1590d32ab0
This adds back in support for specifying channel variables during an originate without compromising the ability to specify query parameters in the JSON body. This was accomplished by generating the body-parsing code in a separate function instead of being integrated with the URI query parameter parsing code such that it could be called by paths with body parameters. This is transparent to the user of the API and prevents manual duplication of code or data structures. (closes issue ASTERISK-23051) Review: https://reviewboard.asterisk.org/r/3122/ Reported by: Matt Jordan ........ Merged revisions 406003 from http://svn.asterisk.org/svn/asterisk/branches/12 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@406006 65c4cc65-6c06-0410-ace0-fbb531ad65f3
246 lines
8.4 KiB
Python
246 lines
8.4 KiB
Python
#
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# Asterisk -- An open source telephony toolkit.
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#
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# Copyright (C) 2013, Digium, Inc.
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#
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# David M. Lee, II <dlee@digium.com>
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#
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# See http://www.asterisk.org for more information about
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# the Asterisk project. Please do not directly contact
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# any of the maintainers of this project for assistance;
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# the project provides a web site, mailing lists and IRC
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# channels for your use.
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#
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# This program is free software, distributed under the terms of
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# the GNU General Public License Version 2. See the LICENSE file
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# at the top of the source tree.
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#
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"""Implementation of SwaggerPostProcessor which adds fields needed to generate
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Asterisk RESTful HTTP binding code.
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"""
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import re
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from swagger_model import *
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try:
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from collections import OrderedDict
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except ImportError:
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from odict import OrderedDict
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def simple_name(name):
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"""Removes the {markers} from a path segement.
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@param name: Swagger path segement, with {pathVar} markers.
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"""
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if name.startswith('{') and name.endswith('}'):
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return name[1:-1]
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return name
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def wikify(str):
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"""Escapes a string for the wiki.
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@param str: String to escape
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"""
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return re.sub(r'([{}\[\]])', r'\\\1', str)
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def snakify(name):
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"""Helper to take a camelCase or dash-seperated name and make it
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snake_case.
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"""
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r = ''
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prior_lower = False
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for c in name:
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if c.isupper() and prior_lower:
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r += "_"
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if c is '-':
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c = '_'
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prior_lower = c.islower()
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r += c.lower()
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return r
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class PathSegment(Stringify):
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"""Tree representation of a Swagger API declaration.
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"""
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def __init__(self, name, parent):
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"""Ctor.
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@param name: Name of this path segment. May have {pathVar} markers.
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@param parent: Parent PathSegment.
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"""
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#: Segment name, with {pathVar} markers removed
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self.name = simple_name(name)
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#: True if segment is a {pathVar}, else None.
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self.is_wildcard = None
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#: Underscore seperated name all ancestor segments
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self.full_name = None
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#: Dictionary of child PathSegements
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self.__children = OrderedDict()
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#: List of operations on this segement
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self.operations = []
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if self.name != name:
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self.is_wildcard = True
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if not self.name:
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assert(not parent)
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self.full_name = ''
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if not parent or not parent.name:
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self.full_name = name
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else:
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self.full_name = "%s_%s" % (parent.full_name, self.name)
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def get_child(self, path):
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"""Walks decendents to get path, creating it if necessary.
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@param path: List of path names.
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@return: PageSegment corresponding to path.
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"""
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assert simple_name(path[0]) == self.name
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if (len(path) == 1):
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return self
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child = self.__children.get(path[1])
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if not child:
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child = PathSegment(path[1], self)
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self.__children[path[1]] = child
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return child.get_child(path[1:])
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def children(self):
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"""Gets list of children.
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"""
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return self.__children.values()
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def num_children(self):
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"""Gets count of children.
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"""
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return len(self.__children)
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class AsteriskProcessor(SwaggerPostProcessor):
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"""A SwaggerPostProcessor which adds fields needed to generate Asterisk
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RESTful HTTP binding code.
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"""
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#: How Swagger types map to C.
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type_mapping = {
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'string': 'const char *',
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'boolean': 'int',
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'number': 'int',
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'int': 'int',
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'long': 'long',
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'double': 'double',
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'float': 'float',
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}
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#: String conversion functions for string to C type.
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convert_mapping = {
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'string': '',
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'int': 'atoi',
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'long': 'atol',
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'double': 'atof',
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'boolean': 'ast_true',
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}
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#: JSON conversion functions
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json_convert_mapping = {
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'string': 'ast_json_string_get',
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'int': 'ast_json_integer_get',
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'long': 'ast_json_integer_get',
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'double': 'ast_json_real_get',
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'boolean': 'ast_json_is_true',
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}
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def __init__(self, wiki_prefix):
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self.wiki_prefix = wiki_prefix
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def process_resource_api(self, resource_api, context):
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resource_api.wiki_prefix = self.wiki_prefix
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# Derive a resource name from the API declaration's filename
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resource_api.name = re.sub('\..*', '',
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os.path.basename(resource_api.path))
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# Now in all caps, for include guard
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resource_api.name_caps = resource_api.name.upper()
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resource_api.name_title = resource_api.name.capitalize()
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resource_api.c_name = snakify(resource_api.name)
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# Construct the PathSegement tree for the API.
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if resource_api.api_declaration:
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resource_api.root_path = PathSegment('', None)
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for api in resource_api.api_declaration.apis:
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segment = resource_api.root_path.get_child(api.path.split('/'))
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for operation in api.operations:
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segment.operations.append(operation)
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api.full_name = segment.full_name
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# Since every API path should start with /[resource], root should
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# have exactly one child.
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if resource_api.root_path.num_children() != 1:
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raise SwaggerError(
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"Should not mix resources in one API declaration", context)
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# root_path isn't needed any more
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resource_api.root_path = resource_api.root_path.children()[0]
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if resource_api.name != resource_api.root_path.name:
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raise SwaggerError(
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"API declaration name should match", context)
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resource_api.root_full_name = resource_api.root_path.full_name
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def process_api(self, api, context):
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api.wiki_path = wikify(api.path)
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def process_operation(self, operation, context):
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# Nicknames are camelCase, Asterisk coding is snake case
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operation.c_nickname = snakify(operation.nickname)
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operation.c_http_method = 'AST_HTTP_' + operation.http_method
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if not operation.summary.endswith("."):
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raise SwaggerError("Summary should end with .", context)
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operation.wiki_summary = wikify(operation.summary or "")
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operation.wiki_notes = wikify(operation.notes or "")
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operation.parse_body = (operation.body_parameter or operation.has_query_parameters) and True
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def process_parameter(self, parameter, context):
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if parameter.param_type == 'body':
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parameter.is_body_parameter = True;
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parameter.c_data_type = 'struct ast_json *'
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else:
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parameter.is_body_parameter = False;
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if not parameter.data_type in self.type_mapping:
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raise SwaggerError(
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"Invalid parameter type %s" % parameter.data_type, context)
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# Type conversions
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parameter.c_data_type = self.type_mapping[parameter.data_type]
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parameter.c_convert = self.convert_mapping[parameter.data_type]
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parameter.json_convert = self.json_convert_mapping[parameter.data_type]
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# Parameter names are camelcase, Asterisk convention is snake case
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parameter.c_name = snakify(parameter.name)
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# You shouldn't put a space between 'char *' and the variable
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if parameter.c_data_type.endswith('*'):
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parameter.c_space = ''
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else:
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parameter.c_space = ' '
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parameter.wiki_description = wikify(parameter.description)
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def process_model(self, model, context):
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model.description_dox = model.description.replace('\n', '\n * ')
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model.description_dox = re.sub(' *\n', '\n', model.description_dox)
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model.wiki_description = wikify(model.description)
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model.c_id = snakify(model.id)
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return model
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def process_property(self, prop, context):
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if "-" in prop.name:
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raise SwaggerError("Property names cannot have dashes", context)
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if prop.name != prop.name.lower():
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raise SwaggerError("Property name should be all lowercase",
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context)
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prop.wiki_description = wikify(prop.description)
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def process_type(self, swagger_type, context):
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swagger_type.c_name = snakify(swagger_type.name)
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swagger_type.c_singular_name = snakify(swagger_type.singular_name)
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swagger_type.wiki_name = wikify(swagger_type.name)
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