forked from TykTechnologies/tyk
/
policy.go
186 lines (151 loc) · 4.4 KB
/
policy.go
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package gateway
import (
"encoding/json"
"errors"
"io/ioutil"
"net/http"
"os"
"github.com/TykTechnologies/tyk/rpc"
"github.com/sirupsen/logrus"
"github.com/TykTechnologies/tyk/user"
)
type DBAccessDefinition struct {
APIName string `json:"apiname"`
APIID string `json:"apiid"`
Versions []string `json:"versions"`
AllowedURLs []user.AccessSpec `bson:"allowed_urls" json:"allowed_urls"` // mapped string MUST be a valid regex
Limit *user.APILimit `json:"limit"`
}
func (d *DBAccessDefinition) ToRegularAD() user.AccessDefinition {
return user.AccessDefinition{
APIName: d.APIName,
APIID: d.APIID,
Versions: d.Versions,
AllowedURLs: d.AllowedURLs,
Limit: d.Limit,
}
}
type DBPolicy struct {
user.Policy
AccessRights map[string]DBAccessDefinition `bson:"access_rights" json:"access_rights"`
}
func (d *DBPolicy) ToRegularPolicy() user.Policy {
policy := d.Policy
policy.AccessRights = make(map[string]user.AccessDefinition)
for k, v := range d.AccessRights {
policy.AccessRights[k] = v.ToRegularAD()
}
return policy
}
func LoadPoliciesFromFile(filePath string) map[string]user.Policy {
f, err := os.Open(filePath)
if err != nil {
log.WithFields(logrus.Fields{
"prefix": "policy",
}).Error("Couldn't open policy file: ", err)
return nil
}
defer f.Close()
var policies map[string]user.Policy
if err := json.NewDecoder(f).Decode(&policies); err != nil {
log.WithFields(logrus.Fields{
"prefix": "policy",
}).Error("Couldn't unmarshal policies: ", err)
}
return policies
}
// LoadPoliciesFromDashboard will connect and download Policies from a Tyk Dashboard instance.
func LoadPoliciesFromDashboard(endpoint, secret string, allowExplicit bool) map[string]user.Policy {
// Get the definitions
newRequest, err := http.NewRequest("GET", endpoint, nil)
if err != nil {
log.Error("Failed to create request: ", err)
}
newRequest.Header.Set("authorization", secret)
newRequest.Header.Set("x-tyk-nodeid", GetNodeID())
newRequest.Header.Set("x-tyk-nonce", ServiceNonce)
log.WithFields(logrus.Fields{
"prefix": "policy",
}).Info("Mutex lock acquired... calling")
c := initialiseClient()
log.WithFields(logrus.Fields{
"prefix": "policy",
}).Info("Calling dashboard service for policy list")
resp, err := c.Do(newRequest)
if err != nil {
log.Error("Policy request failed: ", err)
return nil
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusForbidden {
body, _ := ioutil.ReadAll(resp.Body)
log.Error("Policy request login failure, Response was: ", string(body))
reLogin()
return nil
}
// Extract Policies
var list struct {
Message []DBPolicy
Nonce string
}
if err := json.NewDecoder(resp.Body).Decode(&list); err != nil {
log.Error("Failed to decode policy body: ", err)
return nil
}
ServiceNonce = list.Nonce
log.Debug("Loading Policies Finished: Nonce Set: ", ServiceNonce)
policies := make(map[string]user.Policy, len(list.Message))
log.WithFields(logrus.Fields{
"prefix": "policy",
}).Info("Processing policy list")
for _, p := range list.Message {
id := p.MID.Hex()
if allowExplicit && p.ID != "" {
id = p.ID
}
p.ID = id
if _, ok := policies[id]; ok {
log.WithFields(logrus.Fields{
"prefix": "policy",
"policyID": p.ID,
"OrgID": p.OrgID,
}).Warning("--> Skipping policy, new item has a duplicate ID!")
continue
}
policies[id] = p.ToRegularPolicy()
}
return policies
}
func parsePoliciesFromRPC(list string) (map[string]user.Policy, error) {
var dbPolicyList []user.Policy
if err := json.Unmarshal([]byte(list), &dbPolicyList); err != nil {
return nil, err
}
policies := make(map[string]user.Policy, len(dbPolicyList))
for _, p := range dbPolicyList {
p.ID = p.MID.Hex()
policies[p.MID.Hex()] = p
}
return policies, nil
}
func LoadPoliciesFromRPC(orgId string) (map[string]user.Policy, error) {
if rpc.IsEmergencyMode() {
return LoadPoliciesFromRPCBackup()
}
store := &RPCStorageHandler{}
if !store.Connect() {
return nil, errors.New("Policies backup: Failed connecting to database")
}
rpcPolicies := store.GetPolicies(orgId)
policies, err := parsePoliciesFromRPC(rpcPolicies)
if err != nil {
log.WithFields(logrus.Fields{
"prefix": "policy",
}).Error("Failed decode: ", err, rpcPolicies)
return nil, err
}
if err := saveRPCPoliciesBackup(rpcPolicies); err != nil {
return nil, err
}
return policies, nil
}