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processing: verify postgresql access and request credentials if necessary (fixes #12137)

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This commit is contained in:
Juergen E. Fischer 2015-02-12 21:14:18 +01:00
parent e96b204b09
commit f540cd16a2
1 changed files with 21 additions and 6 deletions
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27
python/plugins/processing/algs/gdal/OgrAlgorithm.py
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@ -27,6 +27,7 @@ __revision__ = '$Format:%H$'
import re
import os
import psycopg2
from qgis.core import QgsDataSourceURI, QgsCredentials
@ -54,14 +55,28 @@ class OgrAlgorithm(GdalAlgorithm):
# key='gid' estimatedmetadata=true srid=4326 type=MULTIPOLYGON
# table="t4" (geom) sql=
dsUri = QgsDataSourceURI(layer.dataProvider().dataSourceUri())
connInfo = dsUri.connectionInfo()
(success, user, passwd ) = QgsCredentials.instance().get(connInfo, None, None)
if success:
QgsCredentials.instance().put(connInfo, user, passwd)
ogrstr = ("PG:dbname='%s' host='%s' port='%s' user='%s' password='%s'"
% (dsUri.database(), dsUri.host(), dsUri.port(), user, passwd))
conninfo = dsUri.connectionInfo()
conn = None
while not conn:
try:
conn = psycopg2.connect(dsUri.connectionInfo())
except psycopg2.OperationalError, e:
(ok, user, passwd ) = QgsCredentials.instance().get(conninfo, dsUri.username(), dsUri.password())
if not ok:
break
dsUri.setUsername( user )
dsUri.setPassword( passwd )
if not conn:
raise RuntimeError('Could not connect to PostgreSQL database - check connection info')
QgsCredentials.instance().put(conninfo, user, passwd)
ogrstr = "PG:%s" % dsUri.connectionInfo()
else:
ogrstr = unicode(layer.source()).split("|")[0]
return '"' + ogrstr + '"'
def ogrLayerName(self, uri):