IntenseWebs/pgadmin4
3
0
Fork 0
mirror of https://github.com/pgadmin-org/pgadmin4.git synced 2024-11-25 18:20:20 -06:00
Code Issues Packages Projects Releases Wiki Activity

Fix a number of broken connection detection scenarios.

Browse Source
This commit is contained in:
Akshay Joshi 2018-03-21 08:38:18 +00:00 committed by Dave Page
parent d358369ed5
commit 637f3b9d1a
12 changed files with 191 additions and 110 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
web/pgadmin/dashboard/static/js/dashboard.js
View File

@ -444,19 +444,26 @@ define('pgadmin.dashboard', [
pgAdmin.Dashboard.render_chart(container, data, dataset, sid, did, url, options, counter, refresh);
},
error: function(xhr) {
var err = $.parseJSON(xhr.responseText),
msg = err.errormsg,
cls;
let err = '';
let msg = '';
let cls = 'info';
if (xhr.readyState === 0) {
msg = gettext('Not connected to the server or the connection to the server has been closed.');
} else {
err = JSON.parse(xhr.responseText);
msg = err.errormsg;
// If we get a 428, it means the server isn't connected
if (xhr.status == 428) {
if (xhr.status === 428) {
if (_.isUndefined(msg) || _.isNull(msg)) {
msg = gettext('Please connect to the selected server to view the graph.');
}
cls = 'info';
} else {
msg = gettext('An error occurred whilst rendering the graph.');
cls = 'danger';
}
}
$(container).addClass('graph-error');
$(container).html(
@ -576,19 +583,26 @@ define('pgadmin.dashboard', [
filter.search();
},
error: function(model, xhr) {
var err = $.parseJSON(xhr.responseText),
msg = err.errormsg,
cls;
let err = '';
let msg = '';
let cls = 'info';
if (xhr.readyState === 0) {
msg = gettext('Not connected to the server or the connection to the server has been closed.');
} else {
err = JSON.parse(xhr.responseText);
msg = err.errormsg;
// If we get a 428, it means the server isn't connected
if (xhr.status == 428) {
if (xhr.status === 428) {
if (_.isUndefined(msg) || _.isNull(msg)) {
msg = gettext('Please connect to the selected server to view the table.');
}
cls = 'info';
} else {
msg = gettext('An error occurred whilst rendering the table.');
cls = 'danger';
}
}
// Replace the content with the error, if not already present. Always update the message
if (!$(container).hasClass('grid-error')) {

58
web/pgadmin/static/js/sqleditor/execute_query.js
View File

@ -52,7 +52,7 @@ class ExecuteQuery {
}, self.sqlServerObject.POLL_FALLBACK_TIME());
}
execute(sqlStatement, explainPlan) {
execute(sqlStatement, explainPlan, connect) {
// If it is an empty query, do nothing.
if (sqlStatement.length <= 0) return;
@ -63,11 +63,8 @@ class ExecuteQuery {
const sqlStatementWithAnalyze = ExecuteQuery.prepareAnalyzeSql(sqlStatement, explainPlan);
self.initializeExecutionOnSqlEditor(sqlStatementWithAnalyze);
service.post(
url_for('sqleditor.query_tool_start', {
'trans_id': self.sqlServerObject.transId,
}),
this.generateURLReconnectionFlag(connect),
JSON.stringify(sqlStatementWithAnalyze),
{headers: {'Content-Type': 'application/json'}})
.then(function (result) {
@ -90,11 +87,22 @@ class ExecuteQuery {
self.sqlServerObject._highlight_error(httpMessageData.data.result);
}
}).catch(function (error) {
self.onExecuteHTTPError(error.response.data);
self.onExecuteHTTPError(error);
}
);
}
generateURLReconnectionFlag(shouldReconnect) {
let url = url_for('sqleditor.query_tool_start', {
'trans_id': this.sqlServerObject.transId,
});
if (shouldReconnect) {
url += '?connect=1';
}
return url;
}
poll() {
const self = this;
let service = axios.create({});
@ -129,18 +137,21 @@ class ExecuteQuery {
}
).catch(
error => {
const errorData = error.response.data;
// Enable/Disable query tool button only if is_query_tool is true.
self.sqlServerObject.resetQueryHistoryObject(self.sqlServerObject);
self.loadingScreen.hide();
if (self.sqlServerObject.is_query_tool) {
self.enableSQLEditorButtons();
}
if (ExecuteQuery.wasConnectionLostToServer(errorData)) {
if (ExecuteQuery.wasConnectionLostToPythonServer(error.response)) {
self.handleConnectionToServerLost();
return;
}
const errorData = error.response.data;
if (self.userManagement.is_pga_login_required(errorData)) {
return self.userManagement.pga_login();
}
@ -159,7 +170,7 @@ class ExecuteQuery {
$('#btn-flash').prop('disabled', true);
this.sqlServerObject.query_start_time = new Date();
if(typeof sqlStatement === 'object') {
if (typeof sqlStatement === 'object') {
this.sqlServerObject.query = sqlStatement['sql'];
} else {
this.sqlServerObject.query = sqlStatement;
@ -182,39 +193,36 @@ class ExecuteQuery {
this.loadingScreen.hide();
this.enableSQLEditorButtons();
if (ExecuteQuery.wasConnectionLostToServer(httpMessage)) {
if (ExecuteQuery.wasConnectionLostToPythonServer(httpMessage.response)) {
this.handleConnectionToServerLost();
return;
}
if (this.userManagement.is_pga_login_required(httpMessage)) {
if (this.userManagement.is_pga_login_required(httpMessage.response)) {
this.sqlServerObject.save_state('execute', [this.explainPlan]);
this.userManagement.pga_login();
}
if (transaction.is_new_transaction_required(httpMessage)) {
if (transaction.is_new_transaction_required(httpMessage.response)) {
this.sqlServerObject.save_state('execute', [this.explainPlan]);
this.sqlServerObject.init_transaction();
}
let msg = httpMessage.errormsg;
if (httpMessage.responseJSON !== undefined) {
if (httpMessage.responseJSON.errormsg !== undefined) {
msg = httpMessage.responseJSON.errormsg;
}
if (httpMessage.status === 503 && httpMessage.responseJSON.info !== undefined &&
httpMessage.responseJSON.info === 'CONNECTION_LOST') {
setTimeout(function () {
if (this.wasDatabaseConnectionLost(httpMessage)) {
this.sqlServerObject.save_state('execute', [this.explainPlan]);
this.sqlServerObject.handle_connection_lost(false, httpMessage);
});
}
}
let msg = httpMessage.response.data.errormsg;
this.sqlServerObject.update_msg_history(false, msg);
}
wasDatabaseConnectionLost(httpMessage) {
return httpMessage.response.status === 503 &&
httpMessage.response.data.info !== undefined &&
httpMessage.response.data.info === 'CONNECTION_LOST';
}
removeGridViewMarker() {
if (this.sqlServerObject.gridView.marker) {
this.sqlServerObject.gridView.marker.clear();
@ -236,8 +244,8 @@ class ExecuteQuery {
$('#btn-cancel-query').prop('disabled', false);
}
static wasConnectionLostToServer(errorMessage) {
return errorMessage.readyState === 0;
static wasConnectionLostToPythonServer(httpResponse) {
return _.isUndefined(httpResponse) || _.isUndefined(httpResponse.data);
}
handleConnectionToServerLost() {

9
web/pgadmin/static/js/sqleditor/is_new_transaction_required.js
View File

@ -8,6 +8,15 @@
//////////////////////////////////////////////////////////////////////////
export function is_new_transaction_required(xhr) {
/* If responseJSON is undefined then it could be object of
* axios(Promise HTTP) response, so we should check accordingly.
*/
if (xhr.responseJSON === undefined && xhr.data !== undefined) {
return xhr.status === 404 && xhr.data &&
xhr.data.info &&
xhr.data.info === 'DATAGRID_TRANSACTION_REQUIRED';
}
return xhr.status === 404 && xhr.responseJSON &&
xhr.responseJSON.info &&
xhr.responseJSON.info === 'DATAGRID_TRANSACTION_REQUIRED';

4
web/pgadmin/tools/sqleditor/__init__.py
View File

@ -298,8 +298,10 @@ def start_query_tool(trans_id):
request.data, request.args, request.form
)
connect = 'connect' in request.args and request.args['connect'] == '1'
return StartRunningQuery(blueprint, current_app).execute(
sql, trans_id, session
sql, trans_id, session, connect
)

20
web/pgadmin/tools/sqleditor/static/js/sqleditor.js
View File

@ -1847,13 +1847,21 @@ define('tools.querytool', [
},
handle_connection_lost: function(create_transaction, xhr) {
var self= this;
if (xhr.responseJSON.data && !xhr.responseJSON.data.conn_id) {
/* If responseJSON is undefined then it could be object of
* axios(Promise HTTP) response, so we should check accordingly.
*/
if (xhr.responseJSON !== undefined &&
xhr.responseJSON.data && !xhr.responseJSON.data.conn_id) {
// if conn_id is null then this is maintenance db.
// so attempt connection connect without prompt.
self.init_connection(create_transaction);
this.init_connection(create_transaction);
} else if (xhr.data !== undefined &&
xhr.data.data && !xhr.data.data.conn_id) {
// if conn_id is null then this is maintenance db.
// so attempt connection connect without prompt.
this.init_connection(create_transaction);
} else {
self.warn_before_continue();
this.warn_before_continue();
}
},
warn_before_continue: function() {
@ -3730,7 +3738,7 @@ define('tools.querytool', [
// This function will fetch the sql query from the text box
// and execute the query.
execute: function(explain_prefix) {
execute: function(explain_prefix, shouldReconnect=false) {
var self = this,
sql = '';
@ -3747,7 +3755,7 @@ define('tools.querytool', [
sql = self.gridView.query_tool_obj.getValue();
const executeQuery = new ExecuteQuery.ExecuteQuery(this, pgAdmin.Browser.UserManagement);
executeQuery.execute(sql, explain_prefix);
executeQuery.execute(sql, explain_prefix, shouldReconnect);
},
/* This function is used to highlight the error line and

2
web/pgadmin/tools/sqleditor/tests/test_start_query_tool.py
View File

@ -42,6 +42,6 @@ class StartQueryTool(BaseTestGenerator):
self.assertEquals(response.status, '200 OK')
self.assertEquals(response.data, b'some result')
StartRunningQuery_execute_mock \
.assert_called_with('transformed sql', 1234, ANY)
.assert_called_with('transformed sql', 1234, ANY, False)
extract_sql_from_network_parameters_mock \
.assert_called_with(b'"some sql statement"', ANY, ANY)

11
web/pgadmin/tools/sqleditor/utils/start_running_query.py
View File

@ -36,7 +36,7 @@ class StartRunningQuery:
self.connection_id = str(random.randint(1, 9999999))
self.logger = logger
def execute(self, sql, trans_id, http_session):
def execute(self, sql, trans_id, http_session, connect=False):
session_obj = StartRunningQuery.retrieve_session_information(
http_session,
trans_id
@ -68,7 +68,7 @@ class StartRunningQuery:
return internal_server_error(errormsg=str(e))
# Connect to the Server if not connected.
if not conn.connected():
if connect and not conn.connected():
status, msg = conn.connect()
if not status:
self.logger.error(msg)
@ -108,7 +108,6 @@ class StartRunningQuery:
self.connection_id = conn_id
def __execute_query(self, conn, session_obj, sql, trans_id, trans_obj):
if conn.connected():
# on successful connection set the connection id to the
# transaction object
trans_obj.set_connection_id(self.connection_id)
@ -136,11 +135,7 @@ class StartRunningQuery:
if StartRunningQuery.is_rollback_statement_required(trans_obj,
conn):
conn.execute_void("ROLLBACK;")
else:
status = False
result = gettext(
'Not connected to server or connection with the server has '
'been closed.')
return result, status
@staticmethod

15
web/pgadmin/tools/sqleditor/utils/tests/test_start_running_query.py
View File

@ -21,6 +21,7 @@ else:
from unittest.mock import patch, MagicMock
get_driver_exception = Exception('get_driver exception')
get_connection_lost_exception = Exception('Unable to connect to server')
class StartRunningQueryTest(BaseTestGenerator):
@ -38,6 +39,7 @@ class StartRunningQueryTest(BaseTestGenerator):
),
pickle_load_return=None,
get_driver_exception=False,
get_connection_lost_exception=False,
manager_connection_exception=None,
is_connected_to_server=False,
@ -67,6 +69,7 @@ class StartRunningQueryTest(BaseTestGenerator):
),
pickle_load_return=None,
get_driver_exception=False,
get_connection_lost_exception=False,
manager_connection_exception=None,
is_connected_to_server=False,
@ -97,6 +100,7 @@ class StartRunningQueryTest(BaseTestGenerator):
),
pickle_load_return=None,
get_driver_exception=False,
get_connection_lost_exception=False,
manager_connection_exception=None,
is_connected_to_server=False,
@ -131,6 +135,7 @@ class StartRunningQueryTest(BaseTestGenerator):
pickle_load_return=MagicMock(conn_id=1,
update_fetched_row_cnt=MagicMock()),
get_driver_exception=True,
get_connection_lost_exception=False,
manager_connection_exception=None,
is_connected_to_server=False,
@ -161,6 +166,7 @@ class StartRunningQueryTest(BaseTestGenerator):
update_fetched_row_cnt=MagicMock()
),
get_driver_exception=False,
get_connection_lost_exception=False,
manager_connection_exception=ConnectionLost('1', '2', '3'),
is_connected_to_server=False,
@ -188,6 +194,7 @@ class StartRunningQueryTest(BaseTestGenerator):
update_fetched_row_cnt=MagicMock()
),
get_driver_exception=False,
get_connection_lost_exception=True,
manager_connection_exception=None,
is_connected_to_server=False,
@ -202,7 +209,7 @@ class StartRunningQueryTest(BaseTestGenerator):
expect_internal_server_error_called_with=dict(
errormsg='Unable to connect to server'
),
expected_logger_error='Unable to connect to server',
expected_logger_error=get_connection_lost_exception,
expect_execute_void_called_with='some sql',
)),
('When server is connected and start query async request, '
@ -223,6 +230,7 @@ class StartRunningQueryTest(BaseTestGenerator):
can_filter=lambda: True
),
get_driver_exception=False,
get_connection_lost_exception=False,
manager_connection_exception=None,
is_connected_to_server=True,
@ -265,6 +273,7 @@ class StartRunningQueryTest(BaseTestGenerator):
can_filter=lambda: True
),
get_driver_exception=False,
get_connection_lost_exception=False,
manager_connection_exception=None,
is_connected_to_server=True,
@ -307,6 +316,7 @@ class StartRunningQueryTest(BaseTestGenerator):
can_filter=lambda: True
),
get_driver_exception=False,
get_connection_lost_exception=False,
manager_connection_exception=None,
is_connected_to_server=True,
@ -349,6 +359,7 @@ class StartRunningQueryTest(BaseTestGenerator):
can_filter=lambda: True
),
get_driver_exception=False,
get_connection_lost_exception=False,
manager_connection_exception=None,
is_connected_to_server=True,
@ -431,6 +442,8 @@ class StartRunningQueryTest(BaseTestGenerator):
manager = self.__create_manager()
if self.get_driver_exception:
get_driver_mock.side_effect = get_driver_exception
elif self.get_connection_lost_exception:
get_driver_mock.side_effect = get_connection_lost_exception
else:
get_driver_mock.return_value = MagicMock(
connection_manager=lambda session_id: manager)

13
web/pgadmin/tools/user_management/static/js/user_management.js
View File

@ -130,9 +130,18 @@ define([
},
is_pga_login_required(xhr) {
return xhr.status == 401 && xhr.responseJSON &&
/* If responseJSON is undefined then it could be object of
* axios(Promise HTTP) response, so we should check accordingly.
*/
if (xhr.responseJSON === undefined && xhr.data !== undefined) {
return xhr.status === 401 && xhr.data &&
xhr.data.info &&
xhr.data.info === 'PGADMIN_LOGIN_REQUIRED';
}
return xhr.status === 401 && xhr.responseJSON &&
xhr.responseJSON.info &&
xhr.responseJSON.info == 'PGADMIN_LOGIN_REQUIRED';
xhr.responseJSON.info === 'PGADMIN_LOGIN_REQUIRED';
},
// Callback to draw pgAdmin4 login dialog.

1
web/pgadmin/utils/driver/psycopg2/server_manager.py
View File

@ -19,6 +19,7 @@ from flask_babel import gettext
from pgadmin.utils.crypto import decrypt
from .connection import Connection
from pgadmin.model import Server
from pgadmin.utils.exception import ConnectionLost
class ServerManager(object):

48
web/regression/javascript/sqleditor/execute_query_spec.js
View File

@ -42,6 +42,7 @@ describe('ExecuteQuery', () => {
'_init_polling_flags',
'save_state',
'init_transaction',
'handle_connection_lost',
]);
sqlEditorMock.transId = 123;
sqlEditorMock.rows_affected = 1000;
@ -49,6 +50,10 @@ describe('ExecuteQuery', () => {
isNewTransactionRequiredMock = spyOn(transaction, 'is_new_transaction_required');
});
afterEach(() => {
networkMock.restore();
});
describe('#poll', () => {
let cancelButtonSpy;
let response;
@ -62,9 +67,6 @@ describe('ExecuteQuery', () => {
executeQuery.delayedPoll = jasmine.createSpy('ExecuteQuery.delayedPoll');
});
afterEach(() => {
});
context('when SQLEditor is the query tool', () => {
beforeEach(() => {
sqlEditorMock.is_query_tool = true;
@ -569,8 +571,7 @@ describe('ExecuteQuery', () => {
describe('when cannot reach the Python Server', () => {
beforeEach(() => {
response = {readyState: 0};
networkMock.onGet('/sqleditor/query_tool/poll/123').reply(401, response);
networkMock.onGet('/sqleditor/query_tool/poll/123').reply(404, undefined);
executeQuery.poll();
});
@ -972,8 +973,7 @@ describe('ExecuteQuery', () => {
describe('when cannot reach the Python Server', () => {
beforeEach(() => {
response = {readyState: 0};
networkMock.onGet('/sqleditor/query_tool/poll/123').reply(401, response);
networkMock.onGet('/sqleditor/query_tool/poll/123').reply(404, undefined);
executeQuery.poll();
});
@ -1143,9 +1143,9 @@ describe('ExecuteQuery', () => {
describe('when HTTP return 200', () => {
describe('when backend informs that query started successfully', () => {
beforeEach(() => {
networkMock.onAny('/sqleditor/query_tool/start/123').reply(200, response);
networkMock.onPost('/sqleditor/query_tool/start/123?connect=1').reply(200, response);
pollSpy = spyOn(executeQuery, 'delayedPoll');
executeQuery.execute('some sql query', '');
executeQuery.execute('some sql query', '', true);
});
it('should changes the loading message to "Waiting for the query execution to complete"', (done) => {
@ -1310,10 +1310,7 @@ describe('ExecuteQuery', () => {
describe('when cannot reach the Python Server', () => {
beforeEach(() => {
response = {
readyState: 0,
};
networkMock.onAny('/sqleditor/query_tool/start/123').reply(500, response);
networkMock.onAny('/sqleditor/query_tool/start/123').reply(500, undefined);
executeQuery.execute('some sql query', '');
@ -1657,7 +1654,32 @@ describe('ExecuteQuery', () => {
}, 0);
});
});
describe('when connection to database is lost', () => {
beforeEach(() => {
isNewTransactionRequiredMock.and.returnValue(false);
response.info = 'CONNECTION_LOST';
networkMock.onAny('/sqleditor/query_tool/start/123').reply(503, response);
executeQuery.execute('some sql query', '');
});
it('saves state', () => {
setTimeout(() => {
expect(sqlEditorMock.save_state).toHaveBeenCalledWith(
'execute',
['']
);
}, 0);
});
it('calls handle_connection_lost', () => {
setTimeout(() => {
expect(sqlEditorMock.handle_connection_lost).toHaveBeenCalled();
}, 0);
});
});
});
});
});

14
web/regression/javascript/sqleditor/is_new_transaction_required_spec.js
View File

@ -19,7 +19,7 @@ describe('#is_new_transaction_required', () => {
});
describe('when status is 404', () => {
describe('when responseJSON is not present', () => {
describe('when data is not present', () => {
it('should return false', () => {
expect(is_new_transaction_required({
status: 404,
@ -27,22 +27,22 @@ describe('#is_new_transaction_required', () => {
});
});
describe('when responseJSON is present', () => {
describe('when info is not present inside responseJSON', () => {
describe('when data is present', () => {
describe('when info is not present inside data', () => {
it('should return false', () => {
expect(is_new_transaction_required({
status: 404,
responseJSON: {},
data: {},
})).toBeFalsy();
});
});
describe('when info is present inside responseJSON', () => {
describe('when info is present inside data', () => {
describe('when info value is not "DATAGRID_TRANSACTION_REQUIRED"', () => {
it('should return false', () => {
expect(is_new_transaction_required({
status: 404,
responseJSON: {
data: {
info: 'some information',
},
})).toBe(false);
@ -53,7 +53,7 @@ describe('#is_new_transaction_required', () => {
it('should return false', () => {
expect(is_new_transaction_required({
status: 404,
responseJSON: {
data: {
info: 'DATAGRID_TRANSACTION_REQUIRED',
},
})).toBe(true);