* httpd implementation for busybox
*
* Copyright (C) 2002,2003 Glenn Engel <glenne@engel.org>
- * Copyright (C) 2003 Vladimir Oleynik <dzo@simtreas.ru>
+ * Copyright (C) 2003-2006 Vladimir Oleynik <dzo@simtreas.ru>
*
* simplify patch stolen from libbb without using strdup
*
* foo=`httpd -d $foo` # decode "Hello%20World" as "Hello World"
* bar=`httpd -e "<Hello World>"` # encode as "<Hello World>"
* Note that url encoding for arguments is not the same as html encoding for
- * presenation. -d decodes a url-encoded argument while -e encodes in html
+ * presentation. -d decodes a url-encoded argument while -e encodes in html
* for page display.
*
* httpd.conf has the following format:
- *
+ *
* A:172.20. # Allow address from 172.20.0.0/16
* A:10.0.0.0/25 # Allow any address from 10.0.0.0-10.0.0.127
* A:10.0.0.0/255.255.255.128 # Allow any address that previous set
* /adm:admin:setup # Require user admin, pwd setup on urls starting with /adm/
* /adm:toor:PaSsWd # or user toor, pwd PaSsWd on urls starting with /adm/
* .au:audio/basic # additional mime type for audio.au files
- *
- * A/D may be as a/d or allow/deny - first char case unsensitive
+ * *.php:/path/php # running cgi.php scripts through an interpreter
+ *
+ * A/D may be as a/d or allow/deny - first char case insensitive
* Deny IP rules take precedence over allow rules.
- *
- *
+ *
+ *
* The Deny/Allow IP logic:
- *
+ *
* - Default is to allow all. No addresses are denied unless
- * denied with a D: rule.
+ * denied with a D: rule.
* - Order of Deny/Allow rules is significant
* - Deny rules take precedence over allow rules.
* - If a deny all rule (D:*) is used it acts as a catch-all for unmatched
- * addresses.
+ * addresses.
* - Specification of Allow all (A:*) is a no-op
- *
+ *
* Example:
* 1. Allow only specified addresses
* A:172.20 # Allow any address that begins with 172.20.
* A:10.10. # Allow any address that begins with 10.10.
* A:127.0.0.1 # Allow local loopback connections
* D:* # Deny from other IP connections
- *
+ *
* 2. Only deny specified addresses
* D:1.2.3. # deny from 1.2.3.0 - 1.2.3.255
* D:2.3.4. # deny from 2.3.4.0 - 2.3.4.255
* A:* # (optional line added for clarity)
- *
+ *
* If a sub directory contains a config file it is parsed and merged with
* any existing settings as if it was appended to the original configuration.
*
* subdir http request, any merge is discarded when the process exits. As a
* result, the subdir settings only have a lifetime of a single request.
*
- *
- * If -c is not set, an attempt will be made to open the default
+ *
+ * If -c is not set, an attempt will be made to open the default
* root configuration file. If -c is set and the file is not found, the
* server exits with an error.
- *
+ *
*/
#include "busybox.h"
-static const char httpdVersion[] = "busybox httpd/1.34 2-Oct-2003";
+static const char httpdVersion[] = "busybox httpd/1.35 6-Oct-2004";
static const char default_path_httpd_conf[] = "/etc";
static const char httpd_conf[] = "httpd.conf";
static const char home[] = "./";
#ifdef CONFIG_LFS
# define cont_l_fmt "%lld"
+# define cont_l_type (long long)
#else
# define cont_l_fmt "%ld"
+# define cont_l_type (long)
#endif
-// Note: bussybox xfuncs are not used because we want the server to keep running
+#define TIMEOUT 60
+
+// Note: busybox xfuncs are not used because we want the server to keep running
// if something bad happens due to a malformed user request.
// As a result, all memory allocation after daemonize
// is checked rigorously
#undef CONFIG_FEATURE_HTTPD_CGI
#undef CONFIG_FEATURE_HTTPD_SETUID
#undef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
+#undef ENABLE_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#undef ENABLE_FEATURE_HTTPD_BASIC_AUTH
+#undef ENABLE_FEATURE_HTTPD_AUTH_MD5
+#undef ENABLE_FEATURE_HTTPD_ENCODE_URL_STR
+#undef ENABLE_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
+#undef ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
+#undef ENABLE_FEATURE_HTTPD_CGI
+#undef ENABLE_FEATURE_HTTPD_SETUID
+#undef ENABLE_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
/* enable all features now */
#define CONFIG_FEATURE_HTTPD_BASIC_AUTH
#define CONFIG_FEATURE_HTTPD_AUTH_MD5
#define CONFIG_FEATURE_HTTPD_CGI
#define CONFIG_FEATURE_HTTPD_SETUID
#define CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
+#define ENABLE_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY 0
+#define ENABLE_FEATURE_HTTPD_BASIC_AUTH 1
+#define ENABLE_FEATURE_HTTPD_AUTH_MD5 1
+#define ENABLE_FEATURE_HTTPD_ENCODE_URL_STR 1
+#define ENABLE_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV 1
+#define ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES 1
+#define ENABLE_FEATURE_HTTPD_CGI 1
+#define ENABLE_FEATURE_HTTPD_SETUID 1
+#define ENABLE_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP 1
/* require from libbb.a for linking */
const char *bb_applet_name = "httpd";
#undef DEBUG
#endif
+#ifndef DEBUG
+# define DEBUG 0
+#endif
+
#define MAX_MEMORY_BUFF 8192 /* IO buffer */
typedef struct HT_ACCESS {
{
char buf[MAX_MEMORY_BUFF];
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- const char *realm;
- char *remoteuser;
-#endif
+ USE_FEATURE_HTTPD_BASIC_AUTH(const char *realm;)
+ USE_FEATURE_HTTPD_BASIC_AUTH(char *remoteuser;)
-#ifdef CONFIG_FEATURE_HTTPD_CGI
- char *referer;
-#endif
+ const char *query;
+
+ USE_FEATURE_HTTPD_CGI(char *referer;)
const char *configFile;
unsigned int rmt_ip;
-#if defined(CONFIG_FEATURE_HTTPD_CGI) || defined(DEBUG)
+#if ENABLE_FEATURE_HTTPD_CGI || DEBUG
char rmt_ip_str[16]; /* for set env REMOTE_ADDR */
#endif
unsigned port; /* server initial port and for
set env REMOTE_PORT */
+ union HTTPD_FOUND {
+ const char *found_mime_type;
+ const char *found_moved_temporarily;
+ } httpd_found;
- const char *found_mime_type;
off_t ContentLength; /* -1 - unknown */
time_t last_mod;
#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
int accepted_socket;
-#define a_c_r config->accepted_socket
-#define a_c_w config->accepted_socket
- int debugHttpd; /* if seted, don`t stay daemon */
+# define a_c_r config->accepted_socket
+# define a_c_w config->accepted_socket
#else
-#define a_c_r 0
-#define a_c_w 1
+# define a_c_r 0
+# define a_c_w 1
+#endif
+ volatile int alarm_signaled;
+
+#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ Htaccess *script_i; /* config script interpreters */
#endif
} HttpdConfig;
static const char request_GET[] = "GET"; /* size algorithic optimize */
static const char* const suffixTable [] = {
-/* Warning: shorted equalent suffix in one line must be first */
+/* Warning: shorted equivalent suffix in one line must be first */
".htm.html", "text/html",
".jpg.jpeg", "image/jpeg",
".gif", "image/gif",
typedef enum
{
HTTP_OK = 200,
+ HTTP_MOVED_TEMPORARILY = 302,
+ HTTP_BAD_REQUEST = 400, /* malformed syntax */
HTTP_UNAUTHORIZED = 401, /* authentication needed, respond with auth hdr */
HTTP_NOT_FOUND = 404,
- HTTP_NOT_IMPLEMENTED = 501, /* used for unrecognized requests */
- HTTP_BAD_REQUEST = 400, /* malformed syntax */
HTTP_FORBIDDEN = 403,
+ HTTP_REQUEST_TIMEOUT = 408,
+ HTTP_NOT_IMPLEMENTED = 501, /* used for unrecognized requests */
HTTP_INTERNAL_SERVER_ERROR = 500,
#if 0 /* future use */
HTTP_CONTINUE = 100,
HTTP_NO_CONTENT = 204,
HTTP_MULTIPLE_CHOICES = 300,
HTTP_MOVED_PERMANENTLY = 301,
- HTTP_MOVED_TEMPORARILY = 302,
HTTP_NOT_MODIFIED = 304,
HTTP_PAYMENT_REQUIRED = 402,
HTTP_BAD_GATEWAY = 502,
} HttpEnumString;
static const HttpEnumString httpResponseNames[] = {
- { HTTP_OK, "OK" },
+ { HTTP_OK, "OK", NULL },
+ { HTTP_MOVED_TEMPORARILY, "Found", "Directories must end with a slash." },
+ { HTTP_REQUEST_TIMEOUT, "Request Timeout",
+ "No request appeared within a reasonable time period." },
{ HTTP_NOT_IMPLEMENTED, "Not Implemented",
"The requested method is not recognized by this server." },
#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
{ HTTP_NO_CONTENT, "No Content" },
{ HTTP_MULTIPLE_CHOICES, "Multiple Choices" },
{ HTTP_MOVED_PERMANENTLY, "Moved Permanently" },
- { HTTP_MOVED_TEMPORARILY, "Moved Temporarily" },
{ HTTP_NOT_MODIFIED, "Not Modified" },
{ HTTP_BAD_GATEWAY, "Bad Gateway", "" },
{ HTTP_SERVICE_UNAVAILABLE, "Service Unavailable", "" },
> $Function: parse_conf()
*
* $Description: parse configuration file into in-memory linked list.
- *
+ *
* The first non-white character is examined to determine if the config line
* is one of the following:
* .ext:mime/type # new mime type not compiled into httpd
* checks.
* (int) flag . . . . . . the source of the parse request.
*
- * $Return: (None)
+ * $Return: (None)
*
****************************************************************************/
static void parse_conf(const char *path, int flag)
config->flg_deny_all = 0;
-#if defined(CONFIG_FEATURE_HTTPD_BASIC_AUTH) || defined(CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES)
+#if defined(CONFIG_FEATURE_HTTPD_BASIC_AUTH) || defined(CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES) || defined(CONFIG_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR)
/* retain previous auth and mime config only for subdir parse */
if(flag != SUBDIR_PARSE) {
#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
#endif
#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
free_config_lines(&config->mime_a);
+#endif
+#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ free_config_lines(&config->script_i);
#endif
}
#endif
#endif
#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
&& *p0 != '.'
+#endif
+#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ && *p0 != '*'
#endif
)
continue;
}
#endif
-#if defined(CONFIG_FEATURE_HTTPD_BASIC_AUTH) || defined(CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES)
+#if defined(CONFIG_FEATURE_HTTPD_BASIC_AUTH) || defined(CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES) || defined(CONFIG_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR)
/* storing current config line */
cur = calloc(1, sizeof(Htaccess) + strlen(p0));
if(cur) {
continue;
}
#endif
+#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ if(*cf == '*' && cf[1] == '.') {
+ /* config script interpreter line move top for overwrite previous */
+ cur->next = config->script_i;
+ config->script_i = cur;
+ continue;
+ }
+#endif
#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
free(p0);
if(prev == NULL) {
} else {
/* sort path, if current lenght eq or bigger then move up */
Htaccess *prev_hti = config->auth;
- int l = strlen(cf);
+ size_t l = strlen(cf);
Htaccess *hti;
for(hti = prev_hti; hti; hti = hti->next) {
/* take the simple route and encode everything */
/* could possibly scan once to get length. */
int len = strlen(string);
- char *out = malloc(len*5 +1);
+ char *out = malloc(len * 6 + 1);
char *p=out;
char ch;
while ((ch = *string++)) {
// very simple check for what to encode
if (isalnum(ch)) *p++ = ch;
- else p += sprintf(p, "&#%d", (unsigned char) ch);
+ else p += sprintf(p, "&#%d;", (unsigned char) ch);
}
*p=0;
return out;
if (*ptr == '+' && flag_plus_to_space) { *string++ = ' '; ptr++; }
else if (*ptr != '%') *string++ = *ptr++;
else {
- unsigned int value;
- sscanf(ptr+1, "%2X", &value);
- *string++ = value;
- ptr += 3;
+ unsigned int value1, value2;
+
+ ptr++;
+ if(sscanf(ptr, "%1X", &value1) != 1 ||
+ sscanf(ptr+1, "%1X", &value2) != 1) {
+ if(!flag_plus_to_space)
+ return NULL;
+ *string++ = '%';
+ } else {
+ value1 = value1 * 16 + value2;
+ if(value1 == '/' || value1 == 0)
+ return orig+1;
+ *string++ = value1;
+ ptr += 2;
+ }
}
}
*string = '\0';
*
> $Function: addEnv()
*
- * $Description: Add an enviornment variable setting to the global list.
+ * $Description: Add an environment variable setting to the global list.
* A NAME=VALUE string is allocated, filled, and added to the list of
* environment settings passed to the cgi execution script.
*
static void decodeBase64(char *Data)
{
- const unsigned char *in = Data;
+ const unsigned char *in = (const unsigned char *)Data;
// The decoded size will be at most 3/4 the size of the encoded
unsigned long ch = 0;
int i = 0;
char *buf = config->buf;
const char *responseString = "";
const char *infoString = 0;
+ const char *mime_type;
unsigned int i;
time_t timer = time(0);
char timeStr[80];
break;
}
}
- if (responseNum != HTTP_OK) {
- config->found_mime_type = "text/html"; // error message is HTML
- }
+ /* error message is HTML */
+ mime_type = responseNum == HTTP_OK ?
+ config->httpd_found.found_mime_type : "text/html";
/* emit the current date */
strftime(timeStr, sizeof(timeStr), RFC1123FMT, gmtime(&timer));
len = sprintf(buf,
- "HTTP/1.0 %d %s\nContent-type: %s\r\n"
+ "HTTP/1.0 %d %s\r\nContent-type: %s\r\n"
"Date: %s\r\nConnection: close\r\n",
- responseNum, responseString, config->found_mime_type, timeStr);
+ responseNum, responseString, mime_type, timeStr);
#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
if (responseNum == HTTP_UNAUTHORIZED) {
config->realm);
}
#endif
+ if(responseNum == HTTP_MOVED_TEMPORARILY) {
+ len += sprintf(buf+len, "Location: %s/%s%s\r\n",
+ config->httpd_found.found_moved_temporarily,
+ (config->query ? "?" : ""),
+ (config->query ? config->query : ""));
+ }
+
if (config->ContentLength != -1) { /* file */
strftime(timeStr, sizeof(timeStr), RFC1123FMT, gmtime(&config->last_mod));
len += sprintf(buf+len, "Last-Modified: %s\r\n%s " cont_l_fmt "\r\n",
- timeStr, Content_length, config->ContentLength);
+ timeStr, Content_length, cont_l_type config->ContentLength);
}
strcat(buf, "\r\n");
len += 2;
responseNum, responseString,
responseNum, responseString, infoString);
}
-#ifdef DEBUG
- if (config->debugHttpd) fprintf(stderr, "Headers: '%s'", buf);
+#if DEBUG
+ fprintf(stderr, "Headers: '%s'", buf);
#endif
return bb_full_write(a_c_w, buf, len);
}
*
* $Parameters:
* (const char *) url . . . . . . The requested URL (with leading /).
- * (const char *urlArgs). . . . . Any URL arguments.
* (int bodyLen) . . . . . . . . Length of the post body.
* (const char *cookie) . . . . . For set HTTP_COOKIE.
* (const char *content_type) . . For set CONTENT_TYPE.
*
****************************************************************************/
static int sendCgi(const char *url,
- const char *request, const char *urlArgs,
- int bodyLen, const char *cookie,
+ const char *request, int bodyLen, const char *cookie,
const char *content_type)
{
int fromCgi[2]; /* pipe for reading data from CGI */
dup2(inFd, 0); // replace stdin with the pipe
dup2(outFd, 1); // replace stdout with the pipe
-
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- if (!config->debugHttpd)
-#endif
+ if(!DEBUG)
dup2(outFd, 2); // replace stderr with the pipe
close(toCgi[0]);
addEnv("PATH", "INFO", script); /* set /PATH_INFO or NULL */
addEnv("PATH", "", getenv("PATH"));
addEnv("REQUEST", "METHOD", request);
- if(urlArgs) {
- char *uri = alloca(strlen(purl) + 2 + strlen(urlArgs));
+ if(config->query) {
+ char *uri = alloca(strlen(purl) + 2 + strlen(config->query));
if(uri)
- sprintf(uri, "%s?%s", purl, urlArgs);
+ sprintf(uri, "%s?%s", purl, config->query);
addEnv("REQUEST", "URI", uri);
} else {
addEnv("REQUEST", "URI", purl);
}
if(script != NULL)
*script = '\0'; /* reduce /PATH_INFO */
+ /* SCRIPT_FILENAME required by PHP in CGI mode */
+ if(realpath(purl + 1, realpath_buff))
+ addEnv("SCRIPT", "FILENAME", realpath_buff);
+ else
+ *realpath_buff = 0;
/* set SCRIPT_NAME as full path: /cgi-bin/dirs/script.cgi */
addEnv("SCRIPT_NAME", "", purl);
- addEnv("QUERY_STRING", "", urlArgs);
+ addEnv("QUERY_STRING", "", config->query);
addEnv("SERVER", "SOFTWARE", httpdVersion);
addEnv("SERVER", "PROTOCOL", "HTTP/1.0");
addEnv("GATEWAY_INTERFACE", "", "CGI/1.1");
addEnv("HTTP", "COOKIE", cookie);
if(content_type)
addEnv("CONTENT", "TYPE", content_type);
+#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
if(config->remoteuser) {
addEnv("REMOTE", "USER", config->remoteuser);
addEnv("AUTH_TYPE", "", "Basic");
}
+#endif
if(config->referer)
addEnv("HTTP", "REFERER", config->referer);
/* set execve argp[0] without path */
argp[0] = strrchr( purl, '/' ) + 1;
/* but script argp[0] must have absolute path and chdiring to this */
- if(realpath(purl + 1, realpath_buff) != NULL) {
+ if(*realpath_buff) {
script = strrchr(realpath_buff, '/');
if(script) {
*script = '\0';
if(chdir(realpath_buff) == 0) {
- *script = '/';
// now run the program. If it fails,
// use _exit() so no destructors
// get called and make a mess.
- execv(realpath_buff, argp);
+#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ char *interpr = NULL;
+ char *suffix = strrchr(purl, '.');
+
+ if(suffix) {
+ Htaccess * cur;
+ for (cur = config->script_i; cur; cur = cur->next)
+ if(strcmp(cur->before_colon + 1, suffix) == 0) {
+ interpr = cur->after_colon;
+ break;
+ }
+ }
+#endif
+ *script = '/';
+#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ if (interpr)
+ execv(interpr, argp);
+ else
+#endif
+ execv(realpath_buff, argp);
}
}
}
if (nfound <= 0) {
if (waitpid(pid, &status, WNOHANG) > 0) {
close(inFd);
-#ifdef DEBUG
- if (config->debugHttpd) {
- if (WIFEXITED(status))
+#if DEBUG
+ if (WIFEXITED(status))
bb_error_msg("piped has exited with status=%d", WEXITSTATUS(status));
- if (WIFSIGNALED(status))
+ if (WIFSIGNALED(status))
bb_error_msg("piped has exited with signal=%d", WTERMSIG(status));
- }
#endif
break;
}
post_readed_idx += count;
if(post_readed_size == 0)
post_readed_idx = 0;
+ } else {
+ post_readed_size = post_readed_idx = bodyLen = 0; /* broken pipe to CGI */
}
} else if(bodyLen > 0 && post_readed_size == 0 && FD_ISSET(a_c_r, &readSet)) {
- count = bodyLen > sizeof(wbuf) ? sizeof(wbuf) : bodyLen;
- count = bb_full_read(a_c_r, wbuf, count);
+ count = bodyLen > (int)sizeof(wbuf) ? (int)sizeof(wbuf) : bodyLen;
+ count = safe_read(a_c_r, wbuf, count);
if(count > 0) {
post_readed_size += count;
bodyLen -= count;
- } else {
+ } else {
bodyLen = 0; /* closed */
}
- } else if(FD_ISSET(inFd, &readSet)) {
+ }
+ if(FD_ISSET(inFd, &readSet)) {
int s = a_c_w;
char *rbuf = config->buf;
+#ifndef PIPE_BUF
+# define PIPESIZE 4096 /* amount of buffering in a pipe */
+#else
+# define PIPESIZE PIPE_BUF
+#endif
+#if PIPESIZE >= MAX_MEMORY_BUFF
+# error "PIPESIZE >= MAX_MEMORY_BUFF"
+#endif
+
// There is something to read
- count = bb_full_read(inFd, rbuf, MAX_MEMORY_BUFF-1);
+ count = safe_read(inFd, rbuf, PIPESIZE);
if (count == 0)
break; /* closed */
if (count > 0) {
if (firstLine) {
rbuf[count] = 0;
/* check to see if the user script added headers */
- if(strncmp(rbuf, "HTTP/1.0 200 OK\n", 4) != 0) {
- bb_full_write(s, "HTTP/1.0 200 OK\n", 16);
+ if(strncmp(rbuf, "HTTP/1.0 200 OK\r\n", 4) != 0) {
+ bb_full_write(s, "HTTP/1.0 200 OK\r\n", 17);
}
if (strstr(rbuf, "ontent-") == 0) {
- bb_full_write(s, "Content-type: text/plain\n\n", 26);
+ bb_full_write(s, "Content-type: text/plain\r\n\r\n", 28);
}
firstLine = 0;
}
- bb_full_write(s, rbuf, count);
-#ifdef DEBUG
- if (config->debugHttpd)
- fprintf(stderr, "cgi read %d bytes\n", count);
+ if (bb_full_write(s, rbuf, count) != count)
+ break;
+
+#if DEBUG
+ fprintf(stderr, "cgi read %d bytes\n", count);
#endif
}
}
break;
}
/* also, if not found, set default as "application/octet-stream"; */
- config->found_mime_type = *(table+1);
+ config->httpd_found.found_mime_type = *(table+1);
#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
if (suffix) {
Htaccess * cur;
for (cur = config->mime_a; cur; cur = cur->next) {
if(strcmp(cur->before_colon, suffix) == 0) {
- config->found_mime_type = cur->after_colon;
+ config->httpd_found.found_mime_type = cur->after_colon;
break;
}
}
}
#endif /* CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES */
-#ifdef DEBUG
- if (config->debugHttpd)
- fprintf(stderr, "Sending file '%s' Content-type: %s\n",
- url, config->found_mime_type);
+#if DEBUG
+ fprintf(stderr, "Sending file '%s' Content-type: %s\n",
+ url, config->httpd_found.found_mime_type);
#endif
f = open(url, O_RDONLY);
sendHeaders(HTTP_OK);
while ((count = bb_full_read(f, buf, MAX_MEMORY_BUFF)) > 0) {
- bb_full_write(a_c_w, buf, count);
+ if (bb_full_write(a_c_w, buf, count) != count)
+ break;
}
close(f);
} else {
-#ifdef DEBUG
- if (config->debugHttpd)
- bb_perror_msg("Unable to open '%s'", url);
+#if DEBUG
+ bb_perror_msg("Unable to open '%s'", url);
#endif
sendHeaders(HTTP_NOT_FOUND);
}
/* This could stand some work */
for (cur = config->ip_a_d; cur; cur = cur->next) {
-#ifdef DEBUG
- if (config->debugHttpd) {
- fprintf(stderr, "checkPermIP: '%s' ? ", config->rmt_ip_str);
- fprintf(stderr, "'%u.%u.%u.%u/%u.%u.%u.%u'\n",
+#if DEBUG
+ fprintf(stderr, "checkPermIP: '%s' ? ", config->rmt_ip_str);
+ fprintf(stderr, "'%u.%u.%u.%u/%u.%u.%u.%u'\n",
(unsigned char)(cur->ip >> 24),
(unsigned char)(cur->ip >> 16),
(unsigned char)(cur->ip >> 8),
(unsigned char)(cur->mask >> 16),
(unsigned char)(cur->mask >> 8),
cur->mask & 0xff);
- }
#endif
if((config->rmt_ip & cur->mask) == cur->ip)
return cur->allow_deny == 'A'; /* Allow/Deny */
}
- /* if uncofigured, return 1 - access from all */
+ /* if unconfigured, return 1 - access from all */
return !config->flg_deny_all;
}
if(prev != NULL && strcmp(prev, p0) != 0)
continue; /* find next identical */
p = cur->after_colon;
-#ifdef DEBUG
- if (config->debugHttpd)
- fprintf(stderr,"checkPerm: '%s' ? '%s'\n", p0, request);
+#if DEBUG
+ fprintf(stderr,"checkPerm: '%s' ? '%s'\n", p0, request);
#endif
{
- int l = strlen(p0);
+ size_t l = strlen(p0);
if(strncmp(p0, path, l) == 0 &&
(l == 1 || path[l] == '/' || path[l] == 0)) {
#endif /* CONFIG_FEATURE_HTTPD_BASIC_AUTH */
+/****************************************************************************
+ *
+ > $Function: handle_sigalrm()
+ *
+ * $Description: Handle timeouts
+ *
+ ****************************************************************************/
+
+static void
+handle_sigalrm( int sig )
+{
+ sendHeaders(HTTP_REQUEST_TIMEOUT);
+ config->alarm_signaled = sig;
+}
/****************************************************************************
*
char *url;
char *purl;
int blank = -1;
- char *urlArgs;
+ char *test;
+ struct stat sb;
+ int ip_allowed;
#ifdef CONFIG_FEATURE_HTTPD_CGI
const char *prequest = request_GET;
long length=0;
char *cookie = 0;
char *content_type = 0;
#endif
- char *test;
- struct stat sb;
- int ip_allowed;
+#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+ fd_set s_fd;
+ struct timeval tv;
+ int retval;
+#endif
+ struct sigaction sa;
#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
int credentials = -1; /* if not requred this is Ok */
#endif
+ sa.sa_handler = handle_sigalrm;
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = 0; /* no SA_RESTART */
+ sigaction(SIGALRM, &sa, NULL);
+
do {
int count;
+ (void) alarm( TIMEOUT );
if (getLine() <= 0)
break; /* closed */
*purl = ' ';
count = sscanf(purl, " %[^ ] HTTP/%d.%*d", buf, &blank);
- decodeString(buf, 0);
if (count < 1 || buf[0] != '/') {
/* Garbled request/URL */
goto BAD_REQUEST;
}
strcpy(url, buf);
/* extract url args if present */
- urlArgs = strchr(url, '?');
- if (urlArgs)
- *urlArgs++ = 0;
+ test = strchr(url, '?');
+ if (test) {
+ *test++ = 0;
+ config->query = test;
+ }
+ test = decodeString(url, 0);
+ if(test == NULL)
+ goto BAD_REQUEST;
+ if(test == (buf+1)) {
+ sendHeaders(HTTP_NOT_FOUND);
+ break;
+ }
/* algorithm stolen from libbb bb_simplify_path(),
but don`t strdup and reducing trailing slash and protect out root */
purl = test = url;
/* If URL is directory, adding '/' */
if(test[-1] != '/') {
if ( is_directory(url + 1, 1, &sb) ) {
- *test++ = '/';
- *test = 0;
- purl = test; /* end ptr */
+ config->httpd_found.found_moved_temporarily = url;
}
}
-#ifdef DEBUG
- if (config->debugHttpd)
- fprintf(stderr, "url='%s', args=%s\n", url, urlArgs);
+#if DEBUG
+ fprintf(stderr, "url='%s', args=%s\n", url, config->query);
#endif
test = url;
}
*test = '/';
}
+ if(blank >= 0) {
+ // read until blank line for HTTP version specified, else parse immediate
+ while(1) {
+ alarm(TIMEOUT);
+ count = getLine();
+ if(count <= 0)
+ break;
- // read until blank line for HTTP version specified, else parse immediate
- while (blank >= 0 && (count = getLine()) > 0) {
-
-#ifdef DEBUG
- if (config->debugHttpd) fprintf(stderr, "Header: '%s'\n", buf);
+#if DEBUG
+ fprintf(stderr, "Header: '%s'\n", buf);
#endif
#ifdef CONFIG_FEATURE_HTTPD_CGI
- /* try and do our best to parse more lines */
- if ((strncasecmp(buf, Content_length, 15) == 0)) {
- if(prequest != request_GET)
- length = strtol(buf + 15, 0, 0); // extra read only for POST
- } else if ((strncasecmp(buf, "Cookie:", 7) == 0)) {
- for(test = buf + 7; isspace(*test); test++)
- ;
- cookie = strdup(test);
- } else if ((strncasecmp(buf, "Content-Type:", 13) == 0)) {
- for(test = buf + 13; isspace(*test); test++)
- ;
- content_type = strdup(test);
- } else if ((strncasecmp(buf, "Referer:", 8) == 0)) {
- for(test = buf + 8; isspace(*test); test++)
- ;
- config->referer = strdup(test);
- }
+ /* try and do our best to parse more lines */
+ if ((strncasecmp(buf, Content_length, 15) == 0)) {
+ if(prequest != request_GET)
+ length = strtol(buf + 15, 0, 0); // extra read only for POST
+ } else if ((strncasecmp(buf, "Cookie:", 7) == 0)) {
+ for(test = buf + 7; isspace(*test); test++)
+ ;
+ cookie = strdup(test);
+ } else if ((strncasecmp(buf, "Content-Type:", 13) == 0)) {
+ for(test = buf + 13; isspace(*test); test++)
+ ;
+ content_type = strdup(test);
+ } else if ((strncasecmp(buf, "Referer:", 8) == 0)) {
+ for(test = buf + 8; isspace(*test); test++)
+ ;
+ config->referer = strdup(test);
+ }
#endif
#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- if (strncasecmp(buf, "Authorization:", 14) == 0) {
- /* We only allow Basic credentials.
- * It shows up as "Authorization: Basic <userid:password>" where
- * the userid:password is base64 encoded.
- */
- for(test = buf + 14; isspace(*test); test++)
- ;
- if (strncasecmp(test, "Basic", 5) != 0)
- continue;
-
- test += 5; /* decodeBase64() skiping space self */
- decodeBase64(test);
- credentials = checkPerm(url, test);
- }
+ if (strncasecmp(buf, "Authorization:", 14) == 0) {
+ /* We only allow Basic credentials.
+ * It shows up as "Authorization: Basic <userid:password>" where
+ * the userid:password is base64 encoded.
+ */
+ for(test = buf + 14; isspace(*test); test++)
+ ;
+ if (strncasecmp(test, "Basic", 5) != 0)
+ continue;
+
+ test += 5; /* decodeBase64() skiping space self */
+ decodeBase64(test);
+ credentials = checkPerm(url, test);
+ }
#endif /* CONFIG_FEATURE_HTTPD_BASIC_AUTH */
- } /* while extra header reading */
-
+ } /* while extra header reading */
+ }
+ (void) alarm( 0 );
+ if(config->alarm_signaled)
+ break;
if (strcmp(strrchr(url, '/') + 1, httpd_conf) == 0 || ip_allowed == 0) {
/* protect listing [/path]/httpd_conf or IP deny */
}
#endif
+ if(config->httpd_found.found_moved_temporarily) {
+ sendHeaders(HTTP_MOVED_TEMPORARILY);
+#if DEBUG
+ /* clear unforked memory flag */
+ config->httpd_found.found_moved_temporarily = NULL;
+#endif
+ break;
+ }
+
test = url + 1; /* skip first '/' */
#ifdef CONFIG_FEATURE_HTTPD_CGI
if (strncmp(test, "cgi-bin", 7) == 0) {
if(test[7] == '/' && test[8] == 0)
goto FORBIDDEN; // protect listing cgi-bin/
- sendCgi(url, prequest, urlArgs, length, cookie, content_type);
+ sendCgi(url, prequest, length, cookie, content_type);
} else {
if (prequest != request_GET)
sendHeaders(HTTP_NOT_IMPLEMENTED);
#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
/* from inetd don`t looping: freeing, closing automatic from exit always */
-# ifdef DEBUG
- if (config->debugHttpd) fprintf(stderr, "closing socket\n");
+# if DEBUG
+ fprintf(stderr, "closing socket\n");
# endif
# ifdef CONFIG_FEATURE_HTTPD_CGI
free(cookie);
free(content_type);
- free(config->remoteuser);
free(config->referer);
+#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
+ free(config->remoteuser);
+#endif
# endif
shutdown(a_c_w, SHUT_WR);
+
+ /* Properly wait for remote to closed */
+ FD_ZERO (&s_fd) ;
+ FD_SET (a_c_w, &s_fd) ;
+
+ do {
+ tv.tv_sec = 2 ;
+ tv.tv_usec = 0 ;
+ retval = select (a_c_w + 1, &s_fd, NULL, NULL, &tv);
+ } while (retval > 0 && (read (a_c_w, buf, sizeof (config->buf)) > 0));
+
shutdown(a_c_r, SHUT_RD);
close(config->accepted_socket);
#endif /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
while (1) {
readfd = portfd;
- /* Now wait INDEFINATELY on the set of sockets! */
+ /* Now wait INDEFINITELY on the set of sockets! */
if (select(server + 1, &readfd, 0, 0, 0) > 0) {
if (FD_ISSET(server, &readfd)) {
int on;
}
config->accepted_socket = s;
config->rmt_ip = ntohl(fromAddr.sin_addr.s_addr);
-#if defined(CONFIG_FEATURE_HTTPD_CGI) || defined(DEBUG)
+#if ENABLE_FEATURE_HTTPD_CGI || DEBUG
sprintf(config->rmt_ip_str, "%u.%u.%u.%u",
(unsigned char)(config->rmt_ip >> 24),
(unsigned char)(config->rmt_ip >> 16),
(unsigned char)(config->rmt_ip >> 8),
config->rmt_ip & 0xff);
config->port = ntohs(fromAddr.sin_port);
-#ifdef DEBUG
- if (config->debugHttpd) {
- bb_error_msg("connection from IP=%s, port %u\n",
+#if DEBUG
+ bb_error_msg("connection from IP=%s, port %u\n",
config->rmt_ip_str, config->port);
- }
#endif
#endif /* CONFIG_FEATURE_HTTPD_CGI */
on = 1;
setsockopt(s, SOL_SOCKET, SO_KEEPALIVE, (void *)&on, sizeof (on));
- if (config->debugHttpd || fork() == 0) {
+#if !DEBUG
+ if (fork() == 0)
+#endif
+ {
/* This is the spawned thread */
#ifdef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
/* protect reload config, may be confuse checking */
signal(SIGHUP, SIG_IGN);
#endif
handleIncoming();
- if(!config->debugHttpd)
- exit(0);
+#if !DEBUG
+ exit(0);
+#endif
}
close(s);
}
getpeername (0, (struct sockaddr *)&fromAddrLen, &sinlen);
config->rmt_ip = ntohl(fromAddrLen.sin_addr.s_addr);
-#if defined(CONFIG_FEATURE_HTTPD_CGI) || defined(DEBUG)
+#if ENABLE_FEATURE_HTTPD_CGI
sprintf(config->rmt_ip_str, "%u.%u.%u.%u",
(unsigned char)(config->rmt_ip >> 24),
(unsigned char)(config->rmt_ip >> 16),
}
#endif
+enum httpd_opts_nums {
+ c_opt_config_file = 0,
+ d_opt_decode_url,
+ h_opt_home_httpd,
+ USE_FEATURE_HTTPD_ENCODE_URL_STR(e_opt_encode_url,)
+ USE_FEATURE_HTTPD_BASIC_AUTH(r_opt_realm,)
+ USE_FEATURE_HTTPD_AUTH_MD5(m_opt_md5,)
+ USE_FEATURE_HTTPD_SETUID(u_opt_setuid,)
+ SKIP_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY(p_opt_port,)
+};
static const char httpd_opts[]="c:d:h:"
-#ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
- "e:"
-#define OPT_INC_1 1
-#else
-#define OPT_INC_1 0
-#endif
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- "r:"
-# ifdef CONFIG_FEATURE_HTTPD_AUTH_MD5
- "m:"
-# define OPT_INC_2 2
-# else
-# define OPT_INC_2 1
-#endif
-#else
-#define OPT_INC_2 0
-#endif
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- "p:v"
-#ifdef CONFIG_FEATURE_HTTPD_SETUID
- "u:"
-#endif
-#endif /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
- ;
+ USE_FEATURE_HTTPD_ENCODE_URL_STR("e:")
+ USE_FEATURE_HTTPD_BASIC_AUTH("r:")
+ USE_FEATURE_HTTPD_AUTH_MD5("m:")
+ USE_FEATURE_HTTPD_SETUID("u:")
+ SKIP_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY("p:");
+
+#define OPT_CONFIG_FILE (1<<c_opt_config_file)
+#define OPT_DECODE_URL (1<<d_opt_decode_url)
+#define OPT_HOME_HTTPD (1<<h_opt_home_httpd)
-#define OPT_CONFIG_FILE (1<<0)
-#define OPT_DECODE_URL (1<<1)
-#define OPT_HOME_HTTPD (1<<2)
-#define OPT_ENCODE_URL (1<<(2+OPT_INC_1))
-#define OPT_REALM (1<<(3+OPT_INC_1))
-#define OPT_MD5 (1<<(4+OPT_INC_1))
-#define OPT_PORT (1<<(3+OPT_INC_1+OPT_INC_2))
-#define OPT_DEBUG (1<<(4+OPT_INC_1+OPT_INC_2))
-#define OPT_SETUID (1<<(5+OPT_INC_1+OPT_INC_2))
+#define OPT_ENCODE_URL USE_FEATURE_HTTPD_ENCODE_URL_STR((1<<e_opt_encode_url)) \
+ SKIP_FEATURE_HTTPD_ENCODE_URL_STR(0)
+
+#define OPT_REALM USE_FEATURE_HTTPD_BASIC_AUTH((1<<r_opt_realm)) \
+ SKIP_FEATURE_HTTPD_BASIC_AUTH(0)
+
+#define OPT_MD5 USE_FEATURE_HTTPD_AUTH_MD5((1<<m_opt_md5)) \
+ SKIP_FEATURE_HTTPD_AUTH_MD5(0)
+
+#define OPT_SETUID USE_FEATURE_HTTPD_SETUID((1<<u_opt_setuid)) \
+ SKIP_FEATURE_HTTPD_SETUID(0)
+
+#define OPT_PORT SKIP_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY((1<<p_opt_port)) \
+ USE_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY(0)
#ifdef HTTPD_STANDALONE
unsigned long opt;
const char *home_httpd = home;
char *url_for_decode;
-#ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
- const char *url_for_encode;
-#endif
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- const char *s_port;
-#endif
-
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- int server;
-#endif
+ USE_FEATURE_HTTPD_ENCODE_URL_STR(const char *url_for_encode;)
+ SKIP_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY(const char *s_port;)
+ SKIP_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY(int server;)
-#ifdef CONFIG_FEATURE_HTTPD_SETUID
- const char *s_uid;
- long uid = -1;
-#endif
+ USE_FEATURE_HTTPD_SETUID(const char *s_uid;)
+ USE_FEATURE_HTTPD_SETUID(long uid = -1;)
-#ifdef CONFIG_FEATURE_HTTPD_AUTH_MD5
- const char *pass;
-#endif
+ USE_FEATURE_HTTPD_AUTH_MD5(const char *pass;)
config = xcalloc(1, sizeof(*config));
#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
opt = bb_getopt_ulflags(argc, argv, httpd_opts,
&(config->configFile), &url_for_decode, &home_httpd
-#ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
- , &url_for_encode
-#endif
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- , &(config->realm)
-# ifdef CONFIG_FEATURE_HTTPD_AUTH_MD5
- , &pass
-# endif
-#endif
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- , &s_port
-#ifdef CONFIG_FEATURE_HTTPD_SETUID
- , &s_uid
-#endif
-#endif
- );
+ USE_FEATURE_HTTPD_ENCODE_URL_STR(, &url_for_encode)
+ USE_FEATURE_HTTPD_BASIC_AUTH(, &(config->realm))
+ USE_FEATURE_HTTPD_AUTH_MD5(, &pass)
+ USE_FEATURE_HTTPD_SETUID(, &s_uid)
+ SKIP_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY(, &s_port)
+ );
if(opt & OPT_DECODE_URL) {
printf("%s", decodeString(url_for_decode, 1));
#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
if(opt & OPT_PORT)
config->port = bb_xgetlarg(s_port, 10, 1, 0xffff);
- config->debugHttpd = opt & OPT_DEBUG;
#ifdef CONFIG_FEATURE_HTTPD_SETUID
if(opt & OPT_SETUID) {
char *e;
uid = strtol(s_uid, &e, 0);
if(*e != '\0') {
/* not integer */
- uid = my_getpwnam(s_uid);
+ uid = bb_xgetpwnam(s_uid);
}
}
#endif
#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
server = openServer();
# ifdef CONFIG_FEATURE_HTTPD_SETUID
- /* drop privilegies */
+ /* drop privileges */
if(uid > 0)
setuid(uid);
# endif
parse_conf(default_path_httpd_conf, FIRST_PARSE);
#endif
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- if (!config->debugHttpd) {
- if (daemon(1, 0) < 0) /* don`t change curent directory */
+#if !ENABLE_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+# if !DEBUG
+ if (daemon(1, 0) < 0) /* don`t change curent directory */
bb_perror_msg_and_die("daemon");
- }
+# endif
return miniHttpd(server);
#else
return miniHttpd();
projects / oweals / busybox.git / blobdiff