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-rw-r--r--contrib/package/uhttpd/src/uhttpd-utils.c749
1 files changed, 0 insertions, 749 deletions
diff --git a/contrib/package/uhttpd/src/uhttpd-utils.c b/contrib/package/uhttpd/src/uhttpd-utils.c
deleted file mode 100644
index c1e08b069..000000000
--- a/contrib/package/uhttpd/src/uhttpd-utils.c
+++ /dev/null
@@ -1,749 +0,0 @@
-/*
- * uhttpd - Tiny single-threaded httpd - Utility functions
- *
- * Copyright (C) 2010 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.
- */
-
-#define _XOPEN_SOURCE 500 /* crypt() */
-#define _BSD_SOURCE /* strcasecmp(), strncasecmp() */
-
-#include "uhttpd.h"
-#include "uhttpd-utils.h"
-
-#ifdef HAVE_TLS
-#include "uhttpd-tls.h"
-#endif
-
-
-static char *uh_index_files[] = {
- "index.html",
- "index.htm",
- "default.html",
- "default.htm"
-};
-
-
-const char * sa_straddr(void *sa)
-{
- static char str[INET6_ADDRSTRLEN];
- struct sockaddr_in *v4 = (struct sockaddr_in *)sa;
- struct sockaddr_in6 *v6 = (struct sockaddr_in6 *)sa;
-
- if( v4->sin_family == AF_INET )
- return inet_ntop(AF_INET, &(v4->sin_addr), str, sizeof(str));
- else
- return inet_ntop(AF_INET6, &(v6->sin6_addr), str, sizeof(str));
-}
-
-const char * sa_strport(void *sa)
-{
- static char str[6];
- snprintf(str, sizeof(str), "%i", sa_port(sa));
- return str;
-}
-
-int sa_port(void *sa)
-{
- return ntohs(((struct sockaddr_in6 *)sa)->sin6_port);
-}
-
-/* Simple strstr() like function that takes len arguments for both haystack and needle. */
-char *strfind(char *haystack, int hslen, const char *needle, int ndlen)
-{
- int match = 0;
- int i, j;
-
- for( i = 0; i < hslen; i++ )
- {
- if( haystack[i] == needle[0] )
- {
- match = ((ndlen == 1) || ((i + ndlen) <= hslen));
-
- for( j = 1; (j < ndlen) && ((i + j) < hslen); j++ )
- {
- if( haystack[i+j] != needle[j] )
- {
- match = 0;
- break;
- }
- }
-
- if( match )
- return &haystack[i];
- }
- }
-
- return NULL;
-}
-
-
-int uh_tcp_send(struct client *cl, const char *buf, int len)
-{
- fd_set writer;
- struct timeval timeout;
-
- FD_ZERO(&writer);
- FD_SET(cl->socket, &writer);
-
- timeout.tv_sec = 0;
- timeout.tv_usec = 500000;
-
- if( select(cl->socket + 1, NULL, &writer, NULL, &timeout) > 0 )
- {
-#ifdef HAVE_TLS
- if( cl->tls )
- return cl->server->conf->tls_send(cl, (void *)buf, len);
- else
-#endif
- return send(cl->socket, buf, len, 0);
- }
-
- return -1;
-}
-
-int uh_tcp_peek(struct client *cl, char *buf, int len)
-{
- int sz = uh_tcp_recv(cl, buf, len);
-
- /* store received data in peek buffer */
- if( sz > 0 )
- {
- cl->peeklen = sz;
- memcpy(cl->peekbuf, buf, sz);
- }
-
- return sz;
-}
-
-int uh_tcp_recv(struct client *cl, char *buf, int len)
-{
- int sz = 0;
- int rsz = 0;
-
- /* first serve data from peek buffer */
- if( cl->peeklen > 0 )
- {
- sz = min(cl->peeklen, len);
- len -= sz; cl->peeklen -= sz;
-
- memcpy(buf, cl->peekbuf, sz);
- memmove(cl->peekbuf, &cl->peekbuf[sz], cl->peeklen);
- }
-
- /* caller wants more */
- if( len > 0 )
- {
-#ifdef HAVE_TLS
- if( cl->tls )
- rsz = cl->server->conf->tls_recv(cl, (void *)&buf[sz], len);
- else
-#endif
- rsz = recv(cl->socket, (void *)&buf[sz], len, 0);
-
- if( (sz == 0) || (rsz > 0) )
- sz += rsz;
- }
-
- return sz;
-}
-
-#define ensure(x) \
- do { if( x < 0 ) return -1; } while(0)
-
-int uh_http_sendhf(struct client *cl, int code, const char *summary, const char *fmt, ...)
-{
- va_list ap;
-
- char buffer[UH_LIMIT_MSGHEAD];
- int len;
-
- len = snprintf(buffer, sizeof(buffer),
- "HTTP/1.1 %03i %s\r\n"
- "Connection: close\r\n"
- "Content-Type: text/plain\r\n"
- "Transfer-Encoding: chunked\r\n\r\n",
- code, summary
- );
-
- ensure(uh_tcp_send(cl, buffer, len));
-
- va_start(ap, fmt);
- len = vsnprintf(buffer, sizeof(buffer), fmt, ap);
- va_end(ap);
-
- ensure(uh_http_sendc(cl, buffer, len));
- ensure(uh_http_sendc(cl, NULL, 0));
-
- return 0;
-}
-
-
-int uh_http_sendc(struct client *cl, const char *data, int len)
-{
- char chunk[8];
- int clen;
-
- if( len == -1 )
- len = strlen(data);
-
- if( len > 0 )
- {
- clen = snprintf(chunk, sizeof(chunk), "%X\r\n", len);
- ensure(uh_tcp_send(cl, chunk, clen));
- ensure(uh_tcp_send(cl, data, len));
- ensure(uh_tcp_send(cl, "\r\n", 2));
- }
- else
- {
- ensure(uh_tcp_send(cl, "0\r\n\r\n", 5));
- }
-
- return 0;
-}
-
-int uh_http_sendf(
- struct client *cl, struct http_request *req, const char *fmt, ...
-) {
- va_list ap;
- char buffer[UH_LIMIT_MSGHEAD];
- int len;
-
- va_start(ap, fmt);
- len = vsnprintf(buffer, sizeof(buffer), fmt, ap);
- va_end(ap);
-
- if( (req != NULL) && (req->version > 1.0) )
- ensure(uh_http_sendc(cl, buffer, len));
- else if( len > 0 )
- ensure(uh_tcp_send(cl, buffer, len));
-
- return 0;
-}
-
-int uh_http_send(
- struct client *cl, struct http_request *req, const char *buf, int len
-) {
- if( len < 0 )
- len = strlen(buf);
-
- if( (req != NULL) && (req->version > 1.0) )
- ensure(uh_http_sendc(cl, buf, len));
- else if( len > 0 )
- ensure(uh_tcp_send(cl, buf, len));
-
- return 0;
-}
-
-
-int uh_urldecode(char *buf, int blen, const char *src, int slen)
-{
- int i;
- int len = 0;
-
-#define hex(x) \
- (((x) <= '9') ? ((x) - '0') : \
- (((x) <= 'F') ? ((x) - 'A' + 10) : \
- ((x) - 'a' + 10)))
-
- for( i = 0; (i <= slen) && (i <= blen); i++ )
- {
- if( src[i] == '%' )
- {
- if( ((i+2) <= slen) && isxdigit(src[i+1]) && isxdigit(src[i+2]) )
- {
- buf[len++] = (char)(16 * hex(src[i+1]) + hex(src[i+2]));
- i += 2;
- }
- else
- {
- buf[len++] = '%';
- }
- }
- else
- {
- buf[len++] = src[i];
- }
- }
-
- return len;
-}
-
-int uh_urlencode(char *buf, int blen, const char *src, int slen)
-{
- int i;
- int len = 0;
- const char hex[] = "0123456789abcdef";
-
- for( i = 0; (i <= slen) && (i <= blen); i++ )
- {
- if( isalnum(src[i]) || (src[i] == '-') || (src[i] == '_') ||
- (src[i] == '.') || (src[i] == '~') )
- {
- buf[len++] = src[i];
- }
- else if( (len+3) <= blen )
- {
- buf[len++] = '%';
- buf[len++] = hex[(src[i] >> 4) & 15];
- buf[len++] = hex[(src[i] & 15) & 15];
- }
- else
- {
- break;
- }
- }
-
- return len;
-}
-
-int uh_b64decode(char *buf, int blen, const unsigned char *src, int slen)
-{
- int i = 0;
- int len = 0;
-
- unsigned int cin = 0;
- unsigned int cout = 0;
-
-
- for( i = 0; (i <= slen) && (src[i] != 0); i++ )
- {
- cin = src[i];
-
- if( (cin >= '0') && (cin <= '9') )
- cin = cin - '0' + 52;
- else if( (cin >= 'A') && (cin <= 'Z') )
- cin = cin - 'A';
- else if( (cin >= 'a') && (cin <= 'z') )
- cin = cin - 'a' + 26;
- else if( cin == '+' )
- cin = 62;
- else if( cin == '/' )
- cin = 63;
- else if( cin == '=' )
- cin = 0;
- else
- continue;
-
- cout = (cout << 6) | cin;
-
- if( (i % 4) == 3 )
- {
- if( (len + 3) < blen )
- {
- buf[len++] = (char)(cout >> 16);
- buf[len++] = (char)(cout >> 8);
- buf[len++] = (char)(cout);
- }
- else
- {
- break;
- }
- }
- }
-
- buf[len++] = 0;
- return len;
-}
-
-
-struct path_info * uh_path_lookup(struct client *cl, const char *url)
-{
- static char path_phys[PATH_MAX];
- static char path_info[PATH_MAX];
- static struct path_info p;
-
- char buffer[UH_LIMIT_MSGHEAD];
- char *docroot = cl->server->conf->docroot;
- char *pathptr = NULL;
-
- int i = 0;
- struct stat s;
-
-
- memset(path_phys, 0, sizeof(path_phys));
- memset(path_info, 0, sizeof(path_info));
- memset(buffer, 0, sizeof(buffer));
- memset(&p, 0, sizeof(p));
-
- /* copy docroot */
- memcpy(buffer, docroot,
- min(strlen(docroot), sizeof(buffer) - 1));
-
- /* separate query string from url */
- if( (pathptr = strchr(url, '?')) != NULL )
- {
- p.query = pathptr[1] ? pathptr + 1 : NULL;
-
- /* urldecode component w/o query */
- if( pathptr > url )
- uh_urldecode(
- &buffer[strlen(docroot)],
- sizeof(buffer) - strlen(docroot) - 1,
- url, (int)(pathptr - url) - 1
- );
- }
-
- /* no query string, decode all of url */
- else
- {
- uh_urldecode(
- &buffer[strlen(docroot)],
- sizeof(buffer) - strlen(docroot) - 1,
- url, strlen(url)
- );
- }
-
- /* create canon path */
- for( i = strlen(buffer); i >= 0; i-- )
- {
- if( (buffer[i] == 0) || (buffer[i] == '/') )
- {
- memset(path_info, 0, sizeof(path_info));
- memcpy(path_info, buffer, min(i + 1, sizeof(path_info) - 1));
-
- if( realpath(path_info, path_phys) )
- {
- memset(path_info, 0, sizeof(path_info));
- memcpy(path_info, &buffer[i],
- min(strlen(buffer) - i, sizeof(path_info) - 1));
-
- break;
- }
- }
- }
-
- /* check whether found path is within docroot */
- if( strncmp(path_phys, docroot, strlen(docroot)) ||
- ((path_phys[strlen(docroot)] != 0) &&
- (path_phys[strlen(docroot)] != '/'))
- ) {
- return NULL;
- }
-
- /* test current path */
- if( ! stat(path_phys, &p.stat) )
- {
- /* is a regular file */
- if( p.stat.st_mode & S_IFREG )
- {
- p.root = docroot;
- p.phys = path_phys;
- p.name = &path_phys[strlen(docroot)];
- p.info = path_info[0] ? path_info : NULL;
- }
-
- /* is a directory */
- else if( (p.stat.st_mode & S_IFDIR) && !strlen(path_info) )
- {
- /* ensure trailing slash */
- if( path_phys[strlen(path_phys)-1] != '/' )
- path_phys[strlen(path_phys)] = '/';
-
- /* try to locate index file */
- memset(buffer, 0, sizeof(buffer));
- memcpy(buffer, path_phys, sizeof(buffer));
- pathptr = &buffer[strlen(buffer)];
-
- for( i = 0; i < array_size(uh_index_files); i++ )
- {
- strncat(buffer, uh_index_files[i], sizeof(buffer));
-
- if( !stat(buffer, &s) && (s.st_mode & S_IFREG) )
- {
- memcpy(path_phys, buffer, sizeof(path_phys));
- memcpy(&p.stat, &s, sizeof(p.stat));
- break;
- }
-
- *pathptr = 0;
- }
-
- p.root = docroot;
- p.phys = path_phys;
- p.name = &path_phys[strlen(docroot)];
- }
- }
-
- return p.phys ? &p : NULL;
-}
-
-
-static char uh_realms[UH_LIMIT_AUTHREALMS * sizeof(struct auth_realm)] = { 0 };
-static int uh_realm_count = 0;
-
-struct auth_realm * uh_auth_add(char *path, char *user, char *pass)
-{
- struct auth_realm *new = NULL;
- struct passwd *pwd;
- struct spwd *spwd;
-
- if( uh_realm_count < UH_LIMIT_AUTHREALMS )
- {
- new = (struct auth_realm *)
- &uh_realms[uh_realm_count * sizeof(struct auth_realm)];
-
- memset(new, 0, sizeof(struct auth_realm));
-
- memcpy(new->path, path,
- min(strlen(path), sizeof(new->path) - 1));
-
- memcpy(new->user, user,
- min(strlen(user), sizeof(new->user) - 1));
-
- /* given password refers to a passwd entry */
- if( (strlen(pass) > 3) && !strncmp(pass, "$p$", 3) )
- {
- /* try to resolve shadow entry */
- if( ((spwd = getspnam(&pass[3])) != NULL) && spwd->sp_pwdp )
- {
- memcpy(new->pass, spwd->sp_pwdp,
- min(strlen(spwd->sp_pwdp), sizeof(new->pass) - 1));
- }
-
- /* try to resolve passwd entry */
- else if( ((pwd = getpwnam(&pass[3])) != NULL) && pwd->pw_passwd &&
- (pwd->pw_passwd[0] != '!') && (pwd->pw_passwd[0] != 0)
- ) {
- memcpy(new->pass, pwd->pw_passwd,
- min(strlen(pwd->pw_passwd), sizeof(new->pass) - 1));
- }
- }
-
- /* ordinary pwd */
- else
- {
- memcpy(new->pass, pass,
- min(strlen(pass), sizeof(new->pass) - 1));
- }
-
- uh_realm_count++;
- }
-
- return new;
-}
-
-int uh_auth_check(
- struct client *cl, struct http_request *req, struct path_info *pi
-) {
- int i, plen, rlen, protected;
- char buffer[UH_LIMIT_MSGHEAD];
- char *user = NULL;
- char *pass = NULL;
-
- struct auth_realm *realm = NULL;
-
- plen = strlen(pi->name);
- protected = 0;
-
- /* check whether at least one realm covers the requested url */
- for( i = 0; i < uh_realm_count; i++ )
- {
- realm = (struct auth_realm *)
- &uh_realms[i * sizeof(struct auth_realm)];
-
- rlen = strlen(realm->path);
-
- if( (plen >= rlen) && !strncasecmp(pi->name, realm->path, rlen) )
- {
- req->realm = realm;
- protected = 1;
- break;
- }
- }
-
- /* requested resource is covered by a realm */
- if( protected )
- {
- /* try to get client auth info */
- foreach_header(i, req->headers)
- {
- if( !strcasecmp(req->headers[i], "Authorization") &&
- (strlen(req->headers[i+1]) > 6) &&
- !strncasecmp(req->headers[i+1], "Basic ", 6)
- ) {
- memset(buffer, 0, sizeof(buffer));
- uh_b64decode(buffer, sizeof(buffer) - 1,
- (unsigned char *) &req->headers[i+1][6],
- strlen(req->headers[i+1]) - 6);
-
- if( (pass = strchr(buffer, ':')) != NULL )
- {
- user = buffer;
- *pass++ = 0;
- }
-
- break;
- }
- }
-
- /* have client auth */
- if( user && pass )
- {
- /* find matching realm */
- for( i = 0, realm = NULL; i < uh_realm_count; i++ )
- {
- realm = (struct auth_realm *)
- &uh_realms[i * sizeof(struct auth_realm)];
-
- rlen = strlen(realm->path);
-
- if( (plen >= rlen) &&
- !strncasecmp(pi->name, realm->path, rlen) &&
- !strcmp(user, realm->user)
- ) {
- req->realm = realm;
- break;
- }
-
- realm = NULL;
- }
-
- /* found a realm matching the username */
- if( realm )
- {
- /* is a crypt passwd */
- if( realm->pass[0] == '$' )
- pass = crypt(pass, realm->pass);
-
- /* check user pass */
- if( !strcmp(pass, realm->pass) )
- return 1;
- }
- }
-
- /* 401 */
- uh_http_sendf(cl, NULL,
- "HTTP/%.1f 401 Authorization Required\r\n"
- "WWW-Authenticate: Basic realm=\"%s\"\r\n"
- "Content-Type: text/plain\r\n"
- "Content-Length: 23\r\n\r\n"
- "Authorization Required\n",
- req->version, cl->server->conf->realm
- );
-
- return 0;
- }
-
- return 1;
-}
-
-
-static char uh_listeners[UH_LIMIT_LISTENERS * sizeof(struct listener)] = { 0 };
-static char uh_clients[UH_LIMIT_CLIENTS * sizeof(struct client)] = { 0 };
-
-static int uh_listener_count = 0;
-static int uh_client_count = 0;
-
-
-struct listener * uh_listener_add(int sock, struct config *conf)
-{
- struct listener *new = NULL;
- socklen_t sl;
-
- if( uh_listener_count < UH_LIMIT_LISTENERS )
- {
- new = (struct listener *)
- &uh_listeners[uh_listener_count * sizeof(struct listener)];
-
- new->socket = sock;
- new->conf = conf;
-
- /* get local endpoint addr */
- sl = sizeof(struct sockaddr_in6);
- memset(&(new->addr), 0, sl);
- getsockname(sock, (struct sockaddr *) &(new->addr), &sl);
-
- uh_listener_count++;
- }
-
- return new;
-}
-
-struct listener * uh_listener_lookup(int sock)
-{
- struct listener *cur = NULL;
- int i;
-
- for( i = 0; i < uh_listener_count; i++ )
- {
- cur = (struct listener *) &uh_listeners[i * sizeof(struct listener)];
-
- if( cur->socket == sock )
- return cur;
- }
-
- return NULL;
-}
-
-
-struct client * uh_client_add(int sock, struct listener *serv)
-{
- struct client *new = NULL;
- socklen_t sl;
-
- if( uh_client_count < UH_LIMIT_CLIENTS )
- {
- new = (struct client *)
- &uh_clients[uh_client_count * sizeof(struct client)];
-
- new->socket = sock;
- new->server = serv;
-
- /* get remote endpoint addr */
- sl = sizeof(struct sockaddr_in6);
- memset(&(new->peeraddr), 0, sl);
- getpeername(sock, (struct sockaddr *) &(new->peeraddr), &sl);
-
- /* get local endpoint addr */
- sl = sizeof(struct sockaddr_in6);
- memset(&(new->servaddr), 0, sl);
- getsockname(sock, (struct sockaddr *) &(new->servaddr), &sl);
-
- uh_client_count++;
- }
-
- return new;
-}
-
-struct client * uh_client_lookup(int sock)
-{
- struct client *cur = NULL;
- int i;
-
- for( i = 0; i < uh_client_count; i++ )
- {
- cur = (struct client *) &uh_clients[i * sizeof(struct client)];
-
- if( cur->socket == sock )
- return cur;
- }
-
- return NULL;
-}
-
-void uh_client_remove(int sock)
-{
- struct client *del = uh_client_lookup(sock);
-
- if( del )
- {
- memmove(del, del + 1,
- sizeof(uh_clients) - (int)((char *)del - uh_clients) - sizeof(struct client));
-
- uh_client_count--;
- }
-}
-
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 07:38:12 +0000