http server for AMI access More...
#include "asterisk.h"
#include <time.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <sys/signal.h>
#include <fcntl.h>
#include "asterisk/paths.h"
#include "asterisk/network.h"
#include "asterisk/cli.h"
#include "asterisk/tcptls.h"
#include "asterisk/http.h"
#include "asterisk/utils.h"
#include "asterisk/strings.h"
#include "asterisk/config.h"
#include "asterisk/stringfields.h"
#include "asterisk/ast_version.h"
#include "asterisk/manager.h"
#include "asterisk/_private.h"
#include "asterisk/astobj2.h"
Go to the source code of this file.
Data Structures | |
struct | http_uri_redirect |
struct | uri_redirects |
struct | uris |
Defines | |
#define | DEFAULT_SESSION_LIMIT 100 |
#define | MAX_PREFIX 80 |
Functions | |
static int | __ast_http_load (int reload) |
static void | __fini_uri_redirects (void) |
static void | __fini_uris (void) |
static void | __init_uri_redirects (void) |
static void | __init_uris (void) |
static void | add_redirect (const char *value) |
Add a new URI redirect The entries in the redirect list are sorted by length, just like the list of URI handlers. | |
struct ast_str * | ast_http_error (int status, const char *title, const char *extra_header, const char *text) |
Return an ast_str malloc()'d string containing an HTTP error message. | |
int | ast_http_init (void) |
void | ast_http_prefix (char *buf, int len) |
Return the current prefix. | |
int | ast_http_reload (void) |
int | ast_http_uri_link (struct ast_http_uri *urih) |
Link the new uri into the list. | |
void | ast_http_uri_unlink (struct ast_http_uri *urih) |
Unregister a URI handler. | |
void | ast_http_uri_unlink_all_with_key (const char *key) |
Unregister all handlers with matching key. | |
static const char * | ftype2mtype (const char *ftype, char *wkspace, int wkspacelen) |
static char * | handle_show_http (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a) |
static struct ast_str * | handle_uri (struct ast_tcptls_session_instance *ser, char *uri, enum ast_http_method method, int *status, char **title, int *contentlength, struct ast_variable **cookies, struct ast_variable *headers, unsigned int *static_content) |
static void | http_decode (char *s) |
static void * | httpd_helper_thread (void *arg) |
static struct ast_str * | httpstatus_callback (struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *vars, struct ast_variable *headers, int *status, char **title, int *contentlength) |
static uint32_t | manid_from_vars (struct ast_variable *sid) |
static struct ast_variable * | parse_cookies (char *cookies) |
static struct ast_str * | static_callback (struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *vars, struct ast_variable *headers, int *status, char **title, int *contentlength) |
Variables | |
static struct ast_cli_entry | cli_http [] |
static int | enablestatic |
static struct ast_tcptls_session_args | http_desc |
static struct ast_tls_config | http_tls_cfg |
static struct ast_tcptls_session_args | https_desc |
struct { | |
const char * ext | |
const char * mtype | |
} | mimetypes [] |
static char | prefix [MAX_PREFIX] |
static int | session_count = 0 |
static int | session_limit = DEFAULT_SESSION_LIMIT |
static struct ast_http_uri | staticuri |
static struct ast_http_uri | statusuri |
static struct uri_redirects | uri_redirects |
static struct uris | uris |
http server for AMI access
This program implements a tiny http server and was inspired by micro-httpd by Jef Poskanzer
AMI over HTTP support - AMI over the http protocol
Definition in file http.c.
#define DEFAULT_SESSION_LIMIT 100 |
Definition at line 56 of file http.c.
Referenced by __ast_http_load().
#define MAX_PREFIX 80 |
Definition at line 55 of file http.c.
Referenced by __ast_http_load().
static int __ast_http_load | ( | int | reload | ) | [static] |
Definition at line 866 of file http.c.
References add_redirect(), AST_CERTFILE, ast_config_destroy(), ast_config_load2(), ast_copy_string(), ast_free, ast_gethostbyname(), ast_log(), ast_parse_arg(), AST_RWLIST_REMOVE_HEAD, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, ast_ssl_setup(), ast_strdup, ast_strlen_zero(), ast_tcptls_server_start(), ast_true(), ast_variable_browse(), ast_tls_config::certfile, ast_tls_config::cipher, CONFIG_FLAG_FILEUNCHANGED, CONFIG_STATUS_FILEINVALID, CONFIG_STATUS_FILEMISSING, CONFIG_STATUS_FILEUNCHANGED, DEFAULT_SESSION_LIMIT, ast_tls_config::enabled, enabled, http_uri_redirect::entry, hp, http_tls_cfg, ast_variable::lineno, ast_tcptls_session_args::local_address, LOG_WARNING, MAX_PREFIX, ast_variable::name, ast_variable::next, PARSE_DEFAULT, PARSE_IN_RANGE, PARSE_INT32, ast_tcptls_session_args::tls_cfg, and ast_variable::value.
Referenced by ast_http_init(), and ast_http_reload().
{ struct ast_config *cfg; struct ast_variable *v; int enabled=0; int newenablestatic=0; struct hostent *hp; struct ast_hostent ahp; char newprefix[MAX_PREFIX] = ""; int have_sslbindaddr = 0; struct http_uri_redirect *redirect; struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 }; cfg = ast_config_load2("http.conf", "http", config_flags); if (cfg == CONFIG_STATUS_FILEMISSING || cfg == CONFIG_STATUS_FILEUNCHANGED || cfg == CONFIG_STATUS_FILEINVALID) { return 0; } /* default values */ memset(&http_desc.local_address, 0, sizeof(http_desc.local_address)); http_desc.local_address.sin_port = htons(8088); memset(&https_desc.local_address, 0, sizeof(https_desc.local_address)); https_desc.local_address.sin_port = htons(8089); http_tls_cfg.enabled = 0; if (http_tls_cfg.certfile) { ast_free(http_tls_cfg.certfile); } http_tls_cfg.certfile = ast_strdup(AST_CERTFILE); if (http_tls_cfg.cipher) { ast_free(http_tls_cfg.cipher); } http_tls_cfg.cipher = ast_strdup(""); AST_RWLIST_WRLOCK(&uri_redirects); while ((redirect = AST_RWLIST_REMOVE_HEAD(&uri_redirects, entry))) { ast_free(redirect); } AST_RWLIST_UNLOCK(&uri_redirects); if (cfg) { v = ast_variable_browse(cfg, "general"); for (; v; v = v->next) { if (!strcasecmp(v->name, "enabled")) { enabled = ast_true(v->value); } else if (!strcasecmp(v->name, "sslenable")) { http_tls_cfg.enabled = ast_true(v->value); } else if (!strcasecmp(v->name, "sslbindport")) { https_desc.local_address.sin_port = htons(atoi(v->value)); } else if (!strcasecmp(v->name, "sslcert")) { ast_free(http_tls_cfg.certfile); http_tls_cfg.certfile = ast_strdup(v->value); } else if (!strcasecmp(v->name, "sslcipher")) { ast_free(http_tls_cfg.cipher); http_tls_cfg.cipher = ast_strdup(v->value); } else if (!strcasecmp(v->name, "enablestatic")) { newenablestatic = ast_true(v->value); } else if (!strcasecmp(v->name, "bindport")) { http_desc.local_address.sin_port = htons(atoi(v->value)); } else if (!strcasecmp(v->name, "sslbindaddr")) { if ((hp = ast_gethostbyname(v->value, &ahp))) { memcpy(&https_desc.local_address.sin_addr, hp->h_addr, sizeof(https_desc.local_address.sin_addr)); have_sslbindaddr = 1; } else { ast_log(LOG_WARNING, "Invalid bind address '%s'\n", v->value); } } else if (!strcasecmp(v->name, "bindaddr")) { if ((hp = ast_gethostbyname(v->value, &ahp))) { memcpy(&http_desc.local_address.sin_addr, hp->h_addr, sizeof(http_desc.local_address.sin_addr)); } else { ast_log(LOG_WARNING, "Invalid bind address '%s'\n", v->value); } } else if (!strcasecmp(v->name, "prefix")) { if (!ast_strlen_zero(v->value)) { newprefix[0] = '/'; ast_copy_string(newprefix + 1, v->value, sizeof(newprefix) - 1); } else { newprefix[0] = '\0'; } } else if (!strcasecmp(v->name, "redirect")) { add_redirect(v->value); } else if (!strcasecmp(v->name, "sessionlimit")) { if (ast_parse_arg(v->value, PARSE_INT32|PARSE_DEFAULT|PARSE_IN_RANGE, &session_limit, DEFAULT_SESSION_LIMIT, 1, INT_MAX)) { ast_log(LOG_WARNING, "Invalid %s '%s' at line %d of http.conf\n", v->name, v->value, v->lineno); } } else { ast_log(LOG_WARNING, "Ignoring unknown option '%s' in http.conf\n", v->name); } } ast_config_destroy(cfg); } if (!have_sslbindaddr) { https_desc.local_address.sin_addr = http_desc.local_address.sin_addr; } if (enabled) { http_desc.local_address.sin_family = https_desc.local_address.sin_family = AF_INET; } if (strcmp(prefix, newprefix)) { ast_copy_string(prefix, newprefix, sizeof(prefix)); } enablestatic = newenablestatic; ast_tcptls_server_start(&http_desc); if (ast_ssl_setup(https_desc.tls_cfg)) { ast_tcptls_server_start(&https_desc); } return 0; }
static void add_redirect | ( | const char * | value | ) | [static] |
Add a new URI redirect The entries in the redirect list are sorted by length, just like the list of URI handlers.
Definition at line 811 of file http.c.
References ast_calloc, ast_log(), AST_RWLIST_EMPTY, AST_RWLIST_FIRST, AST_RWLIST_INSERT_AFTER, AST_RWLIST_INSERT_HEAD, AST_RWLIST_INSERT_TAIL, AST_RWLIST_NEXT, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, ast_skip_blanks(), ast_strdupa, http_uri_redirect::dest, http_uri_redirect::entry, LOG_WARNING, strsep(), and http_uri_redirect::target.
Referenced by __ast_http_load().
{ char *target, *dest; struct http_uri_redirect *redirect, *cur; unsigned int target_len; unsigned int total_len; dest = ast_strdupa(value); dest = ast_skip_blanks(dest); target = strsep(&dest, " "); target = ast_skip_blanks(target); target = strsep(&target, " "); /* trim trailing whitespace */ if (!dest) { ast_log(LOG_WARNING, "Invalid redirect '%s'\n", value); return; } target_len = strlen(target) + 1; total_len = sizeof(*redirect) + target_len + strlen(dest) + 1; if (!(redirect = ast_calloc(1, total_len))) { return; } redirect->dest = redirect->target + target_len; strcpy(redirect->target, target); strcpy(redirect->dest, dest); AST_RWLIST_WRLOCK(&uri_redirects); target_len--; /* So we can compare directly with strlen() */ if (AST_RWLIST_EMPTY(&uri_redirects) || strlen(AST_RWLIST_FIRST(&uri_redirects)->target) <= target_len) { AST_RWLIST_INSERT_HEAD(&uri_redirects, redirect, entry); AST_RWLIST_UNLOCK(&uri_redirects); return; } AST_RWLIST_TRAVERSE(&uri_redirects, cur, entry) { if (AST_RWLIST_NEXT(cur, entry) && strlen(AST_RWLIST_NEXT(cur, entry)->target) <= target_len) { AST_RWLIST_INSERT_AFTER(&uri_redirects, cur, redirect, entry); AST_RWLIST_UNLOCK(&uri_redirects); return; } } AST_RWLIST_INSERT_TAIL(&uri_redirects, redirect, entry); AST_RWLIST_UNLOCK(&uri_redirects); }
struct ast_str* ast_http_error | ( | int | status, |
const char * | title, | ||
const char * | extra_header, | ||
const char * | text | ||
) | [read] |
Return an ast_str malloc()'d string containing an HTTP error message.
Definition at line 322 of file http.c.
References ast_str_create(), and ast_str_set().
Referenced by generic_http_callback(), handle_uri(), http_post_callback(), httpd_helper_thread(), phoneprov_callback(), and static_callback().
{ struct ast_str *out = ast_str_create(512); if (out == NULL) { return out; } ast_str_set(&out, 0, "Content-type: text/html\r\n" "%s" "\r\n" "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\r\n" "<html><head>\r\n" "<title>%d %s</title>\r\n" "</head><body>\r\n" "<h1>%s</h1>\r\n" "<p>%s</p>\r\n" "<hr />\r\n" "<address>Asterisk Server</address>\r\n" "</body></html>\r\n", (extra_header ? extra_header : ""), status, title, title, text); return out; }
int ast_http_init | ( | void | ) |
Provided by http.c
Definition at line 1047 of file http.c.
References __ast_http_load(), ARRAY_LEN, ast_cli_register_multiple(), ast_http_uri_link(), cli_http, staticuri, and statusuri.
Referenced by main().
{ ast_http_uri_link(&statusuri); ast_http_uri_link(&staticuri); ast_cli_register_multiple(cli_http, ARRAY_LEN(cli_http)); return __ast_http_load(0); }
void ast_http_prefix | ( | char * | buf, |
int | len | ||
) |
Return the current prefix.
buf[out] | destination buffer for previous |
len[in] | length of prefix to copy |
Definition at line 160 of file http.c.
References ast_copy_string().
{ if (buf) { ast_copy_string(buf, prefix, len); } }
int ast_http_reload | ( | void | ) |
Provided by http.c
Definition at line 1038 of file http.c.
References __ast_http_load().
{ return __ast_http_load(1); }
int ast_http_uri_link | ( | struct ast_http_uri * | urih | ) |
Link the new uri into the list.
Register a URI handler.
They are sorted by length of the string, not alphabetically. Duplicate entries are not replaced, but the insertion order (using <= and not just <) makes sure that more recent insertions hide older ones. On a lookup, we just scan the list and stop at the first matching entry.
Definition at line 357 of file http.c.
References ast_log(), AST_RWLIST_EMPTY, AST_RWLIST_FIRST, AST_RWLIST_INSERT_AFTER, AST_RWLIST_INSERT_HEAD, AST_RWLIST_INSERT_TAIL, AST_RWLIST_NEXT, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, ast_http_uri::description, http_uri_redirect::entry, len(), LOG_WARNING, ast_http_uri::supports_get, ast_http_uri::supports_post, and ast_http_uri::uri.
Referenced by __ast_http_post_load(), __init_manager(), ast_http_init(), and load_module().
{ struct ast_http_uri *uri; int len = strlen(urih->uri); if (!(urih->supports_get || urih->supports_post)) { ast_log(LOG_WARNING, "URI handler does not provide either GET or POST method: %s (%s)\n", urih->uri, urih->description); return -1; } AST_RWLIST_WRLOCK(&uris); if (AST_RWLIST_EMPTY(&uris) || strlen(AST_RWLIST_FIRST(&uris)->uri) <= len) { AST_RWLIST_INSERT_HEAD(&uris, urih, entry); AST_RWLIST_UNLOCK(&uris); return 0; } AST_RWLIST_TRAVERSE(&uris, uri, entry) { if (AST_RWLIST_NEXT(uri, entry) && strlen(AST_RWLIST_NEXT(uri, entry)->uri) <= len) { AST_RWLIST_INSERT_AFTER(&uris, uri, urih, entry); AST_RWLIST_UNLOCK(&uris); return 0; } } AST_RWLIST_INSERT_TAIL(&uris, urih, entry); AST_RWLIST_UNLOCK(&uris); return 0; }
void ast_http_uri_unlink | ( | struct ast_http_uri * | urih | ) |
Unregister a URI handler.
Definition at line 393 of file http.c.
References AST_RWLIST_REMOVE, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, and http_uri_redirect::entry.
Referenced by __init_manager(), and unload_module().
{ AST_RWLIST_WRLOCK(&uris); AST_RWLIST_REMOVE(&uris, urih, entry); AST_RWLIST_UNLOCK(&uris); }
void ast_http_uri_unlink_all_with_key | ( | const char * | key | ) |
Unregister all handlers with matching key.
Definition at line 400 of file http.c.
References ast_free, AST_RWLIST_REMOVE_CURRENT, AST_RWLIST_TRAVERSE_SAFE_BEGIN, AST_RWLIST_TRAVERSE_SAFE_END, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, ast_http_uri::data, ast_http_uri::dmallocd, http_uri_redirect::entry, ast_http_uri::key, and ast_http_uri::mallocd.
Referenced by __ast_http_post_load(), and unload_module().
{ struct ast_http_uri *urih; AST_RWLIST_WRLOCK(&uris); AST_RWLIST_TRAVERSE_SAFE_BEGIN(&uris, urih, entry) { if (!strcmp(urih->key, key)) { AST_RWLIST_REMOVE_CURRENT(entry); } if (urih->dmallocd) { ast_free(urih->data); } if (urih->mallocd) { ast_free(urih); } } AST_RWLIST_TRAVERSE_SAFE_END; AST_RWLIST_UNLOCK(&uris); }
static const char* ftype2mtype | ( | const char * | ftype, |
char * | wkspace, | ||
int | wkspacelen | ||
) | [static] |
static char* handle_show_http | ( | struct ast_cli_entry * | e, |
int | cmd, | ||
struct ast_cli_args * | a | ||
) | [static] |
Definition at line 980 of file http.c.
References ast_cli_args::argc, ast_cli(), ast_inet_ntoa(), AST_RWLIST_EMPTY, AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, ast_http_uri::description, http_uri_redirect::dest, ast_tls_config::enabled, http_uri_redirect::entry, ast_cli_args::fd, ast_http_uri::has_subtree, http_tls_cfg, ast_tcptls_session_args::old_address, http_uri_redirect::target, ast_http_uri::uri, and ast_cli_entry::usage.
{ struct ast_http_uri *urih; struct http_uri_redirect *redirect; switch (cmd) { case CLI_INIT: e->command = "http show status"; e->usage = "Usage: http show status\n" " Lists status of internal HTTP engine\n"; return NULL; case CLI_GENERATE: return NULL; } if (a->argc != 3) { return CLI_SHOWUSAGE; } ast_cli(a->fd, "HTTP Server Status:\n"); ast_cli(a->fd, "Prefix: %s\n", prefix); if (!http_desc.old_address.sin_family) { ast_cli(a->fd, "Server Disabled\n\n"); } else { ast_cli(a->fd, "Server Enabled and Bound to %s:%d\n\n", ast_inet_ntoa(http_desc.old_address.sin_addr), ntohs(http_desc.old_address.sin_port)); if (http_tls_cfg.enabled) { ast_cli(a->fd, "HTTPS Server Enabled and Bound to %s:%d\n\n", ast_inet_ntoa(https_desc.old_address.sin_addr), ntohs(https_desc.old_address.sin_port)); } } ast_cli(a->fd, "Enabled URI's:\n"); AST_RWLIST_RDLOCK(&uris); if (AST_RWLIST_EMPTY(&uris)) { ast_cli(a->fd, "None.\n"); } else { AST_RWLIST_TRAVERSE(&uris, urih, entry) { ast_cli(a->fd, "%s/%s%s => %s\n", prefix, urih->uri, (urih->has_subtree ? "/..." : ""), urih->description); } } AST_RWLIST_UNLOCK(&uris); ast_cli(a->fd, "\nEnabled Redirects:\n"); AST_RWLIST_RDLOCK(&uri_redirects); AST_RWLIST_TRAVERSE(&uri_redirects, redirect, entry) { ast_cli(a->fd, " %s => %s\n", redirect->target, redirect->dest); } if (AST_RWLIST_EMPTY(&uri_redirects)) { ast_cli(a->fd, " None.\n"); } AST_RWLIST_UNLOCK(&uri_redirects); return CLI_SUCCESS; }
static struct ast_str* handle_uri | ( | struct ast_tcptls_session_instance * | ser, |
char * | uri, | ||
enum ast_http_method | method, | ||
int * | status, | ||
char ** | title, | ||
int * | contentlength, | ||
struct ast_variable ** | cookies, | ||
struct ast_variable * | headers, | ||
unsigned int * | static_content | ||
) | [static, read] |
Definition at line 436 of file http.c.
References ast_debug, ast_http_error(), AST_HTTP_GET, AST_HTTP_POST, AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, ast_strdup, ast_variable_new(), ast_variables_destroy(), astman_is_authed(), buf, ast_http_uri::callback, cleanup(), http_uri_redirect::dest, http_uri_redirect::entry, ast_http_uri::has_subtree, http_decode(), manid_from_vars(), ast_variable::next, ast_http_uri::static_content, strsep(), ast_http_uri::supports_get, ast_http_uri::supports_post, http_uri_redirect::target, ast_http_uri::uri, val, and var.
Referenced by httpd_helper_thread().
{ char *c; struct ast_str *out = NULL; char *params = uri; struct ast_http_uri *urih = NULL; int l; struct ast_variable *vars = NULL, *v, *prev = NULL; struct http_uri_redirect *redirect; int saw_method = 0; ast_debug(2, "HTTP Request URI is %s \n", uri); /* preserve previous behavior of only support URI parameters on GET requests */ if (method == AST_HTTP_GET) { strsep(¶ms, "?"); /* Extract arguments from the request and store them in variables. * Note that a request can have multiple arguments with the same * name, and we store them all in the list of variables. * It is up to the application to handle multiple values. */ if (params) { char *var, *val; while ((val = strsep(¶ms, "&"))) { var = strsep(&val, "="); if (val) { http_decode(val); } else { val = ""; } http_decode(var); if ((v = ast_variable_new(var, val, ""))) { if (vars) { prev->next = v; } else { vars = v; } prev = v; } } } } /* * Append the cookies to the list of variables. * This saves a pass in the cookies list, but has the side effect * that a variable might mask a cookie with the same name if the * application stops at the first match. * Note that this is the same behaviour as $_REQUEST variables in PHP. */ if (prev) { prev->next = *cookies; } else { vars = *cookies; } *cookies = NULL; http_decode(uri); AST_RWLIST_RDLOCK(&uri_redirects); AST_RWLIST_TRAVERSE(&uri_redirects, redirect, entry) { if (!strcasecmp(uri, redirect->target)) { char buf[512]; snprintf(buf, sizeof(buf), "Location: %s\r\n", redirect->dest); out = ast_http_error((*status = 302), (*title = ast_strdup("Moved Temporarily")), buf, "Redirecting..."); break; } } AST_RWLIST_UNLOCK(&uri_redirects); if (redirect) { goto cleanup; } /* We want requests to start with the (optional) prefix and '/' */ l = strlen(prefix); if (!strncasecmp(uri, prefix, l) && uri[l] == '/') { uri += l + 1; /* scan registered uris to see if we match one. */ AST_RWLIST_RDLOCK(&uris); AST_RWLIST_TRAVERSE(&uris, urih, entry) { ast_debug(2, "match request [%s] with handler [%s] len %d\n", uri, urih->uri, l); if (!saw_method) { switch (method) { case AST_HTTP_GET: if (urih->supports_get) { saw_method = 1; } break; case AST_HTTP_POST: if (urih->supports_post) { saw_method = 1; } break; } } l = strlen(urih->uri); c = uri + l; /* candidate */ if (strncasecmp(urih->uri, uri, l) || /* no match */ (*c && *c != '/')) { /* substring */ continue; } if (*c == '/') { c++; } if (!*c || urih->has_subtree) { if (((method == AST_HTTP_GET) && urih->supports_get) || ((method == AST_HTTP_POST) && urih->supports_post)) { uri = c; break; } } } if (!urih) { AST_RWLIST_UNLOCK(&uris); } } if (method == AST_HTTP_POST && !astman_is_authed(manid_from_vars(vars))) { out = ast_http_error((*status = 403), (*title = ast_strdup("Access Denied")), NULL, "You do not have permission to access the requested URL."); } else if (urih) { *static_content = urih->static_content; out = urih->callback(ser, urih, uri, method, vars, headers, status, title, contentlength); AST_RWLIST_UNLOCK(&uris); } else if (saw_method) { out = ast_http_error((*status = 404), (*title = ast_strdup("Not Found")), NULL, "The requested URL was not found on this server."); } else { out = ast_http_error((*status = 501), (*title = ast_strdup("Not Implemented")), NULL, "Attempt to use unimplemented / unsupported method"); } cleanup: ast_variables_destroy(vars); return out; }
static void http_decode | ( | char * | s | ) | [static] |
Definition at line 424 of file http.c.
References ast_uri_decode().
Referenced by handle_uri().
{ char *t; for (t = s; *t; t++) { if (*t == '+') *t = ' '; } ast_uri_decode(s); }
static void * httpd_helper_thread | ( | void * | arg | ) | [static] |
Definition at line 672 of file http.c.
References ao2_ref, ast_atomic_fetchadd_int(), ast_free, ast_get_version(), ast_http_error(), AST_HTTP_GET, AST_HTTP_POST, ast_localtime(), ast_log(), ast_skip_blanks(), ast_skip_nonblanks(), ast_str_buffer(), ast_strftime(), ast_strlen_zero(), ast_trim_blanks(), ast_tvnow(), ast_variable_new(), ast_variables_destroy(), buf, errno, ast_tcptls_session_instance::f, fwrite, handle_uri(), LOG_WARNING, name, ast_variable::next, parse_cookies(), status, strsep(), and val.
{ char buf[4096]; char cookie[4096]; struct ast_tcptls_session_instance *ser = data; struct ast_variable *vars=NULL, *headers = NULL; char *uri, *title=NULL; int status = 200, contentlength = 0; struct ast_str *out = NULL; unsigned int static_content = 0; struct ast_variable *tail = headers; if (ast_atomic_fetchadd_int(&session_count, +1) >= session_limit) { goto done; } if (!fgets(buf, sizeof(buf), ser->f)) { goto done; } uri = ast_skip_nonblanks(buf); /* Skip method */ if (*uri) { *uri++ = '\0'; } uri = ast_skip_blanks(uri); /* Skip white space */ if (*uri) { /* terminate at the first blank */ char *c = ast_skip_nonblanks(uri); if (*c) { *c = '\0'; } } /* process "Cookie: " lines */ while (fgets(cookie, sizeof(cookie), ser->f)) { /* Trim trailing characters */ ast_trim_blanks(cookie); if (ast_strlen_zero(cookie)) { break; } if (!strncasecmp(cookie, "Cookie: ", 8)) { vars = parse_cookies(cookie); } else { char *name, *val; val = cookie; name = strsep(&val, ":"); if (ast_strlen_zero(name) || ast_strlen_zero(val)) { continue; } ast_trim_blanks(name); val = ast_skip_blanks(val); if (!headers) { headers = ast_variable_new(name, val, __FILE__); tail = headers; } else { tail->next = ast_variable_new(name, val, __FILE__); tail = tail->next; } } } if (!*uri) { out = ast_http_error(400, "Bad Request", NULL, "Invalid Request"); } else if (strcasecmp(buf, "post") && strcasecmp(buf, "get")) { out = ast_http_error(501, "Not Implemented", NULL, "Attempt to use unimplemented / unsupported method"); } else { /* try to serve it */ out = handle_uri(ser, uri, (!strcasecmp(buf, "get")) ? AST_HTTP_GET : AST_HTTP_POST, &status, &title, &contentlength, &vars, headers, &static_content); } /* If they aren't mopped up already, clean up the cookies */ if (vars) { ast_variables_destroy(vars); } /* Clean up all the header information pulled as well */ if (headers) { ast_variables_destroy(headers); } if (out) { struct timeval now = ast_tvnow(); char timebuf[256]; struct ast_tm tm; ast_strftime(timebuf, sizeof(timebuf), "%a, %d %b %Y %H:%M:%S %Z", ast_localtime(&now, &tm, "GMT")); fprintf(ser->f, "HTTP/1.1 %d %s\r\n" "Server: Asterisk/%s\r\n" "Date: %s\r\n" "Connection: close\r\n" "%s", status, title ? title : "OK", ast_get_version(), timebuf, static_content ? "" : "Cache-Control: no-cache, no-store\r\n"); /* We set the no-cache headers only for dynamic content. * If you want to make sure the static file you requested is not from cache, * append a random variable to your GET request. Ex: 'something.html?r=109987734' */ if (!contentlength) { /* opaque body ? just dump it hoping it is properly formatted */ fprintf(ser->f, "%s", ast_str_buffer(out)); } else { char *tmp = strstr(ast_str_buffer(out), "\r\n\r\n"); if (tmp) { fprintf(ser->f, "Content-length: %d\r\n", contentlength); /* first write the header, then the body */ if (fwrite(ast_str_buffer(out), 1, (tmp + 4 - ast_str_buffer(out)), ser->f) != tmp + 4 - ast_str_buffer(out)) { ast_log(LOG_WARNING, "fwrite() failed: %s\n", strerror(errno)); } if (fwrite(tmp + 4, 1, contentlength, ser->f) != contentlength ) { ast_log(LOG_WARNING, "fwrite() failed: %s\n", strerror(errno)); } } } ast_free(out); } if (title) { ast_free(title); } done: ast_atomic_fetchadd_int(&session_count, -1); fclose(ser->f); ao2_ref(ser, -1); ser = NULL; return NULL; }
static struct ast_str* httpstatus_callback | ( | struct ast_tcptls_session_instance * | ser, |
const struct ast_http_uri * | urih, | ||
const char * | uri, | ||
enum ast_http_method | method, | ||
struct ast_variable * | vars, | ||
struct ast_variable * | headers, | ||
int * | status, | ||
char ** | title, | ||
int * | contentlength | ||
) | [static, read] |
Definition at line 256 of file http.c.
References ast_inet_ntoa(), ast_str_append(), ast_str_create(), ast_tls_config::enabled, http_tls_cfg, ast_variable::name, ast_variable::next, ast_tcptls_session_args::old_address, and ast_variable::value.
{ struct ast_str *out = ast_str_create(512); struct ast_variable *v; if (out == NULL) { return out; } ast_str_append(&out, 0, "\r\n" "<title>Asterisk HTTP Status</title>\r\n" "<body bgcolor=\"#ffffff\">\r\n" "<table bgcolor=\"#f1f1f1\" align=\"center\"><tr><td bgcolor=\"#e0e0ff\" colspan=\"2\" width=\"500\">\r\n" "<h2> Asterisk™ HTTP Status</h2></td></tr>\r\n"); ast_str_append(&out, 0, "<tr><td><i>Prefix</i></td><td><b>%s</b></td></tr>\r\n", prefix); ast_str_append(&out, 0, "<tr><td><i>Bind Address</i></td><td><b>%s</b></td></tr>\r\n", ast_inet_ntoa(http_desc.old_address.sin_addr)); ast_str_append(&out, 0, "<tr><td><i>Bind Port</i></td><td><b>%d</b></td></tr>\r\n", ntohs(http_desc.old_address.sin_port)); if (http_tls_cfg.enabled) { ast_str_append(&out, 0, "<tr><td><i>SSL Bind Port</i></td><td><b>%d</b></td></tr>\r\n", ntohs(https_desc.old_address.sin_port)); } ast_str_append(&out, 0, "<tr><td colspan=\"2\"><hr></td></tr>\r\n"); for (v = vars; v; v = v->next) { if (strncasecmp(v->name, "cookie_", 7)) { ast_str_append(&out, 0, "<tr><td><i>Submitted Variable '%s'</i></td><td>%s</td></tr>\r\n", v->name, v->value); } } ast_str_append(&out, 0, "<tr><td colspan=\"2\"><hr></td></tr>\r\n"); for (v = vars; v; v = v->next) { if (!strncasecmp(v->name, "cookie_", 7)) { ast_str_append(&out, 0, "<tr><td><i>Cookie '%s'</i></td><td>%s</td></tr>\r\n", v->name, v->value); } } ast_str_append(&out, 0, "</table><center><font size=\"-1\"><i>Asterisk and Digium are registered trademarks of Digium, Inc.</i></font></center></body>\r\n"); return out; }
static uint32_t manid_from_vars | ( | struct ast_variable * | sid | ) | [static] |
Definition at line 148 of file http.c.
References ast_variable::name, ast_variable::next, and ast_variable::value.
Referenced by handle_uri(), and static_callback().
static struct ast_variable* parse_cookies | ( | char * | cookies | ) | [static, read] |
Definition at line 637 of file http.c.
References ast_debug, ast_strip(), ast_strip_quoted(), ast_strlen_zero(), ast_variable_new(), name, strsep(), val, and var.
Referenced by httpd_helper_thread().
{ char *cur; struct ast_variable *vars = NULL, *var; /* Skip Cookie: */ cookies += 8; while ((cur = strsep(&cookies, ";"))) { char *name, *val; name = val = cur; strsep(&val, "="); if (ast_strlen_zero(name) || ast_strlen_zero(val)) { continue; } name = ast_strip(name); val = ast_strip_quoted(val, "\"", "\""); if (ast_strlen_zero(name) || ast_strlen_zero(val)) { continue; } ast_debug(1, "HTTP Cookie, Name: '%s' Value: '%s'\n", name, val); var = ast_variable_new(name, val, __FILE__); var->next = vars; vars = var; } return vars; }
static struct ast_str* static_callback | ( | struct ast_tcptls_session_instance * | ser, |
const struct ast_http_uri * | urih, | ||
const char * | uri, | ||
enum ast_http_method | method, | ||
struct ast_variable * | vars, | ||
struct ast_variable * | headers, | ||
int * | status, | ||
char ** | title, | ||
int * | contentlength | ||
) | [static, read] |
Definition at line 167 of file http.c.
References ast_config_AST_DATA_DIR, ast_get_version(), ast_http_error(), ast_localtime(), ast_log(), ast_strdup, ast_strftime(), ast_strlen_zero(), ast_tvnow(), astman_is_authed(), buf, errno, ast_tcptls_session_instance::f, ftype2mtype(), fwrite, len(), LOG_WARNING, manid_from_vars(), and mtype.
{ char *path; char *ftype; const char *mtype; char wkspace[80]; struct stat st; int len; int fd; struct timeval now = ast_tvnow(); char buf[256]; struct ast_tm tm; /* Yuck. I'm not really sold on this, but if you don't deliver static content it makes your configuration substantially more challenging, but this seems like a rather irritating feature creep on Asterisk. */ if (!enablestatic || ast_strlen_zero(uri)) { goto out403; } /* Disallow any funny filenames at all */ if ((uri[0] < 33) || strchr("./|~@#$%^&*() \t", uri[0])) { goto out403; } if (strstr(uri, "/..")) { goto out403; } if ((ftype = strrchr(uri, '.'))) { ftype++; } mtype = ftype2mtype(ftype, wkspace, sizeof(wkspace)); /* Cap maximum length */ if ((len = strlen(uri) + strlen(ast_config_AST_DATA_DIR) + strlen("/static-http/") + 5) > 1024) { goto out403; } path = alloca(len); sprintf(path, "%s/static-http/%s", ast_config_AST_DATA_DIR, uri); if (stat(path, &st)) { goto out404; } if (S_ISDIR(st.st_mode)) { goto out404; } if ((fd = open(path, O_RDONLY)) < 0) { goto out403; } if (strstr(path, "/private/") && !astman_is_authed(manid_from_vars(vars))) { goto out403; } ast_strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S %Z", ast_localtime(&now, &tm, "GMT")); fprintf(ser->f, "HTTP/1.1 200 OK\r\n" "Server: Asterisk/%s\r\n" "Date: %s\r\n" "Connection: close\r\n" "Cache-Control: private\r\n" "Content-Length: %d\r\n" "Content-type: %s\r\n\r\n", ast_get_version(), buf, (int) st.st_size, mtype); while ((len = read(fd, buf, sizeof(buf))) > 0) { if (fwrite(buf, 1, len, ser->f) != len) { ast_log(LOG_WARNING, "fwrite() failed: %s\n", strerror(errno)); } } close(fd); return NULL; out404: return ast_http_error((*status = 404), (*title = ast_strdup("Not Found")), NULL, "The requested URL was not found on this server."); out403: return ast_http_error((*status = 403), (*title = ast_strdup("Access Denied")), NULL, "You do not have permission to access the requested URL."); }
struct ast_cli_entry cli_http[] [static] |
{ AST_CLI_DEFINE(handle_show_http, "Display HTTP server status"), }
Definition at line 1043 of file http.c.
Referenced by ast_http_init().
int enablestatic [static] |
const char* ext |
Definition at line 101 of file http.c.
Referenced by ast_ext_ctx(), ast_filehelper(), ast_rtp_read(), cli_console_dial(), common_exec(), console_transfer(), do_directory(), exts_compare(), ftype2mtype(), handle_cli_dialplan_save(), iax_park_thread(), misdn_call(), misdn_request(), mixmonitor_thread(), moh_scan_files(), oh323_request(), pbx_load_config(), pbx_load_users(), pvalGotoSetTarget(), record_exec(), register_exten(), register_peer_exten(), sip_park_thread(), sip_request_call(), and unregister_exten().
struct ast_tcptls_session_args http_desc [static] |
struct ast_tls_config http_tls_cfg [static] |
Definition at line 66 of file http.c.
Referenced by __ast_http_load(), handle_show_http(), and httpstatus_callback().
struct ast_tcptls_session_args https_desc [static] |
struct { ... } mimetypes[] [static] |
Referenced by ftype2mtype().
const char* mtype |
Definition at line 102 of file http.c.
Referenced by ftype2mtype(), and static_callback().
char prefix[MAX_PREFIX] [static] |
list of supported handlers
Definition at line 93 of file http.c.
Referenced by _while_exec(), ast_db_deltree(), ast_db_gettree(), ast_remotecontrol(), exec_clearhash(), handle_cli_database_show(), hashkeys_read(), read_config(), shared_read(), shared_write(), sip_show_settings(), and while_continue_exec().
int session_count = 0 [static] |
int session_limit = DEFAULT_SESSION_LIMIT [static] |
struct ast_http_uri staticuri [static] |
Definition at line 311 of file http.c.
Referenced by ast_http_init().
struct ast_http_uri statusuri [static] |
Definition at line 302 of file http.c.
Referenced by ast_http_init().
struct uri_redirects uri_redirects [static] |