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Diffstat (limited to 'trunk/main/manager.c')
| -rw-r--r-- | trunk/main/manager.c | 3768 |
1 files changed, 3768 insertions, 0 deletions
diff --git a/trunk/main/manager.c b/trunk/main/manager.c new file mode 100644 index 000000000..c9e69eb5b --- /dev/null +++ b/trunk/main/manager.c @@ -0,0 +1,3768 @@ +/* + * Asterisk -- An open source telephony toolkit. + * + * Copyright (C) 1999 - 2006, Digium, Inc. + * + * Mark Spencer <markster@digium.com> + * + * 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. + */ + +/*! \file + * + * \brief The Asterisk Management Interface - AMI + * + * \author Mark Spencer <markster@digium.com> + * + * \extref OpenSSL http://www.openssl.org - for AMI/SSL + * + * At the moment this file contains a number of functions, namely: + * + * - data structures storing AMI state + * - AMI-related API functions, used by internal asterisk components + * - handlers for AMI-related CLI functions + * - handlers for AMI functions (available through the AMI socket) + * - the code for the main AMI listener thread and individual session threads + * - the http handlers invoked for AMI-over-HTTP by the threads in main/http.c + * + * \ref amiconf + */ + +/*! \addtogroup Group_AMI AMI functions +*/ +/*! @{ + Doxygen group */ + +#include "asterisk.h" + +ASTERISK_FILE_VERSION(__FILE__, "$Revision$") + +#include "asterisk/_private.h" +#include "asterisk/paths.h" /* use various ast_config_AST_* */ +#include <ctype.h> +#include <sys/time.h> +#include <signal.h> +#include <sys/mman.h> + +#include "asterisk/channel.h" +#include "asterisk/file.h" +#include "asterisk/manager.h" +#include "asterisk/module.h" +#include "asterisk/config.h" +#include "asterisk/callerid.h" +#include "asterisk/lock.h" +#include "asterisk/cli.h" +#include "asterisk/app.h" +#include "asterisk/pbx.h" +#include "asterisk/md5.h" +#include "asterisk/acl.h" +#include "asterisk/utils.h" +#include "asterisk/tcptls.h" +#include "asterisk/http.h" +#include "asterisk/version.h" +#include "asterisk/threadstorage.h" +#include "asterisk/linkedlists.h" +#include "asterisk/version.h" +#include "asterisk/term.h" +#include "asterisk/astobj2.h" + +/*! + * Linked list of events. + * Global events are appended to the list by append_event(). + * The usecount is the number of stored pointers to the element, + * excluding the list pointers. So an element that is only in + * the list has a usecount of 0, not 1. + * + * Clients have a pointer to the last event processed, and for each + * of these clients we track the usecount of the elements. + * If we have a pointer to an entry in the list, it is safe to navigate + * it forward because elements will not be deleted, but only appended. + * The worst that can happen is seeing the pointer still NULL. + * + * When the usecount of an element drops to 0, and the element is the + * first in the list, we can remove it. Removal is done within the + * main thread, which is woken up for the purpose. + * + * For simplicity of implementation, we make sure the list is never empty. + */ +struct eventqent { + int usecount; /*!< # of clients who still need the event */ + int category; + unsigned int seq; /*!< sequence number */ + AST_LIST_ENTRY(eventqent) eq_next; + char eventdata[1]; /*!< really variable size, allocated by append_event() */ +}; + +static AST_LIST_HEAD_STATIC(all_events, eventqent); + +static int displayconnects = 1; +static int allowmultiplelogin = 1; +static int timestampevents; +static int httptimeout = 60; +static int manager_enabled = 0; +static int webmanager_enabled = 0; + +static int block_sockets; +static int num_sessions; + +static int manager_debug; /*!< enable some debugging code in the manager */ + +/*! \brief + * Descriptor for a manager session, either on the AMI socket or over HTTP. + * + * \note + * AMI session have managerid == 0; the entry is created upon a connect, + * and destroyed with the socket. + * HTTP sessions have managerid != 0, the value is used as a search key + * to lookup sessions (using the mansession_id cookie). + */ +static const char *command_blacklist[] = { + "module load", + "module unload", +}; + +struct mansession { + pthread_t ms_t; /*!< Execution thread, basically useless */ + ast_mutex_t __lock; /*!< Thread lock -- don't use in action callbacks, it's already taken care of */ + /* XXX need to document which fields it is protecting */ + struct sockaddr_in sin; /*!< address we are connecting from */ + FILE *f; /*!< fdopen() on the underlying fd */ + int fd; /*!< descriptor used for output. Either the socket (AMI) or a temporary file (HTTP) */ + int inuse; /*!< number of HTTP sessions using this entry */ + int needdestroy; /*!< Whether an HTTP session should be destroyed */ + pthread_t waiting_thread; /*!< Sleeping thread using this descriptor */ + unsigned long managerid; /*!< Unique manager identifier, 0 for AMI sessions */ + time_t sessionstart; /*!< Session start time */ + time_t sessiontimeout; /*!< Session timeout if HTTP */ + char username[80]; /*!< Logged in username */ + char challenge[10]; /*!< Authentication challenge */ + int authenticated; /*!< Authentication status */ + int readperm; /*!< Authorization for reading */ + int writeperm; /*!< Authorization for writing */ + char inbuf[1025]; /*!< Buffer */ + /* we use the extra byte to add a '\0' and simplify parsing */ + int inlen; /*!< number of buffered bytes */ + int send_events; /*!< XXX what ? */ + struct eventqent *last_ev; /*!< last event processed. */ + int writetimeout; /*!< Timeout for ast_carefulwrite() */ + AST_LIST_ENTRY(mansession) list; +}; + +#define NEW_EVENT(m) (AST_LIST_NEXT(m->last_ev, eq_next)) + +static AST_LIST_HEAD_STATIC(sessions, mansession); + +/*! \brief user descriptor, as read from the config file. + * + * \note It is still missing some fields -- e.g. we can have multiple permit and deny + * lines which are not supported here, and readperm/writeperm/writetimeout + * are not stored. + */ +struct ast_manager_user { + char username[80]; + char *secret; + struct ast_ha *ha; /*!< ACL setting */ + int readperm; /*! Authorization for reading */ + int writeperm; /*! Authorization for writing */ + int writetimeout; /*! Per user Timeout for ast_carefulwrite() */ + int displayconnects; /*!< XXX unused */ + int keep; /*!< mark entries created on a reload */ + AST_RWLIST_ENTRY(ast_manager_user) list; +}; + +/*! \brief list of users found in the config file */ +static AST_RWLIST_HEAD_STATIC(users, ast_manager_user); + +/*! \brief list of actions registered */ +static AST_RWLIST_HEAD_STATIC(actions, manager_action); + +/*! \brief list of hooks registered */ +static AST_RWLIST_HEAD_STATIC(manager_hooks, manager_custom_hook); + +/*! \brief Add a custom hook to be called when an event is fired */ +void ast_manager_register_hook(struct manager_custom_hook *hook) +{ + AST_RWLIST_WRLOCK(&manager_hooks); + AST_RWLIST_INSERT_TAIL(&manager_hooks, hook, list); + AST_RWLIST_UNLOCK(&manager_hooks); + return; +} + +/*! \brief Delete a custom hook to be called when an event is fired */ +void ast_manager_unregister_hook(struct manager_custom_hook *hook) +{ + AST_RWLIST_WRLOCK(&manager_hooks); + AST_RWLIST_REMOVE(&manager_hooks, hook, list); + AST_RWLIST_UNLOCK(&manager_hooks); + return; +} + +/*! \brief + * Event list management functions. + * We assume that the event list always has at least one element, + * and the delete code will not remove the last entry even if the + * + */ +#if 0 +static time_t __deb(time_t start, const char *msg) +{ + time_t now = time(NULL); + ast_verbose("%4d th %p %s\n", (int)(now % 3600), pthread_self(), msg); + if (start != 0 && now - start > 5) + ast_verbose("+++ WOW, %s took %d seconds\n", msg, (int)(now - start)); + return now; +} + +static void LOCK_EVENTS(void) +{ + time_t start = __deb(0, "about to lock events"); + AST_LIST_LOCK(&all_events); + __deb(start, "done lock events"); +} + +static void UNLOCK_EVENTS(void) +{ + __deb(0, "about to unlock events"); + AST_LIST_UNLOCK(&all_events); +} + +static void LOCK_SESS(void) +{ + time_t start = __deb(0, "about to lock sessions"); + AST_LIST_LOCK(&sessions); + __deb(start, "done lock sessions"); +} + +static void UNLOCK_SESS(void) +{ + __deb(0, "about to unlock sessions"); + AST_LIST_UNLOCK(&sessions); +} +#endif + +int check_manager_enabled() +{ + return manager_enabled; +} + +int check_webmanager_enabled() +{ + return (webmanager_enabled && manager_enabled); +} + +/*! + * Grab a reference to the last event, update usecount as needed. + * Can handle a NULL pointer. + */ +static struct eventqent *grab_last(void) +{ + struct eventqent *ret; + + AST_LIST_LOCK(&all_events); + ret = AST_LIST_LAST(&all_events); + /* the list is never empty now, but may become so when + * we optimize it in the future, so be prepared. + */ + if (ret) + ast_atomic_fetchadd_int(&ret->usecount, 1); + AST_LIST_UNLOCK(&all_events); + return ret; +} + +/*! + * Purge unused events. Remove elements from the head + * as long as their usecount is 0 and there is a next element. + */ +static void purge_events(void) +{ + struct eventqent *ev; + + AST_LIST_LOCK(&all_events); + while ( (ev = AST_LIST_FIRST(&all_events)) && + ev->usecount == 0 && AST_LIST_NEXT(ev, eq_next)) { + AST_LIST_REMOVE_HEAD(&all_events, eq_next); + ast_free(ev); + } + AST_LIST_UNLOCK(&all_events); +} + +/*! + * helper functions to convert back and forth between + * string and numeric representation of set of flags + */ +static struct permalias { + int num; + char *label; +} perms[] = { + { EVENT_FLAG_SYSTEM, "system" }, + { EVENT_FLAG_CALL, "call" }, + { EVENT_FLAG_LOG, "log" }, + { EVENT_FLAG_VERBOSE, "verbose" }, + { EVENT_FLAG_COMMAND, "command" }, + { EVENT_FLAG_AGENT, "agent" }, + { EVENT_FLAG_USER, "user" }, + { EVENT_FLAG_CONFIG, "config" }, + { EVENT_FLAG_DTMF, "dtmf" }, + { EVENT_FLAG_REPORTING, "reporting" }, + { EVENT_FLAG_CDR, "cdr" }, + { EVENT_FLAG_DIALPLAN, "dialplan" }, + { -1, "all" }, + { 0, "none" }, +}; + +/*! \brief Convert authority code to a list of options */ +static char *authority_to_str(int authority, struct ast_str **res) +{ + int i; + char *sep = ""; + + (*res)->used = 0; + for (i = 0; i < (sizeof(perms) / sizeof(perms[0])) - 1; i++) { + if (authority & perms[i].num) { + ast_str_append(res, 0, "%s%s", sep, perms[i].label); + sep = ","; + } + } + + if ((*res)->used == 0) /* replace empty string with something sensible */ + ast_str_append(res, 0, "<none>"); + + return (*res)->str; +} + +/*! Tells you if smallstr exists inside bigstr + which is delim by delim and uses no buf or stringsep + ast_instring("this|that|more","this",'|') == 1; + + feel free to move this to app.c -anthm */ +static int ast_instring(const char *bigstr, const char *smallstr, const char delim) +{ + const char *val = bigstr, *next; + + do { + if ((next = strchr(val, delim))) { + if (!strncmp(val, smallstr, (next - val))) + return 1; + else + continue; + } else + return !strcmp(smallstr, val); + } while (*(val = (next + 1))); + + return 0; +} + +static int get_perm(const char *instr) +{ + int x = 0, ret = 0; + + if (!instr) + return 0; + + for (x = 0; x < (sizeof(perms) / sizeof(perms[0])); x++) { + if (ast_instring(instr, perms[x].label, ',')) + ret |= perms[x].num; + } + + return ret; +} + +/*! + * A number returns itself, false returns 0, true returns all flags, + * other strings return the flags that are set. + */ +static int strings_to_mask(const char *string) +{ + const char *p; + + if (ast_strlen_zero(string)) + return -1; + + for (p = string; *p; p++) + if (*p < '0' || *p > '9') + break; + if (!p) /* all digits */ + return atoi(string); + if (ast_false(string)) + return 0; + if (ast_true(string)) { /* all permissions */ + int x, ret = 0; + for (x=0; x<sizeof(perms) / sizeof(perms[0]); x++) + ret |= perms[x].num; + return ret; + } + return get_perm(string); +} + +static int check_manager_session_inuse(const char *name) +{ + struct mansession *session = NULL; + + AST_LIST_LOCK(&sessions); + AST_LIST_TRAVERSE(&sessions, session, list) { + if (!strcasecmp(session->username, name)) + break; + } + AST_LIST_UNLOCK(&sessions); + + return session ? 1 : 0; +} + + +/*! + * lookup an entry in the list of registered users. + * must be called with the list lock held. + */ +static struct ast_manager_user *get_manager_by_name_locked(const char *name) +{ + struct ast_manager_user *user = NULL; + + AST_RWLIST_TRAVERSE(&users, user, list) + if (!strcasecmp(user->username, name)) + break; + return user; +} + +/*! \brief Get displayconnects config option. + * \param s manager session to get parameter from. + * \return displayconnects config option value. + */ +static int manager_displayconnects (struct mansession *s) +{ + struct ast_manager_user *user = NULL; + int ret = 0; + + AST_RWLIST_RDLOCK(&users); + if ((user = get_manager_by_name_locked (s->username))) + ret = user->displayconnects; + AST_RWLIST_UNLOCK(&users); + + return ret; +} + +static char *handle_showmancmd(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a) +{ + struct manager_action *cur; + struct ast_str *authority; + int num, l, which; + char *ret = NULL; + switch (cmd) { + case CLI_INIT: + e->command = "manager show command"; + e->usage = + "Usage: manager show command <actionname>\n" + " Shows the detailed description for a specific Asterisk manager interface command.\n"; + return NULL; + case CLI_GENERATE: + l = strlen(a->word); + which = 0; + AST_RWLIST_RDLOCK(&actions); + AST_RWLIST_TRAVERSE(&actions, cur, list) { + if (!strncasecmp(a->word, cur->action, l) && ++which > a->n) { + ret = ast_strdup(cur->action); + break; /* make sure we exit even if ast_strdup() returns NULL */ + } + } + AST_RWLIST_UNLOCK(&actions); + return ret; + } + authority = ast_str_alloca(80); + if (a->argc != 4) + return CLI_SHOWUSAGE; + + AST_RWLIST_RDLOCK(&actions); + AST_RWLIST_TRAVERSE(&actions, cur, list) { + for (num = 3; num < a->argc; num++) { + if (!strcasecmp(cur->action, a->argv[num])) { + ast_cli(a->fd, "Action: %s\nSynopsis: %s\nPrivilege: %s\n%s\n", + cur->action, cur->synopsis, + authority_to_str(cur->authority, &authority), + S_OR(cur->description, "")); + } + } + } + AST_RWLIST_UNLOCK(&actions); + + return CLI_SUCCESS; +} + +static char *handle_mandebug(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a) +{ + switch (cmd) { + case CLI_INIT: + e->command = "manager debug [on|off]"; + e->usage = "Usage: manager debug [on|off]\n Show, enable, disable debugging of the manager code.\n"; + return NULL; + case CLI_GENERATE: + return NULL; + } + if (a->argc == 2) + ast_cli(a->fd, "manager debug is %s\n", manager_debug? "on" : "off"); + else if (a->argc == 3) { + if (!strcasecmp(a->argv[2], "on")) + manager_debug = 1; + else if (!strcasecmp(a->argv[2], "off")) + manager_debug = 0; + else + return CLI_SHOWUSAGE; + } + return CLI_SUCCESS; +} + +static char *handle_showmanager(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a) +{ + struct ast_manager_user *user = NULL; + int l, which; + char *ret = NULL; + struct ast_str *rauthority = ast_str_alloca(80); + struct ast_str *wauthority = ast_str_alloca(80); + + switch (cmd) { + case CLI_INIT: + e->command = "manager show user"; + e->usage = + " Usage: manager show user <user>\n" + " Display all information related to the manager user specified.\n"; + return NULL; + case CLI_GENERATE: + l = strlen(a->word); + which = 0; + if (a->pos != 3) + return NULL; + AST_RWLIST_RDLOCK(&users); + AST_RWLIST_TRAVERSE(&users, user, list) { + if ( !strncasecmp(a->word, user->username, l) && ++which > a->n ) { + ret = ast_strdup(user->username); + break; + } + } + AST_RWLIST_UNLOCK(&users); + return ret; + } + + if (a->argc != 4) + return CLI_SHOWUSAGE; + + AST_RWLIST_RDLOCK(&users); + + if (!(user = get_manager_by_name_locked(a->argv[3]))) { + ast_cli(a->fd, "There is no manager called %s\n", a->argv[3]); + AST_RWLIST_UNLOCK(&users); + return CLI_SUCCESS; + } + + ast_cli(a->fd,"\n"); + ast_cli(a->fd, + " username: %s\n" + " secret: %s\n" + " acl: %s\n" + " read perm: %s\n" + " write perm: %s\n" + "displayconnects: %s\n", + (user->username ? user->username : "(N/A)"), + (user->secret ? "<Set>" : "(N/A)"), + (user->ha ? "yes" : "no"), + authority_to_str(user->readperm, &rauthority), + authority_to_str(user->writeperm, &wauthority), + (user->displayconnects ? "yes" : "no")); + + AST_RWLIST_UNLOCK(&users); + + return CLI_SUCCESS; +} + + +static char *handle_showmanagers(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a) +{ + struct ast_manager_user *user = NULL; + int count_amu = 0; + switch (cmd) { + case CLI_INIT: + e->command = "manager show users"; + e->usage = + "Usage: manager show users\n" + " Prints a listing of all managers that are currently configured on that\n" + " system.\n"; + return NULL; + case CLI_GENERATE: + return NULL; + } + if (a->argc != 3) + return CLI_SHOWUSAGE; + + AST_RWLIST_RDLOCK(&users); + + /* If there are no users, print out something along those lines */ + if (AST_RWLIST_EMPTY(&users)) { + ast_cli(a->fd, "There are no manager users.\n"); + AST_RWLIST_UNLOCK(&users); + return CLI_SUCCESS; + } + + ast_cli(a->fd, "\nusername\n--------\n"); + + AST_RWLIST_TRAVERSE(&users, user, list) { + ast_cli(a->fd, "%s\n", user->username); + count_amu++; + } + + AST_RWLIST_UNLOCK(&users); + + ast_cli(a->fd,"-------------------\n"); + ast_cli(a->fd,"%d manager users configured.\n", count_amu); + + return CLI_SUCCESS; +} + + +/*! \brief CLI command manager list commands */ +static char *handle_showmancmds(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a) +{ + struct manager_action *cur; + struct ast_str *authority; + static const char *format = " %-15.15s %-15.15s %-55.55s\n"; + switch (cmd) { + case CLI_INIT: + e->command = "manager show commands"; + e->usage = + "Usage: manager show commands\n" + " Prints a listing of all the available Asterisk manager interface commands.\n"; + return NULL; + case CLI_GENERATE: + return NULL; + } + authority = ast_str_alloca(80); + ast_cli(a->fd, format, "Action", "Privilege", "Synopsis"); + ast_cli(a->fd, format, "------", "---------", "--------"); + + AST_RWLIST_RDLOCK(&actions); + AST_RWLIST_TRAVERSE(&actions, cur, list) + ast_cli(a->fd, format, cur->action, authority_to_str(cur->authority, &authority), cur->synopsis); + AST_RWLIST_UNLOCK(&actions); + + return CLI_SUCCESS; +} + +/*! \brief CLI command manager list connected */ +static char *handle_showmanconn(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a) +{ + struct mansession *s; + time_t now = time(NULL); + static const char *format = " %-15.15s %-15.15s %-10.10s %-10.10s %-8.8s %-8.8s %-5.5s %-5.5s\n"; + static const char *format2 = " %-15.15s %-15.15s %-10d %-10d %-8d %-8d %-5.5d %-5.5d\n"; + int count = 0; + switch (cmd) { + case CLI_INIT: + e->command = "manager show connected"; + e->usage = + "Usage: manager show connected\n" + " Prints a listing of the users that are currently connected to the\n" + "Asterisk manager interface.\n"; + return NULL; + case CLI_GENERATE: + return NULL; + } + + ast_cli(a->fd, format, "Username", "IP Address", "Start", "Elapsed", "FileDes", "HttpCnt", "Read", "Write"); + + AST_LIST_LOCK(&sessions); + AST_LIST_TRAVERSE(&sessions, s, list) { + ast_cli(a->fd, format2, s->username, ast_inet_ntoa(s->sin.sin_addr), (int)(s->sessionstart), (int)(now - s->sessionstart), s->fd, s->inuse, s->readperm, s->writeperm); + count++; + } + AST_LIST_UNLOCK(&sessions); + + ast_cli(a->fd, "%d users connected.\n", count); + + return CLI_SUCCESS; +} + +/*! \brief CLI command manager list eventq */ +/* Should change to "manager show connected" */ +static char *handle_showmaneventq(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a) +{ + struct eventqent *s; + switch (cmd) { + case CLI_INIT: + e->command = "manager show eventq"; + e->usage = + "Usage: manager show eventq\n" + " Prints a listing of all events pending in the Asterisk manger\n" + "event queue.\n"; + return NULL; + case CLI_GENERATE: + return NULL; + } + AST_LIST_LOCK(&all_events); + AST_LIST_TRAVERSE(&all_events, s, eq_next) { + ast_cli(a->fd, "Usecount: %d\n",s->usecount); + ast_cli(a->fd, "Category: %d\n", s->category); + ast_cli(a->fd, "Event:\n%s", s->eventdata); + } + AST_LIST_UNLOCK(&all_events); + + return CLI_SUCCESS; +} + +/*! \brief CLI command manager reload */ +static char *handle_manager_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a) +{ + switch (cmd) { + case CLI_INIT: + e->command = "manager reload"; + e->usage = + "Usage: manager reload\n" + " Reloads the manager configuration.\n"; + return NULL; + case CLI_GENERATE: + return NULL; + } + if (a->argc > 2) + return CLI_SHOWUSAGE; + reload_manager(); + return CLI_SUCCESS; +} + + +static struct ast_cli_entry cli_manager[] = { + AST_CLI_DEFINE(handle_showmancmd, "Show a manager interface command"), + AST_CLI_DEFINE(handle_showmancmds, "List manager interface commands"), + AST_CLI_DEFINE(handle_showmanconn, "List connected manager interface users"), + AST_CLI_DEFINE(handle_showmaneventq, "List manager interface queued events"), + AST_CLI_DEFINE(handle_showmanagers, "List configured manager users"), + AST_CLI_DEFINE(handle_showmanager, "Display information on a specific manager user"), + AST_CLI_DEFINE(handle_mandebug, "Show, enable, disable debugging of the manager code"), + AST_CLI_DEFINE(handle_manager_reload, "Reload manager configurations"), +}; + +/* + * Decrement the usecount for the event; if it goes to zero, + * (why check for e->next ?) wakeup the + * main thread, which is in charge of freeing the record. + * Returns the next record. + */ +static struct eventqent *unref_event(struct eventqent *e) +{ + ast_atomic_fetchadd_int(&e->usecount, -1); + return AST_LIST_NEXT(e, eq_next); +} + +static void ref_event(struct eventqent *e) +{ + ast_atomic_fetchadd_int(&e->usecount, 1); +} + +/* + * destroy a session, leaving the usecount + */ +static void free_session(struct mansession *s) +{ + struct eventqent *eqe = s->last_ev; + if (s->f != NULL) + fclose(s->f); + ast_mutex_destroy(&s->__lock); + ast_free(s); + unref_event(eqe); +} + +static void destroy_session(struct mansession *s) +{ + AST_LIST_LOCK(&sessions); + AST_LIST_REMOVE(&sessions, s, list); + ast_atomic_fetchadd_int(&num_sessions, -1); + free_session(s); + AST_LIST_UNLOCK(&sessions); +} + +const char *astman_get_header(const struct message *m, char *var) +{ + int x, l = strlen(var); + + for (x = 0; x < m->hdrcount; x++) { + const char *h = m->headers[x]; + if (!strncasecmp(var, h, l) && h[l] == ':' && h[l+1] == ' ') + return h + l + 2; + } + + return ""; +} + +struct ast_variable *astman_get_variables(const struct message *m) +{ + int varlen, x, y; + struct ast_variable *head = NULL, *cur; + + AST_DECLARE_APP_ARGS(args, + AST_APP_ARG(vars)[32]; + ); + + varlen = strlen("Variable: "); + + for (x = 0; x < m->hdrcount; x++) { + char *parse, *var, *val; + + if (strncasecmp("Variable: ", m->headers[x], varlen)) + continue; + parse = ast_strdupa(m->headers[x] + varlen); + + AST_STANDARD_APP_ARGS(args, parse); + if (!args.argc) + continue; + for (y = 0; y < args.argc; y++) { + if (!args.vars[y]) + continue; + var = val = ast_strdupa(args.vars[y]); + strsep(&val, "="); + if (!val || ast_strlen_zero(var)) + continue; + cur = ast_variable_new(var, val, ""); + cur->next = head; + head = cur; + } + } + + return head; +} + +/*! + * helper function to send a string to the socket. + * Return -1 on error (e.g. buffer full). + */ +static int send_string(struct mansession *s, char *string) +{ + int len = strlen(string); /* residual length */ + char *src = string; + struct timeval start = ast_tvnow(); + int n = 0; + + for (;;) { + int elapsed; + struct pollfd fd; + n = fwrite(src, 1, len, s->f); /* try to write the string, non blocking */ + if (n == len /* ok */ || n < 0 /* error */) + break; + len -= n; /* skip already written data */ + src += n; + fd.fd = s->fd; + fd.events = POLLOUT; + n = -1; /* error marker */ + elapsed = ast_tvdiff_ms(ast_tvnow(), start); + if (elapsed > s->writetimeout) + break; + if (poll(&fd, 1, s->writetimeout - elapsed) < 1) + break; + } + fflush(s->f); + return n < 0 ? -1 : 0; +} + +/*! + * \brief thread local buffer for astman_append + * + * \note This can not be defined within the astman_append() function + * because it declares a couple of functions that get used to + * initialize the thread local storage key. + */ +AST_THREADSTORAGE(astman_append_buf); +/*! \brief initial allocated size for the astman_append_buf */ +#define ASTMAN_APPEND_BUF_INITSIZE 256 + +/*! + * utility functions for creating AMI replies + */ +void astman_append(struct mansession *s, const char *fmt, ...) +{ + va_list ap; + struct ast_str *buf; + + if (!(buf = ast_str_thread_get(&astman_append_buf, ASTMAN_APPEND_BUF_INITSIZE))) + return; + + va_start(ap, fmt); + ast_str_set_va(&buf, 0, fmt, ap); + va_end(ap); + + if (s->f != NULL) + send_string(s, buf->str); + else + ast_verbose("fd == -1 in astman_append, should not happen\n"); +} + +/*! \note NOTE: XXX this comment is unclear and possibly wrong. + Callers of astman_send_error(), astman_send_response() or astman_send_ack() must EITHER + hold the session lock _or_ be running in an action callback (in which case s->busy will + be non-zero). In either of these cases, there is no need to lock-protect the session's + fd, since no other output will be sent (events will be queued), and no input will + be read until either the current action finishes or get_input() obtains the session + lock. + */ + +/*! \brief send a response with an optional message, + * and terminate it with an empty line. + * m is used only to grab the 'ActionID' field. + * + * Use the explicit constant MSG_MOREDATA to remove the empty line. + * XXX MSG_MOREDATA should go to a header file. + */ +#define MSG_MOREDATA ((char *)astman_send_response) +static void astman_send_response_full(struct mansession *s, const struct message *m, char *resp, char *msg, char *listflag) +{ + const char *id = astman_get_header(m,"ActionID"); + + astman_append(s, "Response: %s\r\n", resp); + if (!ast_strlen_zero(id)) + astman_append(s, "ActionID: %s\r\n", id); + if (listflag) + astman_append(s, "Eventlist: %s\r\n", listflag); /* Start, complete, cancelled */ + if (msg == MSG_MOREDATA) + return; + else if (msg) + astman_append(s, "Message: %s\r\n\r\n", msg); + else + astman_append(s, "\r\n"); +} + +void astman_send_response(struct mansession *s, const struct message *m, char *resp, char *msg) +{ + astman_send_response_full(s, m, resp, msg, NULL); +} + +void astman_send_error(struct mansession *s, const struct message *m, char *error) +{ + astman_send_response_full(s, m, "Error", error, NULL); +} + +void astman_send_ack(struct mansession *s, const struct message *m, char *msg) +{ + astman_send_response_full(s, m, "Success", msg, NULL); +} + +static void astman_start_ack(struct mansession *s, const struct message *m) +{ + astman_send_response_full(s, m, "Success", MSG_MOREDATA, NULL); +} + +void astman_send_listack(struct mansession *s, const struct message *m, char *msg, char *listflag) +{ + astman_send_response_full(s, m, "Success", msg, listflag); +} + + +/*! \brief + Rather than braindead on,off this now can also accept a specific int mask value + or a ',' delim list of mask strings (the same as manager.conf) -anthm +*/ +static int set_eventmask(struct mansession *s, const char *eventmask) +{ + int maskint = strings_to_mask(eventmask); + + ast_mutex_lock(&s->__lock); + if (maskint >= 0) + s->send_events = maskint; + ast_mutex_unlock(&s->__lock); + + return maskint; +} + +/* + * Here we start with action_ handlers for AMI actions, + * and the internal functions used by them. + * Generally, the handlers are called action_foo() + */ + +/* helper function for action_login() */ +static int authenticate(struct mansession *s, const struct message *m) +{ + const char *username = astman_get_header(m, "Username"); + const char *password = astman_get_header(m, "Secret"); + int error = -1; + struct ast_manager_user *user = NULL; + + if (ast_strlen_zero(username)) /* missing username */ + return -1; + + /* locate user in locked state */ + AST_RWLIST_WRLOCK(&users); + + if (!(user = get_manager_by_name_locked(username))) { + ast_log(LOG_NOTICE, "%s tried to authenticate with nonexistent user '%s'\n", ast_inet_ntoa(s->sin.sin_addr), username); + } else if (user->ha && !ast_apply_ha(user->ha, &(s->sin))) { + ast_log(LOG_NOTICE, "%s failed to pass IP ACL as '%s'\n", ast_inet_ntoa(s->sin.sin_addr), username); + } else if (!strcasecmp(astman_get_header(m, "AuthType"), "MD5")) { + const char *key = astman_get_header(m, "Key"); + if (!ast_strlen_zero(key) && !ast_strlen_zero(s->challenge) && user->secret) { + int x; + int len = 0; + char md5key[256] = ""; + struct MD5Context md5; + unsigned char digest[16]; + + MD5Init(&md5); + MD5Update(&md5, (unsigned char *) s->challenge, strlen(s->challenge)); + MD5Update(&md5, (unsigned char *) user->secret, strlen(user->secret)); + MD5Final(digest, &md5); + for (x=0; x<16; x++) + len += sprintf(md5key + len, "%2.2x", digest[x]); + if (!strcmp(md5key, key)) + error = 0; + } else { + ast_debug(1, "MD5 authentication is not possible. challenge: '%s'\n", + S_OR(s->challenge, "")); + } + } else if (password && user->secret && !strcmp(password, user->secret)) + error = 0; + + if (error) { + ast_log(LOG_NOTICE, "%s failed to authenticate as '%s'\n", ast_inet_ntoa(s->sin.sin_addr), username); + AST_RWLIST_UNLOCK(&users); + return -1; + } + + /* auth complete */ + + ast_copy_string(s->username, username, sizeof(s->username)); + s->readperm = user->readperm; + s->writeperm = user->writeperm; + s->writetimeout = user->writetimeout; + s->sessionstart = time(NULL); + set_eventmask(s, astman_get_header(m, "Events")); + + AST_RWLIST_UNLOCK(&users); + return 0; +} + +/*! \brief Manager PING */ +static char mandescr_ping[] = +"Description: A 'Ping' action will ellicit a 'Pong' response. Used to keep the\n" +" manager connection open.\n" +"Variables: NONE\n"; + +static int action_ping(struct mansession *s, const struct message *m) +{ + astman_send_response(s, m, "Success", "Ping: Pong\r\n"); + return 0; +} + +static char mandescr_getconfig[] = +"Description: A 'GetConfig' action will dump the contents of a configuration\n" +"file by category and contents.\n" +"Variables:\n" +" Filename: Configuration filename (e.g. foo.conf)\n"; + +static int action_getconfig(struct mansession *s, const struct message *m) +{ + struct ast_config *cfg; + const char *fn = astman_get_header(m, "Filename"); + int catcount = 0; + int lineno = 0; + char *category=NULL; + struct ast_variable *v; + struct ast_flags config_flags = { CONFIG_FLAG_WITHCOMMENTS | CONFIG_FLAG_NOCACHE }; + + if (ast_strlen_zero(fn)) { + astman_send_error(s, m, "Filename not specified"); + return 0; + } + if (!(cfg = ast_config_load(fn, config_flags))) { + astman_send_error(s, m, "Config file not found"); + return 0; + } + astman_start_ack(s, m); + while ((category = ast_category_browse(cfg, category))) { + lineno = 0; + astman_append(s, "Category-%06d: %s\r\n", catcount, category); + for (v = ast_variable_browse(cfg, category); v; v = v->next) + astman_append(s, "Line-%06d-%06d: %s=%s\r\n", catcount, lineno++, v->name, v->value); + catcount++; + } + ast_config_destroy(cfg); + astman_append(s, "\r\n"); + + return 0; +} + +/*! The amount of space in out must be at least ( 2 * strlen(in) + 1 ) */ +static void json_escape(char *out, const char *in) +{ + for (; *in; in++) { + if (*in == '\\' || *in == '\"') + *out++ = '\\'; + *out++ = *in; + } + *out = '\0'; +} + +static char mandescr_getconfigjson[] = +"Description: A 'GetConfigJSON' action will dump the contents of a configuration\n" +"file by category and contents in JSON format. This only makes sense to be used\n" +"using rawman over the HTTP interface.\n" +"Variables:\n" +" Filename: Configuration filename (e.g. foo.conf)\n"; + +static int action_getconfigjson(struct mansession *s, const struct message *m) +{ + struct ast_config *cfg; + const char *fn = astman_get_header(m, "Filename"); + char *category = NULL; + struct ast_variable *v; + int comma1 = 0; + char *buf = NULL; + unsigned int buf_len = 0; + struct ast_flags config_flags = { CONFIG_FLAG_WITHCOMMENTS | CONFIG_FLAG_NOCACHE }; + + if (ast_strlen_zero(fn)) { + astman_send_error(s, m, "Filename not specified"); + return 0; + } + + if (!(cfg = ast_config_load(fn, config_flags))) { + astman_send_error(s, m, "Config file not found"); + return 0; + } + + buf_len = 512; + buf = alloca(buf_len); + + astman_start_ack(s, m); + astman_append(s, "JSON: {"); + while ((category = ast_category_browse(cfg, category))) { + int comma2 = 0; + if (buf_len < 2 * strlen(category) + 1) { + buf_len *= 2; + buf = alloca(buf_len); + } + json_escape(buf, category); + astman_append(s, "%s\"%s\":[", comma1 ? "," : "", buf); + if (!comma1) + comma1 = 1; + for (v = ast_variable_browse(cfg, category); v; v = v->next) { + if (comma2) + astman_append(s, ","); + if (buf_len < 2 * strlen(v->name) + 1) { + buf_len *= 2; + buf = alloca(buf_len); + } + json_escape(buf, v->name); + astman_append(s, "\"%s", buf); + if (buf_len < 2 * strlen(v->value) + 1) { + buf_len *= 2; + buf = alloca(buf_len); + } + json_escape(buf, v->value); + astman_append(s, "%s\"", buf); + if (!comma2) + comma2 = 1; + } + astman_append(s, "]"); + } + astman_append(s, "}\r\n\r\n"); + + ast_config_destroy(cfg); + + return 0; +} + +/* helper function for action_updateconfig */ +static void handle_updates(struct mansession *s, const struct message *m, struct ast_config *cfg, const char *dfn) +{ + int x; + char hdr[40]; + const char *action, *cat, *var, *value, *match; + struct ast_category *category; + struct ast_variable *v; + + for (x = 0; x < 100000; x++) { + unsigned int object = 0; + + snprintf(hdr, sizeof(hdr), "Action-%06d", x); + action = astman_get_header(m, hdr); + if (ast_strlen_zero(action)) + break; + snprintf(hdr, sizeof(hdr), "Cat-%06d", x); + cat = astman_get_header(m, hdr); + snprintf(hdr, sizeof(hdr), "Var-%06d", x); + var = astman_get_header(m, hdr); + snprintf(hdr, sizeof(hdr), "Value-%06d", x); + value = astman_get_header(m, hdr); + if (!ast_strlen_zero(value) && *value == '>') { + object = 1; + value++; + } + snprintf(hdr, sizeof(hdr), "Match-%06d", x); + match = astman_get_header(m, hdr); + if (!strcasecmp(action, "newcat")) { + if (!ast_strlen_zero(cat)) { + category = ast_category_new(cat, dfn, 99999); + if (category) { + ast_category_append(cfg, category); + } + } + } else if (!strcasecmp(action, "renamecat")) { + if (!ast_strlen_zero(cat) && !ast_strlen_zero(value)) { + category = ast_category_get(cfg, cat); + if (category) + ast_category_rename(category, value); + } + } else if (!strcasecmp(action, "delcat")) { + if (!ast_strlen_zero(cat)) + ast_category_delete(cfg, cat); + } else if (!strcasecmp(action, "update")) { + if (!ast_strlen_zero(cat) && !ast_strlen_zero(var) && (category = ast_category_get(cfg, cat))) + ast_variable_update(category, var, value, match, object); + } else if (!strcasecmp(action, "delete")) { + if (!ast_strlen_zero(cat) && !ast_strlen_zero(var) && (category = ast_category_get(cfg, cat))) + ast_variable_delete(category, var, match); + } else if (!strcasecmp(action, "append")) { + if (!ast_strlen_zero(cat) && !ast_strlen_zero(var) && + (category = ast_category_get(cfg, cat)) && + (v = ast_variable_new(var, value, dfn))){ + if (object || (match && !strcasecmp(match, "object"))) + v->object = 1; + ast_variable_append(category, v); + } + } + } +} + +static char mandescr_updateconfig[] = +"Description: A 'UpdateConfig' action will modify, create, or delete\n" +"configuration elements in Asterisk configuration files.\n" +"Variables (X's represent 6 digit number beginning with 000000):\n" +" SrcFilename: Configuration filename to read(e.g. foo.conf)\n" +" DstFilename: Configuration filename to write(e.g. foo.conf)\n" +" Reload: Whether or not a reload should take place (or name of specific module)\n" +" Action-XXXXXX: Action to Take (NewCat,RenameCat,DelCat,Update,Delete,Append)\n" +" Cat-XXXXXX: Category to operate on\n" +" Var-XXXXXX: Variable to work on\n" +" Value-XXXXXX: Value to work on\n" +" Match-XXXXXX: Extra match required to match line\n"; + +static int action_updateconfig(struct mansession *s, const struct message *m) +{ + struct ast_config *cfg; + const char *sfn = astman_get_header(m, "SrcFilename"); + const char *dfn = astman_get_header(m, "DstFilename"); + int res; + const char *rld = astman_get_header(m, "Reload"); + struct ast_flags config_flags = { CONFIG_FLAG_WITHCOMMENTS | CONFIG_FLAG_NOCACHE }; + + if (ast_strlen_zero(sfn) || ast_strlen_zero(dfn)) { + astman_send_error(s, m, "Filename not specified"); + return 0; + } + if (!(cfg = ast_config_load(sfn, config_flags))) { + astman_send_error(s, m, "Config file not found"); + return 0; + } + handle_updates(s, m, cfg, dfn); + ast_include_rename(cfg, sfn, dfn); /* change the include references from dfn to sfn, so things match up */ + res = config_text_file_save(dfn, cfg, "Manager"); + ast_config_destroy(cfg); + if (res) { + astman_send_error(s, m, "Save of config failed"); + return 0; + } + astman_send_ack(s, m, NULL); + if (!ast_strlen_zero(rld)) { + if (ast_true(rld)) + rld = NULL; + ast_module_reload(rld); + } + return 0; +} + +/*! \brief Manager WAITEVENT */ +static char mandescr_waitevent[] = +"Description: A 'WaitEvent' action will ellicit a 'Success' response. Whenever\n" +"a manager event is queued. Once WaitEvent has been called on an HTTP manager\n" +"session, events will be generated and queued.\n" +"Variables: \n" +" Timeout: Maximum time (in seconds) to wait for events, -1 means forever.\n"; + +static int action_waitevent(struct mansession *s, const struct message *m) +{ + const char *timeouts = astman_get_header(m, "Timeout"); + int timeout = -1; + int x; + int needexit = 0; + const char *id = astman_get_header(m,"ActionID"); + char idText[256] = ""; + + if (!ast_strlen_zero(id)) + snprintf(idText, sizeof(idText), "ActionID: %s\r\n", id); + + if (!ast_strlen_zero(timeouts)) { + sscanf(timeouts, "%i", &timeout); + if (timeout < -1) + timeout = -1; + /* XXX maybe put an upper bound, or prevent the use of 0 ? */ + } + + ast_mutex_lock(&s->__lock); + if (s->waiting_thread != AST_PTHREADT_NULL) + pthread_kill(s->waiting_thread, SIGURG); + + if (s->managerid) { /* AMI-over-HTTP session */ + /* + * Make sure the timeout is within the expire time of the session, + * as the client will likely abort the request if it does not see + * data coming after some amount of time. + */ + time_t now = time(NULL); + int max = s->sessiontimeout - now - 10; + + if (max < 0) /* We are already late. Strange but possible. */ + max = 0; + if (timeout < 0 || timeout > max) + timeout = max; + if (!s->send_events) /* make sure we record events */ + s->send_events = -1; + } + ast_mutex_unlock(&s->__lock); + + /* XXX should this go inside the lock ? */ + s->waiting_thread = pthread_self(); /* let new events wake up this thread */ + ast_debug(1, "Starting waiting for an event!\n"); + + for (x=0; x < timeout || timeout < 0; x++) { + ast_mutex_lock(&s->__lock); + if (NEW_EVENT(s)) + needexit = 1; + /* We can have multiple HTTP session point to the same mansession entry. + * The way we deal with it is not very nice: newcomers kick out the previous + * HTTP session. XXX this needs to be improved. + */ + if (s->waiting_thread != pthread_self()) + needexit = 1; + if (s->needdestroy) + needexit = 1; + ast_mutex_unlock(&s->__lock); + if (needexit) + break; + if (s->managerid == 0) { /* AMI session */ + if (ast_wait_for_input(s->fd, 1000)) + break; + } else { /* HTTP session */ + sleep(1); + } + } + ast_debug(1, "Finished waiting for an event!\n"); + ast_mutex_lock(&s->__lock); + if (s->waiting_thread == pthread_self()) { + struct eventqent *eqe; + astman_send_response(s, m, "Success", "Waiting for Event completed."); + while ( (eqe = NEW_EVENT(s)) ) { + ref_event(eqe); + if (((s->readperm & eqe->category) == eqe->category) && + ((s->send_events & eqe->category) == eqe->category)) { + astman_append(s, "%s", eqe->eventdata); + } + s->last_ev = unref_event(s->last_ev); + } + astman_append(s, + "Event: WaitEventComplete\r\n" + "%s" + "\r\n", idText); + s->waiting_thread = AST_PTHREADT_NULL; + } else { + ast_debug(1, "Abandoning event request!\n"); + } + ast_mutex_unlock(&s->__lock); + return 0; +} + +static char mandescr_listcommands[] = +"Description: Returns the action name and synopsis for every\n" +" action that is available to the user\n" +"Variables: NONE\n"; + +/*! \note The actionlock is read-locked by the caller of this function */ +static int action_listcommands(struct mansession *s, const struct message *m) +{ + struct manager_action *cur; + struct ast_str *temp = ast_str_alloca(BUFSIZ); /* XXX very large ? */ + + astman_start_ack(s, m); + AST_RWLIST_TRAVERSE(&actions, cur, list) { + if (s->writeperm & cur->authority || cur->authority == 0) + astman_append(s, "%s: %s (Priv: %s)\r\n", + cur->action, cur->synopsis, authority_to_str(cur->authority, &temp)); + } + astman_append(s, "\r\n"); + + return 0; +} + +static char mandescr_events[] = +"Description: Enable/Disable sending of events to this manager\n" +" client.\n" +"Variables:\n" +" EventMask: 'on' if all events should be sent,\n" +" 'off' if no events should be sent,\n" +" 'system,call,log' to select which flags events should have to be sent.\n"; + +static int action_events(struct mansession *s, const struct message *m) +{ + const char *mask = astman_get_header(m, "EventMask"); + int res; + + res = set_eventmask(s, mask); + if (res > 0) + astman_send_response(s, m, "Success", "Events: On\r\n"); + else if (res == 0) + astman_send_response(s, m, "Success", "Events: Off\r\n"); + + return 0; +} + +static char mandescr_logoff[] = +"Description: Logoff this manager session\n" +"Variables: NONE\n"; + +static int action_logoff(struct mansession *s, const struct message *m) +{ + astman_send_response(s, m, "Goodbye", "Thanks for all the fish."); + return -1; +} + +static int action_login(struct mansession *s, const struct message *m) +{ + if (authenticate(s, m)) { + sleep(1); + astman_send_error(s, m, "Authentication failed"); + return -1; + } + s->authenticated = 1; + if (manager_displayconnects(s)) + ast_verb(2, "%sManager '%s' logged on from %s\n", (s->managerid ? "HTTP " : ""), s->username, ast_inet_ntoa(s->sin.sin_addr)); + ast_log(LOG_EVENT, "%sManager '%s' logged on from %s\n", (s->managerid ? "HTTP " : ""), s->username, ast_inet_ntoa(s->sin.sin_addr)); + astman_send_ack(s, m, "Authentication accepted"); + return 0; +} + +static int action_challenge(struct mansession *s, const struct message *m) +{ + const char *authtype = astman_get_header(m, "AuthType"); + + if (!strcasecmp(authtype, "MD5")) { + if (ast_strlen_zero(s->challenge)) + snprintf(s->challenge, sizeof(s->challenge), "%ld", ast_random()); + ast_mutex_lock(&s->__lock); + astman_start_ack(s, m); + astman_append(s, "Challenge: %s\r\n\r\n", s->challenge); + ast_mutex_unlock(&s->__lock); + } else { + astman_send_error(s, m, "Must specify AuthType"); + } + return 0; +} + +static char mandescr_hangup[] = +"Description: Hangup a channel\n" +"Variables: \n" +" Channel: The channel name to be hungup\n"; + +static int action_hangup(struct mansession *s, const struct message *m) +{ + struct ast_channel *c = NULL; + const char *name = astman_get_header(m, "Channel"); + if (ast_strlen_zero(name)) { + astman_send_error(s, m, "No channel specified"); + return 0; + } + c = ast_get_channel_by_name_locked(name); + if (!c) { + astman_send_error(s, m, "No such channel"); + return 0; + } + ast_softhangup(c, AST_SOFTHANGUP_EXPLICIT); + ast_channel_unlock(c); + astman_send_ack(s, m, "Channel Hungup"); + return 0; +} + +static char mandescr_setvar[] = +"Description: Set a global or local channel variable.\n" +"Variables: (Names marked with * are required)\n" +" Channel: Channel to set variable for\n" +" *Variable: Variable name\n" +" *Value: Value\n"; + +static int action_setvar(struct mansession *s, const struct message *m) +{ + struct ast_channel *c = NULL; + const char *name = astman_get_header(m, "Channel"); + const char *varname = astman_get_header(m, "Variable"); + const char *varval = astman_get_header(m, "Value"); + + if (ast_strlen_zero(varname)) { + astman_send_error(s, m, "No variable specified"); + return 0; + } + + if (!ast_strlen_zero(name)) { + c = ast_get_channel_by_name_locked(name); + if (!c) { + astman_send_error(s, m, "No such channel"); + return 0; + } + } + + pbx_builtin_setvar_helper(c, varname, S_OR(varval, "")); + + if (c) + ast_channel_unlock(c); + + astman_send_ack(s, m, "Variable Set"); + + return 0; +} + +static char mandescr_getvar[] = +"Description: Get the value of a global or local channel variable.\n" +"Variables: (Names marked with * are required)\n" +" Channel: Channel to read variable from\n" +" *Variable: Variable name\n" +" ActionID: Optional Action id for message matching.\n"; + +static int action_getvar(struct mansession *s, const struct message *m) +{ + struct ast_channel *c = NULL; + const char *name = astman_get_header(m, "Channel"); + const char *varname = astman_get_header(m, "Variable"); + char *varval; + char workspace[1024] = ""; + + if (ast_strlen_zero(varname)) { + astman_send_error(s, m, "No variable specified"); + return 0; + } + + if (!ast_strlen_zero(name)) { + c = ast_get_channel_by_name_locked(name); + if (!c) { + astman_send_error(s, m, "No such channel"); + return 0; + } + } + + if (varname[strlen(varname) - 1] == ')') { + ast_func_read(c, (char *) varname, workspace, sizeof(workspace)); + varval = workspace; + } else { + pbx_retrieve_variable(c, varname, &varval, workspace, sizeof(workspace), NULL); + } + + if (c) + ast_channel_unlock(c); + astman_start_ack(s, m); + astman_append(s, "Variable: %s\r\nValue: %s\r\n\r\n", varname, varval); + + return 0; +} + + +/*! \brief Manager "status" command to show channels */ +/* Needs documentation... */ +static int action_status(struct mansession *s, const struct message *m) +{ + const char *name = astman_get_header(m,"Channel"); + struct ast_channel *c; + char bridge[256]; + struct timeval now = ast_tvnow(); + long elapsed_seconds = 0; + int channels = 0; + int all = ast_strlen_zero(name); /* set if we want all channels */ + const char *id = astman_get_header(m,"ActionID"); + char idText[256] = ""; + + if (!ast_strlen_zero(id)) + snprintf(idText, sizeof(idText), "ActionID: %s\r\n", id); + + if (all) + c = ast_channel_walk_locked(NULL); + else { + c = ast_get_channel_by_name_locked(name); + if (!c) { + astman_send_error(s, m, "No such channel"); + return 0; + } + } + astman_send_ack(s, m, "Channel status will follow"); + + /* if we look by name, we break after the first iteration */ + while (c) { + channels++; + if (c->_bridge) + snprintf(bridge, sizeof(bridge), "BridgedChannel: %s\r\nBridgedUniqueid: %s\r\n", c->_bridge->name, c->_bridge->uniqueid); + else + bridge[0] = '\0'; + if (c->pbx) { + if (c->cdr) { + elapsed_seconds = now.tv_sec - c->cdr->start.tv_sec; + } + astman_append(s, + "Event: Status\r\n" + "Privilege: Call\r\n" + "Channel: %s\r\n" + "CallerIDNum: %s\r\n" + "CallerIDName: %s\r\n" + "Accountcode: %s\r\n" + "ChannelState: %d\r\n" + "ChannelStateDesc: %s\r\n" + "Context: %s\r\n" + "Extension: %s\r\n" + "Priority: %d\r\n" + "Seconds: %ld\r\n" + "%s" + "Uniqueid: %s\r\n" + "%s" + "\r\n", + c->name, + S_OR(c->cid.cid_num, ""), + S_OR(c->cid.cid_name, ""), + c->accountcode, + c->_state, + ast_state2str(c->_state), c->context, + c->exten, c->priority, (long)elapsed_seconds, bridge, c->uniqueid, idText); + } else { + astman_append(s, + "Event: Status\r\n" + "Privilege: Call\r\n" + "Channel: %s\r\n" + "CallerIDNum: %s\r\n" + "CallerIDName: %s\r\n" + "Account: %s\r\n" + "State: %s\r\n" + "%s" + "Uniqueid: %s\r\n" + "%s" + "\r\n", + c->name, + S_OR(c->cid.cid_num, "<unknown>"), + S_OR(c->cid.cid_name, "<unknown>"), + c->accountcode, + ast_state2str(c->_state), bridge, c->uniqueid, idText); + } + ast_channel_unlock(c); + if (!all) + break; + c = ast_channel_walk_locked(c); + } + astman_append(s, + "Event: StatusComplete\r\n" + "%s" + "Items: %d\r\n" + "\r\n",idText, channels); + return 0; +} + +static char mandescr_sendtext[] = +"Description: Sends A Text Message while in a call.\n" +"Variables: (Names marked with * are required)\n" +" *Channel: Channel to send message to\n" +" *Message: Message to send\n" +" ActionID: Optional Action id for message matching.\n"; + +static int action_sendtext(struct mansession *s, const struct message *m) +{ + struct ast_channel *c = NULL; + const char *name = astman_get_header(m, "Channel"); + const char *textmsg = astman_get_header(m, "Message"); + int res = 0; + + if (ast_strlen_zero(name)) { + astman_send_error(s, m, "No channel specified"); + return 0; + } + + if (ast_strlen_zero(textmsg)) { + astman_send_error(s, m, "No Message specified"); + return 0; + } + + c = ast_get_channel_by_name_locked(name); + if (!c) { + astman_send_error(s, m, "No such channel"); + return 0; + } + + res = ast_sendtext(c, textmsg); + ast_channel_unlock(c); + + if (res > 0) + astman_send_ack(s, m, "Success"); + else + astman_send_error(s, m, "Failure"); + + return res; +} + +static char mandescr_redirect[] = +"Description: Redirect (transfer) a call.\n" +"Variables: (Names marked with * are required)\n" +" *Channel: Channel to redirect\n" +" ExtraChannel: Second call leg to transfer (optional)\n" +" *Exten: Extension to transfer to\n" +" *Context: Context to transfer to\n" +" *Priority: Priority to transfer to\n" +" ActionID: Optional Action id for message matching.\n"; + +/*! \brief action_redirect: The redirect manager command */ +static int action_redirect(struct mansession *s, const struct message *m) +{ + const char *name = astman_get_header(m, "Channel"); + const char *name2 = astman_get_header(m, "ExtraChannel"); + const char *exten = astman_get_header(m, "Exten"); + const char *context = astman_get_header(m, "Context"); + const char *priority = astman_get_header(m, "Priority"); + struct ast_channel *chan, *chan2 = NULL; + int pi = 0; + int res; + + if (ast_strlen_zero(name)) { + astman_send_error(s, m, "Channel not specified"); + return 0; + } + if (!ast_strlen_zero(priority) && (sscanf(priority, "%d", &pi) != 1)) { + if ((pi = ast_findlabel_extension(NULL, context, exten, priority, NULL)) < 1) { + astman_send_error(s, m, "Invalid priority\n"); + return 0; + } + } + /* XXX watch out, possible deadlock - we are trying to get two channels!!! */ + chan = ast_get_channel_by_name_locked(name); + if (!chan) { + char buf[BUFSIZ]; + snprintf(buf, sizeof(buf), "Channel does not exist: %s", name); + astman_send_error(s, m, buf); + return 0; + } + if (ast_check_hangup(chan)) { + astman_send_error(s, m, "Redirect failed, channel not up.\n"); + ast_channel_unlock(chan); + return 0; + } + if (!ast_strlen_zero(name2)) + chan2 = ast_get_channel_by_name_locked(name2); + if (chan2 && ast_check_hangup(chan2)) { + astman_send_error(s, m, "Redirect failed, extra channel not up.\n"); + ast_channel_unlock(chan); + ast_channel_unlock(chan2); + return 0; + } + res = ast_async_goto(chan, context, exten, pi); + if (!res) { + if (!ast_strlen_zero(name2)) { + if (chan2) + res = ast_async_goto(chan2, context, exten, pi); + else + res = -1; + if (!res) + astman_send_ack(s, m, "Dual Redirect successful"); + else + astman_send_error(s, m, "Secondary redirect failed"); + } else + astman_send_ack(s, m, "Redirect successful"); + } else + astman_send_error(s, m, "Redirect failed"); + if (chan) + ast_channel_unlock(chan); + if (chan2) + ast_channel_unlock(chan2); + return 0; +} + +static char mandescr_command[] = +"Description: Run a CLI command.\n" +"Variables: (Names marked with * are required)\n" +" *Command: Asterisk CLI command to run\n" +" ActionID: Optional Action id for message matching.\n"; + +/*! \brief Manager command "command" - execute CLI command */ +static int action_command(struct mansession *s, const struct message *m) +{ + const char *cmd = astman_get_header(m, "Command"); + const char *id = astman_get_header(m, "ActionID"); + char *buf, *final_buf; + char template[] = "/tmp/ast-ami-XXXXXX"; /* template for temporary file */ + int fd = mkstemp(template), i = 0; + off_t l; + + for (i = 0; i < sizeof(command_blacklist) / sizeof(command_blacklist[0]); i++) { + if (!strncmp(cmd, command_blacklist[i], strlen(command_blacklist[i]))) { + astman_send_error(s, m, "Command blacklisted"); + return 0; + } + } + + astman_append(s, "Response: Follows\r\nPrivilege: Command\r\n"); + if (!ast_strlen_zero(id)) + astman_append(s, "ActionID: %s\r\n", id); + /* FIXME: Wedge a ActionID response in here, waiting for later changes */ + ast_cli_command(fd, cmd); /* XXX need to change this to use a FILE * */ + l = lseek(fd, 0, SEEK_END); /* how many chars available */ + + /* This has a potential to overflow the stack. Hence, use the heap. */ + buf = ast_calloc(1, l + 1); + final_buf = ast_calloc(1, l + 1); + if (buf) { + lseek(fd, 0, SEEK_SET); + read(fd, buf, l); + buf[l] = '\0'; + if (final_buf) { + term_strip(final_buf, buf, l); + final_buf[l] = '\0'; + } + astman_append(s, S_OR(final_buf, buf)); + ast_free(buf); + } + close(fd); + unlink(template); + astman_append(s, "--END COMMAND--\r\n\r\n"); + if (final_buf) + ast_free(final_buf); + return 0; +} + +/* helper function for originate */ +struct fast_originate_helper { + char tech[AST_MAX_EXTENSION]; + char data[AST_MAX_EXTENSION]; + int timeout; + char app[AST_MAX_APP]; + char appdata[AST_MAX_EXTENSION]; + char cid_name[AST_MAX_EXTENSION]; + char cid_num[AST_MAX_EXTENSION]; + char context[AST_MAX_CONTEXT]; + char exten[AST_MAX_EXTENSION]; + char idtext[AST_MAX_EXTENSION]; + char account[AST_MAX_ACCOUNT_CODE]; + int priority; + struct ast_variable *vars; +}; + +static void *fast_originate(void *data) +{ + struct fast_originate_helper *in = data; + int res; + int reason = 0; + struct ast_channel *chan = NULL; + char requested_channel[AST_CHANNEL_NAME]; + + if (!ast_strlen_zero(in->app)) { + res = ast_pbx_outgoing_app(in->tech, AST_FORMAT_SLINEAR, in->data, in->timeout, in->app, in->appdata, &reason, 1, + S_OR(in->cid_num, NULL), + S_OR(in->cid_name, NULL), + in->vars, in->account, &chan); + } else { + res = ast_pbx_outgoing_exten(in->tech, AST_FORMAT_SLINEAR, in->data, in->timeout, in->context, in->exten, in->priority, &reason, 1, + S_OR(in->cid_num, NULL), + S_OR(in->cid_name, NULL), + in->vars, in->account, &chan); + } + + if (!chan) + snprintf(requested_channel, AST_CHANNEL_NAME, "%s/%s", in->tech, in->data); + /* Tell the manager what happened with the channel */ + manager_event(EVENT_FLAG_CALL, "OriginateResponse", + "%s" + "Response: %s\r\n" + "Channel: %s\r\n" + "Context: %s\r\n" + "Exten: %s\r\n" + "Reason: %d\r\n" + "Uniqueid: %s\r\n" + "CallerIDNum: %s\r\n" + "CallerIDName: %s\r\n", + in->idtext, res ? "Failure" : "Success", chan ? chan->name : requested_channel, in->context, in->exten, reason, + chan ? chan->uniqueid : "<null>", + S_OR(in->cid_num, "<unknown>"), + S_OR(in->cid_name, "<unknown>") + ); + + /* Locked by ast_pbx_outgoing_exten or ast_pbx_outgoing_app */ + if (chan) + ast_channel_unlock(chan); + ast_free(in); + return NULL; +} + +static char mandescr_originate[] = +"Description: Generates an outgoing call to a Extension/Context/Priority or\n" +" Application/Data\n" +"Variables: (Names marked with * are required)\n" +" *Channel: Channel name to call\n" +" Exten: Extension to use (requires 'Context' and 'Priority')\n" +" Context: Context to use (requires 'Exten' and 'Priority')\n" +" Priority: Priority to use (requires 'Exten' and 'Context')\n" +" Application: Application to use\n" +" Data: Data to use (requires 'Application')\n" +" Timeout: How long to wait for call to be answered (in ms)\n" +" CallerID: Caller ID to be set on the outgoing channel\n" +" Variable: Channel variable to set, multiple Variable: headers are allowed\n" +" Account: Account code\n" +" Async: Set to 'true' for fast origination\n"; + +static int action_originate(struct mansession *s, const struct message *m) +{ + const char *name = astman_get_header(m, "Channel"); + const char *exten = astman_get_header(m, "Exten"); + const char *context = astman_get_header(m, "Context"); + const char *priority = astman_get_header(m, "Priority"); + const char *timeout = astman_get_header(m, "Timeout"); + const char *callerid = astman_get_header(m, "CallerID"); + const char *account = astman_get_header(m, "Account"); + const char *app = astman_get_header(m, "Application"); + const char *appdata = astman_get_header(m, "Data"); + const char *async = astman_get_header(m, "Async"); + const char *id = astman_get_header(m, "ActionID"); + struct ast_variable *vars = astman_get_variables(m); + char *tech, *data; + char *l = NULL, *n = NULL; + int pi = 0; + int res; + int to = 30000; + int reason = 0; + char tmp[256]; + char tmp2[256]; + + pthread_t th; + if (!name) { + astman_send_error(s, m, "Channel not specified"); + return 0; + } + if (!ast_strlen_zero(priority) && (sscanf(priority, "%d", &pi) != 1)) { + if ((pi = ast_findlabel_extension(NULL, context, exten, priority, NULL)) < 1) { + astman_send_error(s, m, "Invalid priority\n"); + return 0; + } + } + if (!ast_strlen_zero(timeout) && (sscanf(timeout, "%d", &to) != 1)) { + astman_send_error(s, m, "Invalid timeout\n"); + return 0; + } + ast_copy_string(tmp, name, sizeof(tmp)); + tech = tmp; + data = strchr(tmp, '/'); + if (!data) { + astman_send_error(s, m, "Invalid channel\n"); + return 0; + } + *data++ = '\0'; + ast_copy_string(tmp2, callerid, sizeof(tmp2)); + ast_callerid_parse(tmp2, &n, &l); + if (n) { + if (ast_strlen_zero(n)) + n = NULL; + } + if (l) { + ast_shrink_phone_number(l); + if (ast_strlen_zero(l)) + l = NULL; + } + if (ast_true(async)) { + struct fast_originate_helper *fast = ast_calloc(1, sizeof(*fast)); + if (!fast) { + res = -1; + } else { + if (!ast_strlen_zero(id)) + snprintf(fast->idtext, sizeof(fast->idtext), "ActionID: %s\r\n", id); + ast_copy_string(fast->tech, tech, sizeof(fast->tech)); + ast_copy_string(fast->data, data, sizeof(fast->data)); + ast_copy_string(fast->app, app, sizeof(fast->app)); + ast_copy_string(fast->appdata, appdata, sizeof(fast->appdata)); + if (l) + ast_copy_string(fast->cid_num, l, sizeof(fast->cid_num)); + if (n) + ast_copy_string(fast->cid_name, n, sizeof(fast->cid_name)); + fast->vars = vars; + ast_copy_string(fast->context, context, sizeof(fast->context)); + ast_copy_string(fast->exten, exten, sizeof(fast->exten)); + ast_copy_string(fast->account, account, sizeof(fast->account)); + fast->timeout = to; + fast->priority = pi; + if (ast_pthread_create_detached(&th, NULL, fast_originate, fast)) { + res = -1; + } else { + res = 0; + } + } + } else if (!ast_strlen_zero(app)) { + res = ast_pbx_outgoing_app(tech, AST_FORMAT_SLINEAR, data, to, app, appdata, &reason, 1, l, n, vars, account, NULL); + } else { + if (exten && context && pi) + res = ast_pbx_outgoing_exten(tech, AST_FORMAT_SLINEAR, data, to, context, exten, pi, &reason, 1, l, n, vars, account, NULL); + else { + astman_send_error(s, m, "Originate with 'Exten' requires 'Context' and 'Priority'"); + return 0; + } + } + if (!res) + astman_send_ack(s, m, "Originate successfully queued"); + else + astman_send_error(s, m, "Originate failed"); + return 0; +} + +/*! \brief Help text for manager command mailboxstatus + */ +static char mandescr_mailboxstatus[] = +"Description: Checks a voicemail account for status.\n" +"Variables: (Names marked with * are required)\n" +" *Mailbox: Full mailbox ID <mailbox>@<vm-context>\n" +" ActionID: Optional ActionID for message matching.\n" +"Returns number of messages.\n" +" Message: Mailbox Status\n" +" Mailbox: <mailboxid>\n" +" Waiting: <count>\n" +"\n"; + +static int action_mailboxstatus(struct mansession *s, const struct message *m) +{ + const char *mailbox = astman_get_header(m, "Mailbox"); + int ret; + + if (ast_strlen_zero(mailbox)) { + astman_send_error(s, m, "Mailbox not specified"); + return 0; + } + ret = ast_app_has_voicemail(mailbox, NULL); + astman_start_ack(s, m); + astman_append(s, "Message: Mailbox Status\r\n" + "Mailbox: %s\r\n" + "Waiting: %d\r\n\r\n", mailbox, ret); + return 0; +} + +static char mandescr_mailboxcount[] = +"Description: Checks a voicemail account for new messages.\n" +"Variables: (Names marked with * are required)\n" +" *Mailbox: Full mailbox ID <mailbox>@<vm-context>\n" +" ActionID: Optional ActionID for message matching.\n" +"Returns number of new and old messages.\n" +" Message: Mailbox Message Count\n" +" Mailbox: <mailboxid>\n" +" NewMessages: <count>\n" +" OldMessages: <count>\n" +"\n"; +static int action_mailboxcount(struct mansession *s, const struct message *m) +{ + const char *mailbox = astman_get_header(m, "Mailbox"); + int newmsgs = 0, oldmsgs = 0; + + if (ast_strlen_zero(mailbox)) { + astman_send_error(s, m, "Mailbox not specified"); + return 0; + } + ast_app_inboxcount(mailbox, &newmsgs, &oldmsgs); + astman_start_ack(s, m); + astman_append(s, "Message: Mailbox Message Count\r\n" + "Mailbox: %s\r\n" + "NewMessages: %d\r\n" + "OldMessages: %d\r\n" + "\r\n", + mailbox, newmsgs, oldmsgs); + return 0; +} + +static char mandescr_extensionstate[] = +"Description: Report the extension state for given extension.\n" +" If the extension has a hint, will use devicestate to check\n" +" the status of the device connected to the extension.\n" +"Variables: (Names marked with * are required)\n" +" *Exten: Extension to check state on\n" +" *Context: Context for extension\n" +" ActionId: Optional ID for this transaction\n" +"Will return an \"Extension Status\" message.\n" +"The response will include the hint for the extension and the status.\n"; + +static int action_extensionstate(struct mansession *s, const struct message *m) +{ + const char *exten = astman_get_header(m, "Exten"); + const char *context = astman_get_header(m, "Context"); + char hint[256] = ""; + int status; + if (ast_strlen_zero(exten)) { + astman_send_error(s, m, "Extension not specified"); + return 0; + } + if (ast_strlen_zero(context)) + context = "default"; + status = ast_extension_state(NULL, context, exten); + ast_get_hint(hint, sizeof(hint) - 1, NULL, 0, NULL, context, exten); + astman_start_ack(s, m); + astman_append(s, "Message: Extension Status\r\n" + "Exten: %s\r\n" + "Context: %s\r\n" + "Hint: %s\r\n" + "Status: %d\r\n\r\n", + exten, context, hint, status); + return 0; +} + +static char mandescr_timeout[] = +"Description: Hangup a channel after a certain time.\n" +"Variables: (Names marked with * are required)\n" +" *Channel: Channel name to hangup\n" +" *Timeout: Maximum duration of the call (sec)\n" +"Acknowledges set time with 'Timeout Set' message\n"; + +static int action_timeout(struct mansession *s, const struct message *m) +{ + struct ast_channel *c; + const char *name = astman_get_header(m, "Channel"); + int timeout = atoi(astman_get_header(m, "Timeout")); + + if (ast_strlen_zero(name)) { + astman_send_error(s, m, "No channel specified"); + return 0; + } + if (!timeout) { + astman_send_error(s, m, "No timeout specified"); + return 0; + } + c = ast_get_channel_by_name_locked(name); + if (!c) { + astman_send_error(s, m, "No such channel"); + return 0; + } + ast_channel_setwhentohangup(c, timeout); + ast_channel_unlock(c); + astman_send_ack(s, m, "Timeout Set"); + return 0; +} + +/*! + * Send any applicable events to the client listening on this socket. + * Wait only for a finite time on each event, and drop all events whether + * they are successfully sent or not. + */ +static int process_events(struct mansession *s) +{ + int ret = 0; + + ast_mutex_lock(&s->__lock); + if (s->f != NULL) { + struct eventqent *eqe; + + while ( (eqe = NEW_EVENT(s)) ) { + ref_event(eqe); + if (!ret && s->authenticated && + (s->readperm & eqe->category) == eqe->category && + (s->send_events & eqe->category) == eqe->category) { + if (send_string(s, eqe->eventdata) < 0) + ret = -1; /* don't send more */ + } + s->last_ev = unref_event(s->last_ev); + } + } + ast_mutex_unlock(&s->__lock); + return ret; +} + +static char mandescr_userevent[] = +"Description: Send an event to manager sessions.\n" +"Variables: (Names marked with * are required)\n" +" *UserEvent: EventStringToSend\n" +" Header1: Content1\n" +" HeaderN: ContentN\n"; + +static int action_userevent(struct mansession *s, const struct message *m) +{ + const char *event = astman_get_header(m, "UserEvent"); + char body[2048] = ""; + int x, bodylen = 0; + for (x = 0; x < m->hdrcount; x++) { + if (strncasecmp("UserEvent:", m->headers[x], strlen("UserEvent:"))) { + ast_copy_string(body + bodylen, m->headers[x], sizeof(body) - bodylen - 3); + bodylen += strlen(m->headers[x]); + ast_copy_string(body + bodylen, "\r\n", 3); + bodylen += 2; + } + } + + manager_event(EVENT_FLAG_USER, "UserEvent", "UserEvent: %s\r\n%s", event, body); + return 0; +} + +static char mandescr_coresettings[] = +"Description: Query for Core PBX settings.\n" +"Variables: (Names marked with * are optional)\n" +" *ActionID: ActionID of this transaction\n"; + +/*! \brief Show PBX core settings information */ +static int action_coresettings(struct mansession *s, const struct message *m) +{ + const char *actionid = astman_get_header(m, "ActionID"); + char idText[150] = ""; + + if (!ast_strlen_zero(actionid)) + snprintf(idText, sizeof(idText), "ActionID: %s\r\n", actionid); + + astman_append(s, "Response: Success\r\n" + "%s" + "AMIversion: %s\r\n" + "AsteriskVersion: %s\r\n" + "SystemName: %s\r\n" + "CoreMaxCalls: %d\r\n" + "CoreMaxLoadAvg: %f\r\n" + "CoreRunUser: %s\r\n" + "CoreRunGroup: %s\r\n" + "CoreMaxFilehandles: %d\r\n" + "CoreRealTimeEnabled: %s\r\n" + "CoreCDRenabled: %s\r\n" + "CoreHTTPenabled: %s\r\n" + , + idText, + AMI_VERSION, + ast_get_version(), + ast_config_AST_SYSTEM_NAME, + option_maxcalls, + option_maxload, + ast_config_AST_RUN_USER, + ast_config_AST_RUN_GROUP, + option_maxfiles, + ast_realtime_enabled() ? "Yes" : "No", + check_cdr_enabled() ? "Yes" : "No", + check_webmanager_enabled() ? "Yes" : "No" + ); + return 0; +} + +static char mandescr_corestatus[] = +"Description: Query for Core PBX status.\n" +"Variables: (Names marked with * are optional)\n" +" *ActionID: ActionID of this transaction\n"; + +/*! \brief Show PBX core status information */ +static int action_corestatus(struct mansession *s, const struct message *m) +{ + const char *actionid = astman_get_header(m, "ActionID"); + char idText[150]; + char startuptime[150]; + char reloadtime[150]; + struct ast_tm tm; + + if (!ast_strlen_zero(actionid)) + snprintf(idText, sizeof(idText), "ActionID: %s\r\n", actionid); + + ast_localtime(&ast_startuptime, &tm, NULL); + ast_strftime(startuptime, sizeof(startuptime), "%H:%M:%S", &tm); + ast_localtime(&ast_lastreloadtime, &tm, NULL); + ast_strftime(reloadtime, sizeof(reloadtime), "%H:%M:%S", &tm); + + astman_append(s, "Response: Success\r\n" + "%s" + "CoreStartupTime: %s\r\n" + "CoreReloadTime: %s\r\n" + "CoreCurrentCalls: %d\r\n" + "", + idText, + startuptime, + reloadtime, + ast_active_channels() + ); + return 0; +} + +static char mandescr_reload[] = +"Description: Send a reload event.\n" +"Variables: (Names marked with * are optional)\n" +" *ActionID: ActionID of this transaction\n" +" *Module: Name of the module to reload\n"; + +/*! \brief Send a reload event */ +static int action_reload(struct mansession *s, const struct message *m) +{ + const char *actionid = astman_get_header(m, "ActionID"); + const char *module = astman_get_header(m, "Module"); + int res = ast_module_reload(S_OR(module, NULL)); + char idText[80] = ""; + + if (!ast_strlen_zero(actionid)) + snprintf(idText, sizeof(idText), "ActionID: %s\r\n", actionid); + if (res == 2) + astman_append(s, "Response: Success\r\n%s", idText); + else + astman_send_error(s, m, s == 0 ? "No such module" : "Module does not support reload"); + return 0; +} + +static char mandescr_coreshowchannels[] = +"Description: List currently defined channels and some information\n" +" about them.\n" +"Variables:\n" +" ActionID: Optional Action id for message matching.\n"; + +/*! \brief Manager command "CoreShowChannels" - List currently defined channels + * and some information about them. */ +static int action_coreshowchannels(struct mansession *s, const struct message *m) +{ + const char *actionid = astman_get_header(m, "ActionID"); + char actionidtext[256] = ""; + struct ast_channel *c = NULL; + int numchans = 0; + int duration, durh, durm, durs; + + if (!ast_strlen_zero(actionid)) + snprintf(actionidtext, sizeof(actionidtext), "ActionID: %s\r\n", actionid); + + astman_send_listack(s, m, "Channels will follow", "start"); + + while ((c = ast_channel_walk_locked(c)) != NULL) { + struct ast_channel *bc = ast_bridged_channel(c); + char durbuf[10] = ""; + + if (c->cdr && !ast_tvzero(c->cdr->start)) { + duration = (int)(ast_tvdiff_ms(ast_tvnow(), c->cdr->start) / 1000); + durh = duration / 3600; + durm = (duration % 3600) / 60; + durs = duration % 60; + snprintf(durbuf, sizeof(durbuf), "%02d:%02d:%02d", durh, durm, durs); + } + + astman_append(s, + "Channel: %s\r\n" + "UniqueID: %s\r\n" + "Context: %s\r\n" + "Extension: %s\r\n" + "Priority: %d\r\n" + "ChannelState: %d\r\n" + "ChannelStateDesc: %s\r\n" + "Application: %s\r\n" + "ApplicationData: %s\r\n" + "CallerIDnum: %s\r\n" + "Duration: %s\r\n" + "AccountCode: %s\r\n" + "BridgedChannel: %s\r\n" + "BridgedUniqueID: %s\r\n" + "\r\n", c->name, c->uniqueid, c->context, c->exten, c->priority, c->_state, ast_state2str(c->_state), + c->appl ? c->appl : "", c->data ? S_OR(c->data, ""): "", + S_OR(c->cid.cid_num, ""), durbuf, S_OR(c->accountcode, ""), bc ? bc->name : "", bc ? bc->uniqueid : ""); + ast_channel_unlock(c); + numchans++; + } + + astman_append(s, + "Event: CoreShowChannelsComplete\r\n" + "EventList: Complete\r\n" + "ListItems: %d\r\n" + "%s" + "\r\n", numchans, actionidtext); + + return 0; +} + +static char mandescr_modulecheck[] = +"Description: Checks if Asterisk module is loaded\n" +"Variables: \n" +" ActionID: <id> Action ID for this transaction. Will be returned.\n" +" Module: <name> Asterisk module name (not including extension)\n" +"\n" +"Will return Success/Failure\n" +"For success returns, the module revision number is included.\n"; + +/* Manager function to check if module is loaded */ +static int manager_modulecheck(struct mansession *s, const struct message *m) +{ + int res; + const char *module = astman_get_header(m, "Module"); + const char *id = astman_get_header(m,"ActionID"); + char idText[BUFSIZ]; + const char *version; + char filename[BUFSIZ/2]; + char *cut; + + snprintf(filename, sizeof(filename), module); + if ((cut = strchr(filename, '.'))) { + *cut = '\0'; + } else { + cut = filename + strlen(filename); + } + sprintf(cut, ".so"); + ast_log(LOG_DEBUG, "**** ModuleCheck .so file %s\n", filename); + res = ast_module_check(filename); + if (!res) { + astman_send_error(s, m, "Module not loaded"); + return 0; + } + sprintf(cut, ".c"); + ast_log(LOG_DEBUG, "**** ModuleCheck .c file %s\n", filename); + version = ast_file_version_find(filename); + + if (!ast_strlen_zero(id)) + snprintf(idText, sizeof(idText), "ActionID: %s\r\n", id); + astman_append(s, "Response: Success\r\n%s", idText); + astman_append(s, "Version: %s\r\n\r\n", version ? version : ""); + return 0; +} + +static char mandescr_moduleload[] = +"Description: Loads, unloads or reloads an Asterisk module in a running system.\n" +"Variables: \n" +" ActionID: <id> Action ID for this transaction. Will be returned.\n" +" Module: <name> Asterisk module name (including .so extension)\n" +" or subsystem identifier:\n" +" cdr, enum, dnsmgr, extconfig, manager, rtp, http\n" +" LoadType: load | unload | reload\n" +" The operation to be done on module\n" +" If no module is specified for a reload loadtype, all modules are reloaded"; + +static int manager_moduleload(struct mansession *s, const struct message *m) +{ + int res; + const char *module = astman_get_header(m, "Module"); + const char *loadtype = astman_get_header(m, "LoadType"); + + if (!loadtype || strlen(loadtype) == 0) + astman_send_error(s, m, "Incomplete ModuleLoad action."); + if ((!module || strlen(module) == 0) && strcasecmp(loadtype, "reload") != 0) + astman_send_error(s, m, "Need module name"); + + if (!strcasecmp(loadtype, "load")) { + res = ast_load_resource(module); + if (res) + astman_send_error(s, m, "Could not load module."); + else + astman_send_ack(s, m, "Module loaded."); + } else if (!strcasecmp(loadtype, "unload")) { + res = ast_unload_resource(module, AST_FORCE_SOFT); + if (res) + astman_send_error(s, m, "Could not unload module."); + else + astman_send_ack(s, m, "Module unloaded."); + } else if (!strcasecmp(loadtype, "reload")) { + if (module != NULL) { + res = ast_module_reload(module); + if (res == 0) + astman_send_error(s, m, "No such module."); + else if (res == 1) + astman_send_error(s, m, "Module does not support reload action."); + else + astman_send_ack(s, m, "Module reloaded."); + } else { + ast_module_reload(NULL); /* Reload all modules */ + astman_send_ack(s, m, "All modules reloaded"); + } + } else + astman_send_error(s, m, "Incomplete ModuleLoad action."); + return 0; +} + +/* + * Done with the action handlers here, we start with the code in charge + * of accepting connections and serving them. + * accept_thread() forks a new thread for each connection, session_do(), + * which in turn calls get_input() repeatedly until a full message has + * been accumulated, and then invokes process_message() to pass it to + * the appropriate handler. + */ + +/* + * Process an AMI message, performing desired action. + * Return 0 on success, -1 on error that require the session to be destroyed. + */ +static int process_message(struct mansession *s, const struct message *m) +{ + char action[80] = ""; + int ret = 0; + struct manager_action *tmp; + const char *user = astman_get_header(m, "Username"); + + ast_copy_string(action, astman_get_header(m, "Action"), sizeof(action)); + ast_debug(1, "Manager received command '%s'\n", action); + + if (ast_strlen_zero(action)) { + ast_mutex_lock(&s->__lock); + astman_send_error(s, m, "Missing action in request"); + ast_mutex_unlock(&s->__lock); + return 0; + } + + if (!s->authenticated && strcasecmp(action, "Login") && strcasecmp(action, "Logoff") && strcasecmp(action, "Challenge")) { + ast_mutex_lock(&s->__lock); + astman_send_error(s, m, "Permission denied"); + ast_mutex_unlock(&s->__lock); + return 0; + } + + if (!allowmultiplelogin && !s->authenticated && user && + (!strcasecmp(action, "Login") || !strcasecmp(action, "Challenge"))) { + if (check_manager_session_inuse(user)) { + sleep(1); + ast_mutex_lock(&s->__lock); + astman_send_error(s, m, "Login Already In Use"); + ast_mutex_unlock(&s->__lock); + return -1; + } + } + + AST_RWLIST_RDLOCK(&actions); + AST_RWLIST_TRAVERSE(&actions, tmp, list) { + if (strcasecmp(action, tmp->action)) + continue; + if (s->writeperm & tmp->authority || tmp->authority == 0) + ret = tmp->func(s, m); + else + astman_send_error(s, m, "Permission denied"); + break; + } + AST_RWLIST_UNLOCK(&actions); + + if (!tmp) { + char buf[BUFSIZ]; + snprintf(buf, sizeof(buf), "Invalid/unknown command: %s. Use Action: ListCommands to show available commands.", action); + ast_mutex_lock(&s->__lock); + astman_send_error(s, m, buf); + ast_mutex_unlock(&s->__lock); + } + if (ret) + return ret; + /* Once done with our message, deliver any pending events */ + return process_events(s); +} + +/*! + * Read one full line (including crlf) from the manager socket. + * \note \verbatim + * \r\n is the only valid terminator for the line. + * (Note that, later, '\0' will be considered as the end-of-line marker, + * so everything between the '\0' and the '\r\n' will not be used). + * Also note that we assume output to have at least "maxlen" space. + * \endverbatim + */ +static int get_input(struct mansession *s, char *output) +{ + int res, x; + int maxlen = sizeof(s->inbuf) - 1; + char *src = s->inbuf; + + /* + * Look for \r\n within the buffer. If found, copy to the output + * buffer and return, trimming the \r\n (not used afterwards). + */ + for (x = 0; x < s->inlen; x++) { + int cr; /* set if we have \r */ + if (src[x] == '\r' && x+1 < s->inlen && src[x+1] == '\n') + cr = 2; /* Found. Update length to include \r\n */ + else if (src[x] == '\n') + cr = 1; /* also accept \n only */ + else + continue; + memmove(output, src, x); /*... but trim \r\n */ + output[x] = '\0'; /* terminate the string */ + x += cr; /* number of bytes used */ + s->inlen -= x; /* remaining size */ + memmove(src, src + x, s->inlen); /* remove used bytes */ + return 1; + } + if (s->inlen >= maxlen) { + /* no crlf found, and buffer full - sorry, too long for us */ + ast_log(LOG_WARNING, "Dumping long line with no return from %s: %s\n", ast_inet_ntoa(s->sin.sin_addr), src); + s->inlen = 0; + } + res = 0; + while (res == 0) { + /* XXX do we really need this locking ? */ + ast_mutex_lock(&s->__lock); + s->waiting_thread = pthread_self(); + ast_mutex_unlock(&s->__lock); + + res = ast_wait_for_input(s->fd, -1); /* return 0 on timeout ? */ + + ast_mutex_lock(&s->__lock); + s->waiting_thread = AST_PTHREADT_NULL; + ast_mutex_unlock(&s->__lock); + } + if (res < 0) { + /* If we get a signal from some other thread (typically because + * there are new events queued), return 0 to notify the caller. + */ + if (errno == EINTR) + return 0; + ast_log(LOG_WARNING, "poll() returned error: %s\n", strerror(errno)); + return -1; + } + ast_mutex_lock(&s->__lock); + res = fread(src + s->inlen, 1, maxlen - s->inlen, s->f); + if (res < 1) + res = -1; /* error return */ + else { + s->inlen += res; + src[s->inlen] = '\0'; + res = 0; + } + ast_mutex_unlock(&s->__lock); + return res; +} + +static int do_message(struct mansession *s) +{ + struct message m = { 0 }; + char header_buf[sizeof(s->inbuf)] = { '\0' }; + int res; + + for (;;) { + /* Check if any events are pending and do them if needed */ + if (process_events(s)) + return -1; + res = get_input(s, header_buf); + if (res == 0) { + continue; + } else if (res > 0) { + if (ast_strlen_zero(header_buf)) + return process_message(s, &m) ? -1 : 0; + else if (m.hdrcount < (AST_MAX_MANHEADERS - 1)) + m.headers[m.hdrcount++] = ast_strdupa(header_buf); + } else { + return res; + } + } +} + +/*! \brief The body of the individual manager session. + * Call get_input() to read one line at a time + * (or be woken up on new events), collect the lines in a + * message until found an empty line, and execute the request. + * In any case, deliver events asynchronously through process_events() + * (called from here if no line is available, or at the end of + * process_message(). ) + */ +static void *session_do(void *data) +{ + struct server_instance *ser = data; + struct mansession *s = ast_calloc(1, sizeof(*s)); + int flags; + int res; + + if (s == NULL) + goto done; + + s->writetimeout = 100; + s->waiting_thread = AST_PTHREADT_NULL; + + flags = fcntl(ser->fd, F_GETFL); + if (!block_sockets) /* make sure socket is non-blocking */ + flags |= O_NONBLOCK; + else + flags &= ~O_NONBLOCK; + fcntl(ser->fd, F_SETFL, flags); + + ast_mutex_init(&s->__lock); + s->send_events = -1; + /* these fields duplicate those in the 'ser' structure */ + s->fd = ser->fd; + s->f = ser->f; + s->sin = ser->requestor; + + AST_LIST_LOCK(&sessions); + AST_LIST_INSERT_HEAD(&sessions, s, list); + ast_atomic_fetchadd_int(&num_sessions, 1); + AST_LIST_UNLOCK(&sessions); + /* Hook to the tail of the event queue */ + s->last_ev = grab_last(); + s->f = ser->f; + astman_append(s, "Asterisk Call Manager/%s\r\n", AMI_VERSION); /* welcome prompt */ + for (;;) { + if ((res = do_message(s)) < 0) + break; + } + /* session is over, explain why and terminate */ + if (s->authenticated) { + if (manager_displayconnects(s)) + ast_verb(2, "Manager '%s' logged off from %s\n", s->username, ast_inet_ntoa(s->sin.sin_addr)); + ast_log(LOG_EVENT, "Manager '%s' logged off from %s\n", s->username, ast_inet_ntoa(s->sin.sin_addr)); + } else { + if (displayconnects) + ast_verb(2, "Connect attempt from '%s' unable to authenticate\n", ast_inet_ntoa(s->sin.sin_addr)); + ast_log(LOG_EVENT, "Failed attempt from %s\n", ast_inet_ntoa(s->sin.sin_addr)); + } + + /* It is possible under certain circumstances for this session thread + to complete its work and exit *before* the thread that created it + has finished executing the ast_pthread_create_background() function. + If this occurs, some versions of glibc appear to act in a buggy + fashion and attempt to write data into memory that it thinks belongs + to the thread but is in fact not owned by the thread (or may have + been freed completely). + + Causing this thread to yield to other threads at least one time + appears to work around this bug. + */ + usleep(1); + + destroy_session(s); + +done: + ast_free(ser); + return NULL; +} + +/*! \brief remove at most n_max stale session from the list. */ +static void purge_sessions(int n_max) +{ + struct mansession *s; + time_t now = time(NULL); + + AST_LIST_LOCK(&sessions); + AST_LIST_TRAVERSE_SAFE_BEGIN(&sessions, s, list) { + if (s->sessiontimeout && (now > s->sessiontimeout) && !s->inuse) { + AST_LIST_REMOVE_CURRENT(list); + ast_atomic_fetchadd_int(&num_sessions, -1); + if (s->authenticated && (VERBOSITY_ATLEAST(2)) && manager_displayconnects(s)) { + ast_verb(2, "HTTP Manager '%s' timed out from %s\n", + s->username, ast_inet_ntoa(s->sin.sin_addr)); + } + free_session(s); /* XXX outside ? */ + if (--n_max <= 0) + break; + } + } + AST_LIST_TRAVERSE_SAFE_END; + AST_LIST_UNLOCK(&sessions); +} + +/* + * events are appended to a queue from where they + * can be dispatched to clients. + */ +static int append_event(const char *str, int category) +{ + struct eventqent *tmp = ast_malloc(sizeof(*tmp) + strlen(str)); + static int seq; /* sequence number */ + + if (!tmp) + return -1; + + /* need to init all fields, because ast_malloc() does not */ + tmp->usecount = 0; + tmp->category = category; + tmp->seq = ast_atomic_fetchadd_int(&seq, 1); + AST_LIST_NEXT(tmp, eq_next) = NULL; + strcpy(tmp->eventdata, str); + + AST_LIST_LOCK(&all_events); + AST_LIST_INSERT_TAIL(&all_events, tmp, eq_next); + AST_LIST_UNLOCK(&all_events); + + return 0; +} + +/* XXX see if can be moved inside the function */ +AST_THREADSTORAGE(manager_event_buf); +#define MANAGER_EVENT_BUF_INITSIZE 256 + +/*! \brief manager_event: Send AMI event to client */ +int __manager_event(int category, const char *event, + const char *file, int line, const char *func, const char *fmt, ...) +{ + struct mansession *s; + struct manager_custom_hook *hook; + struct ast_str *auth = ast_str_alloca(80); + const char *cat_str; + va_list ap; + struct timeval now; + struct ast_str *buf; + + /* Abort if there aren't any manager sessions */ + if (!num_sessions) + return 0; + + if (!(buf = ast_str_thread_get(&manager_event_buf, MANAGER_EVENT_BUF_INITSIZE))) + return -1; + + cat_str = authority_to_str(category, &auth); + ast_str_set(&buf, 0, + "Event: %s\r\nPrivilege: %s\r\n", + event, cat_str); + + if (timestampevents) { + now = ast_tvnow(); + ast_str_append(&buf, 0, + "Timestamp: %ld.%06lu\r\n", + now.tv_sec, (unsigned long) now.tv_usec); + } + if (manager_debug) { + static int seq; + ast_str_append(&buf, 0, + "SequenceNumber: %d\r\n", + ast_atomic_fetchadd_int(&seq, 1)); + ast_str_append(&buf, 0, + "File: %s\r\nLine: %d\r\nFunc: %s\r\n", file, line, func); + } + + va_start(ap, fmt); + ast_str_append_va(&buf, 0, fmt, ap); + va_end(ap); + + ast_str_append(&buf, 0, "\r\n"); + + append_event(buf->str, category); + + /* Wake up any sleeping sessions */ + AST_LIST_LOCK(&sessions); + AST_LIST_TRAVERSE(&sessions, s, list) { + ast_mutex_lock(&s->__lock); + if (s->waiting_thread != AST_PTHREADT_NULL) + pthread_kill(s->waiting_thread, SIGURG); + ast_mutex_unlock(&s->__lock); + } + AST_LIST_UNLOCK(&sessions); + + AST_RWLIST_RDLOCK(&manager_hooks); + AST_RWLIST_TRAVERSE(&manager_hooks, hook, list) { + hook->helper(category, event, buf->str); + } + AST_RWLIST_UNLOCK(&manager_hooks); + + return 0; +} + +/* + * support functions to register/unregister AMI action handlers, + */ +int ast_manager_unregister(char *action) +{ + struct manager_action *cur; + + AST_RWLIST_WRLOCK(&actions); + AST_RWLIST_TRAVERSE_SAFE_BEGIN(&actions, cur, list) { + if (!strcasecmp(action, cur->action)) { + AST_RWLIST_REMOVE_CURRENT(list); + ast_free(cur); + ast_verb(2, "Manager unregistered action %s\n", action); + break; + } + } + AST_RWLIST_TRAVERSE_SAFE_END; + AST_RWLIST_UNLOCK(&actions); + + return 0; +} + +static int manager_state_cb(char *context, char *exten, int state, void *data) +{ + /* Notify managers of change */ + char hint[BUFSIZ]; + ast_get_hint(hint, sizeof(hint), NULL, 0, NULL, context, exten); + + manager_event(EVENT_FLAG_CALL, "ExtensionStatus", "Exten: %s\r\nContext: %s\r\nHint: %s\r\nStatus: %d\r\n", exten, context, hint, state); + return 0; +} + +static int ast_manager_register_struct(struct manager_action *act) +{ + struct manager_action *cur, *prev = NULL; + + AST_RWLIST_WRLOCK(&actions); + AST_RWLIST_TRAVERSE(&actions, cur, list) { + int ret = strcasecmp(cur->action, act->action); + if (ret == 0) { + ast_log(LOG_WARNING, "Manager: Action '%s' already registered\n", act->action); + AST_RWLIST_UNLOCK(&actions); + return -1; + } + if (ret > 0) { /* Insert these alphabetically */ + prev = cur; + break; + } + } + + if (prev) + AST_RWLIST_INSERT_AFTER(&actions, prev, act, list); + else + AST_RWLIST_INSERT_HEAD(&actions, act, list); + + ast_verb(2, "Manager registered action %s\n", act->action); + + AST_RWLIST_UNLOCK(&actions); + + return 0; +} + +/*! \brief register a new command with manager, including online help. This is + the preferred way to register a manager command */ +int ast_manager_register2(const char *action, int auth, int (*func)(struct mansession *s, const struct message *m), const char *synopsis, const char *description) +{ + struct manager_action *cur = NULL; + + if (!(cur = ast_calloc(1, sizeof(*cur)))) + return -1; + + cur->action = action; + cur->authority = auth; + cur->func = func; + cur->synopsis = synopsis; + cur->description = description; + + ast_manager_register_struct(cur); + + return 0; +} +/*! @} + END Doxygen group */ + +/* + * The following are support functions for AMI-over-http. + * The common entry point is generic_http_callback(), + * which extracts HTTP header and URI fields and reformats + * them into AMI messages, locates a proper session + * (using the mansession_id Cookie or GET variable), + * and calls process_message() as for regular AMI clients. + * When done, the output (which goes to a temporary file) + * is read back into a buffer and reformatted as desired, + * then fed back to the client over the original socket. + */ + +enum output_format { + FORMAT_RAW, + FORMAT_HTML, + FORMAT_XML, +}; + +static char *contenttype[] = { + [FORMAT_RAW] = "plain", + [FORMAT_HTML] = "html", + [FORMAT_XML] = "xml", +}; + +/*! + * locate an http session in the list. The search key (ident) is + * the value of the mansession_id cookie (0 is not valid and means + * a session on the AMI socket). + */ +static struct mansession *find_session(unsigned long ident) +{ + struct mansession *s; + + if (ident == 0) + return NULL; + + AST_LIST_LOCK(&sessions); + AST_LIST_TRAVERSE(&sessions, s, list) { + ast_mutex_lock(&s->__lock); + if (s->managerid == ident && !s->needdestroy) { + ast_atomic_fetchadd_int(&s->inuse, 1); + break; + } + ast_mutex_unlock(&s->__lock); + } + AST_LIST_UNLOCK(&sessions); + + return s; +} + +int astman_verify_session_readpermissions(unsigned long ident, int perm) +{ + int result = 0; + struct mansession *s; + + AST_LIST_LOCK(&sessions); + AST_LIST_TRAVERSE(&sessions, s, list) { + ast_mutex_lock(&s->__lock); + if ((s->managerid == ident) && (s->readperm & perm)) { + result = 1; + ast_mutex_unlock(&s->__lock); + break; + } + ast_mutex_unlock(&s->__lock); + } + AST_LIST_UNLOCK(&sessions); + return result; +} + +int astman_verify_session_writepermissions(unsigned long ident, int perm) +{ + int result = 0; + struct mansession *s; + + AST_LIST_LOCK(&sessions); + AST_LIST_TRAVERSE(&sessions, s, list) { + ast_mutex_lock(&s->__lock); + if ((s->managerid == ident) && (s->writeperm & perm)) { + result = 1; + ast_mutex_unlock(&s->__lock); + break; + } + ast_mutex_unlock(&s->__lock); + } + AST_LIST_UNLOCK(&sessions); + return result; +} + +/* + * convert to xml with various conversion: + * mode & 1 -> lowercase; + * mode & 2 -> replace non-alphanumeric chars with underscore + */ +static void xml_copy_escape(struct ast_str **out, const char *src, int mode) +{ + /* store in a local buffer to avoid calling ast_str_append too often */ + char buf[256]; + char *dst = buf; + int space = sizeof(buf); + /* repeat until done and nothing to flush */ + for ( ; *src || dst != buf ; src++) { + if (*src == '\0' || space < 10) { /* flush */ + *dst++ = '\0'; + ast_str_append(out, 0, "%s", buf); + dst = buf; + space = sizeof(buf); + if (*src == '\0') + break; + } + + if ( (mode & 2) && !isalnum(*src)) { + *dst++ = '_'; + space--; + continue; + } + switch (*src) { + case '<': + strcpy(dst, "<"); + dst += 4; + space -= 4; + break; + case '>': + strcpy(dst, ">"); + dst += 4; + space -= 4; + break; + case '\"': + strcpy(dst, """); + dst += 6; + space -= 6; + break; + case '\'': + strcpy(dst, "'"); + dst += 6; + space -= 6; + break; + case '&': + strcpy(dst, "&"); + dst += 5; + space -= 5; + break; + + default: + *dst++ = mode ? tolower(*src) : *src; + space--; + } + } +} + +struct variable_count { + char *varname; + int count; +}; + +static int compress_char(char c) +{ + c &= 0x7f; + if (c < 32) + return 0; + else if (c >= 'a' && c <= 'z') + return c - 64; + else if (c > 'z') + return '_'; + else + return c - 32; +} + +static int variable_count_hash_fn(const void *vvc, const int flags) +{ + const struct variable_count *vc = vvc; + int res = 0, i; + for (i = 0; i < 5; i++) { + if (vc->varname[i] == '\0') + break; + res += compress_char(vc->varname[i]) << (i * 6); + } + return res; +} + +static int variable_count_cmp_fn(void *obj, void *vstr, int flags) +{ + /* Due to the simplicity of struct variable_count, it makes no difference + * if you pass in objects or strings, the same operation applies. This is + * due to the fact that the hash occurs on the first element, which means + * the address of both the struct and the string are exactly the same. */ + struct variable_count *vc = obj; + char *str = vstr; + return !strcmp(vc->varname, str) ? CMP_MATCH : 0; +} + +/*! \brief Convert the input into XML or HTML. + * The input is supposed to be a sequence of lines of the form + * Name: value + * optionally followed by a blob of unformatted text. + * A blank line is a section separator. Basically, this is a + * mixture of the format of Manager Interface and CLI commands. + * The unformatted text is considered as a single value of a field + * named 'Opaque-data'. + * + * At the moment the output format is the following (but it may + * change depending on future requirements so don't count too + * much on it when writing applications): + * + * General: the unformatted text is used as a value of + * XML output: to be completed + * + * \verbatim + * Each section is within <response type="object" id="xxx"> + * where xxx is taken from ajaxdest variable or defaults to unknown + * Each row is reported as an attribute Name="value" of an XML + * entity named from the variable ajaxobjtype, default to "generic" + * \endverbatim + * + * HTML output: + * each Name-value pair is output as a single row of a two-column table. + * Sections (blank lines in the input) are separated by a <HR> + * + */ +static void xml_translate(struct ast_str **out, char *in, struct ast_variable *vars, enum output_format format) +{ + struct ast_variable *v; + const char *dest = NULL; + char *var, *val; + const char *objtype = NULL; + int in_data = 0; /* parsing data */ + int inobj = 0; + int xml = (format == FORMAT_XML); + struct variable_count *vc = NULL; + struct ao2_container *vco = NULL; + + for (v = vars; v; v = v->next) { + if (!dest && !strcasecmp(v->name, "ajaxdest")) + dest = v->value; + else if (!objtype && !strcasecmp(v->name, "ajaxobjtype")) + objtype = v->value; + } + if (!dest) + dest = "unknown"; + if (!objtype) + objtype = "generic"; + + /* we want to stop when we find an empty line */ + while (in && *in) { + val = strsep(&in, "\r\n"); /* mark start and end of line */ + if (in && *in == '\n') /* remove trailing \n if any */ + in++; + ast_trim_blanks(val); + ast_debug(5, "inobj %d in_data %d line <%s>\n", inobj, in_data, val); + if (ast_strlen_zero(val)) { + if (in_data) { /* close data */ + ast_str_append(out, 0, xml ? "'" : "</td></tr>\n"); + in_data = 0; + } + ast_str_append(out, 0, xml ? " /></response>\n" : + "<tr><td colspan=\"2\"><hr></td></tr>\r\n"); + inobj = 0; + ao2_ref(vco, -1); + vco = NULL; + continue; + } + + /* we expect Name: value lines */ + if (in_data) { + var = NULL; + } else { + var = strsep(&val, ":"); + if (val) { /* found the field name */ + val = ast_skip_blanks(val); + ast_trim_blanks(var); + } else { /* field name not found, move to opaque mode */ + val = var; + var = "Opaque-data"; + } + } + + if (!inobj) { + if (xml) + ast_str_append(out, 0, "<response type='object' id='%s'><%s", dest, objtype); + else + ast_str_append(out, 0, "<body>\n"); + vco = ao2_container_alloc(37, variable_count_hash_fn, variable_count_cmp_fn); + inobj = 1; + } + + if (!in_data) { /* build appropriate line start */ + ast_str_append(out, 0, xml ? " " : "<tr><td>"); + if ((vc = ao2_find(vco, var, 0))) + vc->count++; + else { + /* Create a new entry for this one */ + vc = ao2_alloc(sizeof(*vc), NULL); + vc->varname = var; + vc->count = 1; + ao2_link(vco, vc); + } + xml_copy_escape(out, var, xml ? 1 | 2 : 0); + if (vc->count > 1) + ast_str_append(out, 0, "-%d", vc->count); + ao2_ref(vc, -1); + ast_str_append(out, 0, xml ? "='" : "</td><td>"); + if (!strcmp(var, "Opaque-data")) + in_data = 1; + } + xml_copy_escape(out, val, 0); /* data field */ + if (!in_data) + ast_str_append(out, 0, xml ? "'" : "</td></tr>\n"); + else + ast_str_append(out, 0, xml ? "\n" : "<br>\n"); + } + if (inobj) { + ast_str_append(out, 0, xml ? " /></response>\n" : + "<tr><td colspan=\"2\"><hr></td></tr>\r\n"); + ao2_ref(vco, -1); + } +} + +static struct ast_str *generic_http_callback(enum output_format format, + struct sockaddr_in *requestor, const char *uri, + struct ast_variable *params, int *status, + char **title, int *contentlength) +{ + struct mansession *s = NULL; + unsigned long ident = 0; /* invalid, so find_session will fail if not set through the cookie */ + int blastaway = 0; + struct ast_variable *v; + char template[] = "/tmp/ast-http-XXXXXX"; /* template for temporary file */ + struct ast_str *out = NULL; + struct message m = { 0 }; + unsigned int x; + size_t hdrlen; + + for (v = params; v; v = v->next) { + if (!strcasecmp(v->name, "mansession_id")) { + sscanf(v->value, "%lx", &ident); + break; + } + } + + if (!(s = find_session(ident))) { + /* Create new session. + * While it is not in the list we don't need any locking + */ + if (!(s = ast_calloc(1, sizeof(*s)))) { + *status = 500; + goto generic_callback_out; + } + s->sin = *requestor; + s->fd = -1; + s->waiting_thread = AST_PTHREADT_NULL; + s->send_events = 0; + ast_mutex_init(&s->__lock); + ast_mutex_lock(&s->__lock); + s->inuse = 1; + s->managerid = rand() | 1; /* make sure it is non-zero */ + s->last_ev = grab_last(); + AST_LIST_LOCK(&sessions); + AST_LIST_INSERT_HEAD(&sessions, s, list); + ast_atomic_fetchadd_int(&num_sessions, 1); + AST_LIST_UNLOCK(&sessions); + } + + ast_mutex_unlock(&s->__lock); + + if (!(out = ast_str_create(1024))) { + *status = 500; + goto generic_callback_out; + } + + s->fd = mkstemp(template); /* create a temporary file for command output */ + unlink(template); + s->f = fdopen(s->fd, "w+"); + + for (x = 0, v = params; v && (x < AST_MAX_MANHEADERS); x++, v = v->next) { + hdrlen = strlen(v->name) + strlen(v->value) + 3; + m.headers[m.hdrcount] = alloca(hdrlen); + snprintf((char *) m.headers[m.hdrcount], hdrlen, "%s: %s", v->name, v->value); + m.hdrcount = x + 1; + } + + if (process_message(s, &m)) { + if (s->authenticated) { + if (manager_displayconnects(s)) + ast_verb(2, "HTTP Manager '%s' logged off from %s\n", s->username, ast_inet_ntoa(s->sin.sin_addr)); + ast_log(LOG_EVENT, "HTTP Manager '%s' logged off from %s\n", s->username, ast_inet_ntoa(s->sin.sin_addr)); + } else { + if (displayconnects) + ast_verb(2, "HTTP Connect attempt from '%s' unable to authenticate\n", ast_inet_ntoa(s->sin.sin_addr)); + ast_log(LOG_EVENT, "HTTP Failed attempt from %s\n", ast_inet_ntoa(s->sin.sin_addr)); + } + s->needdestroy = 1; + } + + ast_str_append(&out, 0, + "Content-type: text/%s\r\n" + "Cache-Control: no-cache;\r\n" + "Set-Cookie: mansession_id=\"%08lx\"; Version=\"1\"; Max-Age=%d\r\n" + "\r\n", + contenttype[format], + s->managerid, httptimeout); + + if (format == FORMAT_XML) { + ast_str_append(&out, 0, "<ajax-response>\n"); + } else if (format == FORMAT_HTML) { + +#define ROW_FMT "<tr><td colspan=\"2\" bgcolor=\"#f1f1ff\">%s</td></tr>\r\n" +#define TEST_STRING \ + "<form action=\"manager\">action: <input name=\"action\"> cmd <input name=\"command\"><br> \ + user <input name=\"username\"> pass <input type=\"password\" name=\"secret\"><br> \ + <input type=\"submit\"></form>" + + ast_str_append(&out, 0, "<title>Asterisk™ Manager Interface</title>"); + ast_str_append(&out, 0, "<body bgcolor=\"#ffffff\"><table align=center bgcolor=\"#f1f1f1\" width=\"500\">\r\n"); + ast_str_append(&out, 0, ROW_FMT, "<h1>Manager Tester</h1>"); + ast_str_append(&out, 0, ROW_FMT, TEST_STRING); + } + + if (s->f != NULL) { /* have temporary output */ + char *buf; + size_t l = ftell(s->f); + + if (l) { + if ((buf = mmap(NULL, l, PROT_READ | PROT_WRITE, MAP_SHARED, s->fd, 0))) { + if (format == FORMAT_XML || format == FORMAT_HTML) + xml_translate(&out, buf, params, format); + else + ast_str_append(&out, 0, buf); + munmap(buf, l); + } + } else if (format == FORMAT_XML || format == FORMAT_HTML) { + xml_translate(&out, "", params, format); + } + fclose(s->f); + s->f = NULL; + s->fd = -1; + } + + if (format == FORMAT_XML) { + ast_str_append(&out, 0, "</ajax-response>\n"); + } else if (format == FORMAT_HTML) + ast_str_append(&out, 0, "</table></body>\r\n"); + + ast_mutex_lock(&s->__lock); + /* Reset HTTP timeout. If we're not authenticated, keep it extremely short */ + s->sessiontimeout = time(NULL) + ((s->authenticated || httptimeout < 5) ? httptimeout : 5); + + if (s->needdestroy) { + if (s->inuse == 1) { + ast_debug(1, "Need destroy, doing it now!\n"); + blastaway = 1; + } else { + ast_debug(1, "Need destroy, but can't do it yet!\n"); + if (s->waiting_thread != AST_PTHREADT_NULL) + pthread_kill(s->waiting_thread, SIGURG); + s->inuse--; + } + } else + s->inuse--; + ast_mutex_unlock(&s->__lock); + + if (blastaway) + destroy_session(s); +generic_callback_out: + if (*status != 200) + return ast_http_error(500, "Server Error", NULL, "Internal Server Error (out of memory)\n"); + return out; +} + +static struct ast_str *manager_http_callback(struct server_instance *ser, const char *uri, struct ast_variable *params, int *status, char **title, int *contentlength) +{ + return generic_http_callback(FORMAT_HTML, &ser->requestor, uri, params, status, title, contentlength); +} + +static struct ast_str *mxml_http_callback(struct server_instance *ser, const char *uri, struct ast_variable *params, int *status, char **title, int *contentlength) +{ + return generic_http_callback(FORMAT_XML, &ser->requestor, uri, params, status, title, contentlength); +} + +static struct ast_str *rawman_http_callback(struct server_instance *ser, const char *uri, struct ast_variable *params, int *status, char **title, int *contentlength) +{ + return generic_http_callback(FORMAT_RAW, &ser->requestor, uri, params, status, title, contentlength); +} + +struct ast_http_uri rawmanuri = { + .description = "Raw HTTP Manager Event Interface", + .uri = "rawman", + .has_subtree = 0, + .callback = rawman_http_callback, +}; + +struct ast_http_uri manageruri = { + .description = "HTML Manager Event Interface", + .uri = "manager", + .has_subtree = 0, + .callback = manager_http_callback, +}; + +struct ast_http_uri managerxmluri = { + .description = "XML Manager Event Interface", + .uri = "mxml", + .has_subtree = 0, + .callback = mxml_http_callback, +}; + +static int registered = 0; +static int webregged = 0; + +/*! \brief cleanup code called at each iteration of server_root, + * guaranteed to happen every 5 seconds at most + */ +static void purge_old_stuff(void *data) +{ + purge_sessions(1); + purge_events(); +} + +struct ast_tls_config ami_tls_cfg; +static struct server_args ami_desc = { + .accept_fd = -1, + .master = AST_PTHREADT_NULL, + .tls_cfg = NULL, + .poll_timeout = 5000, /* wake up every 5 seconds */ + .periodic_fn = purge_old_stuff, + .name = "AMI server", + .accept_fn = server_root, /* thread doing the accept() */ + .worker_fn = session_do, /* thread handling the session */ +}; + +static struct server_args amis_desc = { + .accept_fd = -1, + .master = AST_PTHREADT_NULL, + .tls_cfg = &ami_tls_cfg, + .poll_timeout = -1, /* the other does the periodic cleanup */ + .name = "AMI TLS server", + .accept_fn = server_root, /* thread doing the accept() */ + .worker_fn = session_do, /* thread handling the session */ +}; + +static int __init_manager(int reload) +{ + struct ast_config *ucfg = NULL, *cfg = NULL; + const char *val; + char *cat = NULL; + int newhttptimeout = 60; + int have_sslbindaddr = 0; + struct hostent *hp; + struct ast_hostent ahp; + struct ast_manager_user *user = NULL; + struct ast_variable *var; + struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 }; + + if (!registered) { + /* Register default actions */ + ast_manager_register2("Ping", 0, action_ping, "Keepalive command", mandescr_ping); + ast_manager_register2("Events", 0, action_events, "Control Event Flow", mandescr_events); + ast_manager_register2("Logoff", 0, action_logoff, "Logoff Manager", mandescr_logoff); + ast_manager_register2("Login", 0, action_login, "Login Manager", NULL); + ast_manager_register2("Challenge", 0, action_challenge, "Generate Challenge for MD5 Auth", NULL); + ast_manager_register2("Hangup", EVENT_FLAG_SYSTEM | EVENT_FLAG_CALL, action_hangup, "Hangup Channel", mandescr_hangup); + ast_manager_register("Status", EVENT_FLAG_SYSTEM | EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_status, "Lists channel status" ); + ast_manager_register2("Setvar", EVENT_FLAG_CALL, action_setvar, "Set Channel Variable", mandescr_setvar ); + ast_manager_register2("Getvar", EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_getvar, "Gets a Channel Variable", mandescr_getvar ); + ast_manager_register2("GetConfig", EVENT_FLAG_SYSTEM | EVENT_FLAG_CONFIG, action_getconfig, "Retrieve configuration", mandescr_getconfig); + ast_manager_register2("GetConfigJSON", EVENT_FLAG_SYSTEM | EVENT_FLAG_CONFIG, action_getconfigjson, "Retrieve configuration (JSON format)", mandescr_getconfigjson); + ast_manager_register2("UpdateConfig", EVENT_FLAG_CONFIG, action_updateconfig, "Update basic configuration", mandescr_updateconfig); + ast_manager_register2("Redirect", EVENT_FLAG_CALL, action_redirect, "Redirect (transfer) a call", mandescr_redirect ); + ast_manager_register2("Originate", EVENT_FLAG_CALL, action_originate, "Originate Call", mandescr_originate); + ast_manager_register2("Command", EVENT_FLAG_COMMAND, action_command, "Execute Asterisk CLI Command", mandescr_command ); + ast_manager_register2("ExtensionState", EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_extensionstate, "Check Extension Status", mandescr_extensionstate ); + ast_manager_register2("AbsoluteTimeout", EVENT_FLAG_SYSTEM | EVENT_FLAG_CALL, action_timeout, "Set Absolute Timeout", mandescr_timeout ); + ast_manager_register2("MailboxStatus", EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_mailboxstatus, "Check Mailbox", mandescr_mailboxstatus ); + ast_manager_register2("MailboxCount", EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_mailboxcount, "Check Mailbox Message Count", mandescr_mailboxcount ); + ast_manager_register2("ListCommands", 0, action_listcommands, "List available manager commands", mandescr_listcommands); + ast_manager_register2("SendText", EVENT_FLAG_CALL, action_sendtext, "Send text message to channel", mandescr_sendtext); + ast_manager_register2("UserEvent", EVENT_FLAG_USER, action_userevent, "Send an arbitrary event", mandescr_userevent); + ast_manager_register2("WaitEvent", 0, action_waitevent, "Wait for an event to occur", mandescr_waitevent); + ast_manager_register2("CoreSettings", EVENT_FLAG_SYSTEM | EVENT_FLAG_REPORTING, action_coresettings, "Show PBX core settings (version etc)", mandescr_coresettings); + ast_manager_register2("CoreStatus", EVENT_FLAG_SYSTEM | EVENT_FLAG_REPORTING, action_corestatus, "Show PBX core status variables", mandescr_corestatus); + ast_manager_register2("Reload", EVENT_FLAG_CONFIG | EVENT_FLAG_SYSTEM, action_reload, "Send a reload event", mandescr_reload); + ast_manager_register2("CoreShowChannels", EVENT_FLAG_SYSTEM | EVENT_FLAG_REPORTING, action_coreshowchannels, "List currently active channels", mandescr_coreshowchannels); + ast_manager_register2("ModuleLoad", EVENT_FLAG_SYSTEM, manager_moduleload, "Module management", mandescr_moduleload); + ast_manager_register2("ModuleCheck", EVENT_FLAG_SYSTEM, manager_modulecheck, "Check if module is loaded", mandescr_modulecheck); + + ast_cli_register_multiple(cli_manager, sizeof(cli_manager) / sizeof(struct ast_cli_entry)); + ast_extension_state_add(NULL, NULL, manager_state_cb, NULL); + registered = 1; + /* Append placeholder event so master_eventq never runs dry */ + append_event("Event: Placeholder\r\n\r\n", 0); + } + if ((cfg = ast_config_load("manager.conf", config_flags)) == CONFIG_STATUS_FILEUNCHANGED) + return 0; + + displayconnects = 1; + if (!cfg) { + ast_log(LOG_NOTICE, "Unable to open AMI configuration manager.conf. Asterisk management interface (AMI) disabled.\n"); + return 0; + } + + /* default values */ + memset(&ami_desc.sin, 0, sizeof(struct sockaddr_in)); + memset(&amis_desc.sin, 0, sizeof(amis_desc.sin)); + amis_desc.sin.sin_port = htons(5039); + ami_desc.sin.sin_port = htons(DEFAULT_MANAGER_PORT); + + ami_tls_cfg.enabled = 0; + if (ami_tls_cfg.certfile) + ast_free(ami_tls_cfg.certfile); + ami_tls_cfg.certfile = ast_strdup(AST_CERTFILE); + if (ami_tls_cfg.cipher) + ast_free(ami_tls_cfg.cipher); + ami_tls_cfg.cipher = ast_strdup(""); + + for (var = ast_variable_browse(cfg, "general"); var; var = var->next) { + val = var->value; + if (!strcasecmp(var->name, "sslenable")) + ami_tls_cfg.enabled = ast_true(val); + else if (!strcasecmp(var->name, "sslbindport")) + amis_desc.sin.sin_port = htons(atoi(val)); + else if (!strcasecmp(var->name, "sslbindaddr")) { + if ((hp = ast_gethostbyname(val, &ahp))) { + memcpy(&amis_desc.sin.sin_addr, hp->h_addr, sizeof(amis_desc.sin.sin_addr)); + have_sslbindaddr = 1; + } else { + ast_log(LOG_WARNING, "Invalid bind address '%s'\n", val); + } + } else if (!strcasecmp(var->name, "sslcert")) { + ast_free(ami_tls_cfg.certfile); + ami_tls_cfg.certfile = ast_strdup(val); + } else if (!strcasecmp(var->name, "sslcipher")) { + ast_free(ami_tls_cfg.cipher); + ami_tls_cfg.cipher = ast_strdup(val); + } else if (!strcasecmp(var->name, "enabled")) { + manager_enabled = ast_true(val); + } else if (!strcasecmp(var->name, "block-sockets")) { + block_sockets = ast_true(val); + } else if (!strcasecmp(var->name, "webenabled")) { + webmanager_enabled = ast_true(val); + } else if (!strcasecmp(var->name, "port")) { + ami_desc.sin.sin_port = htons(atoi(val)); + } else if (!strcasecmp(var->name, "bindaddr")) { + if (!inet_aton(val, &ami_desc.sin.sin_addr)) { + ast_log(LOG_WARNING, "Invalid address '%s' specified, using 0.0.0.0\n", val); + memset(&ami_desc.sin.sin_addr, 0, sizeof(ami_desc.sin.sin_addr)); + } + } else if (!strcasecmp(var->name, "allowmultiplelogin")) { + allowmultiplelogin = ast_true(val); + } else if (!strcasecmp(var->name, "displayconnects")) { + displayconnects = ast_true(val); + } else if (!strcasecmp(var->name, "timestampevents")) { + timestampevents = ast_true(val); + } else if (!strcasecmp(var->name, "debug")) { + manager_debug = ast_true(val); + } else if (!strcasecmp(var->name, "httptimeout")) { + newhttptimeout = atoi(val); + } else { + ast_log(LOG_NOTICE, "Invalid keyword <%s> = <%s> in manager.conf [general]\n", + var->name, val); + } + } + + if (manager_enabled) + ami_desc.sin.sin_family = AF_INET; + if (!have_sslbindaddr) + amis_desc.sin.sin_addr = ami_desc.sin.sin_addr; + if (ami_tls_cfg.enabled) + amis_desc.sin.sin_family = AF_INET; + + + AST_RWLIST_WRLOCK(&users); + + /* First, get users from users.conf */ + ucfg = ast_config_load("users.conf", config_flags); + if (ucfg && (ucfg != CONFIG_STATUS_FILEUNCHANGED)) { + const char *hasmanager; + int genhasmanager = ast_true(ast_variable_retrieve(ucfg, "general", "hasmanager")); + + while ((cat = ast_category_browse(ucfg, cat))) { + if (!strcasecmp(cat, "general")) + continue; + + hasmanager = ast_variable_retrieve(ucfg, cat, "hasmanager"); + if ((!hasmanager && genhasmanager) || ast_true(hasmanager)) { + const char *user_secret = ast_variable_retrieve(ucfg, cat, "secret"); + const char *user_read = ast_variable_retrieve(ucfg, cat, "read"); + const char *user_write = ast_variable_retrieve(ucfg, cat, "write"); + const char *user_displayconnects = ast_variable_retrieve(ucfg, cat, "displayconnects"); + const char *user_writetimeout = ast_variable_retrieve(ucfg, cat, "writetimeout"); + + /* Look for an existing entry, + * if none found - create one and add it to the list + */ + if (!(user = get_manager_by_name_locked(cat))) { + if (!(user = ast_calloc(1, sizeof(*user)))) + break; + + /* Copy name over */ + ast_copy_string(user->username, cat, sizeof(user->username)); + /* Insert into list */ + AST_LIST_INSERT_TAIL(&users, user, list); + user->ha = NULL; + user->readperm = -1; + user->writeperm = -1; + /* Default displayconnect from [general] */ + user->displayconnects = displayconnects; + user->writetimeout = 100; + } + + if (!user_secret) + user_secret = ast_variable_retrieve(ucfg, "general", "secret"); + if (!user_read) + user_read = ast_variable_retrieve(ucfg, "general", "read"); + if (!user_write) + user_write = ast_variable_retrieve(ucfg, "general", "write"); + if (!user_displayconnects) + user_displayconnects = ast_variable_retrieve(ucfg, "general", "displayconnects"); + if (!user_writetimeout) + user_writetimeout = ast_variable_retrieve(ucfg, "general", "writetimeout"); + + if (!ast_strlen_zero(user_secret)) { + if (user->secret) + ast_free(user->secret); + user->secret = ast_strdup(user_secret); + } + + if (user_read) + user->readperm = get_perm(user_read); + if (user_write) + user->writeperm = get_perm(user_write); + if (user_displayconnects) + user->displayconnects = ast_true(user_displayconnects); + + if (user_writetimeout) { + int val = atoi(user_writetimeout); + if (val < 100) + ast_log(LOG_WARNING, "Invalid writetimeout value '%s' at users.conf line %d\n", var->value, var->lineno); + else + user->writetimeout = val; + } + } + } + ast_config_destroy(ucfg); + } + + /* cat is NULL here in any case */ + + while ((cat = ast_category_browse(cfg, cat))) { + struct ast_ha *oldha; + + if (!strcasecmp(cat, "general")) + continue; + + /* Look for an existing entry, if none found - create one and add it to the list */ + if (!(user = get_manager_by_name_locked(cat))) { + if (!(user = ast_calloc(1, sizeof(*user)))) + break; + /* Copy name over */ + ast_copy_string(user->username, cat, sizeof(user->username)); + + user->ha = NULL; + user->readperm = 0; + user->writeperm = 0; + /* Default displayconnect from [general] */ + user->displayconnects = displayconnects; + user->writetimeout = 100; + + /* Insert into list */ + AST_RWLIST_INSERT_TAIL(&users, user, list); + } + + /* Make sure we keep this user and don't destroy it during cleanup */ + user->keep = 1; + oldha = user->ha; + user->ha = NULL; + + var = ast_variable_browse(cfg, cat); + for (; var; var = var->next) { + if (!strcasecmp(var->name, "secret")) { + if (user->secret) + ast_free(user->secret); + user->secret = ast_strdup(var->value); + } else if (!strcasecmp(var->name, "deny") || + !strcasecmp(var->name, "permit")) { + user->ha = ast_append_ha(var->name, var->value, user->ha, NULL); + } else if (!strcasecmp(var->name, "read") ) { + user->readperm = get_perm(var->value); + } else if (!strcasecmp(var->name, "write") ) { + user->writeperm = get_perm(var->value); + } else if (!strcasecmp(var->name, "displayconnects") ) { + user->displayconnects = ast_true(var->value); + } else if (!strcasecmp(var->name, "writetimeout")) { + int val = atoi(var->value); + if (val < 100) + ast_log(LOG_WARNING, "Invalid writetimeout value '%s' at line %d\n", var->value, var->lineno); + else + user->writetimeout = val; + } else + ast_debug(1, "%s is an unknown option.\n", var->name); + } + ast_free_ha(oldha); + } + ast_config_destroy(cfg); + + /* Perform cleanup - essentially prune out old users that no longer exist */ + AST_RWLIST_TRAVERSE_SAFE_BEGIN(&users, user, list) { + if (user->keep) { /* valid record. clear flag for the next round */ + user->keep = 0; + continue; + } + /* We do not need to keep this user so take them out of the list */ + AST_RWLIST_REMOVE_CURRENT(list); + /* Free their memory now */ + if (user->secret) + ast_free(user->secret); + ast_free_ha(user->ha); + ast_free(user); + } + AST_RWLIST_TRAVERSE_SAFE_END; + + AST_RWLIST_UNLOCK(&users); + + if (webmanager_enabled && manager_enabled) { + if (!webregged) { + ast_http_uri_link(&rawmanuri); + ast_http_uri_link(&manageruri); + ast_http_uri_link(&managerxmluri); + webregged = 1; + } + } else { + if (webregged) { + ast_http_uri_unlink(&rawmanuri); + ast_http_uri_unlink(&manageruri); + ast_http_uri_unlink(&managerxmluri); + webregged = 0; + } + } + + if (newhttptimeout > 0) + httptimeout = newhttptimeout; + + manager_event(EVENT_FLAG_SYSTEM, "Reload", "Module: Manager\r\nStatus: %s\r\nMessage: Manager reload Requested\r\n", manager_enabled ? "Enabled" : "Disabled"); + + server_start(&ami_desc); + if (ssl_setup(amis_desc.tls_cfg)) + server_start(&amis_desc); + return 0; +} + +int init_manager(void) +{ + return __init_manager(0); +} + +int reload_manager(void) +{ + return __init_manager(1); +} |