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Add option to show device code to user directly #60

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Add option to show device code to user directly #60

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1 change: 1 addition & 0 deletions debian/pam_aad.conf
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
"id": "{{group_id}}"
},
"smtp_server": "{{smtp_server}}",
"email": "true",
"tenant": {
"name": "{{organization}}.onmicrosoft.com",
"address": "{{organization_email_address}}"
Expand Down
25 changes: 20 additions & 5 deletions pam_aad.c
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,8 @@
#define SUBJECT "Your one-time passcode for signing in via Azure Active Directory"
#define TTW 5 /* time to wait in seconds */
#define USER_AGENT "azure_authenticator_pam/1.0"
#define USER_PROMPT "\n\nEnter the code at https://aka.ms/devicelogin."
#define USER_PROMPT "Enter the code at https://aka.ms/devicelogin."
#define USER_PROMPT_ENTER "Enter the code at https://aka.ms/devicelogin, then press enter."

#ifndef _AAD_EXPORT
#define STATIC static
Expand Down Expand Up @@ -378,9 +379,10 @@ STATIC int notify_user(const char *to_addr, const char *from_addr, const char *m
return (int) res;
}

STATIC int azure_authenticator(const char *user)
STATIC int azure_authenticator(pam_handle_t * pamh, const char *user)
{
jwt_t *jwt;
bool enable_email = false;
bool debug = DEBUG;
const char *client_id, *group_id, *tenant,
*domain, *u_code, *d_code, *ab_token, *tenant_addr, *smtp_server;
Expand Down Expand Up @@ -453,6 +455,10 @@ STATIC int azure_authenticator(const char *user)
fprintf(stderr, "error with Domain in JSON\n");
return ret;
}
if (json_object_get(config, "email"))
if(strcmp(json_string_value(json_object_get(config, "email")),"true") == 0)
enable_email = true;


sds user_addr = sdsnew(user);
user_addr = sdscat(user_addr, "@");
Expand All @@ -467,8 +473,17 @@ STATIC int azure_authenticator(const char *user)

sds prompt = sdsnew(CODE_PROMPT);
prompt = sdscat(prompt, u_code);
prompt = sdscat(prompt, USER_PROMPT);
notify_user(user_addr, tenant_addr, prompt, smtp_server, debug);
prompt = sdscat(prompt, "\n");

if(enable_email){
prompt = sdscat(prompt, USER_PROMPT);
prompt = sdscat(prompt, "\n");
notify_user(user_addr, tenant_addr, prompt, smtp_server, debug);
} else {
prompt = sdscat(prompt, USER_PROMPT_ENTER);
prompt = sdscat(prompt, "\n");
(void) pam_prompt(pamh, PAM_PROMPT_ECHO_OFF, NULL, prompt);
}

auth_bearer_request(&data, client_id, tenant, d_code, json_data,
debug);
Expand Down Expand Up @@ -502,7 +517,7 @@ PAM_EXTERN int pam_sm_authenticate(pam_handle_t * pamh, int flags,
return ret;
}

if (azure_authenticator(user) == 0)
if (azure_authenticator(pamh, user) == 0)
return PAM_SUCCESS;

return ret;
Expand Down