1/*
2 * lws-minimal-secure-streams-alexa
3 *
4 * This file is made available under the Creative Commons CC0 1.0
5 * Universal Public Domain Dedication.
6 */
7
8#include <libwebsockets.h>
9#include <string.h>
10#include <signal.h>
11
12extern int
13avs_example_start(struct lws_context *context);
14
15static int interrupted;
16static lws_state_notify_link_t nl;
17
18#if !defined(LWS_SS_USE_SSPC)
19
20/*
21 * If not using the proxy, we need to bring our own policy
22 */
23
24static const char * const default_ss_policy =
25	"{"
26	  "\"release\":"			"\"01234567\","
27	  "\"product\":"			"\"myproduct\","
28	  "\"schema-version\":"			"1,"
29	  "\"retry\": ["	/* named backoff / retry strategies */
30		"{\"default\": {"
31			"\"backoff\": ["	 "1000,"
32						 "2000,"
33						 "3000,"
34						 "5000,"
35						"10000"
36				"],"
37			"\"conceal\":"		"5,"
38			"\"jitterpc\":"		"20,"
39			"\"svalidping\":"	"60,"
40			"\"svalidhup\":"	"64"
41		"}}"
42	  "],"
43	  "\"certs\": [" /* named individual certificates in BASE64 DER */
44		"{\"digicert_global_root_g2\": \"" /* api.amazon.com 2038-01 */
45	"MIIDjjCCAnagAwIBAgIQAzrx5qcRqaC7KGSxHQn65TANBgkqhkiG9w0BAQsFADBh"
46	"MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3"
47	"d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBH"
48	"MjAeFw0xMzA4MDExMjAwMDBaFw0zODAxMTUxMjAwMDBaMGExCzAJBgNVBAYTAlVT"
49	"MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5j"
50	"b20xIDAeBgNVBAMTF0RpZ2lDZXJ0IEdsb2JhbCBSb290IEcyMIIBIjANBgkqhkiG"
51	"9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuzfNNNx7a8myaJCtSnX/RrohCgiN9RlUyfuI"
52	"2/Ou8jqJkTx65qsGGmvPrC3oXgkkRLpimn7Wo6h+4FR1IAWsULecYxpsMNzaHxmx"
53	"1x7e/dfgy5SDN67sH0NO3Xss0r0upS/kqbitOtSZpLYl6ZtrAGCSYP9PIUkY92eQ"
54	"q2EGnI/yuum06ZIya7XzV+hdG82MHauVBJVJ8zUtluNJbd134/tJS7SsVQepj5Wz"
55	"tCO7TG1F8PapspUwtP1MVYwnSlcUfIKdzXOS0xZKBgyMUNGPHgm+F6HmIcr9g+UQ"
56	"vIOlCsRnKPZzFBQ9RnbDhxSJITRNrw9FDKZJobq7nMWxM4MphQIDAQABo0IwQDAP"
57	"BgNVHRMBAf8EBTADAQH/MA4GA1UdDwEB/wQEAwIBhjAdBgNVHQ4EFgQUTiJUIBiV"
58	"5uNu5g/6+rkS7QYXjzkwDQYJKoZIhvcNAQELBQADggEBAGBnKJRvDkhj6zHd6mcY"
59	"1Yl9PMWLSn/pvtsrF9+wX3N3KjITOYFnQoQj8kVnNeyIv/iPsGEMNKSuIEyExtv4"
60	"NeF22d+mQrvHRAiGfzZ0JFrabA0UWTW98kndth/Jsw1HKj2ZL7tcu7XUIOGZX1NG"
61	"Fdtom/DzMNU+MeKNhJ7jitralj41E6Vf8PlwUHBHQRFXGU7Aj64GxJUTFy8bJZ91"
62	"8rGOmaFvE7FBcf6IKshPECBV1/MUReXgRPTqh5Uykw7+U0b6LJ3/iyK5S9kJRaTe"
63	"pLiaWN0bfVKfjllDiIGknibVb63dDcY3fe0Dkhvld1927jyNxF1WW6LZZm6zNTfl"
64	"MrY="
65		"\"},"
66		"{\"digicert_global_ca_g2\": \"" /* api.amazon.com 2028-08 */
67	"MIIEizCCA3OgAwIBAgIQDI7gyQ1qiRWIBAYe4kH5rzANBgkqhkiG9w0BAQsFADBh"
68	"MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3"
69	"d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBH"
70	"MjAeFw0xMzA4MDExMjAwMDBaFw0yODA4MDExMjAwMDBaMEQxCzAJBgNVBAYTAlVT"
71	"MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxHjAcBgNVBAMTFURpZ2lDZXJ0IEdsb2Jh"
72	"bCBDQSBHMjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANNIfL7zBYZd"
73	"W9UvhU5L4IatFaxhz1uvPmoKR/uadpFgC4przc/cV35gmAvkVNlW7SHMArZagV+X"
74	"au4CLyMnuG3UsOcGAngLH1ypmTb+u6wbBfpXzYEQQGfWMItYNdSWYb7QjHqXnxr5"
75	"IuYUL6nG6AEfq/gmD6yOTSwyOR2Bm40cZbIc22GoiS9g5+vCShjEbyrpEJIJ7RfR"
76	"ACvmfe8EiRROM6GyD5eHn7OgzS+8LOy4g2gxPR/VSpAQGQuBldYpdlH5NnbQtwl6"
77	"OErXb4y/E3w57bqukPyV93t4CTZedJMeJfD/1K2uaGvG/w/VNfFVbkhJ+Pi474j4"
78	"8V4Rd6rfArMCAwEAAaOCAVowggFWMBIGA1UdEwEB/wQIMAYBAf8CAQAwDgYDVR0P"
79	"AQH/BAQDAgGGMDQGCCsGAQUFBwEBBCgwJjAkBggrBgEFBQcwAYYYaHR0cDovL29j"
80	"c3AuZGlnaWNlcnQuY29tMHsGA1UdHwR0MHIwN6A1oDOGMWh0dHA6Ly9jcmw0LmRp"
81	"Z2ljZXJ0LmNvbS9EaWdpQ2VydEdsb2JhbFJvb3RHMi5jcmwwN6A1oDOGMWh0dHA6"
82	"Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEdsb2JhbFJvb3RHMi5jcmwwPQYD"
83	"VR0gBDYwNDAyBgRVHSAAMCowKAYIKwYBBQUHAgEWHGh0dHBzOi8vd3d3LmRpZ2lj"
84	"ZXJ0LmNvbS9DUFMwHQYDVR0OBBYEFCRuKy3QapJRUSVpAaqaR6aJ50AgMB8GA1Ud"
85	"IwQYMBaAFE4iVCAYlebjbuYP+vq5Eu0GF485MA0GCSqGSIb3DQEBCwUAA4IBAQAL"
86	"OYSR+ZfrqoGvhOlaOJL84mxZvzbIRacxAxHhBsCsMsdaVSnaT0AC9aHesO3ewPj2"
87	"dZ12uYf+QYB6z13jAMZbAuabeGLJ3LhimnftiQjXS8X9Q9ViIyfEBFltcT8jW+rZ"
88	"8uckJ2/0lYDblizkVIvP6hnZf1WZUXoOLRg9eFhSvGNoVwvdRLNXSmDmyHBwW4co"
89	"atc7TlJFGa8kBpJIERqLrqwYElesA8u49L3KJg6nwd3jM+/AVTANlVlOnAM2BvjA"
90	"jxSZnE0qnsHhfTuvcqdFuhOWKU4Z0BqYBvQ3lBetoxi6PrABDJXWKTUgNX31EGDk"
91	"92hiHuwZ4STyhxGs6QiA"
92		"\"},"
93		"{\"amazon_root_ca_1\": \""
94	"MIIDQTCCAimgAwIBAgITBmyfz5m/jAo54vB4ikPmljZbyjANBgkqhkiG9w0BAQsF"
95	"ADA5MQswCQYDVQQGEwJVUzEPMA0GA1UEChMGQW1hem9uMRkwFwYDVQQDExBBbWF6"
96	"b24gUm9vdCBDQSAxMB4XDTE1MDUyNjAwMDAwMFoXDTM4MDExNzAwMDAwMFowOTEL"
97	"MAkGA1UEBhMCVVMxDzANBgNVBAoTBkFtYXpvbjEZMBcGA1UEAxMQQW1hem9uIFJv"
98	"b3QgQ0EgMTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALJ4gHHKeNXj"
99	"ca9HgFB0fW7Y14h29Jlo91ghYPl0hAEvrAIthtOgQ3pOsqTQNroBvo3bSMgHFzZM"
100	"9O6II8c+6zf1tRn4SWiw3te5djgdYZ6k/oI2peVKVuRF4fn9tBb6dNqcmzU5L/qw"
101	"IFAGbHrQgLKm+a/sRxmPUDgH3KKHOVj4utWp+UhnMJbulHheb4mjUcAwhmahRWa6"
102	"VOujw5H5SNz/0egwLX0tdHA114gk957EWW67c4cX8jJGKLhD+rcdqsq08p8kDi1L"
103	"93FcXmn/6pUCyziKrlA4b9v7LWIbxcceVOF34GfID5yHI9Y/QCB/IIDEgEw+OyQm"
104	"jgSubJrIqg0CAwEAAaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMC"
105	"AYYwHQYDVR0OBBYEFIQYzIU07LwMlJQuCFmcx7IQTgoIMA0GCSqGSIb3DQEBCwUA"
106	"A4IBAQCY8jdaQZChGsV2USggNiMOruYou6r4lK5IpDB/G/wkjUu0yKGX9rbxenDI"
107	"U5PMCCjjmCXPI6T53iHTfIUJrU6adTrCC2qJeHZERxhlbI1Bjjt/msv0tadQ1wUs"
108	"N+gDS63pYaACbvXy8MWy7Vu33PqUXHeeE6V/Uq2V8viTO96LXFvKWlJbYK8U90vv"
109	"o/ufQJVtMVT8QtPHRh8jrdkPSHCa2XV4cdFyQzR1bldZwgJcJmApzyMZFo6IQ6XU"
110	"5MsI+yMRQ+hDKXJioaldXgjUkK642M4UwtBV8ob2xJNDd2ZhwLnoQdeXeGADbkpy"
111	"rqXRfboQnoZsG4q5WTP468SQvvG5"
112		"\"},"
113		"{\"starfield_services_root_ca\": \""
114	"MIID7zCCAtegAwIBAgIBADANBgkqhkiG9w0BAQsFADCBmDELMAkGA1UEBhMCVVMx"
115	"EDAOBgNVBAgTB0FyaXpvbmExEzARBgNVBAcTClNjb3R0c2RhbGUxJTAjBgNVBAoT"
116	"HFN0YXJmaWVsZCBUZWNobm9sb2dpZXMsIEluYy4xOzA5BgNVBAMTMlN0YXJmaWVs"
117	"ZCBTZXJ2aWNlcyBSb290IENlcnRpZmljYXRlIEF1dGhvcml0eSAtIEcyMB4XDTA5"
118	"MDkwMTAwMDAwMFoXDTM3MTIzMTIzNTk1OVowgZgxCzAJBgNVBAYTAlVTMRAwDgYD"
119	"VQQIEwdBcml6b25hMRMwEQYDVQQHEwpTY290dHNkYWxlMSUwIwYDVQQKExxTdGFy"
120	"ZmllbGQgVGVjaG5vbG9naWVzLCBJbmMuMTswOQYDVQQDEzJTdGFyZmllbGQgU2Vy"
121	"dmljZXMgUm9vdCBDZXJ0aWZpY2F0ZSBBdXRob3JpdHkgLSBHMjCCASIwDQYJKoZI"
122	"hvcNAQEBBQADggEPADCCAQoCggEBANUMOsQq+U7i9b4Zl1+OiFOxHz/Lz58gE20p"
123	"OsgPfTz3a3Y4Y9k2YKibXlwAgLIvWX/2h/klQ4bnaRtSmpDhcePYLQ1Ob/bISdm2"
124	"8xpWriu2dBTrz/sm4xq6HZYuajtYlIlHVv8loJNwU4PahHQUw2eeBGg6345AWh1K"
125	"Ts9DkTvnVtYAcMtS7nt9rjrnvDH5RfbCYM8TWQIrgMw0R9+53pBlbQLPLJGmpufe"
126	"hRhJfGZOozptqbXuNC66DQO4M99H67FrjSXZm86B0UVGMpZwh94CDklDhbZsc7tk"
127	"6mFBrMnUVN+HL8cisibMn1lUaJ/8viovxFUcdUBgF4UCVTmLfwUCAwEAAaNCMEAw"
128	"DwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMCAQYwHQYDVR0OBBYEFJxfAN+q"
129	"AdcwKziIorhtSpzyEZGDMA0GCSqGSIb3DQEBCwUAA4IBAQBLNqaEd2ndOxmfZyMI"
130	"bw5hyf2E3F/YNoHN2BtBLZ9g3ccaaNnRbobhiCPPE95Dz+I0swSdHynVv/heyNXB"
131	"ve6SbzJ08pGCL72CQnqtKrcgfU28elUSwhXqvfdqlS5sdJ/PHLTyxQGjhdByPq1z"
132	"qwubdQxtRbeOlKyWN7Wg0I8VRw7j6IPdj/3vQQF3zCepYoUz8jcI73HPdwbeyBkd"
133	"iEDPfUYd/x7H4c7/I9vG+o1VTqkC50cRRj70/b17KSa7qWFiNyi2LSr2EIZkyXCn"
134	"0q23KXB56jzaYyWf/Wi3MOxw+3WKt21gZ7IeyLnp2KhvAotnDU0mV3HaIPzBSlCN"
135	"sSi6"
136		"\"},"
137		"{\"starfield_class_2_ca\": \""
138	"MIIEDzCCAvegAwIBAgIBADANBgkqhkiG9w0BAQUFADBoMQswCQYDVQQGEwJVUzEl"
139	"MCMGA1UEChMcU3RhcmZpZWxkIFRlY2hub2xvZ2llcywgSW5jLjEyMDAGA1UECxMp"
140	"U3RhcmZpZWxkIENsYXNzIDIgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwHhcNMDQw"
141	"NjI5MTczOTE2WhcNMzQwNjI5MTczOTE2WjBoMQswCQYDVQQGEwJVUzElMCMGA1UE"
142	"ChMcU3RhcmZpZWxkIFRlY2hub2xvZ2llcywgSW5jLjEyMDAGA1UECxMpU3RhcmZp"
143	"ZWxkIENsYXNzIDIgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwggEgMA0GCSqGSIb3"
144	"DQEBAQUAA4IBDQAwggEIAoIBAQC3Msj+6XGmBIWtDBFk385N78gDGIc/oav7PKaf"
145	"8MOh2tTYbitTkPskpD6E8J7oX+zlJ0T1KKY/e97gKvDIr1MvnsoFAZMej2YcOadN"
146	"+lq2cwQlZut3f+dZxkqZJRRU6ybH838Z1TBwj6+wRir/resp7defqgSHo9T5iaU0"
147	"X9tDkYI22WY8sbi5gv2cOj4QyDvvBmVmepsZGD3/cVE8MC5fvj13c7JdBmzDI1aa"
148	"K4UmkhynArPkPw2vCHmCuDY96pzTNbO8acr1zJ3o/WSNF4Azbl5KXZnJHoe0nRrA"
149	"1W4TNSNe35tfPe/W93bC6j67eA0cQmdrBNj41tpvi/JEoAGrAgEDo4HFMIHCMB0G"
150	"A1UdDgQWBBS/X7fRzt0fhvRbVazc1xDCDqmI5zCBkgYDVR0jBIGKMIGHgBS/X7fR"
151	"zt0fhvRbVazc1xDCDqmI56FspGowaDELMAkGA1UEBhMCVVMxJTAjBgNVBAoTHFN0"
152	"YXJmaWVsZCBUZWNobm9sb2dpZXMsIEluYy4xMjAwBgNVBAsTKVN0YXJmaWVsZCBD"
153	"bGFzcyAyIENlcnRpZmljYXRpb24gQXV0aG9yaXR5ggEAMAwGA1UdEwQFMAMBAf8w"
154	"DQYJKoZIhvcNAQEFBQADggEBAAWdP4id0ckaVaGsafPzWdqbAYcaT1epoXkJKtv3"
155	"L7IezMdeatiDh6GX70k1PncGQVhiv45YuApnP+yz3SFmH8lU+nLMPUxA2IGvd56D"
156	"eruix/U0F47ZEUD0/CwqTRV/p2JdLiXTAAsgGh1o+Re49L2L7ShZ3U0WixeDyLJl"
157	"xy16paq8U4Zt3VekyvggQQto8PT7dL5WXXp59fkdheMtlb71cZBDzI0fmgAKhynp"
158	"VSJYACPq4xJDKVtHCN2MQWplBqjlIapBtJUhlbl90TSrE9atvNziPTnNvT51cKEY"
159	"WQPJIrSPnNVeKtelttQKbfi3QBFGmh95DmK/D5fs4C8fF5Q="
160		"\"}"
161	  "],"
162	  "\"trust_stores\": [" /* named cert chains */
163		"{"  /* chain for alexa.na.gateway.devices.a2z.com */
164			"\"name\": \"avs_via_starfield\","
165			"\"stack\": ["
166				"\"starfield_class_2_ca\","
167				"\"starfield_services_root_ca\""
168			"]"
169		"},"
170		"{" /* chain for api.amazon.com */
171			"\"name\": \"api_amazon_com\","
172			"\"stack\": ["
173				"\"digicert_global_ca_g2\","
174				"\"digicert_global_root_g2\""
175			"]"
176		"}"
177	  "],"
178	  "\"auth\": [" /* available auth type bindings */
179		"{"
180		  "\"name\":"		"\"lwa\","
181		  "\"streamtype\":"	"\"api_amazon_com_lwa\","
182		  "\"blob\":"		"0"
183		"}"
184	  "],"
185	  "\"s\": [" /* the supported stream types */
186		"{\"api_amazon_com_lwa\": {"
187			"\"endpoint\":"			"\"api.amazon.com\","
188			"\"port\":"			"443,"
189			"\"protocol\":"			"\"h1\","
190			"\"http_method\":"		"\"POST\","
191			"\"http_url\":"			"\"auth/o2/token\","
192			"\"opportunistic\":"		"true,"
193			"\"tls\":"			"true,"
194			"\"h2q_oflow_txcr\":"		"true,"
195			"\"http_www_form_urlencoded\":"	"true,"
196			"\"http_no_content_length\":"	"true,"
197			"\"retry\":"			"\"default\","
198			"\"tls_trust_store\":"		"\"api_amazon_com\""
199		"}},"
200		/*
201		 * long poll event listener
202		 */
203		"{\"avs_event\": {"
204			"\"endpoint\":"			"\"alexa.na.gateway.devices.a2z.com\","
205			"\"port\":"			"443,"
206			"\"protocol\":"			"\"h2\","
207			"\"http_method\":"		"\"GET\","
208			"\"http_url\":"			"\"v20160207/directives\","
209			"\"use_auth\":"			"\"lwa\","
210			"\"h2q_oflow_txcr\":"		"true,"
211			"\"http_auth_header\":"		"\"authorization:\","
212			"\"http_auth_preamble\":"	"\"Bearer \","
213			"\"http_multipart_ss_in\":"	"true,"
214			"\"nailed_up\":"		"true,"
215			"\"long_poll\":"		"true,"
216			"\"retry\":"			"\"default\","
217			"\"tls\":"			"true,"
218			"\"tls_trust_store\":"		"\"avs_via_starfield\""
219		"}},"
220		/*
221		 * Utterance metadata and audio send and reply processing.
222		 *
223		 * "Rideshare" and http_multipart_mime means these both go out
224		 * in one multipart http transaction.
225		 */
226		"{\"avs_metadata\": {"
227			"\"endpoint\":"			"\"alexa.na.gateway.devices.a2z.com\","
228			"\"port\":"			"443,"
229			"\"protocol\":"			"\"h2\","
230			"\"http_method\":"		"\"POST\","
231			"\"http_url\":"			"\"v20160207/events\","
232			"\"use_auth\":"			"\"lwa\","
233			"\"opportunistic\":"		"true,"
234			"\"h2q_oflow_txcr\":"		"true,"
235			"\"http_auth_header\":"		"\"authorization:\","
236			"\"http_auth_preamble\":"	"\"Bearer \","
237			"\"http_multipart_name\":"	"\"metadata\","
238			"\"http_mime_content_type\":"	"\"application/json; charset=UTF-8\","
239			"\"http_no_content_length\":"	"true,"
240			"\"http_multipart_ss_in\":"	"true,"
241			"\"rideshare\":"		"\"avs_audio\","
242			"\"retry\":"			"\"default\","
243			"\"tls\":"			"true,"
244			"\"tls_trust_store\":"		"\"avs_via_starfield\""
245		"}},"
246		"{\"avs_audio\": {"
247			"\"endpoint\":"			"\"alexa.na.gateway.devices.a2z.com\","
248			"\"port\":"			"443,"
249			"\"protocol\":"			"\"h2\","
250			"\"http_method\":"		"\"POST\","
251			"\"http_url\":"			"\"v20160207/events\","
252			"\"use_auth\":"			"\"lwa\","
253			"\"tls\":"			"true,"
254			"\"h2q_oflow_txcr\":"		"true,"
255			"\"http_auth_header\":"		"\"authorization:\","
256			"\"http_auth_preamble\":"	"\"Bearer \","
257			"\"http_multipart_ss_in\":"	"true,"
258			"\"http_multipart_name\":"	"\"audio\","
259			"\"http_mime_content_type\":"	"\"application/octet-stream\","
260			"\"http_no_content_length\":"	"true,"
261			"\"retry\":"			"\"default\","
262			"\"tls_trust_store\":"		"\"avs_via_starfield\""
263		"}}"
264	  "]"
265	"}"
266;
267
268#endif
269
270static const char *canned_root_token_payload =
271	"grant_type=refresh_token"
272	"&refresh_token=Atzr|IwEBIJedGXjDqsU_vMxykqOMg"
273	"SHfYe3CPcedueWEMWSDMaDnEmiW8RlR1Kns7Cb4B-TOSnqp7ifVsY4BMY2B8tpHfO39XP"
274	"zfu9HapGjTR458IyHX44FE71pWJkGZ79uVBpljP4sazJuk8XS3Oe_yLnm_DIO6fU1nU3Y"
275	"0flYmsOiOAQE_gRk_pdlmEtHnpMA-9rLw3mkY5L89Ty9kUygBsiFaYatouROhbsTn8-jW"
276	"k1zZLUDpT6ICtBXSnrCIg0pUbZevPFhTwdXd6eX-u4rq0W-XaDvPWFO7au-iPb4Zk5eZE"
277	"iX6sissYrtNmuEXc2uHu7MnQO1hHCaTdIO2CANVumf-PHSD8xseamyh04sLV5JgFzY45S"
278	"KvKMajiUZuLkMokOx86rjC2Hdkx5DO7G-dbG1ufBDG-N79pFMSs7Ck5pc283IdLoJkCQc"
279	"AGvTX8o8I29QqkcGou-9TKhOJmpX8As94T61ok0UqqEKPJ7RhfQHHYdCtsdwxgvfVr9qI"
280	"xL_hDCcTho8opCVX-6QhJHl6SQFlTw13"
281	"&client_id="
282		"amzn1.application-oa2-client.4823334c434b4190a2b5a42c07938a2d";
283
284/*
285 * Register the root token, and make the sticky AVS connection at the
286 * appropriate times during system startup
287 */
288
289static int
290app_system_state_nf(lws_state_manager_t *mgr, lws_state_notify_link_t *link,
291		    int current, int target)
292{
293	struct lws_context *context = lws_system_context_from_system_mgr(mgr);
294	lws_system_blob_t *ab = lws_system_get_blob(context,
295				LWS_SYSBLOB_TYPE_AUTH, 1 /* AUTH_IDX_ROOT */);
296	size_t size;
297
298	/*
299	 * For the things we care about, let's notice if we are trying to get
300	 * past them when we haven't solved them yet, and make the system
301	 * state wait while we trigger the dependent action.
302	 */
303	switch (target) {
304	case LWS_SYSTATE_REGISTERED:
305		size = lws_system_blob_get_size(ab);
306		if (size)
307			break;
308
309		/* let's register our canned root token so auth can use it */
310		lws_system_blob_direct_set(ab,
311				(const uint8_t *)canned_root_token_payload,
312				strlen(canned_root_token_payload));
313		break;
314	case LWS_SYSTATE_OPERATIONAL:
315		if (current == target)
316			avs_example_start(context);
317		break;
318	case LWS_SYSTATE_POLICY_INVALID:
319		/*
320		 * This is a NOP since we used direct set... but in a real
321		 * system this could easily change to be done on the heap, then
322		 * this would be important
323		 */
324		lws_system_blob_destroy(lws_system_get_blob(context,
325					LWS_SYSBLOB_TYPE_AUTH,
326					1 /* AUTH_IDX_ROOT */));
327		break;
328	}
329
330	return 0;
331}
332
333static void
334sigint_handler(int sig)
335{
336	interrupted = 1;
337}
338
339static lws_state_notify_link_t * const app_notifier_list[] = {
340	&nl, NULL
341};
342
343extern struct lws_protocols protocol_audio_test;
344static const struct lws_protocols *protocols[] = {
345	&protocol_audio_test,
346#if defined(LWS_SS_USE_SSPC)
347	lws_sspc_protocols,
348#endif
349	NULL
350};
351
352int main(int argc, const char **argv)
353{
354	struct lws_context_creation_info info;
355	struct lws_context *context;
356	int n = 0;
357
358	signal(SIGINT, sigint_handler);
359	memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
360	lws_cmdline_option_handle_builtin(argc, argv, &info);
361
362	lwsl_user("LWS secure streams - Alexa voice test [-d<verb>]\n");
363
364	info.fd_limit_per_thread = 1 + 6 + 1;
365#if !defined(LWS_SS_USE_SSPC)
366	info.options = LWS_SERVER_OPTION_EXPLICIT_VHOSTS |
367		       LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
368	info.pss_policies_json = default_ss_policy;
369#else
370	{
371		const char *p;
372
373		/* connect to ssproxy via UDS by default, else via
374		 * tcp connection to this port */
375		if ((p = lws_cmdline_option(argc, argv, "-p")))
376			info.ss_proxy_port = atoi(p);
377
378		/* UDS "proxy.ss.lws" in abstract namespace, else this socket
379		 * path; when -p given this can specify the network interface
380		 * to bind to */
381		if ((p = lws_cmdline_option(argc, argv, "-i")))
382			info.ss_proxy_bind = p;
383
384		/* if -p given, -a specifies the proxy address to connect to */
385		if ((p = lws_cmdline_option(argc, argv, "-a")))
386			info.ss_proxy_address = p;
387	}
388#endif
389	info.port = CONTEXT_PORT_NO_LISTEN;
390	info.pprotocols = protocols;
391
392	/* integrate us with lws system state management when context created */
393	nl.name = "app";
394	nl.notify_cb = app_system_state_nf;
395	info.register_notifier_list = app_notifier_list;
396
397	context = lws_create_context(&info);
398	if (!context) {
399		lwsl_err("lws init failed\n");
400		return 1;
401	}
402
403	/* create an explicit vhost so the sound protocol is initialized */
404
405	info.vhost_name = "asound";
406	if (!lws_create_vhost(context, &info)) {
407		lwsl_err("lws init failed\n");
408		goto bail;
409	}
410
411	/* the event loop */
412
413	while (n >= 0 && !interrupted)
414		n = lws_service(context, 0);
415
416bail:
417	lws_context_destroy(context);
418	lwsl_user("Completed\n");
419
420	return 0;
421}
422