1 files changed, 0 insertions, 556 deletions

diff --git a/package/network/services/uhttpd/src/uhttpd-cgi.c b/package/network/services/uhttpd/src/uhttpd-cgi.c
deleted file mode 100644
index 69af90db4..000000000
--- a/package/network/services/uhttpd/src/uhttpd-cgi.c
+++ /dev/null
@@ -1,556 +0,0 @@
-/*
- * uhttpd - Tiny single-threaded httpd - CGI handler
- *
- *   Copyright (C) 2010-2012 Jo-Philipp Wich <xm@subsignal.org>
- *
- *  Licensed under the Apache License, Version 2.0 (the "License");
- *  you may not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS,
- *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- */
-
-#include "uhttpd.h"
-#include "uhttpd-utils.h"
-#include "uhttpd-cgi.h"
-
-
-static bool
-uh_cgi_header_parse(struct http_response *res, char *buf, int len, int *off)
-{
-	char *bufptr = NULL;
-	char *hdrname = NULL;
-	int hdrcount = 0;
-	int pos = 0;
-
-	if (((bufptr = strfind(buf, len, "\r\n\r\n", 4)) != NULL) ||
-	    ((bufptr = strfind(buf, len, "\n\n", 2)) != NULL))
-	{
-		*off = (int)(bufptr - buf) + ((bufptr[0] == '\r') ? 4 : 2);
-
-		memset(res, 0, sizeof(*res));
-
-		res->statuscode = 200;
-		res->statusmsg  = "OK";
-
-		bufptr = &buf[0];
-
-		for (pos = 0; pos < *off; pos++)
-		{
-			if (!hdrname && (buf[pos] == ':'))
-			{
-				buf[pos++] = 0;
-
-				if ((pos < len) && (buf[pos] == ' '))
-					pos++;
-
-				if (pos < len)
-				{
-					hdrname = bufptr;
-					bufptr = &buf[pos];
-				}
-			}
-
-			else if ((buf[pos] == '\r') || (buf[pos] == '\n'))
-			{
-				if (! hdrname)
-					break;
-
-				buf[pos++] = 0;
-
-				if ((pos < len) && (buf[pos] == '\n'))
-					pos++;
-
-				if (pos <= len)
-				{
-					if ((hdrcount+1) < array_size(res->headers))
-					{
-						if (!strcasecmp(hdrname, "Status"))
-						{
-							res->statuscode = atoi(bufptr);
-
-							if (res->statuscode < 100)
-								res->statuscode = 200;
-
-							if (((bufptr = strchr(bufptr, ' ')) != NULL) &&
-								(&bufptr[1] != 0))
-							{
-								res->statusmsg = &bufptr[1];
-							}
-
-							D("CGI: HTTP/1.x %03d %s\n",
-							  res->statuscode, res->statusmsg);
-						}
-						else
-						{
-							D("CGI: HTTP: %s: %s\n", hdrname, bufptr);
-
-							res->headers[hdrcount++] = hdrname;
-							res->headers[hdrcount++] = bufptr;
-						}
-
-						bufptr = &buf[pos];
-						hdrname = NULL;
-					}
-					else
-					{
-						return false;
-					}
-				}
-			}
-		}
-
-		return true;
-	}
-
-	return false;
-}
-
-static char * uh_cgi_header_lookup(struct http_response *res,
-								   const char *hdrname)
-{
-	int i;
-
-	foreach_header(i, res->headers)
-	{
-		if (!strcasecmp(res->headers[i], hdrname))
-			return res->headers[i+1];
-	}
-
-	return NULL;
-}
-
-static void uh_cgi_shutdown(struct uh_cgi_state *state)
-{
-	free(state);
-}
-
-static bool uh_cgi_socket_cb(struct client *cl)
-{
-	int i, len, blen, hdroff;
-	char buf[UH_LIMIT_MSGHEAD];
-
-	struct uh_cgi_state *state = (struct uh_cgi_state *)cl->priv;
-	struct http_response *res = &cl->response;
-	struct http_request *req = &cl->request;
-
-	/* there is unread post data waiting */
-	while (state->content_length > 0)
-	{
-		/* remaining data in http head buffer ... */
-		if (cl->httpbuf.len > 0)
-		{
-			len = min(state->content_length, cl->httpbuf.len);
-
-			D("CGI: Child(%d) feed %d HTTP buffer bytes\n", cl->proc.pid, len);
-
-			memcpy(buf, cl->httpbuf.ptr, len);
-
-			cl->httpbuf.len -= len;
-			cl->httpbuf.ptr +=len;
-		}
-
-		/* read it from socket ... */
-		else
-		{
-			len = uh_tcp_recv(cl, buf,
-							  min(state->content_length, sizeof(buf)));
-
-			if ((len < 0) && ((errno == EAGAIN) || (errno == EWOULDBLOCK)))
-				break;
-
-			D("CGI: Child(%d) feed %d/%d TCP socket bytes\n",
-			  cl->proc.pid, len, min(state->content_length, sizeof(buf)));
-		}
-
-		if (len)
-			state->content_length -= len;
-		else
-			state->content_length = 0;
-
-		/* ... write to CGI process */
-		len = uh_raw_send(cl->wpipe.fd, buf, len,
-						  cl->server->conf->script_timeout);
-
-		/* explicit EOF notification for the child */
-		if (state->content_length <= 0)
-			uh_ufd_remove(&cl->wpipe);
-	}
-
-	/* try to read data from child */
-	while ((len = uh_raw_recv(cl->rpipe.fd, buf, state->header_sent
-	                          ? sizeof(buf) : state->httpbuf.len, -1)) > 0)
-	{
-		/* we have not pushed out headers yet, parse input */
-		if (!state->header_sent)
-		{
-			/* try to parse header ... */
-			memcpy(state->httpbuf.ptr, buf, len);
-			state->httpbuf.len -= len;
-			state->httpbuf.ptr += len;
-
-			blen = state->httpbuf.ptr - state->httpbuf.buf;
-
-			if (uh_cgi_header_parse(res, state->httpbuf.buf, blen, &hdroff))
-			{
-				/* write status */
-				ensure_out(uh_http_sendf(cl, NULL,
-					"%s %03d %s\r\n"
-					"Connection: close\r\n",
-					http_versions[req->version],
-					res->statuscode, res->statusmsg));
-
-				/* add Content-Type if no Location or Content-Type */
-				if (!uh_cgi_header_lookup(res, "Location") &&
-					!uh_cgi_header_lookup(res, "Content-Type"))
-				{
-					ensure_out(uh_http_send(cl, NULL,
-						"Content-Type: text/plain\r\n", -1));
-				}
-
-				/* if request was HTTP 1.1 we'll respond chunked */
-				if ((req->version > UH_HTTP_VER_1_0) &&
-					!uh_cgi_header_lookup(res, "Transfer-Encoding"))
-				{
-					ensure_out(uh_http_send(cl, NULL,
-						"Transfer-Encoding: chunked\r\n", -1));
-				}
-
-				/* write headers from CGI program */
-				foreach_header(i, res->headers)
-				{
-					ensure_out(uh_http_sendf(cl, NULL, "%s: %s\r\n",
-						res->headers[i], res->headers[i+1]));
-				}
-
-				/* terminate header */
-				ensure_out(uh_http_send(cl, NULL, "\r\n", -1));
-
-				state->header_sent = true;
-
-				/* push out remaining head buffer */
-				if (hdroff < blen)
-				{
-					D("CGI: Child(%d) relaying %d rest bytes\n",
-					  cl->proc.pid, blen - hdroff);
-
-					ensure_out(uh_http_send(cl, req,
-					                        state->httpbuf.buf + hdroff,
-					                        blen - hdroff));
-				}
-			}
-
-			/* ... failed and head buffer exceeded */
-			else if (!state->httpbuf.len)
-			{
-				/* I would do this ...
-				 *
-				 *    uh_cgi_error_500(cl, req,
-				 *        "The CGI program generated an "
-				 *        "invalid response:\n\n");
-				 *
-				 * ... but in order to stay as compatible as possible,
-				 * treat whatever we got as text/plain response and
-				 * build the required headers here.
-				 */
-
-				ensure_out(uh_http_sendf(cl, NULL,
-										 "%s 200 OK\r\n"
-										 "Content-Type: text/plain\r\n"
-										 "%s\r\n",
-										 http_versions[req->version],
-										 (req->version > UH_HTTP_VER_1_0)
-										 ? "Transfer-Encoding: chunked\r\n" : ""
-				));
-
-				state->header_sent = true;
-
-				D("CGI: Child(%d) relaying %d invalid bytes\n",
-				  cl->proc.pid, len);
-
-				ensure_out(uh_http_send(cl, req, buf, len));
-			}
-		}
-		else
-		{
-			/* headers complete, pass through buffer to socket */
-			D("CGI: Child(%d) relaying %d normal bytes\n", cl->proc.pid, len);
-			ensure_out(uh_http_send(cl, req, buf, len));
-		}
-	}
-
-	/* got EOF or read error from child */
-	if ((len == 0) ||
-		((errno != EAGAIN) && (errno != EWOULDBLOCK) && (len == -1)))
-	{
-		D("CGI: Child(%d) presumed dead [%s]\n", cl->proc.pid, strerror(errno));
-
-		goto out;
-	}
-
-	return true;
-
-out:
-	if (!state->header_sent)
-	{
-		if (cl->timeout.pending)
-			uh_http_sendhf(cl, 502, "Bad Gateway",
-						   "The CGI process did not produce any response\n");
-		else
-			uh_http_sendhf(cl, 504, "Gateway Timeout",
-						   "The CGI process took too long to produce a "
-						   "response\n");
-	}
-	else
-	{
-		uh_http_send(cl, req, "", 0);
-	}
-
-	uh_cgi_shutdown(state);
-	return false;
-}
-
-bool uh_cgi_request(struct client *cl, struct path_info *pi,
-					struct interpreter *ip)
-{
-	int i;
-
-	int rfd[2] = { 0, 0 };
-	int wfd[2] = { 0, 0 };
-
-	pid_t child;
-
-	struct uh_cgi_state *state;
-	struct http_request *req = &cl->request;
-
-	/* allocate state */
-	if (!(state = malloc(sizeof(*state))))
-	{
-		uh_http_sendhf(cl, 500, "Internal Server Error", "Out of memory");
-		return false;
-	}
-
-	/* spawn pipes for me->child, child->me */
-	if ((pipe(rfd) < 0) || (pipe(wfd) < 0))
-	{
-		if (rfd[0] > 0) close(rfd[0]);
-		if (rfd[1] > 0) close(rfd[1]);
-		if (wfd[0] > 0) close(wfd[0]);
-		if (wfd[1] > 0) close(wfd[1]);
-
-		uh_http_sendhf(cl, 500, "Internal Server Error",
-						"Failed to create pipe: %s\n", strerror(errno));
-
-		return false;
-	}
-
-	/* fork off child process */
-	switch ((child = fork()))
-	{
-	/* oops */
-	case -1:
-		uh_http_sendhf(cl, 500, "Internal Server Error",
-						"Failed to fork child: %s\n", strerror(errno));
-
-		return false;
-
-	/* exec child */
-	case 0:
-#ifdef DEBUG
-		sleep(atoi(getenv("UHTTPD_SLEEP_ON_FORK") ?: "0"));
-#endif
-
-		/* do not leak parent epoll descriptor */
-		uloop_done();
-
-		/* close loose pipe ends */
-		close(rfd[0]);
-		close(wfd[1]);
-
-		/* patch stdout and stdin to pipes */
-		dup2(rfd[1], 1);
-		dup2(wfd[0], 0);
-
-		/* avoid leaking our pipe into child-child processes */
-		fd_cloexec(rfd[1]);
-		fd_cloexec(wfd[0]);
-
-		/* check for regular, world-executable file _or_ interpreter */
-		if (((pi->stat.st_mode & S_IFREG) &&
-			 (pi->stat.st_mode & S_IXOTH)) || (ip != NULL))
-		{
-			/* build environment */
-			clearenv();
-
-			/* common information */
-			setenv("GATEWAY_INTERFACE", "CGI/1.1", 1);
-			setenv("SERVER_SOFTWARE", "uHTTPd", 1);
-			setenv("PATH", "/sbin:/usr/sbin:/bin:/usr/bin", 1);
-
-#ifdef HAVE_TLS
-			/* https? */
-			if (cl->tls)
-				setenv("HTTPS", "on", 1);
-#endif
-
-			/* addresses */
-			setenv("SERVER_NAME", sa_straddr(&cl->servaddr), 1);
-			setenv("SERVER_ADDR", sa_straddr(&cl->servaddr), 1);
-			setenv("SERVER_PORT", sa_strport(&cl->servaddr), 1);
-			setenv("REMOTE_HOST", sa_straddr(&cl->peeraddr), 1);
-			setenv("REMOTE_ADDR", sa_straddr(&cl->peeraddr), 1);
-			setenv("REMOTE_PORT", sa_strport(&cl->peeraddr), 1);
-
-			/* path information */
-			setenv("SCRIPT_NAME", pi->name, 1);
-			setenv("SCRIPT_FILENAME", pi->phys, 1);
-			setenv("DOCUMENT_ROOT", pi->root, 1);
-			setenv("QUERY_STRING", pi->query ? pi->query : "", 1);
-
-			if (pi->info)
-				setenv("PATH_INFO", pi->info, 1);
-
-			/* REDIRECT_STATUS, php-cgi wants it */
-			switch (req->redirect_status)
-			{
-				case 404:
-					setenv("REDIRECT_STATUS", "404", 1);
-					break;
-
-				default:
-					setenv("REDIRECT_STATUS", "200", 1);
-					break;
-			}
-
-			/* http version */
-			setenv("SERVER_PROTOCOL", http_versions[req->version], 1);
-
-			/* request method */
-			setenv("REQUEST_METHOD", http_methods[req->method], 1);
-
-			/* request url */
-			setenv("REQUEST_URI", req->url, 1);
-
-			/* remote user */
-			if (req->realm)
-				setenv("REMOTE_USER", req->realm->user, 1);
-
-			/* request message headers */
-			foreach_header(i, req->headers)
-			{
-				if (!strcasecmp(req->headers[i], "Accept"))
-					setenv("HTTP_ACCEPT", req->headers[i+1], 1);
-
-				else if (!strcasecmp(req->headers[i], "Accept-Charset"))
-					setenv("HTTP_ACCEPT_CHARSET", req->headers[i+1], 1);
-
-				else if (!strcasecmp(req->headers[i], "Accept-Encoding"))
-					setenv("HTTP_ACCEPT_ENCODING", req->headers[i+1], 1);
-
-				else if (!strcasecmp(req->headers[i], "Accept-Language"))
-					setenv("HTTP_ACCEPT_LANGUAGE", req->headers[i+1], 1);
-
-				else if (!strcasecmp(req->headers[i], "Authorization"))
-					setenv("HTTP_AUTHORIZATION", req->headers[i+1], 1);
-
-				else if (!strcasecmp(req->headers[i], "Connection"))
-					setenv("HTTP_CONNECTION", req->headers[i+1], 1);
-
-				else if (!strcasecmp(req->headers[i], "Cookie"))
-					setenv("HTTP_COOKIE", req->headers[i+1], 1);
-
-				else if (!strcasecmp(req->headers[i], "Host"))
-					setenv("HTTP_HOST", req->headers[i+1], 1);
-
-				else if (!strcasecmp(req->headers[i], "Referer"))
-					setenv("HTTP_REFERER", req->headers[i+1], 1);
-
-				else if (!strcasecmp(req->headers[i], "User-Agent"))
-					setenv("HTTP_USER_AGENT", req->headers[i+1], 1);
-
-				else if (!strcasecmp(req->headers[i], "Content-Type"))
-					setenv("CONTENT_TYPE", req->headers[i+1], 1);
-
-				else if (!strcasecmp(req->headers[i], "Content-Length"))
-					setenv("CONTENT_LENGTH", req->headers[i+1], 1);
-			}
-
-
-			/* execute child code ... */
-			if (chdir(pi->root))
-				perror("chdir()");
-
-			if (ip != NULL)
-				execl(ip->path, ip->path, pi->phys, NULL);
-			else
-				execl(pi->phys, pi->phys, NULL);
-
-			/* in case it fails ... */
-			printf("Status: 500 Internal Server Error\r\n\r\n"
-				   "Unable to launch the requested CGI program:\n"
-				   "  %s: %s\n", ip ? ip->path : pi->phys, strerror(errno));
-		}
-
-		/* 403 */
-		else
-		{
-			printf("Status: 403 Forbidden\r\n\r\n"
-				   "Access to this resource is forbidden\n");
-		}
-
-		close(wfd[0]);
-		close(rfd[1]);
-		exit(0);
-
-		break;
-
-	/* parent; handle I/O relaying */
-	default:
-		memset(state, 0, sizeof(*state));
-
-		cl->rpipe.fd = rfd[0];
-		cl->wpipe.fd = wfd[1];
-		cl->proc.pid = child;
-
-		/* make pipe non-blocking */
-		fd_nonblock(cl->rpipe.fd);
-		fd_nonblock(cl->wpipe.fd);
-
-		/* close unneeded pipe ends */
-		close(rfd[1]);
-		close(wfd[0]);
-
-		D("CGI: Child(%d) created: rfd(%d) wfd(%d)\n", child, rfd[0], wfd[1]);
-
-		state->httpbuf.ptr = state->httpbuf.buf;
-		state->httpbuf.len = sizeof(state->httpbuf.buf);
-
-		state->content_length = cl->httpbuf.len;
-
-		/* find content length */
-		if (req->method == UH_HTTP_MSG_POST)
-		{
-			foreach_header(i, req->headers)
-			{
-				if (!strcasecmp(req->headers[i], "Content-Length"))
-				{
-					state->content_length = atoi(req->headers[i+1]);
-					break;
-				}
-			}
-		}
-
-		cl->cb = uh_cgi_socket_cb;
-		cl->priv = state;
-
-		break;
-	}
-
-	return true;
-}