75 lines
2.0 KiB
Go
75 lines
2.0 KiB
Go
package providers
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import (
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"io/ioutil"
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"net/http"
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"net/url"
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"github.com/pusher/oauth2_proxy/logger"
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"github.com/pusher/oauth2_proxy/pkg/requests"
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)
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// stripToken is a helper function to obfuscate "access_token"
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// query parameters
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func stripToken(endpoint string) string {
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return stripParam("access_token", endpoint)
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}
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// stripParam generalizes the obfuscation of a particular
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// query parameter - typically 'access_token' or 'client_secret'
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// The parameter's second half is replaced by '...' and returned
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// as part of the encoded query parameters.
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// If the target parameter isn't found, the endpoint is returned
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// unmodified.
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func stripParam(param, endpoint string) string {
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u, err := url.Parse(endpoint)
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if err != nil {
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logger.Printf("error attempting to strip %s: %s", param, err)
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return endpoint
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}
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if u.RawQuery != "" {
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values, err := url.ParseQuery(u.RawQuery)
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if err != nil {
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logger.Printf("error attempting to strip %s: %s", param, err)
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return u.String()
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}
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if val := values.Get(param); val != "" {
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values.Set(param, val[:(len(val)/2)]+"...")
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u.RawQuery = values.Encode()
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return u.String()
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}
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}
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return endpoint
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}
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// validateToken returns true if token is valid
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func validateToken(p Provider, accessToken string, header http.Header) bool {
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if accessToken == "" || p.Data().ValidateURL == nil {
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return false
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}
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endpoint := p.Data().ValidateURL.String()
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if len(header) == 0 {
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params := url.Values{"access_token": {accessToken}}
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endpoint = endpoint + "?" + params.Encode()
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}
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resp, err := requests.RequestUnparsedResponse(endpoint, header)
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if err != nil {
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logger.Printf("GET %s", stripToken(endpoint))
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logger.Printf("token validation request failed: %s", err)
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return false
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}
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body, _ := ioutil.ReadAll(resp.Body)
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resp.Body.Close()
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logger.Printf("%d GET %s %s", resp.StatusCode, stripToken(endpoint), body)
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if resp.StatusCode == 200 {
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return true
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}
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logger.Printf("token validation request failed: status %d - %s", resp.StatusCode, body)
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return false
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}
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