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Adjust codebase to work with plain or gzipped request body payloads #648

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Adjust codebase to work with plain or gzipped request body payloads #648

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53 changes: 43 additions & 10 deletions Server/Python/src/dbs/web/DBSWriterModel.py
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Original file line number Diff line number Diff line change
Expand Up @@ -18,10 +18,43 @@

import traceback

# import for gzip decompression utility
import gzip
try:
import cStringIO as StringIO
except ImportError: # python3
import io
except:
import StringIO
# CMSMonitoring modules
from CMSMonitoring.NATS import NATSManager


def decompress(body):
"Decompress the request body"
if sys.version.startswith('3.'):
zbuf = io.BytesIO()
else:
zbuf = StringIO.StringIO()
zbuf.write(body)
zbuf.seek(0)
zfile = gzip.GzipFile(mode='rb', fileobj=zbuf)
data = zfile.read()
zfile.close()
return data

def read_body():
"""
Provides uniform way to read either plain payload body
or gzipped one
"""
raw = request.body.read(int(cherrypy.request.headers['Content-Length']))
if request.headers['Content-Encoding'] == 'gzip':
raw = decompress(raw)
return raw
body = request.body.read()
return body

class DBSWriterModel(DBSReaderModel):
"""
DBS3 Server API Documentation
Expand Down Expand Up @@ -98,7 +131,7 @@ def insertPrimaryDataset(self):

"""
try :
body = request.body.read()
body = read_body()
indata = cjson.decode(body)
indata = validateJSONInputNoCopy("primds", indata)
indata.update({"creation_date": dbsUtils().getTime(), "create_by": dbsUtils().getCreateBy() })
Expand Down Expand Up @@ -130,7 +163,7 @@ def insertOutputConfig(self):

"""
try:
body = request.body.read()
body = read_body()
indata = cjson.decode(body)
indata = validateJSONInputNoCopy("dataset_conf_list", indata)
indata.update({"creation_date": dbsUtils().getTime(),
Expand Down Expand Up @@ -181,7 +214,7 @@ def insertAcquisitionEra(self):

"""
try:
body = request.body.read()
body = read_body()
indata = cjson.decode(body)
indata = validateJSONInputNoCopy("acquisition_era", indata)
indata.update({"start_date": indata.get("start_date", dbsUtils().getTime()),\
Expand Down Expand Up @@ -210,7 +243,7 @@ def insertProcessingEra(self):

"""
try:
body = request.body.read()
body = read_body()
indata = cjson.decode(body)
indata = validateJSONInputNoCopy('processing_era', indata)
indata.update({"creation_date": indata.get("creation_date", dbsUtils().getTime()), \
Expand Down Expand Up @@ -247,7 +280,7 @@ def insertDataset(self):

"""
try:
body = request.body.read()
body = read_body()
indata = cjson.decode(body)
indata = validateJSONInputNoCopy('dataset', indata)
indata.update({"creation_date": dbsUtils().getTime(),
Expand Down Expand Up @@ -287,7 +320,7 @@ def insertBulkBlock(self):

"""
try:
body = request.body.read()
body = read_body()
indata = cjson.decode(body)
if (indata.get("file_parent_list", []) and indata.get("dataset_parent_list", [])):
dbsExceptionHandler("dbsException-invalid-input2", "insertBulkBlock: dataset and file parentages cannot be in the input at the same time",
Expand Down Expand Up @@ -332,7 +365,7 @@ def insertFileParents(self):

"""
try:
body = request.body.read()
body = read_body()
indata = cjson.decode(body)
indata = validateJSONInputNoCopy("file_parent", indata)
self.dbsFile.insertFileParents(indata)
Expand Down Expand Up @@ -365,7 +398,7 @@ def insertBlock(self):

"""
try:
body = request.body.read()
body = read_body()
indata = cjson.decode(body)
indata = validateJSONInputNoCopy("block", indata)
self.dbsBlock.insertBlock(indata)
Expand Down Expand Up @@ -405,7 +438,7 @@ def insertFile(self, qInserts=False):
"""
if qInserts in (False, 'False'): qInserts=False
try:
body = request.body.read()
body = read_body()
indata = cjson.decode(body)["files"]
if not isinstance(indata, (list, dict)):
dbsExceptionHandler("dbsException-invalid-input", "Invalid Input DataType", self.logger.exception, \
Expand Down Expand Up @@ -563,7 +596,7 @@ def insertDataTier(self):
conn = self.dbi.connection()
tran = conn.begin()

body = request.body.read()
body = read_body()
indata = cjson.decode(body)

indata = validateJSONInputNoCopy("dataTier", indata)
Expand Down