mirror of
https://github.com/matrix-org/matrix-spec
synced 2025-12-20 16:38:37 +01:00
6c66bfc755
As a side effect, I got rid of all of the horrible symlinks and just put in all of the proper relative paths. Because the horrible symlinks were horrible.
813 lines
32 KiB
Python
813 lines
32 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 logging
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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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HTTP_APIS = "../api/client-server"
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V1_EVENT_EXAMPLES = "../event-schemas/examples"
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V1_EVENT_SCHEMA = "../event-schemas/schema"
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CORE_EVENT_SCHEMA = "../event-schemas/schema/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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logger = logging.getLogger(__name__)
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def resolve_references(path, schema):
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if isinstance(schema, dict):
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result = {}
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for key, value in schema.items():
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if key == "$ref":
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path = os.path.join(os.path.dirname(path), value)
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with open(path) as f:
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schema = json.load(f)
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return resolve_references(path, schema)
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else:
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result[key] = resolve_references(path, value)
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return result
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elif isinstance(schema, list):
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return [resolve_references(path, value) for value in schema]
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else:
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return schema
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def inherit_parents(obj):
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"""
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Recurse through the 'allOf' declarations in the object
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"""
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logger.debug("inherit_parents %r" % obj)
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parents = obj.get("allOf", [])
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if not parents:
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return obj
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result = {}
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# settings defined in the child take priority over the parents, so we
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# iterate through the parents first, and then overwrite with the settings
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# from the child.
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for p in map(inherit_parents, parents) + [obj]:
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for key in ('title', 'type', 'required'):
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if p.get(key):
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result[key] = p[key]
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for key in ('properties', 'additionalProperties', 'patternProperties'):
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if p.get(key):
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result.setdefault(key, {}).update(p[key])
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return result
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def get_json_schema_object_fields(obj, enforce_title=False, include_parents=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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obj = inherit_parents(obj)
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logger.debug("Processing object with title '%s'", obj.get("title"))
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if enforce_title and not obj.get("title"):
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# Force a default titile of "NO_TITLE" to make it obvious in the
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# specification output which parts of the schema are missing a title
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obj["title"] = 'NO_TITLE'
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additionalProps = obj.get("additionalProperties")
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if additionalProps:
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# not "really" an object, just a KV store
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logger.debug("%s is a pseudo-object", obj.get("title"))
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key_type = additionalProps.get("x-pattern", "string")
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value_type = additionalProps["type"]
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if value_type == "object":
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nested_objects = get_json_schema_object_fields(
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additionalProps,
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enforce_title=True,
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include_parents=include_parents,
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)
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value_type = nested_objects[0]["title"]
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tables = [x for x in nested_objects if not x.get("no-table")]
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else:
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key_type = "string"
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tables = []
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tables = [{
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"title": "{%s: %s}" % (key_type, value_type),
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"no-table": True
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}]+tables
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logger.debug("%s done: returning %s", obj.get("title"), tables)
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return tables
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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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# 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 not props and obj.get("title"):
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return [{
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"title": obj["title"],
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"no-table": True
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}]
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if not props:
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raise Exception(
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"Object %s has no properties and no title" % obj
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)
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required_keys = set(obj.get("required", []))
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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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for key_name in sorted(props):
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logger.debug("Processing property %s.%s", obj.get('title'), key_name)
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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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prop_type = props[key_name].get('type')
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if prop_type is None:
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raise KeyError("Property '%s' of object '%s' missing 'type' field"
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% (key_name, obj))
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logger.debug("%s is a %s", key_name, prop_type)
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if prop_type == "object":
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nested_objects = get_json_schema_object_fields(
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props[key_name],
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enforce_title=True,
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include_parents=include_parents,
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)
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value_type = nested_objects[0]["title"]
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value_id = value_type
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tables += [x for x in nested_objects if not x.get("no-table")]
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elif prop_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_objects = get_json_schema_object_fields(
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props[key_name]["items"],
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enforce_title=True,
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include_parents=include_parents,
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)
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value_id = nested_objects[0]["title"]
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value_type = "[%s]" % value_id
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tables += nested_objects
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else:
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value_type = props[key_name]["items"]["type"]
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if isinstance(value_type, list):
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value_type = " or ".join(value_type)
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value_id = value_type
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value_type = "[%s]" % value_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 = prop_type
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value_id = prop_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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if desc:
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desc += " "
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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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if desc:
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desc += " "
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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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"id": value_id,
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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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logger.debug("Done property %s" % key_name)
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return tables
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def get_tables_for_schema(path, schema, include_parents=False):
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resolved_schema = resolve_references(path, schema)
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tables = get_json_schema_object_fields(resolved_schema,
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include_parents=include_parents,
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)
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# the result may contain duplicates, if objects are referred to more than
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# once. Filter them out.
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#
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# Go through the tables backwards so that we end up with a breadth-first
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# rather than depth-first ordering.
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titles = set()
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filtered = []
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for table in reversed(tables):
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if table.get("title") in titles:
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continue
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titles.add(table.get("title"))
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filtered.append(table)
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filtered.reverse()
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return filtered
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class MatrixUnits(Units):
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def _load_swagger_meta(self, filepath, 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_tables_for_schema(
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filepath, req_obj, include_parents=True)
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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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"key": s["key"]
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for rtable in req_tables
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for s in rtable["rows"]
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if s["id"] == table["title"]
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}.get("key", None)
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if nested_key_name is None:
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raise Exception("Failed to find table for %r" % (table["title"],))
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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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example = param["x-example"]
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if type(example) == list:
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for value in example:
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qps.append((param["name"], value))
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else:
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qps.append((param["name"], 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_tables_for_schema(filepath, schema,
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include_parents=True,
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)
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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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)
|
|
endpoint["res_tables"].append({
|
|
"title": schema.get("title", ""),
|
|
"rows": [{
|
|
"key": "N/A",
|
|
"type": ("[%s]" % array_type),
|
|
"desc": schema.get("description", ""),
|
|
"req_str": ""
|
|
}]
|
|
})
|
|
|
|
for response_table in endpoint["res_tables"]:
|
|
self.log("Response: %s" % response_table["title"])
|
|
for r in response_table["rows"]:
|
|
self.log("Row: %s" % r)
|
|
if len(endpoint["res_tables"]) == 0:
|
|
self.log(
|
|
"This API appears to have no response table. Are you " +
|
|
"sure this API returns no parameters?"
|
|
)
|
|
|
|
endpoints.append(endpoint)
|
|
|
|
aliases = single_api.get("x-alias", None)
|
|
if aliases:
|
|
alias_link = aliases["canonical-link"]
|
|
for alias in aliases["aliases"]:
|
|
endpoints.append({
|
|
"method": method.upper(),
|
|
"path": alias,
|
|
"alias_for_path": full_path,
|
|
"alias_link": alias_link
|
|
})
|
|
|
|
return {
|
|
"base": api.get("basePath").rstrip("/"),
|
|
"group": group_name,
|
|
"endpoints": endpoints,
|
|
}
|
|
|
|
def load_swagger_apis(self):
|
|
apis = {}
|
|
path = HTTP_APIS
|
|
for filename in os.listdir(path):
|
|
if not filename.endswith(".yaml"):
|
|
continue
|
|
self.log("Reading swagger API: %s" % filename)
|
|
filepath = os.path.join(path, filename)
|
|
with open(filepath, "r") as f:
|
|
# strip .yaml
|
|
group_name = filename[:-5].replace("-", "_")
|
|
api = yaml.load(f.read())
|
|
api["__meta"] = self._load_swagger_meta(
|
|
filepath, api, group_name
|
|
)
|
|
apis[group_name] = api
|
|
return apis
|
|
|
|
def load_common_event_fields(self):
|
|
path = CORE_EVENT_SCHEMA
|
|
event_types = {}
|
|
|
|
for (root, dirs, files) in os.walk(path):
|
|
for filename in files:
|
|
if not filename.endswith(".json"):
|
|
continue
|
|
|
|
event_type = filename[:-5] # strip the ".json"
|
|
filepath = os.path.join(root, filename)
|
|
with open(filepath) as f:
|
|
try:
|
|
event_info = json.load(f)
|
|
except Exception as e:
|
|
raise ValueError(
|
|
"Error reading file %r" % (filepath,), e
|
|
)
|
|
|
|
if "event" not in event_type:
|
|
continue # filter ImageInfo and co
|
|
|
|
table = {
|
|
"title": event_info["title"],
|
|
"desc": event_info["description"],
|
|
"rows": []
|
|
}
|
|
|
|
for prop in sorted(event_info["properties"]):
|
|
row = {
|
|
"key": prop,
|
|
"type": event_info["properties"][prop]["type"],
|
|
"desc": event_info["properties"][prop].get("description","")
|
|
}
|
|
table["rows"].append(row)
|
|
|
|
event_types[event_type] = table
|
|
return event_types
|
|
|
|
def load_event_examples(self):
|
|
path = V1_EVENT_EXAMPLES
|
|
examples = {}
|
|
for filename in os.listdir(path):
|
|
if not filename.startswith("m."):
|
|
continue
|
|
with open(os.path.join(path, filename), "r") as f:
|
|
event_name = filename.split("#")[0]
|
|
example = json.loads(f.read())
|
|
|
|
examples[filename] = examples.get(filename, [])
|
|
examples[filename].append(example)
|
|
if filename != event_name:
|
|
examples[event_name] = examples.get(event_name, [])
|
|
examples[event_name].append(example)
|
|
return examples
|
|
|
|
def load_event_schemas(self):
|
|
path = V1_EVENT_SCHEMA
|
|
schemata = {}
|
|
|
|
for filename in os.listdir(path):
|
|
if not filename.startswith("m."):
|
|
continue
|
|
filepath = os.path.join(path, filename)
|
|
self.log("Reading %s" % filepath)
|
|
with open(filepath, "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_tables_for_schema(filepath,
|
|
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_tables_for_schema(filepath,
|
|
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
|
|
}
|