/*
* uhttpd - Tiny single-threaded httpd - Static file handler
*
- * Copyright (C) 2010 Jo-Philipp Wich <xm@subsignal.org>
+ * 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.
static const char * uh_file_mime_lookup(const char *path)
{
struct mimetype *m = &uh_mime_types[0];
- char *p, *pd, *ps;
+ const char *e;
- ps = strrchr(path, '/');
- pd = strrchr(path, '.');
-
- /* use either slash or dot as separator, whatever comes last */
- p = (ps && pd && (ps > pd)) ? ps : pd;
-
- if( (p != NULL) && (*(++p) != 0) )
+ while (m->extn)
{
- while( m->extn )
+ e = &path[strlen(path)-1];
+
+ while (e >= path)
{
- if( ! strcasecmp(p, m->extn) )
+ if ((*e == '.' || *e == '/') && !strcasecmp(&e[1], m->extn))
return m->mime;
- m++;
+ e--;
}
+
+ m++;
}
return "application/octet-stream";
static char tag[128];
snprintf(tag, sizeof(tag), "\"%x-%x-%x\"",
- (unsigned int) s->st_ino,
- (unsigned int) s->st_size,
- (unsigned int) s->st_mtime
- );
+ (unsigned int) s->st_ino,
+ (unsigned int) s->st_size,
+ (unsigned int) s->st_mtime);
return tag;
}
memset(&t, 0, sizeof(t));
- if( strptime(date, "%a, %d %b %Y %H:%M:%S %Z", &t) != NULL )
+ if (strptime(date, "%a, %d %b %Y %H:%M:%S %Z", &t) != NULL)
return timegm(&t);
return 0;
return str;
}
-static char * uh_file_header_lookup(struct http_request *req, const char *name)
+static char * uh_file_header_lookup(struct client *cl, const char *name)
{
int i;
- foreach_header(i, req->headers)
+ foreach_header(i, cl->request.headers)
{
- if( ! strcasecmp(req->headers[i], name) )
- return req->headers[i+1];
+ if (!strcasecmp(cl->request.headers[i], name))
+ return cl->request.headers[i+1];
}
return NULL;
}
-static void uh_file_response_ok_hdrs(struct client *cl, struct http_request *req, struct stat *s)
+
+static int uh_file_response_ok_hdrs(struct client *cl, struct stat *s)
{
- uh_http_sendf(cl, NULL, "Connection: close\r\n");
+ ensure_ret(uh_http_sendf(cl, NULL, "Connection: close\r\n"));
- if( s )
+ if (s)
{
- uh_http_sendf(cl, NULL, "ETag: %s\r\n", uh_file_mktag(s));
- uh_http_sendf(cl, NULL, "Last-Modified: %s\r\n", uh_file_unix2date(s->st_mtime));
+ ensure_ret(uh_http_sendf(cl, NULL, "ETag: %s\r\n", uh_file_mktag(s)));
+ ensure_ret(uh_http_sendf(cl, NULL, "Last-Modified: %s\r\n",
+ uh_file_unix2date(s->st_mtime)));
}
- uh_http_sendf(cl, NULL, "Date: %s\r\n", uh_file_unix2date(time(NULL)));
+ return uh_http_sendf(cl, NULL, "Date: %s\r\n", uh_file_unix2date(time(NULL)));
}
-static void uh_file_response_200(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_response_200(struct client *cl, struct stat *s)
{
- uh_http_sendf(cl, NULL, "HTTP/%.1f 200 OK\r\n", req->version);
- uh_file_response_ok_hdrs(cl, req, s);
+ ensure_ret(uh_http_sendf(cl, NULL, "%s 200 OK\r\n",
+ http_versions[cl->request.version]));
+
+ return uh_file_response_ok_hdrs(cl, s);
}
-static void uh_file_response_304(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_response_304(struct client *cl, struct stat *s)
{
- uh_http_sendf(cl, NULL, "HTTP/%.1f 304 Not Modified\r\n", req->version);
- uh_file_response_ok_hdrs(cl, req, s);
+ ensure_ret(uh_http_sendf(cl, NULL, "%s 304 Not Modified\r\n",
+ http_versions[cl->request.version]));
+
+ return uh_file_response_ok_hdrs(cl, s);
}
-static void uh_file_response_412(struct client *cl, struct http_request *req)
+static int uh_file_response_412(struct client *cl)
{
- uh_http_sendf(cl, NULL,
- "HTTP/%.1f 412 Precondition Failed\r\n"
- "Connection: close\r\n", req->version);
+ return uh_http_sendf(cl, NULL,
+ "%s 412 Precondition Failed\r\n"
+ "Connection: close\r\n",
+ http_versions[cl->request.version]);
}
-static int uh_file_if_match(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_match(struct client *cl, struct stat *s, int *ok)
{
const char *tag = uh_file_mktag(s);
- char *hdr = uh_file_header_lookup(req, "If-Match");
+ char *hdr = uh_file_header_lookup(cl, "If-Match");
char *p;
int i;
- if( hdr )
+ if (hdr)
{
p = &hdr[0];
- for( i = 0; i < strlen(hdr); i++ )
+ for (i = 0; i < strlen(hdr); i++)
{
- if( (hdr[i] == ' ') || (hdr[i] == ',') )
+ if ((hdr[i] == ' ') || (hdr[i] == ','))
{
hdr[i++] = 0;
p = &hdr[i];
}
- else if( !strcmp(p, "*") || !strcmp(p, tag) )
+ else if (!strcmp(p, "*") || !strcmp(p, tag))
{
- return 1;
+ *ok = 1;
+ return *ok;
}
}
- uh_file_response_412(cl, req);
- return 0;
+ *ok = 0;
+ ensure_ret(uh_file_response_412(cl));
+ return *ok;
}
- return 1;
+ *ok = 1;
+ return *ok;
}
-static int uh_file_if_modified_since(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_modified_since(struct client *cl, struct stat *s, int *ok)
{
- char *hdr = uh_file_header_lookup(req, "If-Modified-Since");
+ char *hdr = uh_file_header_lookup(cl, "If-Modified-Since");
+ *ok = 1;
- if( hdr )
+ if (hdr)
{
- if( uh_file_date2unix(hdr) < s->st_mtime )
- {
- return 1;
- }
- else
+ if (uh_file_date2unix(hdr) >= s->st_mtime)
{
- uh_file_response_304(cl, req, s);
- return 0;
+ *ok = 0;
+ ensure_ret(uh_file_response_304(cl, s));
}
}
- return 1;
+ return *ok;
}
-static int uh_file_if_none_match(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_none_match(struct client *cl, struct stat *s, int *ok)
{
const char *tag = uh_file_mktag(s);
- char *hdr = uh_file_header_lookup(req, "If-None-Match");
+ char *hdr = uh_file_header_lookup(cl, "If-None-Match");
char *p;
int i;
+ *ok = 1;
- if( hdr )
+ if (hdr)
{
p = &hdr[0];
- for( i = 0; i < strlen(hdr); i++ )
+ for (i = 0; i < strlen(hdr); i++)
{
- if( (hdr[i] == ' ') || (hdr[i] == ',') )
+ if ((hdr[i] == ' ') || (hdr[i] == ','))
{
hdr[i++] = 0;
p = &hdr[i];
}
- else if( !strcmp(p, "*") || !strcmp(p, tag) )
+ else if (!strcmp(p, "*") || !strcmp(p, tag))
{
- if( (req->method == UH_HTTP_MSG_GET) ||
- (req->method == UH_HTTP_MSG_HEAD) )
- uh_file_response_304(cl, req, s);
+ *ok = 0;
+
+ if ((cl->request.method == UH_HTTP_MSG_GET) ||
+ (cl->request.method == UH_HTTP_MSG_HEAD))
+ {
+ ensure_ret(uh_file_response_304(cl, s));
+ }
else
- uh_file_response_412(cl, req);
+ {
+ ensure_ret(uh_file_response_412(cl));
+ }
- return 0;
+ break;
}
}
}
- return 1;
+ return *ok;
}
-static int uh_file_if_range(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_range(struct client *cl, struct stat *s, int *ok)
{
- char *hdr = uh_file_header_lookup(req, "If-Range");
+ char *hdr = uh_file_header_lookup(cl, "If-Range");
+ *ok = 1;
- if( hdr )
+ if (hdr)
{
- uh_file_response_412(cl, req);
- return 0;
+ *ok = 0;
+ ensure_ret(uh_file_response_412(cl));
}
- return 1;
+ return *ok;
}
-static int uh_file_if_unmodified_since(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_unmodified_since(struct client *cl, struct stat *s,
+ int *ok)
{
- char *hdr = uh_file_header_lookup(req, "If-Unmodified-Since");
+ char *hdr = uh_file_header_lookup(cl, "If-Unmodified-Since");
+ *ok = 1;
- if( hdr )
+ if (hdr)
{
- if( uh_file_date2unix(hdr) <= s->st_mtime )
+ if (uh_file_date2unix(hdr) <= s->st_mtime)
{
- uh_file_response_412(cl, req);
- return 0;
+ *ok = 0;
+ ensure_ret(uh_file_response_412(cl));
}
}
- return 1;
+ return *ok;
}
return strcmp(e->d_name, ".") ? 1 : 0;
}
-static void uh_file_dirlist(struct client *cl, struct http_request *req, struct path_info *pi)
+static void uh_file_dirlist(struct client *cl, struct path_info *pi)
{
- int i, count;
+ int i;
+ int count = 0;
char filename[PATH_MAX];
char *pathptr;
struct dirent **files = NULL;
struct stat s;
- uh_http_sendf(cl, req,
- "<html><head><title>Index of %s</title></head>"
- "<body><h1>Index of %s</h1><hr /><ol>",
- pi->name, pi->name
- );
+ ensure_out(uh_http_sendf(cl, &cl->request,
+ "<html><head><title>Index of %s</title></head>"
+ "<body><h1>Index of %s</h1><hr /><ol>",
+ pi->name, pi->name));
- if( (count = scandir(pi->phys, &files, uh_file_scandir_filter_dir, alphasort)) > 0 )
+ if ((count = scandir(pi->phys, &files, uh_file_scandir_filter_dir,
+ alphasort)) > 0)
{
memset(filename, 0, sizeof(filename));
memcpy(filename, pi->phys, sizeof(filename));
pathptr = &filename[strlen(filename)];
/* list subdirs */
- for( i = 0; i < count; i++ )
+ for (i = 0; i < count; i++)
{
strncat(filename, files[i]->d_name,
- sizeof(filename) - strlen(files[i]->d_name));
+ sizeof(filename) - strlen(files[i]->d_name));
- if( !stat(filename, &s) && (s.st_mode & S_IFDIR) )
- uh_http_sendf(cl, req,
- "<li><strong><a href='%s%s'>%s</a>/</strong><br />"
- "<small>modified: %s<br />directory - %.02f kbyte"
- "<br /><br /></small></li>",
- pi->name, files[i]->d_name, files[i]->d_name,
- uh_file_unix2date(s.st_mtime), s.st_size / 1024.0
- );
+ if (!stat(filename, &s) &&
+ (s.st_mode & S_IFDIR) && (s.st_mode & S_IXOTH))
+ {
+ ensure_out(uh_http_sendf(cl, &cl->request,
+ "<li><strong><a href='%s%s'>%s</a>/"
+ "</strong><br /><small>modified: %s"
+ "<br />directory - %.02f kbyte<br />"
+ "<br /></small></li>",
+ pi->name, files[i]->d_name,
+ files[i]->d_name,
+ uh_file_unix2date(s.st_mtime),
+ s.st_size / 1024.0));
+ }
*pathptr = 0;
}
/* list files */
- for( i = 0; i < count; i++ )
+ for (i = 0; i < count; i++)
{
strncat(filename, files[i]->d_name,
- sizeof(filename) - strlen(files[i]->d_name));
-
- if( !stat(filename, &s) && !(s.st_mode & S_IFDIR) )
- uh_http_sendf(cl, req,
- "<li><strong><a href='%s%s'>%s</a></strong><br />"
- "<small>modified: %s<br />%s - %.02f kbyte<br />"
- "<br /></small></li>",
- pi->name, files[i]->d_name, files[i]->d_name,
- uh_file_unix2date(s.st_mtime),
- uh_file_mime_lookup(filename), s.st_size / 1024.0
- );
+ sizeof(filename) - strlen(files[i]->d_name));
+
+ if (!stat(filename, &s) &&
+ !(s.st_mode & S_IFDIR) && (s.st_mode & S_IROTH))
+ {
+ ensure_out(uh_http_sendf(cl, &cl->request,
+ "<li><strong><a href='%s%s'>%s</a>"
+ "</strong><br /><small>modified: %s"
+ "<br />%s - %.02f kbyte<br />"
+ "<br /></small></li>",
+ pi->name, files[i]->d_name,
+ files[i]->d_name,
+ uh_file_unix2date(s.st_mtime),
+ uh_file_mime_lookup(filename),
+ s.st_size / 1024.0));
+ }
*pathptr = 0;
- free(files[i]);
}
}
- free(files);
+ ensure_out(uh_http_sendf(cl, &cl->request, "</ol><hr /></body></html>"));
+ ensure_out(uh_http_sendf(cl, &cl->request, ""));
+
+out:
+ if (files)
+ {
+ for (i = 0; i < count; i++)
+ free(files[i]);
- uh_http_sendf(cl, req, "</ol><hr /></body></html>");
- uh_http_sendf(cl, req, "");
+ free(files);
+ }
}
-void uh_file_request(struct client *cl, struct http_request *req, struct path_info *pi)
+bool uh_file_request(struct client *cl, struct path_info *pi)
{
- int fd, rlen;
+ int rlen;
+ int ok = 1;
+ int fd = -1;
char buf[UH_LIMIT_MSGHEAD];
/* we have a file */
- if( (pi->stat.st_mode & S_IFREG) && ((fd = open(pi->phys, O_RDONLY)) > 0) )
+ if ((pi->stat.st_mode & S_IFREG) && ((fd = open(pi->phys, O_RDONLY)) > 0))
{
/* test preconditions */
- if(
- uh_file_if_modified_since(cl, req, &pi->stat) &&
- uh_file_if_match(cl, req, &pi->stat) &&
- uh_file_if_range(cl, req, &pi->stat) &&
- uh_file_if_unmodified_since(cl, req, &pi->stat) &&
- uh_file_if_none_match(cl, req, &pi->stat)
- ) {
+ if (ok) ensure_out(uh_file_if_modified_since(cl, &pi->stat, &ok));
+ if (ok) ensure_out(uh_file_if_match(cl, &pi->stat, &ok));
+ if (ok) ensure_out(uh_file_if_range(cl, &pi->stat, &ok));
+ if (ok) ensure_out(uh_file_if_unmodified_since(cl, &pi->stat, &ok));
+ if (ok) ensure_out(uh_file_if_none_match(cl, &pi->stat, &ok));
+
+ if (ok > 0)
+ {
/* write status */
- uh_file_response_200(cl, req, &pi->stat);
+ ensure_out(uh_file_response_200(cl, &pi->stat));
- uh_http_sendf(cl, NULL, "Content-Type: %s\r\n", uh_file_mime_lookup(pi->name));
- uh_http_sendf(cl, NULL, "Content-Length: %i\r\n", pi->stat.st_size);
+ ensure_out(uh_http_sendf(cl, NULL, "Content-Type: %s\r\n",
+ uh_file_mime_lookup(pi->name)));
+
+ ensure_out(uh_http_sendf(cl, NULL, "Content-Length: %i\r\n",
+ pi->stat.st_size));
/* if request was HTTP 1.1 we'll respond chunked */
- if( (req->version > 1.0) && (req->method != UH_HTTP_MSG_HEAD) )
- uh_http_send(cl, NULL, "Transfer-Encoding: chunked\r\n", -1);
+ if ((cl->request.version > 1.0) &&
+ (cl->request.method != UH_HTTP_MSG_HEAD))
+ {
+ ensure_out(uh_http_send(cl, NULL,
+ "Transfer-Encoding: chunked\r\n", -1));
+ }
/* close header */
- uh_http_send(cl, NULL, "\r\n", -1);
+ ensure_out(uh_http_send(cl, NULL, "\r\n", -1));
/* send body */
- if( req->method != UH_HTTP_MSG_HEAD )
+ if (cl->request.method != UH_HTTP_MSG_HEAD)
{
/* pump file data */
- while( (rlen = read(fd, buf, sizeof(buf))) > 0 )
- {
- if( uh_http_send(cl, req, buf, rlen) < 0 )
- break;
- }
+ while ((rlen = read(fd, buf, sizeof(buf))) > 0)
+ ensure_out(uh_http_send(cl, &cl->request, buf, rlen));
/* send trailer in chunked mode */
- uh_http_send(cl, req, "", 0);
+ ensure_out(uh_http_send(cl, &cl->request, "", 0));
}
}
/* one of the preconditions failed, terminate opened header and exit */
else
{
- uh_http_send(cl, NULL, "\r\n", -1);
+ ensure_out(uh_http_send(cl, NULL, "\r\n", -1));
}
-
- close(fd);
}
/* directory */
- else if( pi->stat.st_mode & S_IFDIR )
+ else if ((pi->stat.st_mode & S_IFDIR) && !cl->server->conf->no_dirlists)
{
/* write status */
- uh_file_response_200(cl, req, NULL);
+ ensure_out(uh_file_response_200(cl, NULL));
- if( req->version > 1.0 )
- uh_http_send(cl, NULL, "Transfer-Encoding: chunked\r\n", -1);
+ if (cl->request.version > 1.0)
+ ensure_out(uh_http_send(cl, NULL,
+ "Transfer-Encoding: chunked\r\n", -1));
- uh_http_send(cl, NULL, "Content-Type: text/html\r\n\r\n", -1);
+ ensure_out(uh_http_send(cl, NULL,
+ "Content-Type: text/html\r\n\r\n", -1));
/* content */
- uh_file_dirlist(cl, req, pi);
+ uh_file_dirlist(cl, pi);
}
/* 403 */
else
{
- uh_http_sendhf(cl, 403, "Forbidden",
- "Access to this resource is forbidden");
+ ensure_out(uh_http_sendhf(cl, 403, "Forbidden",
+ "Access to this resource is forbidden"));
}
-}
+out:
+ if (fd > -1)
+ close(fd);
+
+ return false;
+}