conf2ael.c

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/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (C) 2007, Digium, Inc.
 *
 * Steve Murphy <[email protected]>
 *
 * See http://www.asterisk.org for more information about
 * the Asterisk project. Please do not directly contact
 * any of the maintainers of this project for assistance;
 * the project provides a web site, mailing lists and IRC
 * channels for your use.
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License Version 2. See the LICENSE file
 * at the top of the source tree.
 */

/*
 *
 * Reverse compile extensions.conf code into prototype AEL code
 *
 */

/*** MODULEINFO
 <depend>res_ael_share</depend>
 <support_level>deprecated</support_level>
 ***/

#define ASTMM_LIBC ASTMM_IGNORE
#include "asterisk.h"

#include "asterisk/paths.h" /* CONFIG_DIR */
#include <locale.h>
#include <ctype.h>
#if !defined(SOLARIS) && !defined(__CYGWIN__)
#include <err.h>
#endif
#include <regex.h>

#include "asterisk.h"
#include "asterisk/pbx.h"
#include "asterisk/ast_expr.h"
#include "asterisk/channel.h"
#include "asterisk/chanvars.h"
#include "asterisk/module.h"
#include "asterisk/app.h"
#include "asterisk/config.h"
#include "asterisk/options.h"
#include "asterisk/callerid.h"
#include "asterisk/lock.h"
#include "asterisk/hashtab.h"
#include "asterisk/ael_structs.h"
#include "asterisk/devicestate.h"
#include "asterisk/stringfields.h"
#include "asterisk/pval.h"
#include "asterisk/extconf.h"

const char *ast_config_AST_CONFIG_DIR = "/etc/asterisk"; /* placeholder */

void get_start_stop(unsigned int *word, int bitsperword, int totalbits, int *start, int *end);
int all_bits_set(unsigned int *word, int bitsperword, int totalbits);
extern char *days[];
extern char *months[];

char *config = "extensions.conf";

/*
static char *registrar = "conf2ael";
static char userscontext[AST_MAX_EXTENSION] = "default";
static int static_config = 0;
static int write_protect_config = 1;
static int autofallthrough_config = 0;
static int clearglobalvars_config = 0;
char ast_config_AST_SYSTEM_NAME[20] = ""; */

/* static AST_RWLIST_HEAD_STATIC(acf_root, ast_custom_function); */
//extern char ast_config_AST_CONFIG_DIR[PATH_MAX];
int option_debug = 0;
int option_verbose = 0;

int ast_add_profile(const char *x, uint64_t scale) { return 0;}
/* Our own version of ast_log, since the expr parser uses it. -- stolen from utils/check_expr.c */
void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...) __attribute__((format(printf,5,6)));

void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...)
{
 va_list vars;
 va_start(vars,fmt);

 printf("LOG: lev:%d file:%s line:%d func: %s ",
 level, file, line, function);
 vprintf(fmt, vars);
 fflush(stdout);
 va_end(vars);
}

/* stolen from pbx.c */
struct ast_context;
struct ast_app;
#ifdef LOW_MEMORY
#define EXT_DATA_SIZE 256
#else
#define EXT_DATA_SIZE 8192
#endif

#define SWITCH_DATA_LENGTH 256

#define VAR_BUF_SIZE 4096

#define VAR_NORMAL 1
#define VAR_SOFTTRAN 2
#define VAR_HARDTRAN 3

#define BACKGROUND_SKIP (1 << 0)
#define BACKGROUND_NOANSWER (1 << 1)
#define BACKGROUND_MATCHEXTEN (1 << 2)
#define BACKGROUND_PLAYBACK (1 << 3)

/*!
 \brief ast_exten: An extension
 The dialplan is saved as a linked list with each context
 having it's own linked list of extensions - one item per
 priority.
*/
struct ast_exten {
 char *exten; /*!< Extension name */
 int matchcid; /*!< Match caller id ? */
 const char *cidmatch; /*!< Caller id to match for this extension */
 int priority; /*!< Priority */
 const char *label; /*!< Label */
 struct ast_context *parent; /*!< The context this extension belongs to */
 const char *app; /*!< Application to execute */
 struct ast_app *cached_app; /*!< Cached location of application */
 void *data; /*!< Data to use (arguments) */
 void (*datad)(void *); /*!< Data destructor */
 struct ast_exten *peer; /*!< Next higher priority with our extension */
 const char *registrar; /*!< Registrar */
 struct ast_exten *next; /*!< Extension with a greater ID */
 char stuff[0];
};


/*! \brief ast_include: include= support in extensions.conf */
struct ast_include {
 const char *name;
 const char *rname; /*!< Context to include */
 const char *registrar; /*!< Registrar */
 int hastime; /*!< If time construct exists */
 struct ast_timing timing; /*!< time construct */
 struct ast_include *next; /*!< Link them together */
 char stuff[0];
};

/*! \brief ast_sw: Switch statement in extensions.conf */
struct ast_sw {
 char *name;
 const char *registrar; /*!< Registrar */
 char *data; /*!< Data load */
 int eval;
 AST_LIST_ENTRY(ast_sw) list;
 char *tmpdata;
 char stuff[0];
};

/*! \brief ast_ignorepat: Ignore patterns in dial plan */
struct ast_ignorepat {
 const char *registrar;
 struct ast_ignorepat *next;
 const char pattern[0];
};

/*! \brief ast_context: An extension context */
struct ast_context {
 ast_rwlock_t lock; /*!< A lock to prevent multiple threads from clobbering the context */
 struct ast_exten *root; /*!< The root of the list of extensions */
 struct ast_context *next; /*!< Link them together */
 struct ast_include *includes; /*!< Include other contexts */
 struct ast_ignorepat *ignorepats; /*!< Patterns for which to continue playing dialtone */
 const char *registrar; /*!< Registrar */
 AST_LIST_HEAD_NOLOCK(, ast_sw) alts; /*!< Alternative switches */
 ast_mutex_t macrolock; /*!< A lock to implement "exclusive" macros - held whilst a call is executing in the macro */
 char name[0]; /*!< Name of the context */
};


/*! \brief ast_app: A registered application */
struct ast_app {
 int (*execute)(struct ast_channel *chan, void *data);
 const char *synopsis; /*!< Synopsis text for 'show applications' */
 const char *description; /*!< Description (help text) for 'show application &lt;name&gt;' */
 AST_RWLIST_ENTRY(ast_app) list; /*!< Next app in list */
 struct module *module; /*!< Module this app belongs to */
 char name[0]; /*!< Name of the application */
};

/*! \brief ast_state_cb: An extension state notify register item */
struct ast_state_cb {
 int id;
 void *data;
 ast_state_cb_type callback;
 struct ast_state_cb *next;
};

/*! \brief Structure for dial plan hints

 \note Hints are pointers from an extension in the dialplan to one or
 more devices (tech/name)
 - See \ref AstExtState
*/
struct ast_hint {
 struct ast_exten *exten; /*!< Extension */
 int laststate; /*!< Last known state */
 struct ast_state_cb *callbacks; /*!< Callback list for this extension */
 AST_RWLIST_ENTRY(ast_hint) list;/*!< Pointer to next hint in list */
};

struct store_hint {
 char *context;
 char *exten;
 struct ast_state_cb *callbacks;
 int laststate;
 AST_LIST_ENTRY(store_hint) list;
 char data[1];
};

AST_LIST_HEAD(store_hints, store_hint);

#define STATUS_NO_CONTEXT 1
#define STATUS_NO_EXTENSION 2
#define STATUS_NO_PRIORITY 3
#define STATUS_NO_LABEL 4
#define STATUS_SUCCESS 5

extern struct ast_context *local_contexts;
extern struct ast_context *contexts;


struct ast_custom_function *ast_custom_function_find(const char *name);


struct ast_custom_function *ast_custom_function_find(const char *name)
{
 return 0; /* in "standalone" mode, functions are just not avail */
}


struct profile_entry {
 const char *name;
 uint64_t scale; /* if non-zero, values are scaled by this */
 int64_t mark;
 int64_t value;
 int64_t events;
};

struct profile_data {
 int entries;
 int max_size;
 struct profile_entry e[0];
};

static int bit_at(unsigned int *word, int bitsperword, int bitnum)
{
 return word[bitnum/bitsperword] & (1 << (bitnum % bitsperword));
}

void get_start_stop(unsigned int *word, int bitsperword, int totalbits, int *start, int *end)
{
 int i;
 int thisbit, thatbit = bit_at(word, bitsperword, totalbits-1);

 for (i=0; i<totalbits; i++) {
 thisbit = bit_at(word, bitsperword, i);

 if (thisbit != thatbit ) {
 if (thisbit) {
 *start = i;
 } else {
 *end = i;
 }
 }
 thatbit = thisbit;
 }
}

int all_bits_set(unsigned int *word, int bitsperword, int totalbits )
{

 int i, total=totalbits/bitsperword,bitmask = 0;

 for (i=0; i<bitsperword; i++)
 {
 bitmask |= (1 << i);
 }

 for (i=0; i<total; i++)
 {
 if (word[i] != bitmask)
 return 0;
 }
 return 1;
}


int main(int argc, char **argv)
{
 struct ast_context *tmp;
 struct ast_exten *e, *eroot;
 pval *tree, *tmptree, *sws;
 struct ast_include *tmpi;
 struct ast_sw *sw = 0;
 struct ast_ignorepat *ipi;
 pval *incl=0;
 int localdir = 0, i;

 tree = 0;
 tmptree = 0;

 /* process the command line args */
 for (i=1; i<argc; i++)
 {
 if (strcmp(argv[i],"-d")==0)
 localdir =1;
 }

 /* 3 simple steps: */
 /* 1. read in the extensions.conf config file
 * 2. traverse, and build an AEL tree
 * 3. Output the AEL tree into a file
 */
 printf("WARNING: This is an EXTREMELY preliminary version of a program\n");
 printf(" that will someday hopefully do a thoughful and intelligent\n");
 printf(" job of transforming your extensions.conf file into an\n");
 printf(" extensions.ael file.\n");
 printf(" This version has absolutely no intelligence, and pretty\n");
 printf(" much just does a direct conversion\n");
 printf(" The result will most likely need careful attention to\n");
 printf(" finish the job!!!!!\n");

 if (!localdir)
 printf(" (You could use -d the use the extensions.conf in the current directory!)\n");

 printf("Loading %s/%s...\n", ast_config_AST_CONFIG_DIR, config);

 if (!localdir)
 localized_use_conf_dir();
 localized_pbx_load_module();

 printf("... Done!\n");

 tmp = 0;
 while ((tmp = localized_walk_contexts(tmp)) ) {
 printf("Context: %s\n", tmp->name);
 }
 printf("=========\n");
 tmp = 0;
 while ((tmp = localized_walk_contexts(tmp)) ) {
 /* printf("Context: %s\n", tmp->name); */
 tmptree = pvalCreateNode(PV_CONTEXT);
 if (!tree)
 tree = tmptree;
 else
 pvalTopLevAddObject(tree, tmptree);

 pvalContextSetName(tmptree, ast_strdup(tmp->name));

 if (tmp->includes) {
 incl = pvalCreateNode(PV_INCLUDES);
 pvalContextAddStatement(tmptree, incl);
 for (tmpi = tmp->includes; tmpi; ) { /* includes */
 if (strchr(tmpi->name,'|')==0) {
 if (tmpi->hastime)
 {
 char timerange[15];
 char dowrange[10];
 char domrange[10];
 char monrange[10];
 int startbit=0, endbit=0;

 if (all_bits_set(tmpi->timing.minmask, 30, 720))
 strcpy(timerange, "*");
 else {
 int hr, min;
 char tbuf[20];
 get_start_stop(tmpi->timing.minmask, 30, 720, &startbit, &endbit);
 hr = startbit/30;
 min = (startbit % 30) * 2;
 sprintf(tbuf,"%02d:%02d", hr, min);
 strcpy(timerange, tbuf);
 hr = endbit/30;
 min = (endbit % 30) * 2;
 sprintf(tbuf,"%02d:%02d", hr, min);
 strcat(timerange,"-");
 strcat(timerange,tbuf);
 }

 if (all_bits_set(&tmpi->timing.dowmask, 7, 7))
 strcpy(dowrange, "*");
 else {
 get_start_stop(&tmpi->timing.dowmask, 7, 7, &startbit, &endbit);
 strcpy(dowrange, days[startbit]);
 strcat(dowrange,"-");
 strcat(dowrange, days[endbit]);
 }

 if (all_bits_set(&tmpi->timing.monthmask, 12, 12))
 strcpy(monrange, "*");
 else {
 get_start_stop(&tmpi->timing.monthmask, 12, 12, &startbit, &endbit);
 strcpy(monrange, months[startbit]);
 strcat(monrange,"-");
 strcat(monrange, months[endbit]);
 }

 if (all_bits_set(&tmpi->timing.daymask, 31, 31))
 strcpy(domrange, "*");
 else {
 char tbuf[20];
 get_start_stop(&tmpi->timing.daymask, 31, 31, &startbit, &endbit);
 sprintf(tbuf,"%d", startbit);
 strcpy(domrange, tbuf);
 strcat(domrange,"-");
 sprintf(tbuf,"%d", endbit);
 strcat(domrange, tbuf);
 }
 /* now all 4 fields are set; what do we do? */
 pvalIncludesAddIncludeWithTimeConstraints(incl, strdup(tmpi->name), strdup(timerange), strdup(domrange), strdup(dowrange), strdup(monrange));

 } else {
 pvalIncludesAddInclude(incl, strdup(tmpi->name));
 }
 } else { /* it appears the timing constraint info is tacked onto the name, carve it up and divvy it out */
 char *dow,*dom,*mon;
 char *all = strdup(tmpi->name);
 char *hr = strchr(all,'|');
 if (hr) {
 *hr++ = 0;
 dow = strchr(hr,'|');
 if (dow) {
 *dow++ = 0;
 dom = strchr(dow,'|');
 if (dom) {
 *dom++ = 0;
 mon = strchr(dom,'|');
 if (mon) {
 *mon++ = 0;
 /* now all 4 fields are set; what do we do? */
 pvalIncludesAddIncludeWithTimeConstraints(incl, strdup(all), strdup(hr), strdup(dow), strdup(dom), strdup(mon));
 /* the original data is always best to keep (no 2-min rounding) */
 } else {
 ast_log(LOG_ERROR,"No month spec attached to include!\n");
 }
 } else {
 ast_log(LOG_ERROR,"No day of month spec attached to include!\n");
 }
 } else {
 ast_log(LOG_ERROR,"No day of week spec attached to include!\n");
 }
 }
 free(all);
 }
 tmpi = tmpi->next;
 }
 }
 for (ipi = tmp->ignorepats; ipi; ) { /* ignorepats */
 incl = pvalCreateNode(PV_IGNOREPAT);
 pvalIgnorePatSetPattern(incl,(char *)ipi->pattern);
 pvalContextAddStatement(tmptree, incl);
 ipi = ipi->next;
 }
 eroot=0;
 while ( (eroot = localized_walk_context_extensions(tmp, eroot)) ) {
 pval *exten = pvalCreateNode(PV_EXTENSION);
 pvalContextAddStatement(tmptree, exten);
 pvalExtenSetName(exten, ast_strdup(eroot->exten));

 if (eroot->peer) {
 pval *block = pvalCreateNode(PV_STATEMENTBLOCK);
 pvalExtenSetStatement(exten, block);

 e = 0;
 while ( (e = localized_walk_extension_priorities(eroot, e)) ) {

 pval *statemnt = pvalCreateNode(PV_APPLICATION_CALL);
 pval *args = pvalCreateNode(PV_WORD);

 /* printf(" %s(%s)\n", e->app, (char*)e->data); */

 pvalAppCallSetAppName(statemnt, ast_strdup(e->app));
 pvalWordSetString(args, ast_strdup(e->data));
 pvalAppCallAddArg(statemnt, args);

 pvalStatementBlockAddStatement(block, statemnt);
 }
 } else if (eroot->priority == -1) {

 pval *statemnt = pvalCreateNode(PV_APPLICATION_CALL);
 pval *args = pvalCreateNode(PV_WORD);

 /* printf("Mike, we have a hint on exten %s with data %s\n", eroot->exten, eroot->app); */

 pvalAppCallSetAppName(statemnt, "NoOp");
 pvalWordSetString(args, ast_strdup(eroot->app));


 pvalExtenSetStatement(exten, statemnt);
 pvalExtenSetHints(exten, ast_strdup(eroot->app));
 } else {

 pval *statemnt = pvalCreateNode(PV_APPLICATION_CALL);
 pval *args = pvalCreateNode(PV_WORD);

 /* printf(" %s (%s)\n", eroot->app, (char *)eroot->data); */

 pvalAppCallSetAppName(statemnt, ast_strdup(eroot->app));
 pvalWordSetString(args, ast_strdup(eroot->data));


 pvalAppCallAddArg(statemnt, args);
 pvalExtenSetStatement(exten, statemnt);
 }

 /* printf(" extension: %s\n", eroot->exten); */
 }
 if (AST_LIST_FIRST(&tmp->alts)) {
 sws = pvalCreateNode(PV_SWITCHES);
 pvalContextAddStatement(tmptree,sws);

 sw = 0;
 while ((sw = localized_walk_context_switches(tmp,sw)) ) {
 pvalSwitchesAddSwitch(sws, ast_strdup(sw->name));
 }
 }
 }
 printf("Generating aelout.ael file...\n");

 ael2_print("aelout.ael", tree);

 printf("...Done!\n");
 return 0;
}


/* ==================================== for linking internal stuff to external stuff */

int pbx_builtin_setvar(struct ast_channel *chan, const char *data)
{
 return localized_pbx_builtin_setvar(chan, data);
}

void pbx_substitute_variables_helper(struct ast_channel *c,const char *cp1,char *cp2,int count);
void pbx_substitute_variables_helper(struct ast_channel *c,const char *cp1,char *cp2,int count)
{
 if (cp1 && *cp1)
 strncpy(cp2,cp1,AST_MAX_EXTENSION); /* Right now, this routine is ONLY being called for
 a possible var substitution on extension names,
 so....! */
 else
 *cp2 = 0;
}

int ast_add_extension2(struct ast_context *con,
 int replace, const char *extension, int priority, const char *label, const char *callerid,
 const char *application, void *data, void (*datad)(void *),
 const char *registrar, const char *registrar_file, int registrar_line)
{
 return localized_add_extension2(con, replace, extension, priority, label, callerid, application, data, datad, registrar);
}

int ast_context_add_ignorepat2(struct ast_context *con, const char *value, const char *registrar)
{

 return localized_context_add_ignorepat2(con, value, registrar);
}

int ast_context_add_switch2(struct ast_context *con, const char *value,
 const char *data, int eval, const char *registrar)
{

 return localized_context_add_switch2(con, value, data, eval, registrar);
}

int ast_context_add_include2(struct ast_context *con, const char *value,
 const char *registrar)
{

 return localized_context_add_include2(con, value,registrar);
}

struct ast_context *ast_context_find_or_create(struct ast_context **extcontexts, struct ast_hashtab *exttable, const char *name, const char *registrar)
{
 printf("find/Creating context %s, registrar=%s\n", name, registrar);

 return localized_context_find_or_create(extcontexts, exttable, name, registrar);
}

void __ast_cli_register_multiple(void);

void __ast_cli_register_multiple(void)
{
}

void ast_module_register(const struct ast_module_info *x)
{
}

void ast_module_unregister(const struct ast_module_info *x)
{
}

void ast_cli_unregister_multiple(void);

void ast_cli_unregister_multiple(void)
{
}

struct ast_context *ast_walk_contexts(struct ast_context *con);
struct ast_context *ast_walk_contexts(struct ast_context *con)
{
 return localized_walk_contexts(con);
}

void ast_context_destroy(struct ast_context *con, const char *registrar);

void ast_context_destroy(struct ast_context *con, const char *registrar)
{
 return localized_context_destroy(con, registrar);
}

int ast_context_verify_includes(struct ast_context *con);

int ast_context_verify_includes(struct ast_context *con)
{
 return localized_context_verify_includes(con);
}

void ast_merge_contexts_and_delete(struct ast_context **extcontexts, struct ast_hashtab *exttable, const char *registrar);

void ast_merge_contexts_and_delete(struct ast_context **extcontexts, struct ast_hashtab *exttable, const char *registrar)
{
 localized_merge_contexts_and_delete(extcontexts, exttable, registrar);
}

const char *ast_get_context_name(struct ast_context *con);
const char *ast_get_context_name(struct ast_context *con)
{
 return con ? con->name : NULL;
}

struct ast_exten *ast_walk_context_extensions(struct ast_context *con, struct ast_exten *exten);
struct ast_exten *ast_walk_context_extensions(struct ast_context *con, struct ast_exten *exten)
{
 return NULL;
}

const struct ast_include *ast_walk_context_includes(const struct ast_context *con, const struct ast_include *inc);
const struct ast_include *ast_walk_context_includes(const struct ast_context *con, const struct ast_include *inc)
{
 return NULL;
}

struct ast_exten *pbx_find_extension(struct ast_channel *chan,
 struct ast_context *bypass,
 struct pbx_find_info *q,
 const char *context,
 const char *exten,
 int priority,
 const char *label,
 const char *callerid,
 enum ext_match_t action);

struct ast_exten *pbx_find_extension(struct ast_channel *chan,
 struct ast_context *bypass,
 struct pbx_find_info *q,
 const char *context,
 const char *exten,
 int priority,
 const char *label,
 const char *callerid,
 enum ext_match_t action)
{
 return localized_find_extension(bypass, q, context, exten, priority, label, callerid, action);
}

int ast_hashtab_compare_contexts(const void *ah_a, const void *ah_b);

int ast_hashtab_compare_contexts(const void *ah_a, const void *ah_b)
{
 return 0;
}

unsigned int ast_hashtab_hash_contexts(const void *obj);

unsigned int ast_hashtab_hash_contexts(const void *obj)
{
 return 0;
}

#ifdef DEBUG_THREADS
void ast_mark_lock_acquired(void *lock_addr)
{
}
void ast_remove_lock_info(void *lock_addr, struct ast_bt *bt)
{
}

void ast_store_lock_info(enum ast_lock_type type, const char *filename,
 int line_num, const char *func, const char *lock_name, void *lock_addr, struct ast_bt *bt)
{
}

#ifdef HAVE_BKTR
int __ast_bt_get_addresses(struct ast_bt *bt)
{
 return 0;
}

struct ast_vector_string *__ast_bt_get_symbols(void **addresses, size_t num_frames)
{
 return NULL;
}
#endif /* HAVE_BKTR */
void ast_suspend_lock_info(void *lock_addr)
{
}
void ast_restore_lock_info(void *lock_addr)
{
}
#endif /* DEBUG_THREADS */