aboutsummaryrefslogtreecommitdiffstats
path: root/include/local-def.h
blob: 22a3608b5b3e37c65ebd8788e1ece2d03170184e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
/*
   alsajson-gw -- provide a REST/HTTP interface to ALSA-Mixer

   Copyright (C) 2015, Fulup Ar Foll

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/
#ifndef LOCAL_DEF_H
#define LOCAL_DEF_H

#ifndef _GNU_SOURCE
  #define _GNU_SOURCE
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <termios.h>
#include <sys/ioctl.h>
#include <sys/signal.h>
#include <sys/types.h>
#include <time.h>
#include <json.h>
#include <microhttpd.h>
#include <magic.h>
#include <setjmp.h>
#include <signal.h>
#include <uuid/uuid.h>




#define AJQ_VERSION "0.1"

/* other definitions --------------------------------------------------- */

// Note: because of a bug in libmagic MAGIC_DB NULL should not be used for default
#define MAGIC_DB "/usr/share/misc/magic.mgc"
#define OPA_INDEX "index.html"
#define MAX_ALIAS 10           // max number of aliases
#define COOKIE_NAME   "AJB_session"


#define DEFLT_CNTX_TIMEOUT  3600   // default Client Connection Timeout
#define DEFLT_API_TIMEOUT   0      // default Plugin API Timeout [0=NoLimit for Debug Only]
#define DEFLT_API_TIMEOUT   0      // default Plugin API Timeout
#define DEFLT_CACHE_TIMEOUT 100000 // default Static File Chache [Client Side Cache 100000~=1day]
#define DEFLT_AUTH_TOKEN    NULL   // expect for debug should == NULL
#define DEFLT_HTTP_TIMEOUT  15     // Max MibMicroHttp timeout

typedef int BOOL;
#ifndef FALSE
  #define FALSE 0
#endif
#ifndef TRUE
  #define TRUE 1
#endif

#define PUBLIC
#define STATIC    static
#define FAILED    -1

#define AUDIO_BUFFER "/tmp/buf"

extern int verbose;  // this is the only global variable

// Plugin Type
typedef enum  {AFB_PLUGIN_JSON=123456789, AFB_PLUGIN_JSCRIPT=987654321,  AFB_PLUGIN_RAW=987123546} AFB_pluginE;

// prebuild json error are constructed in config.c
typedef enum  { AFB_FALSE, AFB_TRUE, AFB_FATAL, AFB_FAIL, AFB_WARNING, AFB_EMPTY, AFB_SUCCESS, AFB_DONE, AFB_UNAUTH} AFB_error;

extern char *ERROR_LABEL[];
#define ERROR_LABEL_DEF {"false", "true","fatal", "fail", "warning", "empty", "success"}

#define BANNER "<html><head><title>Application Framework Binder</title></head><body>Application Framework </body></html>"
#define JSON_CONTENT  "application/json"
#define FORM_CONTENT "multipart/form-data"
#define MAX_POST_SIZE  4096   // maximum size for POST data
#define CTX_NBCLIENTS   10   // allow a default of 10 authenticated clients


typedef json_object* (*AFB_apiCB)();

// Error code are requested through function to manage json usage count
typedef struct {
  int   level;
  char* label;
  json_object *json;
} AFB_errorT;

typedef enum  {AFB_POST_NONE=0, AFB_POST_JSON, AFB_POST_FORM} AFB_PostType;

// Post Upload File Handle
typedef struct {
   int   fd; 
   char *path; 
   int  errcode;
   json_object* jresp;
} AFB_PostCtx;

typedef  struct {
    int  len;   // post element size
    char *data; // post data in raw format
    AFB_PostType type; // Json type
} AFB_PostRequest;
  
// Post handler
typedef struct {
  void*  ctx;               // Application context
  int    len;               // current len for post
  int    uid;               // post uid for debug
  AFB_PostType type;        // JSON or FORM
  AFB_apiCB  completeCB;    // callback when post is completed
  char   *private;          // use internally to keep track or partial buffer
  struct MHD_PostProcessor *pp; // iterator handle
} AFB_PostHandle;

typedef struct {
    enum MHD_ValueKind kind; // kind type of the value
    const char *key;         // key 0-terminated key for the value
    const char *filename;    // filename of the uploaded file, NULL if not known
    const char *mimetype;    // content_type mime-type of the data, NULL if not known
    const char *encoding;    // transfer_encoding encoding of the data, NULL if not known
    const char *data;        // data pointer to size bytes of data at the specified offset
    uint64_t   offset;       // offset of data in the overall value
    size_t     len;          // number of bytes in data available
} AFB_PostItem;

typedef struct {
  char  path[512];
  int   fd;
} AFB_staticfile;

typedef struct {
  char  *url;
  char  *path;
  size_t len;
} AFB_aliasdir;

// Command line structure hold cli --command + help text
typedef struct {
  int  val;        // command number within application
  int  has_arg;    // command number within application
  char *name;      // command as used in --xxxx cli
  char *help;      // help text
} AFB_options;

// main config structure
typedef struct {
  char *logname;           // logfile path for info & error log
  char *console;           // console device name (can be a file or a tty)
  int  localhostOnly;
  int   httpdPort;
  char *smack;             // smack label
  char *plugins;           // list of requested plugins
  char *rootdir;           // base dir for httpd file download
  char *rootbase;          // Angular HTML5 base URL
  char *rootapi;           // Base URL for REST APIs
  char *pidfile;           // where to store pid when running background
  char *sessiondir;        // where to store mixer session files
  char *configfile;        // where to store configuration on gateway exit
  char *setuid;            // downgrade uid to username
  char *token;             // initial authentication token [default NULL no session]
  int  cacheTimeout;
  int  apiTimeout;
  int  cntxTimeout;        // Client Session Context timeout
  AFB_aliasdir *aliasdir;  // alias mapping for icons,apps,...
} AFB_config;

typedef struct {
  int  len;        // command number within application
  json_object *jtype;
} AFB_privateApi;


typedef struct {
     char    *msg;
     size_t  len;
} AFB_redirect_msg;

// Enum for Session/Token/Authentication middleware
typedef enum  {AFB_SESSION_NONE, AFB_SESSION_CREATE, AFB_SESSION_CLOSE, AFB_SESSION_RENEW, AFB_SESSION_CHECK} AFB_sessionE;

// API definition
typedef struct {
  char *name;
  AFB_sessionE session;
  AFB_apiCB callback;
  char *info;
  AFB_privateApi *private;
} AFB_restapi;

// Plugin definition
typedef struct {
  AFB_pluginE type;  
  char *info;
  char *prefix;
  size_t prefixlen;
  json_object *jtype;
  AFB_restapi *apis;
  void *handle;
  int  ctxCount;
  AFB_apiCB freeCtxCB;  // callback to free application context [null for standard free]
} AFB_plugin;


// User Client Session Context
typedef struct {
  int  cid;             // index 0 if global
  char uuid[37];        // long term authentication of remote client
  char token[37];       // short term authentication of remote client
  time_t timeStamp;     // last time token was refresh
  int   restfull;       // client does not use cookie
  void *ctx;            // application specific context
  AFB_plugin *plugin;   // provide callback and easy access to plugin
} AFB_clientCtx;

// MHD_lookup_connection_value(connection, MHD_GET_ARGUMENT_KIND, "value");
typedef struct {
  const char *url;
  char *plugin;
  char *api;
  AFB_PostRequest *post;
  json_object *jresp;
  AFB_clientCtx *client;      // needed because libmicrohttp cannot create an empty response
  int   restfull;             // request is resfull [uuid token provided]
  int   errcode;              // http error code
  sigjmp_buf checkPluginCall; // context save for timeout set/longjmp
  AFB_config *config;         // plugin may need access to config
  struct MHD_Connection *connection;
  AFB_plugin **plugins;
} AFB_request;


typedef struct {
  AFB_config  *config;   // pointer to current config
  // List of commands to execute
  int  killPrevious;
  int  background;        // run in backround mode
  int  foreground;        // run in forground mode
  int  configsave;        // Save config on disk on start
  char *cacheTimeout;     // http require timeout to be a string
  void *httpd;            // anonymous structure for httpd handler
  int  fakemod;           // respond to GET/POST request without interacting with sndboard
  int  forceexit;         // when autoconfig from script force exit before starting server
  AFB_plugin **plugins;   // pointer to REST/API plugins 
  int pluginCount;        // loaded plugins count
  magic_t  magic;         // Mime type file magic lib
  sigjmp_buf restartCkpt; // context save for restart set/longjmp
} AFB_session;



#include "proto-def.h"

#endif /* LOCAL_DEF_H */