[asterisk-commits] tilghman: trunk r190349 - in /trunk: include/asterisk/ main/ res/
SVN commits to the Asterisk project
asterisk-commits at lists.digium.com
Thu Apr 23 15:36:41 CDT 2009
Author: tilghman
Date: Thu Apr 23 15:36:35 2009
New Revision: 190349
URL: http://svn.digium.com/svn-view/asterisk?view=rev&rev=190349
Log:
Support HTTP digest authentication for the http manager interface.
(closes issue #10961)
Reported by: ys
Patches:
digest_auth_r148468_v5.diff uploaded by ys (license 281)
SVN branch http://svn.digium.com/svn/asterisk/team/group/manager_http_auth
Tested by: ys, twilson, tilghman
Review: http://reviewboard.digium.com/r/223/
Reviewed by: tilghman,russellb,mmichelson
Modified:
trunk/include/asterisk/http.h
trunk/include/asterisk/utils.h
trunk/main/astobj2.c
trunk/main/http.c
trunk/main/manager.c
trunk/main/utils.c
trunk/res/res_http_post.c
trunk/res/res_phoneprov.c
Modified: trunk/include/asterisk/http.h
URL: http://svn.digium.com/svn-view/asterisk/trunk/include/asterisk/http.h?view=diff&rev=190349&r1=190348&r2=190349
==============================================================================
--- trunk/include/asterisk/http.h (original)
+++ trunk/include/asterisk/http.h Thu Apr 23 15:36:35 2009
@@ -52,27 +52,40 @@
* be run earlier in the startup process so modules have it available.
*/
-
-/*! \brief HTTP Callbacks take the socket
-
- \note The method and the path as arguments and should
- return the content, allocated with malloc(). Status should be changed to reflect
- the status of the request if it isn't 200 and title may be set to a malloc()'d string
- to an appropriate title for non-200 responses. Content length may also be specified.
-\verbatim
- The return value may include additional headers at the front and MUST include a blank
- line with \r\n to provide separation between user headers and content (even if no
- content is specified)
-\endverbatim
-*/
-
+/*! \brief HTTP Request methods known by Asterisk */
enum ast_http_method {
+ AST_HTTP_UNKNOWN = -1, /*!< Unknown response */
AST_HTTP_GET = 0,
AST_HTTP_POST,
+ AST_HTTP_HEAD,
+ AST_HTTP_PUT, /*!< Not supported in Asterisk */
};
+
struct ast_http_uri;
-typedef struct ast_str *(*ast_http_callback)(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *params, struct ast_variable *headers, int *status, char **title, int *contentlength);
+/*! \brief HTTP Callbacks
+ *
+ * \note The callback function receives server instance, uri, http method,
+ * get method (if present in URI), and http headers as arguments and should
+ * use the ast_http_send() function for sending content allocated with ast_str
+ * and/or content from an opened file descriptor.
+ *
+ * Status and status text should be sent as arguments to the ast_http_send()
+ * function to reflect the status of the request (200 or 304, for example).
+ * Content length is calculated by ast_http_send() automatically.
+ *
+ * Static content may be indicated to the ast_http_send() function, to indicate
+ * that it may be cached.
+ *
+ * \verbatim
+ * The return value may include additional headers at the front and MUST
+ * include a blank line with \r\n to provide separation between user headers
+ * and content (even if no content is specified)
+ * \endverbatim
+ *
+ * For an error response, the ast_http_error() function may be used.
+*/
+typedef int (*ast_http_callback)(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *get_params, struct ast_variable *headers);
/*! \brief Definition of a URI handler */
struct ast_http_uri {
@@ -81,12 +94,6 @@
const char *uri;
ast_http_callback callback;
unsigned int has_subtree:1;
- /*! This handler serves static content */
- unsigned int static_content:1;
- /*! This handler accepts GET requests */
- unsigned int supports_get:1;
- /*! This handler accepts POST requests */
- unsigned int supports_post:1;
/*! Structure is malloc'd */
unsigned int mallocd:1;
/*! Data structure is malloc'd */
@@ -97,6 +104,9 @@
const char *key;
};
+/*! \brief Get cookie from Request headers */
+struct ast_variable *ast_http_get_cookies(struct ast_variable *headers);
+
/*! \brief Register a URI handler */
int ast_http_uri_link(struct ast_http_uri *urihandler);
@@ -106,8 +116,58 @@
/*! \brief Unregister all handlers with matching key */
void ast_http_uri_unlink_all_with_key(const char *key);
-/*! \brief Return an ast_str malloc()'d string containing an HTTP error message */
-struct ast_str *ast_http_error(int status, const char *title, const char *extra_header, const char *text);
+/*!\brief Return http method name string
+ * \since 1.6.3
+ */
+const char *ast_get_http_method(enum ast_http_method method) attribute_pure;
+
+/*!\brief Return mime type based on extension
+ * \param ftype filename extension
+ * \return String containing associated MIME type
+ * \since 1.6.3
+ */
+const char *ast_http_ftype2mtype(const char *ftype) attribute_pure;
+
+/*!\brief Return manager id, if exist, from request headers
+ * \param headers List of HTTP headers
+ * \return 32-bit associated manager session identifier
+ * \since 1.6.3
+ */
+uint32_t ast_http_manid_from_vars(struct ast_variable *headers) attribute_pure;
+
+/*! \brief Generic function for sending http/1.1 response.
+ * \param ser TCP/TLS session object
+ * \param method GET/POST/HEAD
+ * \param status_code HTTP response code (200/401/403/404/500)
+ * \param status_title English equivalent to the status_code parameter
+ * \param http_header An ast_str object containing all headers
+ * \param out An ast_str object containing the body of the response
+ * \param fd If out is NULL, a file descriptor where the body of the response is held (otherwise -1)
+ * \param static_content Zero if the content is dynamically generated and should not be cached; nonzero otherwise
+ *
+ * \note Function determines the HTTP response header from status_code,
+ * status_header, and http_header.
+ *
+ * Extra HTTP headers MUST be present only in the http_header argument. The
+ * argument "out" should contain only content of the response (no headers!).
+ *
+ * HTTP content can be constructed from the argument "out", if it is not NULL;
+ * otherwise, the function will read content from FD.
+ *
+ * This function calculates the content-length http header itself.
+ *
+ * Both the http_header and out arguments will be freed by this function;
+ * however, if FD is open, it will remain open.
+ *
+ * \since 1.6.3
+ */
+void ast_http_send(struct ast_tcptls_session_instance *ser, enum ast_http_method method, int status_code, const char *status_title, struct ast_str *http_header, struct ast_str *out, const int fd, unsigned int static_content);
+
+/*!\brief Send http "401 Unauthorized" response and close socket */
+void ast_http_auth(struct ast_tcptls_session_instance *ser, const char *realm, const unsigned long nonce, const unsigned long opaque, int stale, const char *text);
+
+/*!\brief Send HTTP error message and close socket */
+void ast_http_error(struct ast_tcptls_session_instance *ser, int status, const char *title, const char *text);
/*!
* \brief Return the current prefix
@@ -117,4 +177,15 @@
*/
void ast_http_prefix(char *buf, int len);
+
+/*!\brief Get post variables from client Request Entity-Body, if content type is application/x-www-form-urlencoded.
+ * \param ser TCP/TLS session object
+ * \param headers List of HTTP headers
+ * \return List of variables within the POST body
+ * \note Since returned list is malloc'd, list should be free'd by the calling function
+ * \since 1.6.3
+ */
+struct ast_variable *ast_http_get_post_vars(struct ast_tcptls_session_instance *ser, struct ast_variable *headers);
+
+
#endif /* _ASTERISK_SRV_H */
Modified: trunk/include/asterisk/utils.h
URL: http://svn.digium.com/svn-view/asterisk/trunk/include/asterisk/utils.h?view=diff&rev=190349&r1=190348&r2=190349
==============================================================================
--- trunk/include/asterisk/utils.h (original)
+++ trunk/include/asterisk/utils.h Thu Apr 23 15:36:35 2009
@@ -32,8 +32,9 @@
#include "asterisk/time.h"
#include "asterisk/logger.h"
#include "asterisk/localtime.h"
-
-/*!
+#include "asterisk/stringfields.h"
+
+/*!
\note \verbatim
Note:
It is very important to use only unsigned variables to hold
@@ -645,6 +646,33 @@
int ast_mkdir(const char *path, int mode);
#define ARRAY_LEN(a) (sizeof(a) / sizeof(0[a]))
+
+
+/* Definition for Digest authorization */
+struct ast_http_digest {
+ AST_DECLARE_STRING_FIELDS(
+ AST_STRING_FIELD(username);
+ AST_STRING_FIELD(nonce);
+ AST_STRING_FIELD(uri);
+ AST_STRING_FIELD(realm);
+ AST_STRING_FIELD(domain);
+ AST_STRING_FIELD(response);
+ AST_STRING_FIELD(cnonce);
+ AST_STRING_FIELD(opaque);
+ AST_STRING_FIELD(nc);
+ );
+ int qop; /* Flag set to 1, if we send/recv qop="quth" */
+};
+
+/*!
+ *\brief Parse digest authorization header.
+ *\return Returns -1 if we have no auth or something wrong with digest.
+ *\note This function may be used for Digest request and responce header.
+ * request arg is set to nonzero, if we parse Digest Request.
+ * pedantic arg can be set to nonzero if we need to do addition Digest check.
+ */
+int ast_parse_digest(const char *digest, struct ast_http_digest *d, int request, int pedantic);
+
#ifdef AST_DEVMODE
#define ast_assert(a) _ast_assert(a, # a, __FILE__, __LINE__, __PRETTY_FUNCTION__)
Modified: trunk/main/astobj2.c
URL: http://svn.digium.com/svn-view/asterisk/trunk/main/astobj2.c?view=diff&rev=190349&r1=190348&r2=190349
==============================================================================
--- trunk/main/astobj2.c (original)
+++ trunk/main/astobj2.c Thu Apr 23 15:36:35 2009
@@ -236,7 +236,7 @@
if (delta != 0) {
FILE *refo = fopen(REF_FILE,"a");
- fprintf(refo, "%p %s%d %s:%d:%s (%s) [@%d]\n", user_data, (delta<0? "":"+"), delta, file, line, funcname, tag, obj->priv_data.ref_counter);
+ fprintf(refo, "%p %s%d %s:%d:%s (%s) [@%d]\n", user_data, (delta<0? "":"+"), delta, file, line, funcname, tag, obj ? obj->priv_data.ref_counter : -1);
fclose(refo);
}
if (obj->priv_data.ref_counter + delta == 0 && obj->priv_data.destructor_fn != NULL) { /* this isn't protected with lock; just for o/p */
@@ -428,7 +428,7 @@
return NULL;
c->version = 1; /* 0 is a reserved value here */
- c->n_buckets = n_buckets;
+ c->n_buckets = hash_fn ? n_buckets : 1;
c->hash_fn = hash_fn ? hash_fn : hash_zero;
c->cmp_fn = cmp_fn;
@@ -444,10 +444,11 @@
{
/* XXX maybe consistency check on arguments ? */
/* compute the container size */
- size_t container_size = sizeof(struct ao2_container) + n_buckets * sizeof(struct bucket);
+ const unsigned int num_buckets = hash_fn ? n_buckets : 1;
+ size_t container_size = sizeof(struct ao2_container) + num_buckets * sizeof(struct bucket);
struct ao2_container *c = __ao2_alloc_debug(container_size, container_destruct_debug, tag, file, line, funcname);
- return internal_ao2_container_alloc(c, n_buckets, hash_fn, cmp_fn);
+ return internal_ao2_container_alloc(c, num_buckets, hash_fn, cmp_fn);
}
struct ao2_container *__ao2_container_alloc(const unsigned int n_buckets, ao2_hash_fn *hash_fn,
@@ -456,10 +457,11 @@
/* XXX maybe consistency check on arguments ? */
/* compute the container size */
- size_t container_size = sizeof(struct ao2_container) + n_buckets * sizeof(struct bucket);
+ const unsigned int num_buckets = hash_fn ? n_buckets : 1;
+ size_t container_size = sizeof(struct ao2_container) + num_buckets * sizeof(struct bucket);
struct ao2_container *c = __ao2_alloc(container_size, container_destruct);
- return internal_ao2_container_alloc(c, n_buckets, hash_fn, cmp_fn);
+ return internal_ao2_container_alloc(c, num_buckets, hash_fn, cmp_fn);
}
/*!
Modified: trunk/main/http.c
URL: http://svn.digium.com/svn-view/asterisk/trunk/main/http.c?view=diff&rev=190349&r1=190348&r2=190349
==============================================================================
--- trunk/main/http.c (original)
+++ trunk/main/http.c Thu Apr 23 15:36:35 2009
@@ -17,14 +17,14 @@
*/
/*!
- * \file
+ * \file
* \brief http server for AMI access
*
* \author Mark Spencer <markster at digium.com>
*
* This program implements a tiny http server
- * and was inspired by micro-httpd by Jef Poskanzer
- *
+ * and was inspired by micro-httpd by Jef Poskanzer
+ *
* \ref AstHTTP - AMI over the http protocol
*/
@@ -98,6 +98,7 @@
const char *mtype;
} mimetypes[] = {
{ "png", "image/png" },
+ { "xml", "text/xml" },
{ "jpg", "image/jpeg" },
{ "js", "application/x-javascript" },
{ "wav", "audio/x-wav" },
@@ -115,7 +116,23 @@
static AST_RWLIST_HEAD_STATIC(uri_redirects, http_uri_redirect);
-static const char *ftype2mtype(const char *ftype, char *wkspace, int wkspacelen)
+const struct ast_cfhttp_methods_text {
+ enum ast_http_method method;
+ const char text[];
+} ast_http_methods_text[] = {
+ { AST_HTTP_UNKNOWN, "UNKNOWN" },
+ { AST_HTTP_GET, "GET" },
+ { AST_HTTP_POST, "POST" },
+ { AST_HTTP_HEAD, "HEAD" },
+ { AST_HTTP_PUT, "PUT" },
+};
+
+const char *ast_get_http_method(enum ast_http_method method)
+{
+ return ast_http_methods_text[method].text;
+}
+
+const char *ast_http_ftype2mtype(const char *ftype)
{
int x;
@@ -126,21 +143,24 @@
}
}
}
-
- snprintf(wkspace, wkspacelen, "text/%s", S_OR(ftype, "plain"));
-
- return wkspace;
-}
-
-static uint32_t manid_from_vars(struct ast_variable *sid) {
- uint32_t mngid;
-
- while (sid && strcmp(sid->name, "mansession_id"))
- sid = sid->next;
-
- if (!sid || sscanf(sid->value, "%x", &mngid) != 1)
- return 0;
-
+ return NULL;
+}
+
+uint32_t ast_http_manid_from_vars(struct ast_variable *headers)
+{
+ uint32_t mngid = 0;
+ struct ast_variable *v, *cookies;
+
+ cookies = ast_http_get_cookies(headers);
+ for (v = cookies; v; v = v->next) {
+ if (!strcasecmp(v->name, "mansession_id")) {
+ sscanf(v->value, "%x", &mngid);
+ break;
+ }
+ }
+ if (cookies) {
+ ast_variables_destroy(cookies);
+ }
return mngid;
}
@@ -151,20 +171,31 @@
}
}
-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 int 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 *get_vars,
+ struct ast_variable *headers)
{
char *path;
- char *ftype;
+ const 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_str *http_header;
+ struct timeval tv;
struct ast_tm tm;
-
- /* Yuck. I'm not really sold on this, but if you don't deliver static content it makes your configuration
+ char timebuf[80], etag[23];
+ struct ast_variable *v;
+ int not_modified = 0;
+
+ if (method != AST_HTTP_GET && method != AST_HTTP_HEAD) {
+ ast_http_error(ser, 501, "Not Implemented", "Attempt to use unimplemented / unsupported method");
+ return -1;
+ }
+
+ /* 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;
@@ -178,18 +209,20 @@
if (strstr(uri, "/..")) {
goto out403;
}
-
+
if ((ftype = strrchr(uri, '.'))) {
ftype++;
}
- mtype = ftype2mtype(ftype, wkspace, sizeof(wkspace));
-
+ if (!(mtype = ast_http_ftype2mtype(ftype))) {
+ snprintf(wkspace, sizeof(wkspace), "text/%s", S_OR(ftype, "plain"));
+ }
+
/* 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)) {
@@ -198,142 +231,275 @@
if (S_ISDIR(st.st_mode)) {
goto out404;
- }
-
- if ((fd = open(path, O_RDONLY)) < 0) {
+ }
+
+ fd = open(path, O_RDONLY);
+ if (fd < 0) {
goto out403;
}
- if (strstr(path, "/private/") && !astman_is_authed(manid_from_vars(vars))) {
+ if (strstr(path, "/private/") && !astman_is_authed(ast_http_manid_from_vars(headers))) {
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));
- }
- }
-
+ /* make "Etag:" http header value */
+ snprintf(etag, sizeof(etag), "\"%ld\"", (long)st.st_mtime);
+
+ /* make "Last-Modified:" http header value */
+ tv.tv_sec = st.st_mtime;
+ tv.tv_usec = 0;
+ ast_strftime(timebuf, sizeof(timebuf), "%a, %d %b %Y %H:%M:%S GMT", ast_localtime(&tv, &tm, "GMT"));
+
+ /* check received "If-None-Match" request header and Etag value for file */
+ for (v = headers; v; v = v->next) {
+ if (!strcasecmp(v->name, "If-None-Match")) {
+ if (!strcasecmp(v->value, etag)) {
+ not_modified = 1;
+ }
+ break;
+ }
+ }
+
+ if ( (http_header = ast_str_create(255)) == NULL) {
+ return -1;
+ }
+
+ ast_str_set(&http_header, 0, "Content-type: %s\r\n"
+ "ETag: %s\r\n"
+ "Last-Modified: %s",
+ mtype,
+ etag,
+ timebuf);
+
+ /* ast_http_send() frees http_header, so we don't need to do it before returning */
+ if (not_modified) {
+ ast_http_send(ser, method, 304, "Not Modified", http_header, NULL, 0, 1);
+ } else {
+ ast_http_send(ser, method, 200, NULL, http_header, NULL, fd, 1); /* static content flag is set */
+ }
close(fd);
-
- return NULL;
+ return 0;
out404:
- return ast_http_error((*status = 404),
- (*title = ast_strdup("Not Found")),
- NULL, "The requested URL was not found on this server.");
+ ast_http_error(ser, 404, "Not Found", "The requested URL was not found on this server.");
+ return -1;
out403:
- return ast_http_error((*status = 403),
- (*title = ast_strdup("Access Denied")),
- NULL, "You do not have permission to access the requested URL.");
-}
-
-
-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)
-{
- struct ast_str *out = ast_str_create(512);
- struct ast_variable *v;
-
- if (out == NULL) {
- return out;
+ ast_http_error(ser, 403, "Access Denied", "You do not have permission to access the requested URL.");
+ return -1;
+}
+
+static int 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 *get_vars,
+ struct ast_variable *headers)
+{
+ struct ast_str *out;
+ struct ast_variable *v, *cookies = NULL;
+
+ if (method != AST_HTTP_GET && method != AST_HTTP_HEAD) {
+ ast_http_error(ser, 501, "Not Implemented", "Attempt to use unimplemented / unsupported method");
+ return -1;
+ }
+
+ if ( (out = ast_str_create(512)) == NULL) {
+ return -1;
}
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");
+ "<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);
- }
- }
-
+ for (v = get_vars; v; v = v->next) {
+ ast_str_append(&out, 0, "<tr><td><i>Submitted GET 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);
- }
- }
+ cookies = ast_http_get_cookies(headers);
+ for (v = cookies; v; v = v->next) {
+ ast_str_append(&out, 0, "<tr><td><i>Cookie '%s'</i></td><td>%s</td></tr>\r\n", v->name, v->value);
+ }
+ ast_variables_destroy(cookies);
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;
+ ast_http_send(ser, method, 200, NULL, NULL, out, 0, 0);
+ return 0;
}
static struct ast_http_uri statusuri = {
.callback = httpstatus_callback,
.description = "Asterisk HTTP General Status",
.uri = "httpstatus",
- .supports_get = 1,
+ .has_subtree = 0,
.data = NULL,
.key = __FILE__,
};
-
+
static struct ast_http_uri staticuri = {
.callback = static_callback,
.description = "Asterisk HTTP Static Delivery",
.uri = "static",
.has_subtree = 1,
- .static_content = 1,
- .supports_get = 1,
.data = NULL,
.key= __FILE__,
};
-
-struct ast_str *ast_http_error(int status, const char *title, const char *extra_header, const char *text)
-{
+
+
+/* send http/1.1 responce */
+/* free content variable and close socket*/
+void ast_http_send(struct ast_tcptls_session_instance *ser,
+ enum ast_http_method method, int status_code, const char *status_title,
+ struct ast_str *http_header, struct ast_str *out, const int fd,
+ unsigned int static_content)
+{
+ struct timeval now = ast_tvnow();
+ struct ast_tm tm;
+ char timebuf[80];
+ int content_length = 0;
+
+ if (!ser || 0 == ser->f) {
+ return;
+ }
+
+ ast_strftime(timebuf, sizeof(timebuf), "%a, %d %b %Y %H:%M:%S GMT", ast_localtime(&now, &tm, "GMT"));
+
+ /* calc conetnt length */
+ if (out) {
+ content_length += strlen(ast_str_buffer(out));
+ }
+
+ if (fd) {
+ content_length += lseek(fd, 0, SEEK_END);
+ lseek(fd, 0, SEEK_SET);
+ }
+
+ /* send http header */
+ fprintf(ser->f, "HTTP/1.1 %d %s\r\n"
+ "Server: Asterisk/%s\r\n"
+ "Date: %s\r\n"
+ "Connection: close\r\n"
+ "%s"
+ "Content-Length: %d\r\n"
+ "%s\r\n\r\n",
+ status_code, status_title ? status_title : "OK",
+ ast_get_version(),
+ timebuf,
+ static_content ? "" : "Cache-Control: no-cache, no-store\r\n",
+ content_length,
+ http_header ? ast_str_buffer(http_header) : ""
+ );
+
+ /* send content */
+ if (method != AST_HTTP_HEAD || status_code >= 400) {
+ if (out) {
+ fprintf(ser->f, "%s", ast_str_buffer(out));
+ }
+
+ if (fd) {
+ char buf[256];
+ int len;
+ while ((len = read(fd, buf, sizeof(buf))) > 0) {
+ if (fwrite(buf, len, 1, ser->f) != len) {
+ ast_log(LOG_WARNING, "fwrite() failed: %s\n", strerror(errno));
+ }
+ }
+ }
+ }
+
+ if (http_header) {
+ ast_free(http_header);
+ }
+ if (out) {
+ ast_free(out);
+ }
+
+ fclose(ser->f);
+ ser->f = 0;
+ return;
+}
+
+/* Send http "401 Unauthorized" responce and close socket*/
+void ast_http_auth(struct ast_tcptls_session_instance *ser, const char *realm,
+ const unsigned long nonce, const unsigned long opaque, int stale,
+ const char *text)
+{
+ struct ast_str *http_headers = ast_str_create(128);
struct ast_str *out = ast_str_create(512);
- if (out == NULL) {
- return out;
- }
+ if (!http_headers || !out) {
+ ast_free(http_headers);
+ ast_free(out);
+ return;
+ }
+
+ ast_str_set(&http_headers, 0,
+ "WWW-authenticate: Digest algorithm=MD5, realm=\"%s\", nonce=\"%08lx\", qop=\"auth\", opaque=\"%08lx\"%s\r\n"
+ "Content-type: text/html",
+ realm ? realm : "Asterisk",
+ nonce,
+ opaque,
+ stale ? ", stale=true" : "");
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;
-}
-
-/*! \brief
- * Link the new uri into the list.
+ "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\r\n"
+ "<html><head>\r\n"
+ "<title>401 Unauthorized</title>\r\n"
+ "</head><body>\r\n"
+ "<h1>401 Unauthorized</h1>\r\n"
+ "<p>%s</p>\r\n"
+ "<hr />\r\n"
+ "<address>Asterisk Server</address>\r\n"
+ "</body></html>\r\n",
+ text ? text : "");
+
+ ast_http_send(ser, AST_HTTP_UNKNOWN, 401, "Unauthorized", http_headers, out, 0, 0);
+ return;
+}
+
+/* send http error responce and close socket*/
+void ast_http_error(struct ast_tcptls_session_instance *ser, int status_code, const char *status_title, const char *text)
+{
+ struct ast_str *http_headers = ast_str_create(40);
+ struct ast_str *out = ast_str_create(256);
+
+ if (!http_headers || !out) {
+ ast_free(http_headers);
+ ast_free(out);
+ return;
+ }
+
+ ast_str_set(&http_headers, 0, "Content-type: text/html");
+
+ ast_str_set(&out, 0,
+ "<!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",
+ status_code, status_title, status_title, text);
+
+ ast_http_send(ser, AST_HTTP_UNKNOWN, status_code, status_title, http_headers, out, 0, 0);
+ return;
+}
+
+/*! \brief
+ * Link the new uri into the list.
*
* They are sorted by length of
* the string, not alphabetically. Duplicate entries are not replaced,
@@ -346,25 +512,19 @@
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) {
+ 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) {
+ strlen(AST_RWLIST_NEXT(uri, entry)->uri) <= len) {
AST_RWLIST_INSERT_AFTER(&uris, uri, urih, entry);
- AST_RWLIST_UNLOCK(&uris);
+ AST_RWLIST_UNLOCK(&uris);
return 0;
}
@@ -373,9 +533,9 @@
AST_RWLIST_INSERT_TAIL(&uris, urih, entry);
AST_RWLIST_UNLOCK(&uris);
-
+
return 0;
-}
+}
void ast_http_uri_unlink(struct ast_http_uri *urih)
{
@@ -411,91 +571,121 @@
static void http_decode(char *s)
{
char *t;
-
+
for (t = s; *t; t++) {
- if (*t == '+')
+ if (*t == '+') {
*t = ' ';
+ }
}
ast_uri_decode(s);
}
-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)
+/*
+ * get post variables from client Request Entity-Body, if content type is
+ * application/x-www-form-urlencoded
+ */
+struct ast_variable *ast_http_get_post_vars(
+ struct ast_tcptls_session_instance *ser, struct ast_variable *headers)
+{
+ int content_length = 0;
+ struct ast_variable *v, *post_vars=NULL, *prev = NULL;
+ char *buf, *var, *val;
+
+ for (v = headers; v; v = v->next) {
+ if (!strcasecmp(v->name, "Content-Type")) {
+ if (strcasecmp(v->value, "application/x-www-form-urlencoded")) {
+ return NULL;
+ }
+ break;
+ }
+ }
+
+ for (v = headers; v; v = v->next) {
+ if (!strcasecmp(v->name, "Content-Length")) {
+ content_length = atoi(v->value) + 1;
+ break;
+ }
+ }
+
+ if (!content_length) {
+ return NULL;
+ }
+
+ if (!(buf = alloca(content_length))) {
+ return NULL;
+ }
+ if (!fgets(buf, content_length, ser->f)) {
+ return NULL;
+ }
+
+ while ((val = strsep(&buf, "&"))) {
+ var = strsep(&val, "=");
+ if (val) {
+ http_decode(val);
+ } else {
+ val = "";
+ }
+ http_decode(var);
+ if ((v = ast_variable_new(var, val, ""))) {
+ if (post_vars) {
+ prev->next = v;
+ } else {
+ post_vars = v;
+ }
+ prev = v;
+ }
+ }
+ return post_vars;
+}
+
+static int handle_uri(struct ast_tcptls_session_instance *ser, char *uri,
+ enum ast_http_method method, struct ast_variable *headers)
{
char *c;
- struct ast_str *out = NULL;
+ int res = -1;
char *params = uri;
struct ast_http_uri *urih = NULL;
int l;
- struct ast_variable *vars = NULL, *v, *prev = NULL;
+ struct ast_variable *get_vars = NULL, *v, *prev = NULL;
struct http_uri_redirect *redirect;
- int saw_method = 0;
-
- /* 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);
+
+ strsep(¶ms, "?");
+ /* Extract arguments from the request and store them in variables. */
+ 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 (get_vars) {
+ prev->next = v;
} else {
- val = "";
+ get_vars = v;
}
- http_decode(var);
- if ((v = ast_variable_new(var, val, ""))) {
- if (vars) {
- prev->next = v;
- } else {
- vars = v;
- }
- prev = 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...");
+ struct ast_str *http_header = ast_str_create(128);
+ ast_str_set(&http_header, 0, "Location: %s\r\n", redirect->dest);
+ ast_http_send(ser, method, 302, "Moved Temporarily", http_header, NULL, 0, 0);
break;
}
}
AST_RWLIST_UNLOCK(&uri_redirects);
-
if (redirect) {
goto cleanup;
}
@@ -508,70 +698,31 @@
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 */
+ 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;
- }
+ 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.");
+ }
+ if (urih) {
+ res = urih->callback(ser, urih, uri, method, get_vars, headers);
} else {
- out = ast_http_error((*status = 501),
- (*title = ast_strdup("Not Implemented")), NULL,
- "Attempt to use unimplemented / unsupported method");
+ ast_http_error(ser, 404, "Not Found", "The requested URL was not found on this server.");
}
cleanup:
- ast_variables_destroy(vars);
-
- return out;
+ ast_variables_destroy(get_vars);
+ return res;
}
#ifdef DO_SSL
@@ -624,12 +775,9 @@
char *cur;
struct ast_variable *vars = NULL, *var;
- /* Skip Cookie: */
- cookies += 8;
-
while ((cur = strsep(&cookies, ";"))) {
char *name, *val;
-
+
name = val = cur;
strsep(&val, "=");
@@ -656,27 +804,55 @@
return vars;
}
+/* get cookie from Request headers */
+struct ast_variable *ast_http_get_cookies(struct ast_variable *headers)
+{
+ struct ast_variable *v, *cookies=NULL;
+
+ for (v = headers; v; v = v->next) {
+ if (!strncasecmp(v->name, "Cookie", 6)) {
+ if (cookies) {
+ ast_variables_destroy(cookies);
+ }
+
+ cookies = parse_cookies((char *)v->value);
+ }
+ }
+ return cookies;
+}
+
+
static void *httpd_helper_thread(void *data)
{
char buf[4096];
- char cookie[4096];
+ char header_line[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 *headers = NULL;
struct ast_variable *tail = headers;
+ char *uri, *method;
+ enum ast_http_method http_method = AST_HTTP_UNKNOWN;
if (!fgets(buf, sizeof(buf), ser->f)) {
goto done;
}
- uri = ast_skip_nonblanks(buf); /* Skip method */
+ /* Get method */
+ method = ast_skip_blanks(buf);
+ uri = ast_skip_nonblanks(method);
if (*uri) {
*uri++ = '\0';
}
+ if (!strcasecmp(method,"GET")) {
+ http_method = AST_HTTP_GET;
+ } else if (!strcasecmp(method,"POST")) {
+ http_method = AST_HTTP_POST;
+ } else if (!strcasecmp(method,"HEAD")) {
+ http_method = AST_HTTP_HEAD;
+ } else if (!strcasecmp(method,"PUT")) {
+ http_method = AST_HTTP_PUT;
+ }
+
uri = ast_skip_blanks(uri); /* Skip white space */
if (*uri) { /* terminate at the first blank */
@@ -687,101 +863,56 @@
}
}
- /* process "Cookie: " lines */
- while (fgets(cookie, sizeof(cookie), ser->f)) {
+ /* process "Request Headers" lines */
+ while (fgets(header_line, sizeof(header_line), ser->f)) {
+ char *name, *value;
+
/* Trim trailing characters */
- ast_trim_blanks(cookie);
- if (ast_strlen_zero(cookie)) {
+ ast_trim_blanks(header_line);
+ if (ast_strlen_zero(header_line)) {
break;
}
- if (!strncasecmp(cookie, "Cookie: ", 8)) {
- vars = parse_cookies(cookie);
+
+ value = header_line;
+ name = strsep(&value, ":");
+ if (!value) {
+ continue;
+ }
+
+ value = ast_skip_blanks(value);
+ if (ast_strlen_zero(value) || ast_strlen_zero(name)) {
+ continue;
+ }
+
+ ast_trim_blanks(name);
+
+ if (!headers) {
+ headers = ast_variable_new(name, value, __FILE__);
+ tail = headers;
} 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;
- }
+ tail->next = ast_variable_new(name, value, __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);
- }
+ ast_http_error(ser, 400, "Bad Request", "Invalid Request");
+ return NULL;
+ }
+
+ handle_uri(ser, uri, http_method, headers);
+
/* 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));
- }
- }
- }
[... 3657 lines stripped ...]
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