mirror of https://github.com/zulip/zulip.git
279 lines
10 KiB
Python
279 lines
10 KiB
Python
import re
|
|
import json
|
|
import inspect
|
|
|
|
from markdown.extensions import Extension
|
|
from markdown.preprocessors import Preprocessor
|
|
from typing import Any, Dict, Optional, List, Tuple
|
|
import markdown
|
|
|
|
import zerver.openapi.python_examples
|
|
from zerver.lib.openapi import get_openapi_fixture, openapi_spec, \
|
|
get_openapi_parameters
|
|
|
|
MACRO_REGEXP = re.compile(r'\{generate_code_example(\(\s*(.+?)\s*\))*\|\s*(.+?)\s*\|\s*(.+?)\s*(\(\s*(.+)\s*\))?\}')
|
|
CODE_EXAMPLE_REGEX = re.compile(r'\# \{code_example\|\s*(.+?)\s*\}')
|
|
|
|
PYTHON_CLIENT_CONFIG = """
|
|
#!/usr/bin/env python3
|
|
|
|
import zulip
|
|
|
|
# Pass the path to your zuliprc file here.
|
|
client = zulip.Client(config_file="~/zuliprc")
|
|
|
|
"""
|
|
|
|
PYTHON_CLIENT_ADMIN_CONFIG = """
|
|
#!/usr/bin/env python
|
|
|
|
import zulip
|
|
|
|
# The user for this zuliprc file must be an organization administrator
|
|
client = zulip.Client(config_file="~/zuliprc-admin")
|
|
|
|
"""
|
|
|
|
DEFAULT_AUTH_EMAIL = "BOT_EMAIL_ADDRESS"
|
|
DEFAULT_AUTH_API_KEY = "BOT_API_KEY"
|
|
DEFAULT_EXAMPLE = {
|
|
"integer": 1,
|
|
"string": "demo",
|
|
"boolean": False,
|
|
}
|
|
|
|
def parse_language_and_options(input_str: Optional[str]) -> Tuple[str, Dict[str, Any]]:
|
|
if not input_str:
|
|
return ("", {})
|
|
language_and_options = re.match(r"(?P<language>\w+)(,\s*(?P<options>[\"\'\w\d\[\],= ]+))?", input_str)
|
|
assert(language_and_options is not None)
|
|
kwargs_pattern = re.compile(r"(?P<key>\w+)\s*=\s*(?P<value>[\'\"\w\d]+|\[[\'\",\w\d ]+\])")
|
|
language = language_and_options.group("language")
|
|
assert(language is not None)
|
|
if language_and_options.group("options"):
|
|
_options = kwargs_pattern.finditer(language_and_options.group("options"))
|
|
options = {}
|
|
for m in _options:
|
|
options[m.group("key")] = json.loads(m.group("value").replace("'", '"'))
|
|
return (language, options)
|
|
return (language, {})
|
|
|
|
def extract_python_code_example(source: List[str], snippet: List[str]) -> List[str]:
|
|
start = -1
|
|
end = -1
|
|
for line in source:
|
|
match = CODE_EXAMPLE_REGEX.search(line)
|
|
if match:
|
|
if match.group(1) == 'start':
|
|
start = source.index(line)
|
|
elif match.group(1) == 'end':
|
|
end = source.index(line)
|
|
break
|
|
|
|
if (start == -1 and end == -1):
|
|
return snippet
|
|
|
|
snippet.extend(source[start + 1: end])
|
|
snippet.append(' print(result)')
|
|
snippet.append('\n')
|
|
source = source[end + 1:]
|
|
return extract_python_code_example(source, snippet)
|
|
|
|
def render_python_code_example(function: str, admin_config: Optional[bool]=False,
|
|
**kwargs: Any) -> List[str]:
|
|
method = zerver.openapi.python_examples.TEST_FUNCTIONS[function]
|
|
function_source_lines = inspect.getsourcelines(method)[0]
|
|
|
|
if admin_config:
|
|
config = PYTHON_CLIENT_ADMIN_CONFIG.splitlines()
|
|
else:
|
|
config = PYTHON_CLIENT_CONFIG.splitlines()
|
|
|
|
snippet = extract_python_code_example(function_source_lines, [])
|
|
|
|
code_example = []
|
|
code_example.append('```python')
|
|
code_example.extend(config)
|
|
|
|
for line in snippet:
|
|
# Remove one level of indentation and strip newlines
|
|
code_example.append(line[4:].rstrip())
|
|
|
|
code_example.append('```')
|
|
|
|
return code_example
|
|
|
|
def curl_method_arguments(endpoint: str, method: str,
|
|
api_url: str) -> List[str]:
|
|
# We also include the -sS verbosity arguments here.
|
|
method = method.upper()
|
|
url = "{}/v1{}".format(api_url, endpoint)
|
|
valid_methods = ["GET", "POST", "DELETE", "PUT", "PATCH", "OPTIONS"]
|
|
if method == "GET":
|
|
# Then we need to make sure that each -d option translates to becoming
|
|
# a GET parameter (in the URL) and not a POST parameter (in the body).
|
|
# TODO: remove the -X part by updating the linting rule. It's redundant.
|
|
return ["-sSX", "GET", "-G", url]
|
|
elif method in valid_methods:
|
|
return ["-sSX", method, url]
|
|
else:
|
|
msg = "The request method {} is not one of {}".format(method,
|
|
valid_methods)
|
|
raise ValueError(msg)
|
|
|
|
def generate_curl_example(endpoint: str, method: str,
|
|
api_url: str,
|
|
auth_email: str=DEFAULT_AUTH_EMAIL,
|
|
auth_api_key: str=DEFAULT_AUTH_API_KEY,
|
|
exclude: List[str]=[]) -> List[str]:
|
|
lines = ["```curl"]
|
|
openapi_entry = openapi_spec.spec()['paths'][endpoint][method.lower()]
|
|
|
|
curl_first_line_parts = ["curl"] + curl_method_arguments(endpoint, method,
|
|
api_url)
|
|
lines.append(" ".join(curl_first_line_parts))
|
|
|
|
authentication_required = openapi_entry.get("security", False)
|
|
if authentication_required:
|
|
lines.append(" -u %s:%s" % (auth_email, auth_api_key))
|
|
|
|
openapi_example_params = get_openapi_parameters(endpoint, method)
|
|
for param in openapi_example_params:
|
|
param_name = param["name"]
|
|
if param_name in exclude:
|
|
continue
|
|
param_type = param["schema"]["type"]
|
|
if param_type in ["object", "array"]:
|
|
example_value = param.get("example", None)
|
|
if not example_value:
|
|
msg = """All array and object type request parameters must have
|
|
concrete examples. The openAPI documentation for {}/{} is missing an example
|
|
value for the {} parameter. Without this we cannot automatically generate a
|
|
cURL example.""".format(endpoint, method, param_name)
|
|
raise ValueError(msg)
|
|
ordered_ex_val_str = json.dumps(example_value, sort_keys=True)
|
|
line = " --data-urlencode {}='{}'".format(param_name, ordered_ex_val_str)
|
|
else:
|
|
example_value = param.get("example", DEFAULT_EXAMPLE[param_type])
|
|
if type(example_value) == bool:
|
|
example_value = str(example_value).lower()
|
|
line = " -d '{}={}'".format(param_name, example_value)
|
|
lines.append(line)
|
|
|
|
for i in range(1, len(lines)-1):
|
|
lines[i] = lines[i] + " \\"
|
|
|
|
lines.append("```")
|
|
|
|
return lines
|
|
|
|
def render_curl_example(function: str, api_url: str,
|
|
exclude: List[str]=[]) -> List[str]:
|
|
""" A simple wrapper around generate_curl_example. """
|
|
parts = function.split(":")
|
|
endpoint = parts[0]
|
|
method = parts[1]
|
|
kwargs = dict() # type: Dict[str, Any]
|
|
if len(parts) > 2:
|
|
kwargs["auth_email"] = parts[2]
|
|
if len(parts) > 3:
|
|
kwargs["auth_api_key"] = parts[3]
|
|
kwargs["api_url"] = api_url
|
|
kwargs["exclude"] = exclude
|
|
return generate_curl_example(endpoint, method, **kwargs)
|
|
|
|
SUPPORTED_LANGUAGES = {
|
|
'python': {
|
|
'client_config': PYTHON_CLIENT_CONFIG,
|
|
'admin_config': PYTHON_CLIENT_ADMIN_CONFIG,
|
|
'render': render_python_code_example,
|
|
},
|
|
'curl': {
|
|
'render': render_curl_example
|
|
}
|
|
} # type: Dict[str, Any]
|
|
|
|
class APICodeExamplesGenerator(Extension):
|
|
def __init__(self, api_url: Optional[str]) -> None:
|
|
self.config = {
|
|
'api_url': [
|
|
api_url,
|
|
'API URL to use when rendering curl examples'
|
|
]
|
|
}
|
|
|
|
def extendMarkdown(self, md: markdown.Markdown, md_globals: Dict[str, Any]) -> None:
|
|
md.preprocessors.add(
|
|
'generate_code_example', APICodeExamplesPreprocessor(md, self.getConfigs()), '_begin'
|
|
)
|
|
|
|
class APICodeExamplesPreprocessor(Preprocessor):
|
|
def __init__(self, md: markdown.Markdown, config: Dict[str, Any]) -> None:
|
|
super(APICodeExamplesPreprocessor, self).__init__(md)
|
|
self.api_url = config['api_url']
|
|
|
|
def run(self, lines: List[str]) -> List[str]:
|
|
done = False
|
|
while not done:
|
|
for line in lines:
|
|
loc = lines.index(line)
|
|
match = MACRO_REGEXP.search(line)
|
|
|
|
if match:
|
|
language, options = parse_language_and_options(match.group(2))
|
|
function = match.group(3)
|
|
key = match.group(4)
|
|
argument = match.group(6)
|
|
if self.api_url is None:
|
|
raise AssertionError("Cannot render curl API examples without API URL set.")
|
|
options['api_url'] = self.api_url
|
|
|
|
if key == 'fixture':
|
|
if argument:
|
|
text = self.render_fixture(function, name=argument)
|
|
else:
|
|
text = self.render_fixture(function)
|
|
elif key == 'example':
|
|
if argument == 'admin_config=True':
|
|
text = SUPPORTED_LANGUAGES[language]['render'](function, admin_config=True)
|
|
else:
|
|
text = SUPPORTED_LANGUAGES[language]['render'](function, **options)
|
|
|
|
# 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 = MACRO_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_fixture(self, function: str, name: Optional[str]=None) -> List[str]:
|
|
fixture = []
|
|
|
|
# We assume that if the function we're rendering starts with a slash
|
|
# it's a path in the endpoint and therefore it uses the new OpenAPI
|
|
# format.
|
|
if function.startswith('/'):
|
|
path, method = function.rsplit(':', 1)
|
|
fixture_dict = get_openapi_fixture(path, method, name)
|
|
else:
|
|
fixture_dict = zerver.openapi.python_examples.FIXTURES[function]
|
|
|
|
fixture_json = json.dumps(fixture_dict, indent=4, sort_keys=True,
|
|
separators=(',', ': '))
|
|
|
|
fixture.append('```')
|
|
fixture.extend(fixture_json.splitlines())
|
|
fixture.append('```')
|
|
|
|
return fixture
|
|
|
|
def makeExtension(*args: Any, **kwargs: str) -> APICodeExamplesGenerator:
|
|
return APICodeExamplesGenerator(*args, **kwargs)
|