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697 lines
29 KiB
Python
697 lines
29 KiB
Python
"""
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Contains all the units for the spec.
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This file loads swagger and JSON schema files and parses out the useful bits
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and returns them as Units for use in Batesian.
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For the actual conversion of data -> RST (including templates), see the sections
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file instead.
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"""
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from batesian.units import Units
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import inspect
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import json
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import os
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import re
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import subprocess
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import urllib
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import yaml
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V1_CLIENT_API = "../api/client-server/v1"
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V1_EVENT_EXAMPLES = "../event-schemas/examples/v1"
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V1_EVENT_SCHEMA = "../event-schemas/schema/v1"
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V2_CLIENT_API = "../api/client-server/v2_alpha"
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CORE_EVENT_SCHEMA = "../event-schemas/schema/v1/core-event-schema"
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CHANGELOG = "../CHANGELOG.rst"
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TARGETS = "../specification/targets.yaml"
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ROOM_EVENT = "core-event-schema/room_event.json"
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STATE_EVENT = "core-event-schema/state_event.json"
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def get_json_schema_object_fields(obj, enforce_title=False):
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# Algorithm:
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# f.e. property => add field info (if field is object then recurse)
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if obj.get("type") != "object":
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raise Exception(
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"get_json_schema_object_fields: Object %s isn't an object." % obj
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)
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if enforce_title and not obj.get("title"):
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raise Exception(
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"get_json_schema_object_fields: Nested object %s doesn't have a title." % obj
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)
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required_keys = obj.get("required")
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if not required_keys:
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required_keys = []
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fields = {
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"title": obj.get("title"),
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"rows": []
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}
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tables = [fields]
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parents = obj.get("allOf")
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props = obj.get("properties")
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if not props:
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props = obj.get("patternProperties")
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if props:
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# try to replace horrible regex key names with pretty x-pattern ones
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for key_name in props.keys():
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pretty_key = props[key_name].get("x-pattern")
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if pretty_key:
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props[pretty_key] = props[key_name]
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del props[key_name]
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if not props and not parents:
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# Sometimes you just want to specify that a thing is an object without
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# doing all the keys. Allow people to do that if they set a 'title'.
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if obj.get("title"):
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parents = [{
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"$ref": obj.get("title")
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}]
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if not props and not parents:
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raise Exception(
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"Object %s has no properties or parents." % obj
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)
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if not props: # parents only
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return [{
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"title": obj["title"],
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"parent": parents[0]["$ref"],
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"no-table": True
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}]
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for key_name in sorted(props):
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value_type = None
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required = key_name in required_keys
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desc = props[key_name].get("description", "")
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if props[key_name]["type"] == "object":
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if props[key_name].get("additionalProperties"):
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# not "really" an object, just a KV store
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prop_val = props[key_name]["additionalProperties"]["type"]
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if prop_val == "object":
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nested_object = get_json_schema_object_fields(
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props[key_name]["additionalProperties"],
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enforce_title=True
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)
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key = props[key_name]["additionalProperties"].get(
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"x-pattern", "string"
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)
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value_type = "{%s: %s}" % (key, nested_object[0]["title"])
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if not nested_object[0].get("no-table"):
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tables += nested_object
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else:
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value_type = "{string: %s}" % prop_val
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else:
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nested_object = get_json_schema_object_fields(
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props[key_name],
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enforce_title=True
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)
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value_type = "{%s}" % nested_object[0]["title"]
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if not nested_object[0].get("no-table"):
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tables += nested_object
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elif props[key_name]["type"] == "array":
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# if the items of the array are objects then recurse
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if props[key_name]["items"]["type"] == "object":
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nested_object = get_json_schema_object_fields(
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props[key_name]["items"],
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enforce_title=True
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)
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value_type = "[%s]" % nested_object[0]["title"]
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tables += nested_object
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else:
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value_type = "[%s]" % props[key_name]["items"]["type"]
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array_enums = props[key_name]["items"].get("enum")
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if array_enums:
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if len(array_enums) > 1:
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value_type = "[enum]"
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desc += (
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" One of: %s" % json.dumps(array_enums)
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)
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else:
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desc += (
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" Must be '%s'." % array_enums[0]
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)
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else:
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value_type = props[key_name]["type"]
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if props[key_name].get("enum"):
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if len(props[key_name].get("enum")) > 1:
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value_type = "enum"
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desc += (
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" One of: %s" % json.dumps(props[key_name]["enum"])
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)
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else:
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desc += (
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" Must be '%s'." % props[key_name]["enum"][0]
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)
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if isinstance(value_type, list):
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value_type = " or ".join(value_type)
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fields["rows"].append({
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"key": key_name,
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"type": value_type,
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"required": required,
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"desc": desc,
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"req_str": "**Required.** " if required else ""
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})
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return tables
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class MatrixUnits(Units):
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def _load_swagger_meta(self, api, group_name):
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endpoints = []
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for path in api["paths"]:
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for method in api["paths"][path]:
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single_api = api["paths"][path][method]
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full_path = api.get("basePath", "").rstrip("/") + path
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endpoint = {
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"title": single_api.get("summary", ""),
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"desc": single_api.get("description", single_api.get("summary", "")),
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"method": method.upper(),
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"path": full_path.strip(),
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"requires_auth": "security" in single_api,
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"rate_limited": 429 in single_api.get("responses", {}),
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"req_params": [],
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"res_tables": [],
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"example": {
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"req": "",
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"responses": [],
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"good_response": ""
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}
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}
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self.log(" ------- Endpoint: %s %s ------- " % (method, path))
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for param in single_api.get("parameters", []):
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# description
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desc = param.get("description", "")
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if param.get("required"):
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desc = "**Required.** " + desc
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# assign value expected for this param
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val_type = param.get("type") # integer/string
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if param.get("enum"):
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val_type = "enum"
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desc += (
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" One of: %s" % json.dumps(param.get("enum"))
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)
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refType = Units.prop(param, "schema/$ref/") # Error,Event
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schemaFmt = Units.prop(param, "schema/format") # bytes e.g. uploads
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if not val_type and refType:
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val_type = refType # TODO: Resolve to human-readable.
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if not val_type and schemaFmt:
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val_type = schemaFmt
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# handle top-level strings/bools
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if not val_type and Units.prop(param, "schema/type") == "string":
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val_type = "string"
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if not val_type and Units.prop(param, "schema/type") == "boolean":
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val_type = "boolean"
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if val_type:
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endpoint["req_params"].append({
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"key": param["name"],
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"loc": param["in"],
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"type": val_type,
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"desc": desc
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})
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continue
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# If we're here, either the param has no value or it is an
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# object which we haven't $reffed (so probably just a json
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# object with some keys; we'll add entries f.e one)
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if "schema" not in param:
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raise Exception(
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("API endpoint group=%s path=%s method=%s param=%s"+
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" has no valid parameter value.") % (
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group_name, path, method, param
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)
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)
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if Units.prop(param, "schema/type") != "object":
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raise Exception(
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("API endpoint group=%s path=%s method=%s defines a"+
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" param with a schema which isn't an object. Array?")
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% (group_name, path, method)
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)
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# loop top-level json keys
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json_body = Units.prop(param, "schema/properties")
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required_params = []
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if Units.prop(param, "schema/required"):
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required_params = Units.prop(param, "schema/required")
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for key in json_body:
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req_obj = json_body[key]
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pdesc = req_obj["description"]
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if key in required_params:
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pdesc = "**Required.** " + pdesc
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is_array = req_obj["type"] == "array"
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is_array_of_objects = (
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is_array and req_obj["items"]["type"] == "object"
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)
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endpoint["req_params"].append({
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"key": key,
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"loc": "JSON body",
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"type": (
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req_obj["type"] if not is_array else
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"array[%s]" % req_obj["items"]["type"]
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),
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"desc": pdesc
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})
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if not is_array_of_objects and req_obj["type"] == "array":
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continue
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# Put in request.dot.notation for nested keys
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if req_obj["type"] in ["object", "array"]:
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if is_array_of_objects:
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req_obj = req_obj["items"]
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req_tables = get_json_schema_object_fields(req_obj)
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if req_tables > 1:
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for table in req_tables[1:]:
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nested_key_name = [
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s["key"] for s in req_tables[0]["rows"] if
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s["type"] == ("{%s}" % (table["title"],))
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][0]
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for row in table["rows"]:
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row["key"] = "%s.%s" % (nested_key_name, row["key"])
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key_sep = "[0]." if is_array else "."
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for table in req_tables:
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if table.get("no-table"):
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continue
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for row in table["rows"]:
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nested_key = key + key_sep + row["key"]
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endpoint["req_params"].append({
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"key": nested_key,
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"loc": "JSON body",
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"type": row["type"],
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"desc": row["req_str"] + row["desc"]
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})
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# endfor[param]
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for row in endpoint["req_params"]:
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self.log("Request parameter: %s" % row)
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# group params by location to ease templating
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endpoint["req_param_by_loc"] = {
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# path: [...], query: [...], body: [...]
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}
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for p in endpoint["req_params"]:
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if p["loc"] not in endpoint["req_param_by_loc"]:
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endpoint["req_param_by_loc"][p["loc"]] = []
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endpoint["req_param_by_loc"][p["loc"]].append(p)
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good_response = None
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for code, res in single_api.get("responses", {}).items():
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if not good_response and code == 200:
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good_response = res
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description = res.get("description", "")
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example = res.get("examples", {}).get("application/json", "")
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if description and example:
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endpoint["example"]["responses"].append({
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"code": code,
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"description": description,
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"example": example,
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})
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# form example request if it has one. It "has one" if all params
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# have either "x-example" or a "schema" with an "example".
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params_missing_examples = [
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p for p in single_api.get("parameters", []) if (
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"x-example" not in p and
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not Units.prop(p, "schema/example")
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)
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]
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if len(params_missing_examples) == 0:
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path_template = api.get("basePath", "").rstrip("/") + path
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qps = {}
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body = ""
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for param in single_api.get("parameters", []):
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if param["in"] == "path":
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path_template = path_template.replace(
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"{%s}" % param["name"], urllib.quote(
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param["x-example"]
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)
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)
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elif param["in"] == "body":
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body = param["schema"]["example"]
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elif param["in"] == "query":
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qps[param["name"]] = param["x-example"]
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query_string = "" if len(qps) == 0 else "?"+urllib.urlencode(qps)
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if body:
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endpoint["example"]["req"] = "%s %s%s HTTP/1.1\nContent-Type: application/json\n\n%s" % (
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method.upper(), path_template, query_string, body
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)
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else:
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endpoint["example"]["req"] = "%s %s%s HTTP/1.1\n\n" % (
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method.upper(), path_template, query_string
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)
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else:
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self.log(
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"The following parameters are missing examples :( \n %s" %
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[ p["name"] for p in params_missing_examples ]
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)
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# add response params if this API has any.
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if good_response:
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self.log("Found a 200 response for this API")
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res_type = Units.prop(good_response, "schema/type")
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res_name = Units.prop(good_response, "schema/name")
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if res_type and res_type not in ["object", "array"]:
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# response is a raw string or something like that
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good_table = {
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"title": None,
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"rows": [{
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"key": "<" + res_type + ">" if not res_name else res_name,
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"type": res_type,
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"desc": res.get("description", ""),
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"req_str": ""
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}]
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}
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if good_response.get("headers"):
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for (header_name, header) in good_response.get("headers").iteritems():
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good_table["rows"].append({
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"key": header_name,
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"type": "Header<" + header["type"] + ">",
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"desc": header["description"],
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"req_str": ""
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})
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endpoint["res_tables"].append(good_table)
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elif res_type and Units.prop(good_response, "schema/properties"):
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# response is an object:
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schema = good_response["schema"]
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res_tables = get_json_schema_object_fields(schema)
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for table in res_tables:
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if "no-table" not in table:
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endpoint["res_tables"].append(table)
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elif res_type and Units.prop(good_response, "schema/items"):
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# response is an array:
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# FIXME: Doesn't recurse at all.
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schema = good_response["schema"]
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array_type = Units.prop(schema, "items/type")
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if Units.prop(schema, "items/allOf"):
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array_type = (
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Units.prop(schema, "items/title")
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)
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endpoint["res_tables"].append({
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"title": schema.get("title", ""),
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"rows": [{
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"key": "N/A",
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"type": ("[%s]" % array_type),
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"desc": schema.get("description", ""),
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"req_str": ""
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}]
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})
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for response_table in endpoint["res_tables"]:
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self.log("Response: %s" % response_table["title"])
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for r in response_table["rows"]:
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self.log("Row: %s" % r)
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if len(endpoint["res_tables"]) == 0:
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self.log(
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"This API appears to have no response table. Are you " +
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"sure this API returns no parameters?"
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)
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endpoints.append(endpoint)
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aliases = single_api.get("x-alias", None)
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if aliases:
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alias_link = aliases["canonical-link"]
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for alias in aliases["aliases"]:
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endpoints.append({
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"method": method.upper(),
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"path": alias,
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"alias_for_path": full_path,
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"alias_link": alias_link
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})
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return {
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"base": api.get("basePath").rstrip("/"),
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"group": group_name,
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"endpoints": endpoints,
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}
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def load_swagger_apis(self):
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paths = [
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V1_CLIENT_API, V2_CLIENT_API
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]
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apis = {}
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|
for path in paths:
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|
is_v2 = (path == V2_CLIENT_API)
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|
if not os.path.exists(V2_CLIENT_API):
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self.log("Skipping v2 apis: %s does not exist." % V2_CLIENT_API)
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continue
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|
for filename in os.listdir(path):
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|
if not filename.endswith(".yaml"):
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continue
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self.log("Reading swagger API: %s" % filename)
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|
with open(os.path.join(path, filename), "r") as f:
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# strip .yaml
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|
group_name = filename[:-5].replace("-", "_")
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if is_v2:
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group_name = "v2_" + group_name
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api = yaml.load(f.read())
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|
api["__meta"] = self._load_swagger_meta(api, group_name)
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apis[group_name] = api
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return apis
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|
def load_common_event_fields(self):
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|
path = CORE_EVENT_SCHEMA
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event_types = {}
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for (root, dirs, files) in os.walk(path):
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|
for filename in files:
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|
if not filename.endswith(".json"):
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continue
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event_type = filename[:-5] # strip the ".json"
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filepath = os.path.join(root, filename)
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with open(filepath) as f:
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try:
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event_info = json.load(f)
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|
except Exception as e:
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|
raise ValueError(
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|
"Error reading file %r" % (filepath,), e
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)
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if "event" not in event_type:
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continue # filter ImageInfo and co
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table = {
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"title": event_info["title"],
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"desc": event_info["description"],
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"rows": []
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}
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|
for prop in sorted(event_info["properties"]):
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|
row = {
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"key": prop,
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"type": event_info["properties"][prop]["type"],
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"desc": event_info["properties"][prop].get("description","")
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}
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table["rows"].append(row)
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event_types[event_type] = table
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return event_types
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|
|
def load_event_examples(self):
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|
path = V1_EVENT_EXAMPLES
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|
examples = {}
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|
for filename in os.listdir(path):
|
|
if not filename.startswith("m."):
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|
continue
|
|
with open(os.path.join(path, filename), "r") as f:
|
|
examples[filename] = json.loads(f.read())
|
|
if filename == "m.room.message#m.text":
|
|
examples["m.room.message"] = examples[filename]
|
|
return examples
|
|
|
|
def load_event_schemas(self):
|
|
path = V1_EVENT_SCHEMA
|
|
schemata = {}
|
|
|
|
for filename in os.listdir(path):
|
|
if not filename.startswith("m."):
|
|
continue
|
|
self.log("Reading %s" % os.path.join(path, filename))
|
|
with open(os.path.join(path, filename), "r") as f:
|
|
json_schema = json.loads(f.read())
|
|
schema = {
|
|
"typeof": None,
|
|
"typeof_info": "",
|
|
"type": None,
|
|
"title": None,
|
|
"desc": None,
|
|
"msgtype": None,
|
|
"content_fields": [
|
|
# {
|
|
# title: "<title> key"
|
|
# rows: [
|
|
# { key: <key_name>, type: <string>,
|
|
# desc: <desc>, required: <bool> }
|
|
# ]
|
|
# }
|
|
]
|
|
}
|
|
|
|
# add typeof
|
|
base_defs = {
|
|
ROOM_EVENT: "Message Event",
|
|
STATE_EVENT: "State Event"
|
|
}
|
|
if type(json_schema.get("allOf")) == list:
|
|
schema["typeof"] = base_defs.get(
|
|
json_schema["allOf"][0].get("$ref")
|
|
)
|
|
elif json_schema.get("title"):
|
|
schema["typeof"] = json_schema["title"]
|
|
|
|
# add type
|
|
schema["type"] = Units.prop(
|
|
json_schema, "properties/type/enum"
|
|
)[0]
|
|
|
|
# add summary and desc
|
|
schema["title"] = json_schema.get("title")
|
|
schema["desc"] = json_schema.get("description", "")
|
|
|
|
# walk the object for field info
|
|
schema["content_fields"] = get_json_schema_object_fields(
|
|
Units.prop(json_schema, "properties/content")
|
|
)
|
|
|
|
# This is horrible because we're special casing a key on m.room.member.
|
|
# We need to do this because we want to document a non-content object.
|
|
if schema["type"] == "m.room.member":
|
|
invite_room_state = get_json_schema_object_fields(
|
|
json_schema["properties"]["invite_room_state"]["items"]
|
|
)
|
|
schema["content_fields"].extend(invite_room_state)
|
|
|
|
|
|
# grab msgtype if it is the right kind of event
|
|
msgtype = Units.prop(
|
|
json_schema, "properties/content/properties/msgtype/enum"
|
|
)
|
|
if msgtype:
|
|
schema["msgtype"] = msgtype[0] # enum prop
|
|
|
|
# link to msgtypes for m.room.message
|
|
if schema["type"] == "m.room.message" and not msgtype:
|
|
schema["desc"] += (
|
|
" For more information on ``msgtypes``, see "+
|
|
"`m.room.message msgtypes`_."
|
|
)
|
|
|
|
# Assign state key info if it has some
|
|
if schema["typeof"] == "State Event":
|
|
skey_desc = Units.prop(
|
|
json_schema, "properties/state_key/description"
|
|
)
|
|
if not skey_desc:
|
|
raise Exception("Missing description for state_key")
|
|
schema["typeof_info"] = "``state_key``: %s" % skey_desc
|
|
|
|
schemata[filename] = schema
|
|
return schemata
|
|
|
|
def load_spec_meta(self):
|
|
path = CHANGELOG
|
|
title_part = None
|
|
version = None
|
|
changelog_lines = []
|
|
with open(path, "r") as f:
|
|
prev_line = None
|
|
for line in f.readlines():
|
|
if line.strip().startswith(".. "):
|
|
continue # comment
|
|
if prev_line is None:
|
|
prev_line = line
|
|
continue
|
|
if not title_part:
|
|
# find the title underline (at least 3 =)
|
|
if re.match("^[=]{3,}$", line.strip()):
|
|
title_part = prev_line
|
|
continue
|
|
prev_line = line
|
|
else: # have title, get body (stop on next title or EOF)
|
|
if re.match("^[=]{3,}$", line.strip()):
|
|
# we added the title in the previous iteration, pop it
|
|
# then bail out.
|
|
changelog_lines.pop()
|
|
break
|
|
changelog_lines.append(line)
|
|
|
|
# parse out version from title
|
|
for word in title_part.split():
|
|
if re.match("^v[0-9\.]+$", word):
|
|
version = word[1:] # strip the 'v'
|
|
|
|
self.log("Version: %s Title part: %s Changelog line count: %s" % (
|
|
version, title_part, len(changelog_lines)
|
|
))
|
|
if not version or len(changelog_lines) == 0:
|
|
raise Exception("Failed to parse CHANGELOG.rst")
|
|
|
|
return {
|
|
"version": version,
|
|
"changelog": "".join(changelog_lines)
|
|
}
|
|
|
|
|
|
def load_spec_targets(self):
|
|
with open(TARGETS, "r") as f:
|
|
return yaml.load(f.read())
|
|
|
|
|
|
def load_git_version(self):
|
|
null = open(os.devnull, 'w')
|
|
cwd = os.path.dirname(os.path.abspath(__file__))
|
|
try:
|
|
git_branch = subprocess.check_output(
|
|
['git', 'rev-parse', '--abbrev-ref', 'HEAD'],
|
|
stderr=null,
|
|
cwd=cwd,
|
|
).strip()
|
|
except subprocess.CalledProcessError:
|
|
git_branch = ""
|
|
try:
|
|
git_tag = subprocess.check_output(
|
|
['git', 'describe', '--exact-match'],
|
|
stderr=null,
|
|
cwd=cwd,
|
|
).strip()
|
|
git_tag = "tag=" + git_tag
|
|
except subprocess.CalledProcessError:
|
|
git_tag = ""
|
|
try:
|
|
git_commit = subprocess.check_output(
|
|
['git', 'rev-parse', '--short', 'HEAD'],
|
|
stderr=null,
|
|
cwd=cwd,
|
|
).strip()
|
|
except subprocess.CalledProcessError:
|
|
git_commit = ""
|
|
try:
|
|
dirty_string = "-this_is_a_dirty_checkout"
|
|
is_dirty = subprocess.check_output(
|
|
['git', 'describe', '--dirty=' + dirty_string, "--all"],
|
|
stderr=null,
|
|
cwd=cwd,
|
|
).strip().endswith(dirty_string)
|
|
git_dirty = "dirty" if is_dirty else ""
|
|
except subprocess.CalledProcessError:
|
|
git_dirty = ""
|
|
|
|
git_version = "Unknown"
|
|
if git_branch or git_tag or git_commit or git_dirty:
|
|
git_version = ",".join(
|
|
s for s in
|
|
(git_branch, git_tag, git_commit, git_dirty,)
|
|
if s
|
|
).encode("ascii")
|
|
return {
|
|
"string": git_version,
|
|
"revision": git_commit
|
|
}
|