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More helpful error messages for missing config

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This commit is contained in:
Mark Haines 2014-09-02 10:48:05 +01:00
parent ab0637c2c3
commit d45f89c95b
3 changed files with 29 additions and 6 deletions
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25
synapse/config/_base.py
View file

@ -21,6 +21,10 @@ import os
import yaml import yaml
class ConfigError(Exception):
pass
class Config(object): class Config(object):
def __init__(self, args): def __init__(self, args):
pass pass
@ -29,8 +33,25 @@ class Config(object):
def abspath(file_path): def abspath(file_path):
return os.path.abspath(file_path) if file_path else file_path return os.path.abspath(file_path) if file_path else file_path
@staticmethod @classmethod
def read_file(file_path): def check_file(cls, file_path, config_name):
if file_path is None:
raise ConfigError(
"Missing config for %s."
" Try running again with --generate-config"
% (config_name,)
)
if not os.path.exists(file_path):
raise ConfigError(
"File % config for %s doesn't exist."
" Try running again with --generate-config"
% (config_name,)
)
return cls.abspath(file_path)
@classmethod
def read_file(cls, file_path, config_name):
cls.check_file(file_path, config_name)
with open(file_path) as file_stream: with open(file_path) as file_stream:
return file_stream.read() return file_stream.read()

2
synapse/config/server.py
View file

@ -60,7 +60,7 @@ class ServerConfig(Config):
" service on the given port.") " service on the given port.")
def read_signing_key(self, signing_key_path): def read_signing_key(self, signing_key_path):
signing_key_base64 = self.read_file(signing_key_path) signing_key_base64 = self.read_file(signing_key_path, "signing_key")
signing_key_bytes = decode_base64(signing_key_base64) signing_key_bytes = decode_base64(signing_key_base64)
return nacl.signing.SigningKey(signing_key_bytes) return nacl.signing.SigningKey(signing_key_bytes)

8
synapse/config/tls.py
View file

@ -31,7 +31,9 @@ class TlsConfig(Config):
self.tls_private_key = self.read_tls_private_key( self.tls_private_key = self.read_tls_private_key(
args.tls_private_key_path args.tls_private_key_path
) )
self.tls_dh_params_path = self.abspath(args.tls_dh_params_path) self.tls_dh_params_path = self.check_path(
args.tls_dh_params_path, "tls_dh_params"
)
@classmethod @classmethod
def add_arguments(cls, parser): def add_arguments(cls, parser):
@ -45,11 +47,11 @@ class TlsConfig(Config):
help="PEM dh parameters for ephemeral keys") help="PEM dh parameters for ephemeral keys")
def read_tls_certificate(self, cert_path): def read_tls_certificate(self, cert_path):
cert_pem = self.read_file(cert_path) cert_pem = self.read_file(cert_path, "tls_certificate")
return crypto.load_certificate(crypto.FILETYPE_PEM, cert_pem) return crypto.load_certificate(crypto.FILETYPE_PEM, cert_pem)
def read_tls_private_key(self, private_key_path): def read_tls_private_key(self, private_key_path):
private_key_pem = self.read_file(private_key_path) private_key_pem = self.read_file(private_key_path, "tls_private_key")
return crypto.load_privatekey(crypto.FILETYPE_PEM, private_key_pem) return crypto.load_privatekey(crypto.FILETYPE_PEM, private_key_pem)
@classmethod @classmethod