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feat: support CAS with organizations and applications (beego#621)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,204 @@ | ||
| // Copyright 2022 The Casdoor Authors. All Rights Reserved. | ||
| // | ||
| // 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 controllers | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net/http" | ||
| "net/url" | ||
| "strings" | ||
|
|
||
| "github.com/casdoor/casdoor/object" | ||
| ) | ||
|
|
||
| const ( | ||
| InvalidRequest string = "INVALID_REQUEST" | ||
| InvalidTicketSpec string = "INVALID_TICKET_SPEC" | ||
| UnauthorizedServiceProxy string = "UNAUTHORIZED_SERVICE_PROXY" | ||
| InvalidProxyCallback string = "INVALID_PROXY_CALLBACK" | ||
| InvalidTicket string = "INVALID_TICKET" | ||
| InvalidService string = "INVALID_SERVICE" | ||
| InteralError string = "INTERNAL_ERROR" | ||
| UnauthorizedService string = "UNAUTHORIZED_SERVICE" | ||
| ) | ||
|
|
||
| func (c *RootController) CasValidate() { | ||
| ticket := c.Input().Get("ticket") | ||
| service := c.Input().Get("service") | ||
| c.Ctx.Output.Header("Content-Type", "text/html; charset=utf-8") | ||
| if service == "" || ticket == "" { | ||
| c.Ctx.Output.Body([]byte("no\n")) | ||
| return | ||
| } | ||
| if ok, response, issuedService := object.GetCasTokenByTicket(ticket); ok { | ||
| //check whether service is the one for which we previously issued token | ||
| if issuedService == service { | ||
| c.Ctx.Output.Body([]byte(fmt.Sprintf("yes\n%s\n", response.User))) | ||
| return | ||
| } | ||
|
|
||
| } | ||
| //token not found | ||
| c.Ctx.Output.Body([]byte("no\n")) | ||
| } | ||
|
|
||
| func (c *RootController) CasServiceAndProxyValidate() { | ||
| ticket := c.Input().Get("ticket") | ||
| format := c.Input().Get("format") | ||
| service := c.Input().Get("service") | ||
| pgtUrl := c.Input().Get("pgtUrl") | ||
|
|
||
| serviceResponse := object.CasServiceResponse{ | ||
| Xmlns: "http://www.yale.edu/tp/cas", | ||
| } | ||
|
|
||
| //check whether all required parameters are met | ||
| if service == "" || ticket == "" { | ||
| c.sendCasAuthenticationResponseErr(InvalidRequest, "service and ticket must exist", format) | ||
| return | ||
| } | ||
|
|
||
| //find the token | ||
| if ok, response, issuedService := object.GetCasTokenByTicket(ticket); ok { | ||
|
|
||
| //check whether service is the one for which we previously issued token | ||
| if strings.HasPrefix(service, issuedService) { | ||
| serviceResponse.Success = response | ||
| } else { | ||
| //service not match | ||
| c.sendCasAuthenticationResponseErr(InvalidService, fmt.Sprintf("service %s and %s does not match", service, issuedService), format) | ||
| return | ||
| } | ||
| } else { | ||
| //token not found | ||
| c.sendCasAuthenticationResponseErr(InvalidTicket, fmt.Sprintf("Ticket %s not recognized", ticket), format) | ||
| return | ||
| } | ||
|
|
||
| if pgtUrl != "" && serviceResponse.Failure == nil { | ||
| //that means we are in proxy web flow | ||
| pgt := object.StoreCasTokenForPgt(serviceResponse.Success, service) | ||
| pgtiou := serviceResponse.Success.ProxyGrantingTicket | ||
| //todo: check whether it is https | ||
| pgtUrlObj, err := url.Parse(pgtUrl) | ||
| if pgtUrlObj.Scheme != "https" { | ||
| c.sendCasAuthenticationResponseErr(InvalidProxyCallback, "callback is not https", format) | ||
| return | ||
| } | ||
| //make a request to pgturl passing pgt and pgtiou | ||
| if err != nil { | ||
| c.sendCasAuthenticationResponseErr(InteralError, err.Error(), format) | ||
| return | ||
| } | ||
| param := pgtUrlObj.Query() | ||
| param.Add("pgtId", pgt) | ||
| param.Add("pgtIou", pgtiou) | ||
| pgtUrlObj.RawQuery = param.Encode() | ||
|
|
||
| request, err := http.NewRequest("GET", pgtUrlObj.String(), nil) | ||
| if err != nil { | ||
| c.sendCasAuthenticationResponseErr(InteralError, err.Error(), format) | ||
| return | ||
| } | ||
|
|
||
| resp, err := http.DefaultClient.Do(request) | ||
| if err != nil || !(resp.StatusCode >= 200 && resp.StatusCode < 400) { | ||
| //failed to send request | ||
| c.sendCasAuthenticationResponseErr(InvalidProxyCallback, err.Error(), format) | ||
| return | ||
| } | ||
| } | ||
| // everything is ok, send the response | ||
| if format == "json" { | ||
| c.Data["json"] = serviceResponse | ||
| c.ServeJSON() | ||
| } else { | ||
| c.Data["xml"] = serviceResponse | ||
| c.ServeXML() | ||
| } | ||
| } | ||
|
|
||
| func (c *RootController) CasProxy() { | ||
| pgt := c.Input().Get("pgt") | ||
| targetService := c.Input().Get("targetService") | ||
| format := c.Input().Get("format") | ||
| if pgt == "" || targetService == "" { | ||
| c.sendCasProxyResponseErr(InvalidRequest, "pgt and targetService must exist", format) | ||
| return | ||
| } | ||
|
|
||
| ok, authenticationSuccess, issuedService := object.GetCasTokenByPgt(pgt) | ||
| if !ok { | ||
| c.sendCasProxyResponseErr(UnauthorizedService, "service not authorized", format) | ||
| return | ||
| } | ||
|
|
||
| newAuthenticationSuccess := authenticationSuccess.DeepCopy() | ||
| if newAuthenticationSuccess.Proxies == nil { | ||
| newAuthenticationSuccess.Proxies = &object.CasProxies{} | ||
| } | ||
| newAuthenticationSuccess.Proxies.Proxies = append(newAuthenticationSuccess.Proxies.Proxies, issuedService) | ||
| proxyTicket := object.StoreCasTokenForProxyTicket(&newAuthenticationSuccess, targetService) | ||
|
|
||
| serviceResponse := object.CasServiceResponse{ | ||
| Xmlns: "http://www.yale.edu/tp/cas", | ||
| ProxySuccess: &object.CasProxySuccess{ | ||
| ProxyTicket: proxyTicket, | ||
| }, | ||
| } | ||
|
|
||
| if format == "json" { | ||
| c.Data["json"] = serviceResponse | ||
| c.ServeJSON() | ||
| } else { | ||
| c.Data["xml"] = serviceResponse | ||
| c.ServeXML() | ||
| } | ||
|
|
||
| } | ||
| func (c *RootController) sendCasProxyResponseErr(code, msg, format string) { | ||
| serviceResponse := object.CasServiceResponse{ | ||
| Xmlns: "http://www.yale.edu/tp/cas", | ||
| ProxyFailure: &object.CasProxyFailure{ | ||
| Code: code, | ||
| Message: msg, | ||
| }, | ||
| } | ||
| if format == "json" { | ||
| c.Data["json"] = serviceResponse | ||
| c.ServeJSON() | ||
| } else { | ||
| c.Data["xml"] = serviceResponse | ||
| c.ServeXML() | ||
| } | ||
| } | ||
|
|
||
| func (c *RootController) sendCasAuthenticationResponseErr(code, msg, format string) { | ||
| serviceResponse := object.CasServiceResponse{ | ||
| Xmlns: "http://www.yale.edu/tp/cas", | ||
| Failure: &object.CasAuthenticationFailure{ | ||
| Code: code, | ||
| Message: msg, | ||
| }, | ||
| } | ||
|
|
||
| if format == "json" { | ||
| c.Data["json"] = serviceResponse | ||
| c.ServeJSON() | ||
| } else { | ||
| c.Data["xml"] = serviceResponse | ||
| c.ServeXML() | ||
| } | ||
| } |
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