_type = generate_data_type(argument["content"]["application/json"]["schema"])
# TODO: OpenAPI allows indicating where the argument goes
# (path, querystring, form data...). We should document this detail.
example = ""
if "example" in argument:
# We use this style without explicit JSON encoding for
# integers, strings, and booleans.
# * For booleans, JSON encoding correctly corrects for Python's
# str(True)="True" not matching the encoding of "true".
# * For strings, doing so nicely results in strings being quoted
# in the documentation, improving readability.
# * For integers, it is a noop, since json.dumps(3) == str(3) == "3".
example = json.dumps(argument["example"])
else:
example = json.dumps(argument["content"]["application/json"]["example"])
required_string: str = "required"
if argument.get("in", "") == "path":
# Any path variable is required
assert argument["required"]
required_string = "required in path"
if argument.get("required", False):
required_block = f'{required_string}'
else:
required_block = 'optional'
check_deprecated_consistency(argument, description)
if argument.get("deprecated", False):
deprecated_block = 'Deprecated'
else:
deprecated_block = ""
object_block = ""
# TODO: There are some endpoint parameters with object properties
# that are not defined in `zerver/openapi/zulip.yaml`
if "object" in data_type:
if "schema" in argument:
object_schema = argument["schema"]
else:
object_schema = argument["content"]["application/json"]["schema"]
if "items" in object_schema and "properties" in object_schema["items"]:
object_block = self.render_object_details(object_schema["items"], str(name))
elif "properties" in object_schema:
object_block = self.render_object_details(object_schema, str(name))
parameters.append(
API_PARAMETER_TEMPLATE.format(
argument=name,
example=escape_html(example),
required=required_block,
deprecated=deprecated_block,
description=md_engine.convert(description),
type=(data_type),
object_details=object_block,
)
)
return parameters
def render_object_details(self, schema: Mapping[str, Any], name: str) -> str:
md_engine = markdown.Markdown(extensions=[])
li_elements = []
object_values = schema.get("properties", {})
for value in object_values:
description = ""
if "description" in object_values[value]:
description = object_values[value]["description"]
# check for default, enum, required or example in documentation
additions: List[str] = []
default = object_values.get(value, {}).get("default")
if default is not None:
formatted_default = OBJECT_CODE_TEMPLATE.format(value=json.dumps(default))
additions += f"Defaults to {formatted_default}. "
enums = object_values.get(value, {}).get("enum")
if enums is not None:
formatted_enums = [
OBJECT_CODE_TEMPLATE.format(value=json.dumps(enum)) for enum in enums
]
additions += "Must be one of: {}. ".format(", ".join(formatted_enums))
if "required" in schema:
if value in schema["required"]:
additions += "Required value. "
else:
additions += "Optional value. "
if "example" in object_values[value]:
example = json.dumps(object_values[value]["example"])
formatted_example = OBJECT_CODE_TEMPLATE.format(value=escape_html(example))
additions += f"Example: {formatted_example}"
if len(additions) > 0:
additional_information = "".join(additions).strip()
description_final = OBJECT_DESCRIPTION_TEMPLATE.format(
description=md_engine.convert(description),
additional_information=additional_information,
)
else:
description_final = md_engine.convert(description)
data_type = generate_data_type(object_values[value])
details = ""
if "object" in data_type and "properties" in object_values[value]:
details += self.render_object_details(object_values[value], str(value))
li = OBJECT_LIST_ITEM_TEMPLATE.format(
value=value,
data_type=data_type,
description=description_final,
object_details=details,
)
li_elements.append(li)
object_details = OBJECT_DETAILS_TEMPLATE.format(
argument=name,
values="\n".join(li_elements),
)
return object_details
def makeExtension(*args: Any, **kwargs: str) -> MarkdownArgumentsTableGenerator:
return MarkdownArgumentsTableGenerator(kwargs)
def generate_data_type(schema: Mapping[str, Any]) -> str:
data_type = ""
if "oneOf" in schema:
for item in schema["oneOf"]:
data_type = data_type + generate_data_type(item) + " | "
data_type = data_type[:-3]
elif "items" in schema:
data_type = "(" + generate_data_type(schema["items"]) + ")[]"
else:
data_type = schema["type"]
if "nullable" in schema and schema["nullable"]:
data_type = data_type + " | null"
return data_type