mirror of
https://github.com/rclone/rclone.git
synced 2024-12-12 10:12:41 +01:00
6427029c4e
* Update all dependencies * Remove all `[[constraint]]` from Gopkg.toml * Add in the minimum number of `[[override]]` to build * Remove go get of github.com/inconshreveable/mousetrap as it is vendored * Update docs with new policy on constraints
223 lines
8.4 KiB
Python
223 lines
8.4 KiB
Python
import os
|
|
|
|
from stone.backend import CodeBackend
|
|
from stone.ir import (
|
|
is_void_type,
|
|
is_struct_type
|
|
)
|
|
|
|
from go_helpers import (
|
|
HEADER,
|
|
fmt_type,
|
|
fmt_var,
|
|
generate_doc,
|
|
)
|
|
|
|
|
|
class GoClientBackend(CodeBackend):
|
|
def generate(self, api):
|
|
for namespace in api.namespaces.values():
|
|
if len(namespace.routes) > 0:
|
|
self._generate_client(namespace)
|
|
|
|
def _generate_client(self, namespace):
|
|
file_name = os.path.join(self.target_folder_path, namespace.name,
|
|
'client.go')
|
|
with self.output_to_relative_path(file_name):
|
|
self.emit_raw(HEADER)
|
|
self.emit()
|
|
self.emit('package %s' % namespace.name)
|
|
self.emit()
|
|
|
|
self.emit('// Client interface describes all routes in this namespace')
|
|
with self.block('type Client interface'):
|
|
for route in namespace.routes:
|
|
generate_doc(self, route)
|
|
self.emit(self._generate_route_signature(namespace, route))
|
|
self.emit()
|
|
|
|
self.emit('type apiImpl dropbox.Context')
|
|
for route in namespace.routes:
|
|
self._generate_route(namespace, route)
|
|
self.emit('// New returns a Client implementation for this namespace')
|
|
with self.block('func New(c dropbox.Config) Client'):
|
|
self.emit('ctx := apiImpl(dropbox.NewContext(c))')
|
|
self.emit('return &ctx')
|
|
|
|
def _generate_route_signature(self, namespace, route):
|
|
req = fmt_type(route.arg_data_type, namespace)
|
|
res = fmt_type(route.result_data_type, namespace, use_interface=True)
|
|
fn = fmt_var(route.name)
|
|
style = route.attrs.get('style', 'rpc')
|
|
|
|
arg = '' if is_void_type(route.arg_data_type) else 'arg {req}'
|
|
ret = '(err error)' if is_void_type(route.result_data_type) else \
|
|
'(res {res}, err error)'
|
|
signature = '{fn}(' + arg + ') ' + ret
|
|
if style == 'download':
|
|
signature = '{fn}(' + arg + \
|
|
') (res {res}, content io.ReadCloser, err error)'
|
|
elif style == 'upload':
|
|
signature = '{fn}(' + arg + ', content io.Reader) ' + ret
|
|
if is_void_type(route.arg_data_type):
|
|
signature = '{fn}(content io.Reader) ' + ret
|
|
return signature.format(fn=fn, req=req, res=res)
|
|
|
|
|
|
def _generate_route(self, namespace, route):
|
|
out = self.emit
|
|
fn = fmt_var(route.name)
|
|
err = fmt_type(route.error_data_type, namespace)
|
|
out('//%sAPIError is an error-wrapper for the %s route' %
|
|
(fn, route.name))
|
|
with self.block('type {fn}APIError struct'.format(fn=fn)):
|
|
out('dropbox.APIError')
|
|
out('EndpointError {err} `json:"error"`'.format(err=err))
|
|
out()
|
|
|
|
signature = 'func (dbx *apiImpl) ' + self._generate_route_signature(
|
|
namespace, route)
|
|
with self.block(signature):
|
|
if route.deprecated is not None:
|
|
out('log.Printf("WARNING: API `%s` is deprecated")' % fn)
|
|
if route.deprecated.by is not None:
|
|
out('log.Printf("Use API `%s` instead")' % fmt_var(route.deprecated.by.name))
|
|
out()
|
|
|
|
out('cli := dbx.Client')
|
|
out()
|
|
|
|
self._generate_request(namespace, route)
|
|
self._generate_post()
|
|
self._generate_response(route)
|
|
ok_check = 'if resp.StatusCode == http.StatusOK'
|
|
if fn == "Download":
|
|
ok_check += ' || resp.StatusCode == http.StatusPartialContent'
|
|
with self.block(ok_check):
|
|
self._generate_result(route)
|
|
self._generate_error_handling(route)
|
|
|
|
out()
|
|
|
|
def _generate_request(self, namespace, route):
|
|
out = self.emit
|
|
auth = route.attrs.get('auth', '')
|
|
host = route.attrs.get('host', 'api')
|
|
style = route.attrs.get('style', 'rpc')
|
|
|
|
body = 'nil'
|
|
if not is_void_type(route.arg_data_type):
|
|
out('dbx.Config.LogDebug("arg: %v", arg)')
|
|
|
|
out('b, err := json.Marshal(arg)')
|
|
with self.block('if err != nil'):
|
|
out('return')
|
|
out()
|
|
if host != 'content':
|
|
body = 'bytes.NewReader(b)'
|
|
if style == 'upload':
|
|
body = 'content'
|
|
|
|
headers = {}
|
|
if not is_void_type(route.arg_data_type):
|
|
if host == 'content' or style in ['upload', 'download']:
|
|
headers["Dropbox-API-Arg"] = "string(b)"
|
|
else:
|
|
headers["Content-Type"] = '"application/json"'
|
|
if style == 'upload':
|
|
headers["Content-Type"] = '"application/octet-stream"'
|
|
|
|
out('headers := map[string]string{')
|
|
for k, v in sorted(headers.items()):
|
|
out('\t"{}": {},'.format(k, v))
|
|
out('}')
|
|
if fmt_var(route.name) == "Download":
|
|
out('for k, v := range arg.ExtraHeaders { headers[k] = v }')
|
|
if auth != 'noauth' and auth != 'team':
|
|
with self.block('if dbx.Config.AsMemberID != ""'):
|
|
out('headers["Dropbox-API-Select-User"] = dbx.Config.AsMemberID')
|
|
out()
|
|
|
|
authed = 'false' if auth == 'noauth' else 'true'
|
|
out('req, err := (*dropbox.Context)(dbx).NewRequest("{}", "{}", {}, "{}", "{}", headers, {})'.format(
|
|
host, style, authed, namespace.name, route.name, body))
|
|
with self.block('if err != nil'):
|
|
out('return')
|
|
|
|
out('dbx.Config.LogInfo("req: %v", req)')
|
|
|
|
out()
|
|
|
|
def _generate_post(self):
|
|
out = self.emit
|
|
|
|
out('resp, err := cli.Do(req)')
|
|
|
|
with self.block('if err != nil'):
|
|
out('return')
|
|
out()
|
|
|
|
out('dbx.Config.LogInfo("resp: %v", resp)')
|
|
|
|
def _generate_response(self, route):
|
|
out = self.emit
|
|
style = route.attrs.get('style', 'rpc')
|
|
if style == 'download':
|
|
out('body := []byte(resp.Header.Get("Dropbox-API-Result"))')
|
|
out('content = resp.Body')
|
|
else:
|
|
out('defer resp.Body.Close()')
|
|
with self.block('body, err := ioutil.ReadAll(resp.Body);'
|
|
'if err != nil'):
|
|
out('return')
|
|
out()
|
|
|
|
out('dbx.Config.LogDebug("body: %v", body)')
|
|
|
|
def _generate_error_handling(self, route):
|
|
out = self.emit
|
|
style = route.attrs.get('style', 'rpc')
|
|
with self.block('if resp.StatusCode == http.StatusConflict'):
|
|
# If style was download, body was assigned to a header.
|
|
# Need to re-read the response body to parse the error
|
|
if style == 'download':
|
|
out('defer resp.Body.Close()')
|
|
with self.block('body, err = ioutil.ReadAll(resp.Body);'
|
|
'if err != nil'):
|
|
out('return')
|
|
out('var apiError %sAPIError' % fmt_var(route.name))
|
|
with self.block('err = json.Unmarshal(body, &apiError);'
|
|
'if err != nil'):
|
|
out('return')
|
|
out('err = apiError')
|
|
out('return')
|
|
out('var apiError dropbox.APIError')
|
|
with self.block('if resp.StatusCode == http.StatusBadRequest'):
|
|
out('apiError.ErrorSummary = string(body)')
|
|
out('err = apiError')
|
|
out('return')
|
|
with self.block('err = json.Unmarshal(body, &apiError);'
|
|
'if err != nil'):
|
|
out('return')
|
|
out('err = apiError')
|
|
out('return')
|
|
|
|
def _generate_result(self, route):
|
|
out = self.emit
|
|
if is_struct_type(route.result_data_type) and \
|
|
route.result_data_type.has_enumerated_subtypes():
|
|
out('var tmp %sUnion' % fmt_var(route.result_data_type.name, export=False))
|
|
with self.block('err = json.Unmarshal(body, &tmp);'
|
|
'if err != nil'):
|
|
out('return')
|
|
with self.block('switch tmp.Tag'):
|
|
for t in route.result_data_type.get_enumerated_subtypes():
|
|
with self.block('case "%s":' % t.name, delim=(None, None)):
|
|
self.emit('res = tmp.%s' % fmt_var(t.name))
|
|
elif not is_void_type(route.result_data_type):
|
|
with self.block('err = json.Unmarshal(body, &res);'
|
|
'if err != nil'):
|
|
out('return')
|
|
out()
|
|
out('return')
|