rating.go

Copyright 2021, 2022 Red Hat, Inc

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

package
server
import
(
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
httputils
"github.com/RedHatInsights/insights-operator-utils/http"
"github.com/RedHatInsights/insights-operator-utils/responses"
utypes
"github.com/RedHatInsights/insights-operator-utils/types"
ira_server
"github.com/RedHatInsights/insights-results-aggregator/server"
"github.com/RedHatInsights/insights-results-smart-proxy/services"
ctypes
"github.com/RedHatInsights/insights-results-types"
"github.com/rs/zerolog/log"
)

postRating handles the POST method for Rating endpoint

func
(
server
*
HTTPServer
)
postRating
(
writer
http
.
ResponseWriter
,
request
*
http
.
Request
)
{
log
.
Debug
(
)
.
Msg
(
"postRating"
)
orgID
,
err
:=
server
.
GetCurrentOrgID
(
request
)
if
err
!=
nil
{
handleServerError
(
writer
,
err
)
return
}
log
.
Debug
(
)
.
Uint32
(
"org_id"
,
uint32
(
orgID
)
)
.
Msg
(
"Extracted user and org"
)
rating
,
successful
:=
server
.
postRatingToAggregator
(
orgID
,
request
,
writer
)
if
!
successful
{
log
.
Error
(
)
.
Msg
(
"Unable to get response from aggregator"
)

All errors already handled

	
}
bodyContent
,
err
:=
json
.
Marshal
(
rating
)
if
err
!=
nil
{
log
.
Error
(
)
.
Err
(
err
)
.
Msg
(
"Unable to unmarshall the response from aggregator"
)
handleServerError
(
writer
,
err
)
}
err
=
responses
.
Send
(
http
.
StatusOK
,
writer
,
bodyContent
)
if
err
!=
nil
{
log
.
Error
(
)
.
Err
(
err
)
.
Msg
(
responseDataError
)
}
}

postRatingToAggregator asks aggregator for update the rating for a given rule by the current user/org

func
(
server
HTTPServer
)
postRatingToAggregator
(
orgID
ctypes
.
OrgID
,
request
*
http
.
Request
,
writer
http
.
ResponseWriter
,
)
(
*
ctypes
.
RuleRating
,
bool
)
{
aggregatorURL
:=
httputils
.
MakeURLToEndpoint
(
server
.
ServicesConfig
.
AggregatorBaseEndpoint
,
ira_server
.
Rating
,
orgID
,
)
body
,
err
:=
io
.
ReadAll
(
request
.
Body
)
if
err
!=
nil
{
handleServerError
(
writer
,
err
)
return
nil
,
false
}

nosec G107

nolint:bodyclose // TODO: remove once the bodyclose library fixes this bug

	
aggregatorResp
,
err
:=
http
.
Post
(
aggregatorURL
,
JSONContentType
,
bytes
.
NewBuffer
(
body
)
)
if
err
!=
nil
{
handleServerError
(
writer
,
err
)
return
nil
,
false
}
defer
services
.
CloseResponseBody
(
aggregatorResp
)
var
aggregatorResponse
struct
{
Rating
ctypes
.
RuleRating
`json:"ratings"`
Status
string
`json:"status"`
}
err
=
json
.
NewDecoder
(
aggregatorResp
.
Body
)
.
Decode
(
&
aggregatorResponse
)
if
err
!=
nil
{
log
.
Error
(
)
.
Err
(
err
)
.
Msg
(
"Unable to understand aggregator's response"
)
handleServerError
(
writer
,
err
)
}
return
&
aggregatorResponse
.
Rating
,
true
}

getRatingForRecommendation retrieves user rating for recommendation from aggregator

func
(
server
HTTPServer
)
getRatingForRecommendation
(
orgID
ctypes
.
OrgID
,
ruleID
ctypes
.
RuleID
,
)
(
ruleRating
ctypes
.
RuleRating
,
err
error
,
)
{
ruleRating
.
Rule
=
string
(
ruleID
)
ruleRating
.
Rating
=
0
var
aggregatorResponse
struct
{
Rating
ctypes
.
RuleRating
`json:"rating"`
Status
string
`json:"status"`
}
aggregatorURL
:=
httputils
.
MakeURLToEndpoint
(
server
.
ServicesConfig
.
AggregatorBaseEndpoint
,
ira_server
.
GetRating
,
ruleID
,
orgID
,
)

nosec G107

nolint:bodyclose // TODO: remove once the bodyclose library fixes this bug

	
aggregatorResp
,
err
:=
http
.
Get
(
aggregatorURL
)
if
err
!=
nil
{
log
.
Error
(
)
.
Err
(
err
)
.
Str
(
urlStr
,
aggregatorURL
)
.
Msg
(
"problem getting URL from aggregator"
)
return
}
defer
services
.
CloseResponseBody
(
aggregatorResp
)
responseBytes
,
err
:=
io
.
ReadAll
(
aggregatorResp
.
Body
)
if
err
!=
nil
{
log
.
Error
(
)
.
Err
(
err
)
.
Str
(
urlStr
,
aggregatorURL
)
.
Msg
(
"problem reading response from URL from aggregator"
)
return
}
if
aggregatorResp
.
StatusCode
==
http
.
StatusNotFound
{
log
.
Debug
(
)
.
Msgf
(
"rule rating for rule %v not found"
,
ruleID
)
return
ruleRating
,
&
utypes
.
ItemNotFoundError
{
}
}
if
aggregatorResp
.
StatusCode
!=
http
.
StatusOK
{
err
=
fmt
.
Errorf
(
"problem retrieving rating from aggregator for rule %v. Status code: %v"
,
ruleID
,
aggregatorResp
.
StatusCode
,
)
log
.
Error
(
)
.
Err
(
err
)
.
Send
(
)
return
}
err
=
json
.
Unmarshal
(
responseBytes
,
&
aggregatorResponse
)
if
err
!=
nil
{
log
.
Error
(
)
.
Err
(
err
)
.
Msg
(
"problem unmarshalling aggregator response"
)
return
}
return
aggregatorResponse
.
Rating
,
nil
}