--- /dev/null
+cmake_minimum_required(VERSION 2.6)
+
+PROJECT(uhttpd C)
+ADD_DEFINITIONS(-O1 -Wall -Werror --std=gnu99 -g3)
+
+IF(APPLE)
+ INCLUDE_DIRECTORIES(/opt/local/include)
+ LINK_DIRECTORIES(/opt/local/lib)
+ENDIF()
+
+ADD_EXECUTABLE(uhttpd main.c listen.c client.c utils.c file.c)
+TARGET_LINK_LIBRARIES(uhttpd ubox ubus)
--- /dev/null
+/*
+ * uhttpd - Tiny single-threaded httpd
+ *
+ * Copyright (C) 2010-2012 Jo-Philipp Wich <xm@subsignal.org>
+ * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.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 <libubox/blobmsg.h>
+#include <ctype.h>
+
+#include "uhttpd.h"
+
+static LIST_HEAD(clients);
+
+int n_clients = 0;
+struct config conf = {};
+
+static const char *http_versions[] = {
+ [UH_HTTP_VER_0_9] = "HTTP/0.9",
+ [UH_HTTP_VER_1_0] = "HTTP/1.0",
+ [UH_HTTP_VER_1_1] = "HTTP/1.1",
+};
+
+void uh_http_header(struct client *cl, int code, const char *summary)
+{
+ const char *enc = "Transfer-Encoding: chunked\r\n";
+ const char *conn;
+
+ if (!uh_use_chunked(cl))
+ enc = "";
+
+ if (cl->request.version != UH_HTTP_VER_1_1)
+ conn = "Connection: close";
+ else
+ conn = "Connection: keep-alive";
+
+ ustream_printf(cl->us, "%s %03i %s\r\n%s\r\n%s",
+ http_versions[cl->request.version],
+ code, summary, conn, enc);
+}
+
+static void uh_client_error_header(struct client *cl, int code, const char *summary)
+{
+ uh_http_header(cl, code, summary);
+ ustream_printf(cl->us, "Content-Type: text/plain\r\n\r\n");
+}
+
+static void uh_connection_close(struct client *cl)
+{
+ cl->state = CLIENT_STATE_DONE;
+ cl->us->eof = true;
+ ustream_state_change(cl->us);
+}
+
+static void uh_dispatch_done(struct client *cl)
+{
+ if (cl->dispatch_free)
+ cl->dispatch_free(cl);
+ cl->dispatch_free = NULL;
+}
+
+void uh_request_done(struct client *cl)
+{
+ uh_chunk_eof(cl);
+ uh_dispatch_done(cl);
+ cl->us->notify_write = NULL;
+ memset(&cl->data, 0, sizeof(cl->data));
+
+ if (cl->request.version != UH_HTTP_VER_1_1 || !conf.http_keepalive) {
+ uh_connection_close(cl);
+ return;
+ }
+
+ cl->state = CLIENT_STATE_INIT;
+ uloop_timeout_set(&cl->timeout, conf.http_keepalive * 1000);
+}
+
+void __printf(4, 5)
+uh_client_error(struct client *cl, int code, const char *summary, const char *fmt, ...)
+{
+ va_list arg;
+
+ uh_client_error_header(cl, code, summary);
+
+ va_start(arg, fmt);
+ uh_chunk_vprintf(cl, fmt, arg);
+ va_end(arg);
+
+ uh_request_done(cl);
+}
+
+static void uh_header_error(struct client *cl, int code, const char *summary)
+{
+ uh_client_error(cl, code, summary, "%s", summary);
+ uh_connection_close(cl);
+}
+
+static void client_timeout(struct uloop_timeout *timeout)
+{
+ struct client *cl = container_of(timeout, struct client, timeout);
+
+ cl->state = CLIENT_STATE_CLOSE;
+ uh_connection_close(cl);
+}
+
+static int client_parse_request(struct client *cl, char *data)
+{
+ struct http_request *req = &cl->request;
+ char *type, *path, *version;
+ int i;
+
+ type = strtok(data, " ");
+ path = strtok(NULL, " ");
+ version = strtok(NULL, " ");
+ if (!type || !path || !version)
+ return CLIENT_STATE_DONE;
+
+ req->url = path;
+ if (!strcmp(type, "GET"))
+ req->method = UH_HTTP_MSG_GET;
+ else if (!strcmp(type, "POST"))
+ req->method = UH_HTTP_MSG_POST;
+ else if (!strcmp(type, "HEAD"))
+ req->method = UH_HTTP_MSG_HEAD;
+ else
+ return CLIENT_STATE_DONE;
+
+ cl->request.version = -1;
+ i = array_size(http_versions);
+ while (i--) {
+ if (!strcmp(version, http_versions[i])) {
+ cl->request.version = i;
+ break;
+ }
+ }
+ if (cl->request.version < 0)
+ return CLIENT_STATE_DONE;
+
+ return CLIENT_STATE_HEADER;
+}
+
+static bool client_init_cb(struct client *cl, char *buf, int len)
+{
+ char *newline;
+
+ newline = strstr(buf, "\r\n");
+ if (!newline)
+ return false;
+
+ *newline = 0;
+ blob_buf_init(&cl->hdr, 0);
+ blobmsg_add_string(&cl->hdr, "REQUEST", buf);
+ ustream_consume(cl->us, newline + 2 - buf);
+ cl->state = client_parse_request(cl, (char *) blobmsg_data(blob_data(cl->hdr.head)));
+ if (cl->state == CLIENT_STATE_DONE)
+ uh_header_error(cl, 400, "Bad Request");
+
+ return true;
+}
+
+static void client_header_complete(struct client *cl)
+{
+ uh_handle_file_request(cl);
+}
+
+static int client_parse_header(struct client *cl, char *data)
+{
+ char *name;
+ char *val;
+
+ if (!*data) {
+ uloop_timeout_cancel(&cl->timeout);
+ client_header_complete(cl);
+ return CLIENT_STATE_DATA;
+ }
+
+ val = strchr(data, ':');
+ if (!val)
+ return CLIENT_STATE_DONE;
+
+ *val = 0;
+ val++;
+
+ while (isspace(*val))
+ val++;
+
+ for (name = data; *name; name++)
+ if (isupper(*name))
+ *name = tolower(*name);
+
+ blobmsg_add_string(&cl->hdr, data, val);
+
+ return CLIENT_STATE_HEADER;
+}
+
+static bool client_data_cb(struct client *cl, char *buf, int len)
+{
+ return false;
+}
+
+static bool client_header_cb(struct client *cl, char *buf, int len)
+{
+ char *newline;
+ int line_len;
+
+ newline = strstr(buf, "\r\n");
+ if (!newline)
+ return false;
+
+ *newline = 0;
+ cl->state = client_parse_header(cl, buf);
+ line_len = newline + 2 - buf;
+ ustream_consume(cl->us, line_len);
+ if (cl->state == CLIENT_STATE_DATA)
+ client_data_cb(cl, newline + 2, len - line_len);
+
+ return true;
+}
+
+typedef bool (*read_cb_t)(struct client *cl, char *buf, int len);
+static read_cb_t read_cbs[] = {
+ [CLIENT_STATE_INIT] = client_init_cb,
+ [CLIENT_STATE_HEADER] = client_header_cb,
+ [CLIENT_STATE_DATA] = client_data_cb,
+};
+
+static void client_read_cb(struct client *cl)
+{
+ struct ustream *us = cl->us;
+ char *str;
+ int len;
+
+ do {
+ str = ustream_get_read_buf(us, &len);
+ if (!str)
+ break;
+
+ if (cl->state >= array_size(read_cbs) || !read_cbs[cl->state])
+ break;
+
+ if (!read_cbs[cl->state](cl, str, len)) {
+ if (len == us->r.buffer_len)
+ uh_header_error(cl, 413, "Request Entity Too Large");
+ break;
+ }
+ } while(1);
+}
+
+static void client_close(struct client *cl)
+{
+ uh_dispatch_done(cl);
+ uloop_timeout_cancel(&cl->timeout);
+ ustream_free(&cl->sfd.stream);
+ close(cl->sfd.fd.fd);
+ list_del(&cl->list);
+ free(cl);
+
+ uh_unblock_listeners();
+}
+
+static void client_ustream_read_cb(struct ustream *s, int bytes)
+{
+ struct client *cl = container_of(s, struct client, sfd);
+
+ client_read_cb(cl);
+}
+
+static void client_ustream_write_cb(struct ustream *s, int bytes)
+{
+ struct client *cl = container_of(s, struct client, sfd);
+
+ if (cl->dispatch_write_cb)
+ cl->dispatch_write_cb(cl);
+}
+
+static void client_notify_state(struct ustream *s)
+{
+ struct client *cl = container_of(s, struct client, sfd);
+
+ if (cl->state == CLIENT_STATE_CLOSE ||
+ (s->eof && !s->w.data_bytes) || s->write_error)
+ return client_close(cl);
+}
+
+void uh_accept_client(int fd)
+{
+ static struct client *next_client;
+ struct client *cl;
+ unsigned int sl;
+ int sfd;
+ static int client_id = 0;
+
+ if (!next_client)
+ next_client = calloc(1, sizeof(*next_client));
+
+ cl = next_client;
+
+ sl = sizeof(cl->peeraddr);
+ sfd = accept(fd, (struct sockaddr *) &cl->peeraddr, &sl);
+ if (sfd < 0)
+ return;
+
+ sl = sizeof(cl->servaddr);
+ getsockname(fd, (struct sockaddr *) &cl->servaddr, &sl);
+ cl->us = &cl->sfd.stream;
+ cl->us->string_data = true;
+ cl->us->notify_read = client_ustream_read_cb;
+ cl->us->notify_write = client_ustream_write_cb;
+ cl->us->notify_state = client_notify_state;
+ ustream_fd_init(&cl->sfd, sfd);
+
+ cl->timeout.cb = client_timeout;
+ uloop_timeout_set(&cl->timeout, conf.network_timeout * 1000);
+
+ list_add_tail(&cl->list, &clients);
+
+ next_client = NULL;
+ n_clients++;
+ cl->id = client_id++;
+}
--- /dev/null
+/*
+ * uhttpd - Tiny single-threaded httpd
+ *
+ * Copyright (C) 2010-2012 Jo-Philipp Wich <xm@subsignal.org>
+ * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.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 <sys/types.h>
+#include <sys/dir.h>
+
+#include <libubox/blobmsg.h>
+
+#include "uhttpd.h"
+#include "uhttpd-mimetypes.h"
+
+static LIST_HEAD(index_files);
+
+struct index_file {
+ struct list_head list;
+ const char *name;
+};
+
+struct path_info {
+ char *root;
+ char *phys;
+ char *name;
+ char *info;
+ char *query;
+ int redirected;
+ struct stat stat;
+};
+
+enum file_hdr {
+ HDR_IF_MODIFIED_SINCE,
+ HDR_IF_UNMODIFIED_SINCE,
+ HDR_IF_MATCH,
+ HDR_IF_NONE_MATCH,
+ HDR_IF_RANGE,
+ __HDR_MAX
+};
+
+void uh_index_add(const char *filename)
+{
+ struct index_file *idx;
+
+ idx = calloc(1, sizeof(*idx));
+ idx->name = filename;
+ list_add_tail(&idx->list, &index_files);
+}
+
+static char * canonpath(const char *path, char *path_resolved)
+{
+ char path_copy[PATH_MAX];
+ char *path_cpy = path_copy;
+ char *path_res = path_resolved;
+ struct stat s;
+
+ /* relative -> absolute */
+ if (*path != '/') {
+ getcwd(path_copy, PATH_MAX);
+ strncat(path_copy, "/", PATH_MAX - strlen(path_copy));
+ strncat(path_copy, path, PATH_MAX - strlen(path_copy));
+ } else {
+ strncpy(path_copy, path, PATH_MAX);
+ }
+
+ /* normalize */
+ while ((*path_cpy != '\0') && (path_cpy < (path_copy + PATH_MAX - 2))) {
+ if (*path_cpy != '/')
+ goto next;
+
+ /* skip repeating / */
+ if (path_cpy[1] == '/') {
+ path_cpy++;
+ continue;
+ }
+
+ /* /./ or /../ */
+ if (path_cpy[1] == '.') {
+ /* skip /./ */
+ if ((path_cpy[2] == '/') || (path_cpy[2] == '\0')) {
+ path_cpy += 2;
+ continue;
+ }
+
+ /* collapse /x/../ */
+ if ((path_cpy[2] == '.') &&
+ ((path_cpy[3] == '/') || (path_cpy[3] == '\0'))) {
+ while ((path_res > path_resolved) && (*--path_res != '/'));
+
+ path_cpy += 3;
+ continue;
+ }
+ }
+
+next:
+ *path_res++ = *path_cpy++;
+ }
+
+ /* remove trailing slash if not root / */
+ if ((path_res > (path_resolved+1)) && (path_res[-1] == '/'))
+ path_res--;
+ else if (path_res == path_resolved)
+ *path_res++ = '/';
+
+ *path_res = '\0';
+
+ /* test access */
+ if (!stat(path_resolved, &s) && (s.st_mode & S_IROTH))
+ return path_resolved;
+
+ return NULL;
+}
+
+/* Returns NULL on error.
+** NB: improperly encoded URL should give client 400 [Bad Syntax]; returning
+** NULL here causes 404 [Not Found], but that's not too unreasonable. */
+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 = conf.docroot;
+ char *pathptr = NULL;
+
+ int slash = 0;
+ int no_sym = conf.no_symlinks;
+ int i = 0;
+ struct stat s;
+ struct index_file *idx;
+
+ /* back out early if url is undefined */
+ if (url == NULL)
+ return NULL;
+
+ 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) {
+ if (uh_urldecode(&buffer[strlen(docroot)],
+ sizeof(buffer) - strlen(docroot) - 1,
+ url, pathptr - url ) < 0)
+ return NULL; /* bad URL */
+ }
+ }
+
+ /* no query string, decode all of url */
+ else if (uh_urldecode(&buffer[strlen(docroot)],
+ sizeof(buffer) - strlen(docroot) - 1,
+ url, strlen(url) ) < 0)
+ return NULL; /* bad URL */
+
+ /* create canon path */
+ for (i = strlen(buffer), slash = (buffer[max(0, i-1)] == '/'); 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 (no_sym ? realpath(path_info, path_phys)
+ : canonpath(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)];
+
+ /* if requested url resolves to a directory and a trailing slash
+ is missing in the request url, redirect the client to the same
+ url with trailing slash appended */
+ if (!slash) {
+ uh_http_header(cl, 302, "Found");
+ ustream_printf(cl->us, "Location: %s%s%s\r\n\r\n",
+ &path_phys[strlen(docroot)],
+ p.query ? "?" : "",
+ p.query ? p.query : "");
+ uh_request_done(cl);
+ p.redirected = 1;
+ } else {
+ list_for_each_entry(idx, &index_files, list) {
+ strncat(buffer, idx->name, 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;
+}
+
+#ifdef __APPLE__
+time_t timegm (struct tm *tm);
+#endif
+
+static const char * uh_file_mime_lookup(const char *path)
+{
+ struct mimetype *m = &uh_mime_types[0];
+ const char *e;
+
+ while (m->extn) {
+ e = &path[strlen(path)-1];
+
+ while (e >= path) {
+ if ((*e == '.' || *e == '/') && !strcasecmp(&e[1], m->extn))
+ return m->mime;
+
+ e--;
+ }
+
+ m++;
+ }
+
+ return "application/octet-stream";
+}
+
+static const char * uh_file_mktag(struct stat *s)
+{
+ 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);
+
+ return tag;
+}
+
+static time_t uh_file_date2unix(const char *date)
+{
+ struct tm t;
+
+ memset(&t, 0, sizeof(t));
+
+ if (strptime(date, "%a, %d %b %Y %H:%M:%S %Z", &t) != NULL)
+ return timegm(&t);
+
+ return 0;
+}
+
+static char * uh_file_unix2date(time_t ts)
+{
+ static char str[128];
+ struct tm *t = gmtime(&ts);
+
+ strftime(str, sizeof(str), "%a, %d %b %Y %H:%M:%S GMT", t);
+
+ return str;
+}
+
+static char *uh_file_header(struct client *cl, int idx)
+{
+ if (!cl->data.file.hdr[idx])
+ return NULL;
+
+ return (char *) blobmsg_data(cl->data.file.hdr[idx]);
+}
+
+static void uh_file_response_ok_hdrs(struct client *cl, struct stat *s)
+{
+ if (s) {
+ ustream_printf(cl->us, "ETag: %s\r\n", uh_file_mktag(s));
+ ustream_printf(cl->us, "Last-Modified: %s\r\n",
+ uh_file_unix2date(s->st_mtime));
+ }
+ ustream_printf(cl->us, "Date: %s\r\n", uh_file_unix2date(time(NULL)));
+}
+
+static void uh_file_response_200(struct client *cl, struct stat *s)
+{
+ uh_http_header(cl, 200, "OK");
+ return uh_file_response_ok_hdrs(cl, s);
+}
+
+static void uh_file_response_304(struct client *cl, struct stat *s)
+{
+ uh_http_header(cl, 304, "Not Modified");
+
+ return uh_file_response_ok_hdrs(cl, s);
+}
+
+static void uh_file_response_412(struct client *cl)
+{
+ uh_http_header(cl, 412, "Precondition Failed");
+}
+
+static bool uh_file_if_match(struct client *cl, struct stat *s)
+{
+ const char *tag = uh_file_mktag(s);
+ char *hdr = uh_file_header(cl, HDR_IF_MATCH);
+ char *p;
+ int i;
+
+ if (!hdr)
+ return true;
+
+ p = &hdr[0];
+ for (i = 0; i < strlen(hdr); i++)
+ {
+ if ((hdr[i] == ' ') || (hdr[i] == ',')) {
+ hdr[i++] = 0;
+ p = &hdr[i];
+ } else if (!strcmp(p, "*") || !strcmp(p, tag)) {
+ return true;
+ }
+ }
+
+ uh_file_response_412(cl);
+ return false;
+}
+
+static int uh_file_if_modified_since(struct client *cl, struct stat *s)
+{
+ char *hdr = uh_file_header(cl, HDR_IF_MODIFIED_SINCE);
+
+ if (!hdr)
+ return true;
+
+ if (uh_file_date2unix(hdr) >= s->st_mtime) {
+ uh_file_response_304(cl, s);
+ return false;
+ }
+
+ return true;
+}
+
+static int uh_file_if_none_match(struct client *cl, struct stat *s)
+{
+ const char *tag = uh_file_mktag(s);
+ char *hdr = uh_file_header(cl, HDR_IF_NONE_MATCH);
+ char *p;
+ int i;
+
+ if (!hdr)
+ return true;
+
+ p = &hdr[0];
+ for (i = 0; i < strlen(hdr); i++) {
+ if ((hdr[i] == ' ') || (hdr[i] == ',')) {
+ hdr[i++] = 0;
+ p = &hdr[i];
+ } else if (!strcmp(p, "*") || !strcmp(p, tag)) {
+ if ((cl->request.method == UH_HTTP_MSG_GET) ||
+ (cl->request.method == UH_HTTP_MSG_HEAD))
+ uh_file_response_304(cl, s);
+ else
+ uh_file_response_412(cl);
+
+ return false;
+ }
+ }
+
+ return true;
+}
+
+static int uh_file_if_range(struct client *cl, struct stat *s)
+{
+ char *hdr = uh_file_header(cl, HDR_IF_RANGE);
+
+ if (hdr) {
+ uh_file_response_412(cl);
+ return false;
+ }
+
+ return true;
+}
+
+static int uh_file_if_unmodified_since(struct client *cl, struct stat *s)
+{
+ char *hdr = uh_file_header(cl, HDR_IF_UNMODIFIED_SINCE);
+
+ if (hdr && uh_file_date2unix(hdr) <= s->st_mtime) {
+ uh_file_response_412(cl);
+ return false;
+ }
+
+ return true;
+}
+
+
+static int uh_file_scandir_filter_dir(const struct dirent *e)
+{
+ return strcmp(e->d_name, ".") ? 1 : 0;
+}
+
+static void uh_file_dirlist(struct client *cl, struct path_info *pi)
+{
+ int i;
+ int count = 0;
+ char filename[PATH_MAX];
+ char *pathptr;
+ struct dirent **files = NULL;
+ struct stat s;
+
+ uh_file_response_200(cl, NULL);
+ ustream_printf(cl->us, "Content-Type: text/html\r\n\r\n");
+
+ uh_chunk_printf(cl,
+ "<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)
+ {
+ memset(filename, 0, sizeof(filename));
+ memcpy(filename, pi->phys, sizeof(filename));
+ pathptr = &filename[strlen(filename)];
+
+ /* list subdirs */
+ 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) && (s.st_mode & S_IXOTH))
+ uh_chunk_printf(cl,
+ "<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++) {
+ strncat(filename, files[i]->d_name,
+ sizeof(filename) - strlen(files[i]->d_name));
+
+ if (!stat(filename, &s) &&
+ !(s.st_mode & S_IFDIR) && (s.st_mode & S_IROTH))
+ uh_chunk_printf(cl,
+ "<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;
+ }
+ }
+
+ uh_chunk_printf(cl, "</ol><hr /></body></html>");
+ uh_request_done(cl);
+
+ if (files)
+ {
+ for (i = 0; i < count; i++)
+ free(files[i]);
+
+ free(files);
+ }
+}
+
+static void file_write_cb(struct client *cl)
+{
+ char buf[512];
+ int fd = cl->data.file.fd;
+ int r;
+
+ while (cl->us->w.data_bytes < 256) {
+ r = read(fd, buf, sizeof(buf));
+ if (r < 0) {
+ if (errno == EINTR)
+ continue;
+ }
+
+ if (!r) {
+ uh_request_done(cl);
+ return;
+ }
+
+ uh_chunk_write(cl, buf, r);
+ }
+}
+
+static void uh_file_free(struct client *cl)
+{
+ close(cl->data.file.fd);
+}
+
+static void uh_file_data(struct client *cl, struct path_info *pi, int fd)
+{
+ /* test preconditions */
+ if (!uh_file_if_modified_since(cl, &pi->stat) ||
+ !uh_file_if_match(cl, &pi->stat) ||
+ !uh_file_if_range(cl, &pi->stat) ||
+ !uh_file_if_unmodified_since(cl, &pi->stat) ||
+ !uh_file_if_none_match(cl, &pi->stat)) {
+ uh_request_done(cl);
+ close(fd);
+ return;
+ }
+
+ /* write status */
+ uh_file_response_200(cl, &pi->stat);
+
+ ustream_printf(cl->us, "Content-Type: %s\r\n",
+ uh_file_mime_lookup(pi->name));
+
+ ustream_printf(cl->us, "Content-Length: %i\r\n\r\n",
+ pi->stat.st_size);
+
+
+ /* send body */
+ if (cl->request.method == UH_HTTP_MSG_HEAD) {
+ uh_request_done(cl);
+ close(fd);
+ return;
+ }
+
+ cl->data.file.fd = fd;
+ cl->dispatch_write_cb = file_write_cb;
+ cl->dispatch_free = uh_file_free;
+ file_write_cb(cl);
+}
+
+static void uh_file_request(struct client *cl, struct path_info *pi)
+{
+ static const struct blobmsg_policy hdr_policy[__HDR_MAX] = {
+ [HDR_IF_MODIFIED_SINCE] = { "if-modified-since", BLOBMSG_TYPE_STRING },
+ [HDR_IF_UNMODIFIED_SINCE] = { "if-unmodified-since", BLOBMSG_TYPE_STRING },
+ [HDR_IF_MATCH] = { "if-match", BLOBMSG_TYPE_STRING },
+ [HDR_IF_NONE_MATCH] = { "if-none-match", BLOBMSG_TYPE_STRING },
+ [HDR_IF_RANGE] = { "if-range", BLOBMSG_TYPE_STRING },
+ };
+ struct blob_attr *tb[__HDR_MAX];
+ int fd;
+
+ blobmsg_parse(hdr_policy, __HDR_MAX, tb, blob_data(cl->hdr.head), blob_len(cl->hdr.head));
+
+ cl->data.file.hdr = tb;
+ if ((pi->stat.st_mode & S_IFREG) && ((fd = open(pi->phys, O_RDONLY)) > 0))
+ uh_file_data(cl, pi, fd);
+ else if ((pi->stat.st_mode & S_IFDIR) && !conf.no_dirlists)
+ uh_file_dirlist(cl, pi);
+ else
+ uh_client_error(cl, 403, "Forbidden",
+ "Access to this resource is forbidden");
+ cl->data.file.hdr = NULL;
+}
+
+void uh_handle_file_request(struct client *cl)
+{
+ struct path_info *pi;
+
+ pi = uh_path_lookup(cl, cl->request.url);
+ if (!pi) {
+ uh_request_done(cl);
+ return;
+ }
+
+ if (pi->redirected)
+ return;
+
+ uh_file_request(cl, pi);
+}
--- /dev/null
+/*
+ * uhttpd - Tiny single-threaded httpd
+ *
+ * Copyright (C) 2010-2012 Jo-Philipp Wich <xm@subsignal.org>
+ * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.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 <sys/types.h>
+#include <sys/socket.h>
+
+#include <netdb.h>
+
+#include "uhttpd.h"
+
+struct listener {
+ struct list_head list;
+ struct uloop_fd fd;
+ int socket;
+ int n_clients;
+ struct sockaddr_in6 addr;
+ bool tls;
+ bool blocked;
+};
+
+static LIST_HEAD(listeners);
+static int n_blocked;
+
+static void uh_block_listener(struct listener *l)
+{
+ uloop_fd_delete(&l->fd);
+ n_blocked++;
+ l->blocked = true;
+}
+
+void uh_unblock_listeners(void)
+{
+ struct listener *l;
+
+ if (!n_blocked && conf.max_requests &&
+ n_clients >= conf.max_requests)
+ return;
+
+ list_for_each_entry(l, &listeners, list) {
+ if (!l->blocked)
+ continue;
+
+ n_blocked--;
+ l->blocked = false;
+ uloop_fd_add(&l->fd, ULOOP_READ);
+ }
+}
+
+static void listener_cb(struct uloop_fd *fd, unsigned int events)
+{
+ struct listener *l = container_of(fd, struct listener, fd);
+
+ uh_accept_client(fd->fd);
+
+ if (conf.max_requests && n_clients >= conf.max_requests)
+ uh_block_listener(l);
+}
+
+void uh_setup_listeners(void)
+{
+ struct listener *l;
+
+ list_for_each_entry(l, &listeners, list) {
+ l->fd.cb = listener_cb;
+ uloop_fd_add(&l->fd, ULOOP_READ);
+ }
+}
+
+int uh_socket_bind(const char *host, const char *port, bool tls)
+{
+ int sock = -1;
+ int yes = 1;
+ int status;
+ int bound = 0;
+ struct listener *l = NULL;
+ struct addrinfo *addrs = NULL, *p = NULL;
+ static struct addrinfo hints = {
+ .ai_family = AF_UNSPEC,
+ .ai_socktype = SOCK_STREAM,
+ .ai_flags = AI_PASSIVE,
+ };
+
+ if ((status = getaddrinfo(host, port, &hints, &addrs)) != 0) {
+ fprintf(stderr, "getaddrinfo(): %s\n", gai_strerror(status));
+ return -1;
+ }
+
+ /* try to bind a new socket to each found address */
+ for (p = addrs; p; p = p->ai_next) {
+ /* get the socket */
+ sock = socket(p->ai_family, p->ai_socktype, p->ai_protocol);
+ if (sock < 0) {
+ perror("socket()");
+ goto error;
+ }
+
+ /* "address already in use" */
+ if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes))) {
+ perror("setsockopt()");
+ goto error;
+ }
+
+ /* TCP keep-alive */
+ if (conf.tcp_keepalive > 0) {
+ int ret = 0;
+#ifdef linux
+ int tcp_ka_idl, tcp_ka_int, tcp_ka_cnt;
+
+ tcp_ka_idl = 1;
+ tcp_ka_cnt = 3;
+ tcp_ka_int = conf->tcp_keepalive;
+ ret = setsockopt(sock, SOL_TCP, TCP_KEEPIDLE, &tcp_ka_idl, sizeof(tcp_ka_idl)) ||
+ setsockopt(sock, SOL_TCP, TCP_KEEPINTVL, &tcp_ka_int, sizeof(tcp_ka_int)) ||
+ setsockopt(sock, SOL_TCP, TCP_KEEPCNT, &tcp_ka_cnt, sizeof(tcp_ka_cnt));
+#endif
+
+ if (ret || setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, &yes, sizeof(yes)))
+ fprintf(stderr, "Notice: Unable to enable TCP keep-alive: %s\n",
+ strerror(errno));
+ }
+
+ /* required to get parallel v4 + v6 working */
+ if (p->ai_family == AF_INET6 &&
+ setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, &yes, sizeof(yes)) < 0) {
+ perror("setsockopt()");
+ goto error;
+ }
+
+ /* bind */
+ if (bind(sock, p->ai_addr, p->ai_addrlen) < 0) {
+ perror("bind()");
+ goto error;
+ }
+
+ /* listen */
+ if (listen(sock, UH_LIMIT_CLIENTS) < 0) {
+ perror("listen()");
+ goto error;
+ }
+
+ fd_cloexec(sock);
+
+ l = calloc(1, sizeof(*l));
+ if (!l)
+ goto error;
+
+ l->fd.fd = sock;
+ l->tls = tls;
+ list_add_tail(&l->list, &listeners);
+
+ continue;
+
+error:
+ if (sock > 0)
+ close(sock);
+ }
+
+ freeaddrinfo(addrs);
+
+ return bound;
+}
--- /dev/null
+/*
+ * uhttpd - Tiny single-threaded httpd
+ *
+ * Copyright (C) 2010-2012 Jo-Philipp Wich <xm@subsignal.org>
+ * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.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 <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+#include <getopt.h>
+#include <errno.h>
+#include <netdb.h>
+#include <signal.h>
+
+#include <libubox/usock.h>
+
+#include "uhttpd.h"
+
+
+static int run_server(void)
+{
+ uloop_init();
+ uh_setup_listeners();
+ uloop_run();
+
+ return 0;
+}
+
+static void add_listener_arg(char *arg, bool tls)
+{
+ char *host = NULL;
+ char *port = arg;
+ char *s;
+
+ s = strrchr(arg, ':');
+ if (s) {
+ host = arg;
+ port = s + 1;
+ *s = 0;
+ }
+ uh_socket_bind(host, port, tls);
+}
+
+static int usage(const char *name)
+{
+ fprintf(stderr, "Usage: %s -p <port>\n", name);
+ return 1;
+}
+
+static void init_defaults(void)
+{
+ conf.network_timeout = 30;
+ conf.http_keepalive = 0; /* fixme */
+
+ uh_index_add("index.html");
+ uh_index_add("index.htm");
+ uh_index_add("default.html");
+ uh_index_add("default.htm");
+}
+
+int main(int argc, char **argv)
+{
+ int ch;
+
+ init_defaults();
+ signal(SIGPIPE, SIG_IGN);
+
+ while ((ch = getopt(argc, argv, "sp:h:")) != -1) {
+ bool tls = false;
+ switch(ch) {
+ case 's':
+ tls = true;
+ case 'p':
+ add_listener_arg(optarg, tls);
+ break;
+
+ case 'h':
+ /* docroot */
+ if (!realpath(optarg, conf.docroot)) {
+ fprintf(stderr, "Error: Invalid directory %s: %s\n",
+ optarg, strerror(errno));
+ exit(1);
+ }
+ break;
+ default:
+ return usage(argv[0]);
+ }
+ }
+
+ return run_server();
+}
--- /dev/null
+/*
+ * uhttpd - Tiny single-threaded httpd - MIME type definitions
+ *
+ * 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.
+ */
+
+#ifndef _UHTTPD_MIMETYPES_
+
+struct mimetype {
+ const char *extn;
+ const char *mime;
+};
+
+static struct mimetype uh_mime_types[] = {
+
+ { "txt", "text/plain" },
+ { "log", "text/plain" },
+ { "js", "text/javascript" },
+ { "css", "text/css" },
+ { "htm", "text/html" },
+ { "html", "text/html" },
+ { "diff", "text/x-patch" },
+ { "patch", "text/x-patch" },
+ { "c", "text/x-csrc" },
+ { "h", "text/x-chdr" },
+ { "o", "text/x-object" },
+ { "ko", "text/x-object" },
+
+ { "bmp", "image/bmp" },
+ { "gif", "image/gif" },
+ { "png", "image/png" },
+ { "jpg", "image/jpeg" },
+ { "jpeg", "image/jpeg" },
+ { "svg", "image/svg+xml" },
+
+ { "zip", "application/zip" },
+ { "pdf", "application/pdf" },
+ { "xml", "application/xml" },
+ { "xsl", "application/xml" },
+ { "doc", "application/msword" },
+ { "ppt", "application/vnd.ms-powerpoint" },
+ { "xls", "application/vnd.ms-excel" },
+ { "odt", "application/vnd.oasis.opendocument.text" },
+ { "odp", "application/vnd.oasis.opendocument.presentation" },
+ { "pl", "application/x-perl" },
+ { "sh", "application/x-shellscript" },
+ { "php", "application/x-php" },
+ { "deb", "application/x-deb" },
+ { "iso", "application/x-cd-image" },
+ { "tar.gz", "application/x-compressed-tar" },
+ { "tgz", "application/x-compressed-tar" },
+ { "gz", "application/x-gzip" },
+ { "tar.bz2", "application/x-bzip-compressed-tar" },
+ { "tbz", "application/x-bzip-compressed-tar" },
+ { "bz2", "application/x-bzip" },
+ { "tar", "application/x-tar" },
+ { "rar", "application/x-rar-compressed" },
+
+ { "mp3", "audio/mpeg" },
+ { "ogg", "audio/x-vorbis+ogg" },
+ { "wav", "audio/x-wav" },
+
+ { "mpg", "video/mpeg" },
+ { "mpeg", "video/mpeg" },
+ { "avi", "video/x-msvideo" },
+
+ { "README", "text/plain" },
+ { "log", "text/plain" },
+ { "cfg", "text/plain" },
+ { "conf", "text/plain" },
+
+ { "pac", "application/x-ns-proxy-autoconfig" },
+ { "wpad.dat", "application/x-ns-proxy-autoconfig" },
+
+ { NULL, NULL }
+};
+
+#endif
+
--- /dev/null
+/*
+ * uhttpd - Tiny single-threaded httpd - Main header
+ *
+ * Copyright (C) 2010-2012 Jo-Philipp Wich <xm@subsignal.org>
+ * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.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.
+ */
+
+#ifndef __UHTTPD_H
+#define __UHTTPD_H
+
+#include <netinet/in.h>
+#include <limits.h>
+#include <dirent.h>
+
+#include <libubox/list.h>
+#include <libubox/uloop.h>
+#include <libubox/ustream.h>
+#include <libubox/blob.h>
+
+#include "utils.h"
+
+#define UH_LIMIT_CLIENTS 64
+#define UH_LIMIT_HEADERS 64
+#define UH_LIMIT_MSGHEAD 4096
+
+struct config {
+ char docroot[PATH_MAX];
+ char *realm;
+ char *file;
+ char *error_handler;
+ int no_symlinks;
+ int no_dirlists;
+ int network_timeout;
+ int rfc1918_filter;
+ int tcp_keepalive;
+ int max_requests;
+ int http_keepalive;
+};
+
+enum http_method {
+ UH_HTTP_MSG_GET,
+ UH_HTTP_MSG_POST,
+ UH_HTTP_MSG_HEAD,
+};
+
+enum http_version {
+ UH_HTTP_VER_0_9,
+ UH_HTTP_VER_1_0,
+ UH_HTTP_VER_1_1,
+};
+
+struct http_request {
+ enum http_method method;
+ enum http_version version;
+ int redirect_status;
+ char *url;
+ struct auth_realm *realm;
+};
+
+struct http_response {
+ int statuscode;
+ char *statusmsg;
+ char *headers[UH_LIMIT_HEADERS];
+};
+
+enum client_state {
+ CLIENT_STATE_INIT,
+ CLIENT_STATE_HEADER,
+ CLIENT_STATE_DATA,
+ CLIENT_STATE_DONE,
+ CLIENT_STATE_CLOSE,
+};
+
+struct client {
+ struct list_head list;
+ int id;
+
+ struct ustream *us;
+ struct ustream_fd sfd;
+#ifdef HAVE_TLS
+ struct ustream_ssl stream_ssl;
+#endif
+ struct uloop_fd rpipe;
+ struct uloop_fd wpipe;
+ struct uloop_process proc;
+ struct uloop_timeout timeout;
+ bool (*cb)(struct client *);
+ void *priv;
+
+ enum client_state state;
+
+ struct http_request request;
+ struct http_response response;
+ struct sockaddr_in6 servaddr;
+ struct sockaddr_in6 peeraddr;
+
+ struct blob_buf hdr;
+
+ void (*dispatch_write_cb)(struct client *cl);
+ void (*dispatch_free)(struct client *cl);
+
+ union {
+ struct {
+ struct blob_attr **hdr;
+ int fd;
+ } file;
+ } data;
+};
+
+extern int n_clients;
+extern struct config conf;
+
+void uh_index_add(const char *filename);
+
+void uh_accept_client(int fd);
+
+void uh_unblock_listeners(void);
+void uh_setup_listeners(void);
+int uh_socket_bind(const char *host, const char *port, bool tls);
+
+bool uh_use_chunked(struct client *cl);
+void uh_chunk_write(struct client *cl, const void *data, int len);
+void uh_chunk_vprintf(struct client *cl, const char *format, va_list arg);
+
+void __printf(2, 3)
+uh_chunk_printf(struct client *cl, const char *format, ...);
+
+void uh_chunk_eof(struct client *cl);
+void uh_request_done(struct client *cl);
+
+void uh_http_header(struct client *cl, int code, const char *summary);
+void __printf(4, 5)
+uh_client_error(struct client *cl, int code, const char *summary, const char *fmt, ...);
+
+void uh_handle_file_request(struct client *cl);
+
+#endif
--- /dev/null
+/*
+ * uhttpd - Tiny single-threaded httpd
+ *
+ * Copyright (C) 2010-2012 Jo-Philipp Wich <xm@subsignal.org>
+ * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.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 <ctype.h>
+#include "uhttpd.h"
+
+bool uh_use_chunked(struct client *cl)
+{
+ if (cl->request.version != UH_HTTP_VER_1_1)
+ return false;
+
+ if (cl->request.method == UH_HTTP_MSG_HEAD)
+ return false;
+
+ return true;
+}
+
+void uh_chunk_write(struct client *cl, const void *data, int len)
+{
+ bool chunked = uh_use_chunked(cl);
+
+ uloop_timeout_set(&cl->timeout, conf.network_timeout * 1000);
+ if (chunked)
+ ustream_printf(cl->us, "%X\r\n", len);
+ ustream_write(cl->us, data, len, true);
+ if (chunked)
+ ustream_printf(cl->us, "\r\n", len);
+}
+
+void uh_chunk_vprintf(struct client *cl, const char *format, va_list arg)
+{
+ char buf[256];
+ va_list arg2;
+ int len;
+
+ uloop_timeout_set(&cl->timeout, conf.network_timeout * 1000);
+ if (!uh_use_chunked(cl)) {
+ ustream_vprintf(cl->us, format, arg);
+ return;
+ }
+
+ va_copy(arg2, arg);
+ len = vsnprintf(buf, sizeof(buf), format, arg2);
+ va_end(arg2);
+
+ ustream_printf(cl->us, "%X\r\n", len);
+ if (len < sizeof(buf))
+ ustream_write(cl->us, buf, len, true);
+ else
+ ustream_vprintf(cl->us, format, arg);
+ ustream_printf(cl->us, "\r\n", len);
+}
+
+void uh_chunk_printf(struct client *cl, const char *format, ...)
+{
+ va_list arg;
+
+ va_start(arg, format);
+ uh_chunk_vprintf(cl, format, arg);
+ va_end(arg);
+}
+
+void uh_chunk_eof(struct client *cl)
+{
+ if (!uh_use_chunked(cl))
+ return;
+
+ ustream_printf(cl->us, "0\r\n\r\n");
+}
+
+/* blen is the size of buf; slen is the length of src. The input-string need
+** not be, and the output string will not be, null-terminated. Returns the
+** length of the decoded string, -1 on buffer overflow, -2 on malformed string. */
+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) && (len < 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
+ {
+ /* Encoding error: it's hard to think of a
+ ** scenario in which returning an incorrect
+ ** 'decoding' of the malformed string is
+ ** preferable to signaling an error condition. */
+ #if 0 /* WORSE_IS_BETTER */
+ buf[len++] = '%';
+ #else
+ return -2;
+ #endif
+ }
+ }
+ else
+ {
+ buf[len++] = src[i];
+ }
+ }
+
+ return (i == slen) ? len : -1;
+}
+
+/* blen is the size of buf; slen is the length of src. The input-string need
+** not be, and the output string will not be, null-terminated. Returns the
+** length of the encoded string, or -1 on error (buffer overflow) */
+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) && (len < 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];
+ }
+ else
+ {
+ len = -1;
+ break;
+ }
+ }
+
+ return (i == slen) ? len : -1;
+}
+
+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;
+}
--- /dev/null
+/*
+ * uhttpd - Tiny single-threaded httpd - Utility header
+ *
+ * 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.
+ */
+
+#ifndef _UHTTPD_UTILS_
+
+#include <sys/stat.h>
+
+#include <stdarg.h>
+#include <fcntl.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#define min(x, y) (((x) < (y)) ? (x) : (y))
+#define max(x, y) (((x) > (y)) ? (x) : (y))
+
+#define array_size(x) \
+ (sizeof(x) / sizeof(x[0]))
+
+#define fd_cloexec(fd) \
+ fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC)
+
+#ifdef __APPLE__
+static inline void clearenv(void)
+{
+ extern char **environ;
+ environ = NULL;
+}
+#endif
+
+#ifdef __GNUC__
+#define __printf(a, b) __attribute__((format(printf, a, b)))
+#else
+#define __printf(a, b)
+#endif
+
+int uh_urldecode(char *buf, int blen, const char *src, int slen);
+int uh_urlencode(char *buf, int blen, const char *src, int slen);
+int uh_b64decode(char *buf, int blen, const unsigned char *src, int slen);
+#endif
projects / project / uhttpd.git / commitdiff