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server.cpp
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server.cpp
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// Copyright (c) 2022 Perets Dmytro
// Author: Perets Dmytro <[email protected]>
//
// Personal usage is allowed only if this comment was not changed or deleted.
// Commercial usage must be agreed with the author of this comment.
#include "server.h"
#include "mongoose.c"
#include "constants.hpp"
#include "strscan.c"
#include "resources.hpp"
#include "database.h"
#include "sha256.hpp"
#include "config_script.h"
#include "Gen_QR.h"
#include "zip_dir.h"
const char* address = DEFAULT_SERVER_ADDRESS;
const char* log_level = "2";
int hexdump = 0;
static struct mg_mgr manager{ };
static struct mg_connection* server_connection;
struct user_credentials
{
std::string login;
std::string password;
time_t last_access = 0;
};
static std::map<uint64_t, user_credentials> session_cookies;
// Handle interrupts, like Ctrl-C
static int s_signo = 0;
static void signal_handler(int signo) { s_signo = signo; }
typedef struct
{
size_t files;
size_t folders;
size_t total;
char* filename;
} statistics;
typedef struct
{
const char* data;
uint64_t len;
uint64_t pos;
} str_buf_fd;
typedef char* (* prepare_function)(const char* path, const char* path_abs);
inline statistics directory_count(const char* dir);
inline char* explorer_file_prepare_html(const char* file, const char* file_abs);
inline char* explorer_directory_prepare_html(const char* dir, const char* dir_abs);
inline std::string directory_list_html(const char* dir, const char* dir_abs, prepare_function prepare_dir, prepare_function prepare_file);
inline int starts_with(const char* str, const char* prefix);
inline char* path_dirname(const char* path);
inline const char* path_basename(const char* path);
inline char* getcwd();
inline void http_redirect_to_session(struct mg_connection* connection, uint64_t session_cookie, const char* url_fmt, ...);
inline void http_redirect_to(struct mg_connection* connection, const char* url_fmt, ...);
inline char* http_get_ret_path(struct mg_http_message* msg);
inline char* http_get_ret_path_encoded(struct mg_http_message* msg);
inline uint64_t http_get_session_cookie(mg_http_message* msg);
inline uint64_t session_cookie_generate(const char* login, const char* password);
inline bool session_cookie_is_valid(uint64_t session_cookie);
inline user_credentials session_cookie_get_user_credentials(uint64_t session_cookie);
inline void http_send_resource_file(struct mg_connection* connection, struct mg_http_message* msg, const char* rcdata, size_t rcsize);
inline void mg_http_serve_tmp_file(
struct mg_connection* c, struct mg_http_message* hm, const char* path, const struct mg_http_serve_opts* opts
);
inline void handle_index_html(struct mg_connection* connection, struct mg_http_message* msg);
inline void handle_favicon_html(struct mg_connection* connection, struct mg_http_message* msg);
inline void handle_login_html(struct mg_connection* connection, struct mg_http_message* msg, const char* database_user_password);
inline void handle_register_html(struct mg_connection* connection, struct mg_http_message* msg, const char* database_user_password);
inline void handle_explorer_html(struct mg_connection* connection, struct mg_http_message* msg);
inline void handle_delete_html(struct mg_connection* connection, struct mg_http_message* msg);
inline void handle_uploader_html(struct mg_connection* connection, struct mg_http_message* msg);
inline void handle_upload_html(struct mg_connection* connection, struct mg_http_message* msg);
inline void handle_mkdir_html(struct mg_connection* connection, struct mg_http_message* msg);
inline void handle_move_html(struct mg_connection* connection, struct mg_http_message* msg);
inline void handle_copy_html(struct mg_connection* connection, struct mg_http_message* msg);
inline void handle_download_html(struct mg_connection* connection, struct mg_http_message* msg);
inline void handle_rename_html(struct mg_connection* connection, struct mg_http_message* msg);
inline void handle_extension_html(struct mg_connection* connection, struct mg_http_message* msg);
inline void handle_qr_html(struct mg_connection* connection, struct mg_http_message* msg);
inline void send_error_html(struct mg_connection* connection, int code, const char* color)
{
mg_http_reply(
connection, code, "Content-Type: text/html\r\n", reinterpret_cast<const char*>(error_html),
color, color, color, color, code, mg_http_status_code_str(code)
);
}
inline void handle_http_message(struct mg_connection* connection, struct mg_http_message* msg, const char* database_user_password)
{
if (mg_http_match_uri(msg, "/") || mg_http_match_uri(msg, "/index.html") || mg_http_match_uri(msg, "/index"))
handle_index_html(connection, msg);
else if (mg_http_match_uri(msg, "/favicon.ico") || mg_http_match_uri(msg, "/favicon"))
handle_favicon_html(connection, msg);
else if (mg_http_match_uri(msg, "/login"))
handle_login_html(connection, msg, database_user_password);
else if (mg_http_match_uri(msg, "/register"))
handle_register_html(connection, msg, database_user_password);
else if (starts_with(msg->uri.ptr, "/explorer/"))
handle_explorer_html(connection, msg);
else if (starts_with(msg->uri.ptr, "/uploader/"))
handle_uploader_html(connection, msg);
else if (starts_with(msg->uri.ptr, "/upload/"))
handle_upload_html(connection, msg);
else if (starts_with(msg->uri.ptr, "/mkdir/"))
handle_mkdir_html(connection, msg);
else if (starts_with(msg->uri.ptr, "/move/"))
handle_move_html(connection, msg);
else if (starts_with(msg->uri.ptr, "/copy/"))
handle_copy_html(connection, msg);
else if (starts_with(msg->uri.ptr, "/download/"))
handle_download_html(connection, msg);
else if (starts_with(msg->uri.ptr, "/delete/"))
handle_delete_html(connection, msg);
else if (starts_with(msg->uri.ptr, "/extension/"))
handle_extension_html(connection, msg);
else if (starts_with(msg->uri.ptr, "/qr/") || starts_with(msg->uri.ptr, "/qr"))
handle_qr_html(connection, msg);
else send_error_html(connection, 404, "rgba(147, 0, 0, 0.90)");
}
void client_handler(struct mg_connection* connection, int ev, void* ev_data, void* fn_data)
{
if (ev == MG_EV_HTTP_MSG)
{
const char* database_user_password = *static_cast<const char**>(fn_data);
auto* msg = static_cast<mg_http_message*>(ev_data);
handle_http_message(connection, msg, database_user_password);
}
}
void server_initialize(const char* database_user_password)
{
signal(SIGINT, signal_handler);
signal(SIGTERM, signal_handler);
mg_log_set(log_level);
mg_mgr_init(&manager);
mariadb_create_db(database_user_password);
auto connection = mariadb_connect_to_db(database_user_password);
if (connection)
mariadb_create_table(connection.get());
else
MG_ERROR(("Cannot connect to database using database_user_password. Please check your mariadb configuration and try again."));
config_initialization_thread();
}
void server_run(const char* database_user_password)
{
if (!(server_connection = mg_http_listen(&manager, address, client_handler, &database_user_password)))
{
MG_ERROR(("Cannot start listening on %s. Use 'http://ADDR:PORT' or just ':PORT'", address));
exit(EXIT_FAILURE);
}
if (hexdump) server_connection->is_hexdumping = 1;
auto cwd = getcwd();
MG_INFO(("Mongoose v" MG_VERSION));
MG_INFO(("Server listening on : [%s]", address));
MG_INFO(("Web root directory : [file://%s/]", cwd));
delete[] cwd;
while (s_signo == 0) mg_mgr_poll(&manager, 1000);
mg_mgr_free(&manager);
MG_INFO(("Exiting due to signal [%d]...", s_signo));
}
void server_destroy_database(const char* database_user_password) { mariadb_drop_db(database_user_password); }
inline void handle_index_html(struct mg_connection* connection, struct mg_http_message* msg)
{
char* ret_path = http_get_ret_path_encoded(msg);
if (*ret_path)
mg_http_reply(connection, 200, "Content-Type: text/html\r\n", reinterpret_cast<const char*>(index_html), ret_path, ret_path);
else
mg_http_reply(connection, 200, "Content-Type: text/html\r\n", reinterpret_cast<const char*>(index_html), "", "");
delete[] ret_path;
}
inline void handle_favicon_html(struct mg_connection* connection, struct mg_http_message* msg)
{
http_send_resource_file(connection, msg, reinterpret_cast<const char*>(favicon_ico), favicon_ico_len);
}
inline void handle_login_html(struct mg_connection* connection, struct mg_http_message* msg, const char* database_user_password)
{
char login[MAX_LOGIN]{ }, password[MAX_PASSWORD]{ };
mg_http_get_var(&msg->body, "login", login, MAX_LOGIN);
mg_http_get_var(&msg->body, "password", password, MAX_PASSWORD);
auto conn = mariadb_connect_to_db(database_user_password);
if (!conn)
{
send_error_html(connection, 501, "rgba(147, 120, 0, 0.90)");
return;
}
auto db_password = mariadb_user_get_password(conn.get(), login);
if (db_password && !strcmp(db_password, password) && strcmp(db_password, "") != 0)
{
char* ret_path = http_get_ret_path(msg);
system((std::string("mkdir -p './") + login + "/'").c_str());
http_redirect_to_session(connection, session_cookie_generate(login, password), ret_path);
delete[] ret_path;
}
else
{
char* ret_path = http_get_ret_path_encoded(msg);
mg_http_reply(
connection, 200, "Content-Type: text/html\r\n",
reinterpret_cast<const char*>(invalid_credentials_html),
"Invalid credentials.<br/>Please register or contact support to recover your account.",
ret_path, login, password, ret_path, login, password
);
delete[] ret_path;
}
}
inline void handle_register_html(struct mg_connection* connection, struct mg_http_message* msg, const char* database_user_password)
{
char login[MAX_LOGIN]{ }, password[MAX_PASSWORD]{ };
mg_http_get_var(&msg->body, "login", login, MAX_LOGIN);
mg_http_get_var(&msg->body, "password", password, MAX_PASSWORD);
auto conn = mariadb_connect_to_db(database_user_password);
if (!conn)
{
send_error_html(connection, 501, "rgba(147, 120, 0, 0.90)");
return;
}
if (!mariadb_user_insert(conn.get(), login, password))
{
char* ret_path = http_get_ret_path_encoded(msg);
mg_http_reply(
connection, 200, "Content-Type: text/html\r\n",
reinterpret_cast<const char*>(invalid_credentials_html),
"User already exists.<br/>Try out another username.",
ret_path, "", "", ret_path, login, password
);
delete[] ret_path;
}
else
{
char* ret_path = http_get_ret_path(msg);
system((std::string("mkdir -p './") + login + "/'").c_str());
http_redirect_to_session(connection, session_cookie_generate(login, password), ret_path);
delete[] ret_path;
}
}
inline void handle_explorer_html(struct mg_connection* connection, struct mg_http_message* msg)
{
uint64_t session_cookie = http_get_session_cookie(msg);
if (session_cookie_is_valid(session_cookie))
{
auto user_credentials = session_cookie_get_user_credentials(session_cookie);
char* dir_rel = nullptr;
auto dir = new char[msg->uri.len + MAX_LOGIN]{ };
char* uri = new char[msg->uri.len + 1];
strncpy(uri, msg->uri.ptr, msg->uri.len);
uri[msg->uri.len] = 0;
strscanf(uri, "/explorer/%s", &dir_rel);
size_t len = (dir_rel ? strlen(dir_rel) + 1 : 0);
mg_url_decode(dir_rel, len, dir_rel, len, 1);
sprintf(dir, "%s%s", user_credentials.login.c_str(), (dir_rel ? dir_rel : ""));
delete[] uri;
std::string path("./");
path += dir;
struct stat st{ };
if (::stat(path.c_str(), &st) < 0)
{
send_error_html(connection, 404, "rgba(147, 0, 0, 0.90)");
delete[] dir;
delete[] dir_rel;
return;
}
if (S_ISREG(st.st_mode))
{
struct mg_http_serve_opts opts{ };
std::string extra_header;
if (st.st_size > MAX_INLINE_FILE_SIZE)
{
extra_header = "Content-Disposition: attachment; filename=\"";
extra_header += path_basename(path.c_str());
extra_header += "\"\r\n";
opts.extra_headers = extra_header.c_str();
}
mg_http_serve_file(connection, msg, path.c_str(), &opts);
delete[] dir;
delete[] dir_rel;
return;
}
auto dir_rel_dirname = path_dirname(dir_rel);
mg_http_reply(
connection, 200, "Content-Type: text/html\r\n", reinterpret_cast<const char*>(explorer_html),
dir_rel_dirname, user_credentials.login.c_str(), dir_rel_dirname, path_basename(dir_rel),
dir_rel,
dir_rel, dir_rel,
directory_list_html(
dir_rel, dir,
explorer_directory_prepare_html, explorer_file_prepare_html
).c_str()
);
delete[] dir_rel_dirname;
delete[] dir_rel;
delete[] dir;
}
else
{
char* curr_url = new char[msg->uri.len * 3]{ };
mg_url_encode(msg->uri.ptr, msg->uri.len, curr_url, msg->uri.len * 3);
http_redirect_to(connection, "/?return_to=%s", curr_url);
delete[] curr_url;
}
}
inline void handle_delete_html(struct mg_connection* connection, struct mg_http_message* msg)
{
uint64_t session_cookie = http_get_session_cookie(msg);
if (session_cookie_is_valid(session_cookie))
{
auto user_credentials = session_cookie_get_user_credentials(session_cookie);
char* dir_rel = nullptr;
auto dir = new char[msg->uri.len + MAX_LOGIN]{ };
char* uri = new char[msg->uri.len + 1];
strncpy(uri, msg->uri.ptr, msg->uri.len);
uri[msg->uri.len] = 0;
strscanf(uri, "/delete/%s", &dir_rel);
size_t len = (dir_rel ? strlen(dir_rel) + 1 : 0);
mg_url_decode(dir_rel, len, dir_rel, len, 1);
sprintf(dir, "%s%s", user_credentials.login.c_str(), (dir_rel ? dir_rel : ""));
delete[] uri;
std::string path("./");
path += dir;
struct stat st{ };
if (::stat(path.c_str(), &st) < 0)
{
delete[] dir;
delete[] dir_rel;
return;
}
system(("rm -rf '" + path + "'").c_str());
mg_http_reply(connection, 200, "Content-Type: text/plain\r\n", "Ok");
delete[] dir_rel;
delete[] dir;
}
}
inline void handle_uploader_html(struct mg_connection* connection, struct mg_http_message* msg)
{
uint64_t session_cookie = http_get_session_cookie(msg);
if (session_cookie_is_valid(session_cookie))
{
auto user_credentials = session_cookie_get_user_credentials(session_cookie);
char* dir_rel = nullptr;
auto dir = new char[msg->uri.len + MAX_LOGIN]{ };
char* uri = new char[msg->uri.len + 1];
strncpy(uri, msg->uri.ptr, msg->uri.len);
uri[msg->uri.len] = 0;
strscanf(uri, "/uploader/%s", &dir_rel);
size_t len = (dir_rel ? strlen(dir_rel) + 1 : 0);
mg_url_decode(dir_rel, len, dir_rel, len, 1);
sprintf(dir, "%s%s", user_credentials.login.c_str(), (dir_rel ? dir_rel : ""));
delete[] uri;
std::string path("./");
path += dir;
struct stat st{ };
if (::stat(path.c_str(), &st) < 0 && S_ISDIR(st.st_mode))
{
send_error_html(connection, 404, "rgba(147, 0, 0, 0.90)");
delete[] dir;
delete[] dir_rel;
return;
}
mg_http_reply(
connection, 200, "Content-Type: text/html\r\n", reinterpret_cast<const char*>(uploader_html),
dir_rel, dir_rel, dir_rel, dir_rel,
dir_rel, dir_rel, dir_rel, dir_rel
);
delete[] dir_rel;
delete[] dir;
}
else
{
char* curr_url = new char[msg->uri.len * 3]{ };
mg_url_encode(msg->uri.ptr, msg->uri.len, curr_url, msg->uri.len * 3);
http_redirect_to(connection, "/?return_to=%s", curr_url);
delete[] curr_url;
}
}
inline void handle_upload_html(struct mg_connection* connection, struct mg_http_message* msg)
{
char* filename = new char[1]{ }, * sha = new char[1]{ };
long long pos = -1;
uint64_t session_cookie = http_get_session_cookie(msg);
struct mg_http_part form_part{ };
size_t ofs = 0;
while ((ofs = mg_http_next_multipart(msg->body, ofs, &form_part)) > 0)
{
MG_INFO((
"Chunk name: [%.*s] filename: [%.*s] length: %lu bytes",
form_part.name.len, form_part.name.ptr, form_part.filename.len,
form_part.filename.ptr, form_part.body.len
));
if (!strncmp(form_part.name.ptr, "start", form_part.name.len))
{
auto tmp = strndup(form_part.body.ptr, form_part.body.len);
MG_INFO(("[start] = %s", tmp));
pos = strtoll(tmp, nullptr, 10);
delete[] tmp;
}
else if (!strncmp(form_part.name.ptr, "name", form_part.name.len))
{
delete[] filename;
filename = strndup(form_part.body.ptr, form_part.body.len);
}
else if (!strncmp(form_part.name.ptr, "sha", form_part.name.len))
{
delete[] sha;
sha = strndup(form_part.body.ptr, form_part.body.len);
}
else if (!strncmp(form_part.name.ptr, "file", form_part.name.len) && *filename && pos >= 0)
{
if (session_cookie_is_valid(session_cookie))
{
auto user_credentials = session_cookie_get_user_credentials(session_cookie);
if (sha256(std::string(form_part.body.ptr, form_part.body.len)) != sha)
{
delete[] filename;
delete[] sha;
mg_http_reply(connection, 200, "Content-Type: text/plain\r\n", "Fail");
return;
}
char* dir_rel = nullptr;
auto dir = new char[msg->uri.len + MAX_LOGIN]{ };
char* uri = new char[msg->uri.len + 1];
strncpy(uri, msg->uri.ptr, msg->uri.len);
uri[msg->uri.len] = 0;
strscanf(uri, "/upload/%s", &dir_rel);
size_t len = (dir_rel ? strlen(dir_rel) + 1 : 0);
mg_url_decode(dir_rel, len, dir_rel, len, 1);
sprintf(dir, "%s%s", user_credentials.login.c_str(), (dir_rel ? dir_rel : ""));
delete[] uri;
std::string path("./");
path += dir;
struct stat st{ };
if (::stat(path.c_str(), &st) < 0)
{
delete[] dir;
delete[] dir_rel;
delete[] filename;
delete[] sha;
mg_http_reply(connection, 200, "Content-Type: text/plain\r\n", "Fail");
return;
}
path += "/";
path += filename;
FILE* file = fopen(path.c_str(), "ab");
fseek(file, pos, SEEK_SET);
fwrite(form_part.body.ptr, sizeof(char), form_part.body.len, file);
fclose(file);
mg_http_reply(connection, 200, "Content-Type: text/plain\r\n", "Ok");
delete[] dir;
delete[] dir_rel;
}
else mg_http_reply(connection, 404, "Content-Type: text/plain\r\n", "Invalid");
}
else mg_http_reply(connection, 404, "Content-Type: text/plain\r\n", "Invalid");
}
delete[] filename;
delete[] sha;
}
inline void handle_mkdir_html(struct mg_connection* connection, struct mg_http_message* msg)
{
uint64_t session_cookie = http_get_session_cookie(msg);
struct mg_http_part form_part{ };
size_t ofs = 0;
while ((ofs = mg_http_next_multipart(msg->body, ofs, &form_part)) > 0)
{
MG_INFO((
"Chunk name: [%.*s] filename: [%.*s] length: %lu bytes",
form_part.name.len, form_part.name.ptr, form_part.filename.len,
form_part.filename.ptr, form_part.body.len
));
if (!strncmp(form_part.name.ptr, "folder", form_part.name.len))
{
if (session_cookie_is_valid(session_cookie))
{
auto user_credentials = session_cookie_get_user_credentials(session_cookie);
char* dir_rel = nullptr;
auto dir = new char[msg->uri.len + MAX_LOGIN]{ };
char* uri = new char[msg->uri.len + 1];
strncpy(uri, msg->uri.ptr, msg->uri.len);
uri[msg->uri.len] = 0;
strscanf(uri, "/mkdir/%s", &dir_rel);
size_t len = (dir_rel ? strlen(dir_rel) + 1 : 0);
mg_url_decode(dir_rel, len, dir_rel, len, 1);
sprintf(dir, "%s%s", user_credentials.login.c_str(), (dir_rel ? dir_rel : ""));
delete[] uri;
std::string path("./");
path += dir;
struct stat st{ };
if (::stat(path.c_str(), &st) < 0)
{
delete[] dir;
delete[] dir_rel;
return;
}
path += "/";
path.append(form_part.body.ptr, form_part.body.len);
system(("mkdir -p '" + path + "'").c_str());
mg_http_reply(connection, 200, "Content-Type: text/plain\r\n", "Ok");
delete[] dir;
delete[] dir_rel;
}
else mg_http_reply(connection, 404, "Content-Type: text/plain\r\n", "Invalid");
}
else mg_http_reply(connection, 404, "Content-Type: text/plain\r\n", "Invalid");
}
}
inline void handle_move_html(struct mg_connection* connection, struct mg_http_message* msg)
{
uint64_t session_cookie = http_get_session_cookie(msg);
struct mg_http_part form_part{ };
size_t ofs = 0;
while ((ofs = mg_http_next_multipart(msg->body, ofs, &form_part)) > 0)
{
MG_INFO((
"Chunk name: [%.*s] filename: [%.*s] length: %lu bytes",
form_part.name.len, form_part.name.ptr, form_part.filename.len,
form_part.filename.ptr, form_part.body.len
));
if (!strncmp(form_part.name.ptr, "to", form_part.name.len))
{
if (session_cookie_is_valid(session_cookie))
{
auto user_credentials = session_cookie_get_user_credentials(session_cookie);
char* file_rel = nullptr;
auto file = new char[msg->uri.len + MAX_LOGIN]{ };
char* uri = new char[msg->uri.len + 1];
strncpy(uri, msg->uri.ptr, msg->uri.len);
uri[msg->uri.len] = 0;
strscanf(uri, "/move/%s", &file_rel);
size_t file_len = (file_rel ? strlen(file_rel) + 1 : 0);
mg_url_decode(file_rel, file_len, file_rel, file_len, 1);
sprintf(file, "%s%s", user_credentials.login.c_str(), (file_rel ? file_rel : ""));
delete[] uri;
std::string path_from("./");
path_from += file;
struct stat st{ };
if (::stat(path_from.c_str(), &st) < 0)
{
delete[] file;
delete[] file_rel;
mg_http_reply(connection, 404, "Content-Type: text/plain\r\n", "Fail");
return;
}
std::string path_to("./");
path_to += user_credentials.login;
char* tmp = new char[form_part.body.len + 1]{ };
mg_url_decode(form_part.body.ptr, form_part.body.len, tmp, form_part.body.len + 1, 1);
path_to += tmp;
delete[] tmp;
system(("mkdir -p '" + std::string(path_dirname(path_to.c_str())) + "'").c_str());
system(("mv -f '" + path_from + "' '" + path_to + "'").c_str());
mg_http_reply(connection, 200, "Content-Type: text/plain\r\n", "Ok");
delete[] file;
delete[] file_rel;
}
else mg_http_reply(connection, 404, "Content-Type: text/plain\r\n", "Invalid");
}
else mg_http_reply(connection, 404, "Content-Type: text/plain\r\n", "Invalid");
}
}
inline void handle_copy_html(struct mg_connection* connection, struct mg_http_message* msg)
{
uint64_t session_cookie = http_get_session_cookie(msg);
struct mg_http_part form_part{ };
size_t ofs = 0;
while ((ofs = mg_http_next_multipart(msg->body, ofs, &form_part)) > 0)
{
MG_INFO((
"Chunk name: [%.*s] filename: [%.*s] length: %lu bytes",
form_part.name.len, form_part.name.ptr, form_part.filename.len,
form_part.filename.ptr, form_part.body.len
));
if (!strncmp(form_part.name.ptr, "to", form_part.name.len))
{
if (session_cookie_is_valid(session_cookie))
{
auto user_credentials = session_cookie_get_user_credentials(session_cookie);
char* file_rel = nullptr;
auto file = new char[msg->uri.len + MAX_LOGIN]{ };
char* uri = new char[msg->uri.len + 1];
strncpy(uri, msg->uri.ptr, msg->uri.len);
uri[msg->uri.len] = 0;
strscanf(uri, "/copy/%s", &file_rel);
size_t file_len = (file_rel ? strlen(file_rel) + 1 : 0);
mg_url_decode(file_rel, file_len, file_rel, file_len, 1);
sprintf(file, "%s%s", user_credentials.login.c_str(), (file_rel ? file_rel : ""));
delete[] uri;
std::string path_from("./");
path_from += file;
struct stat st{ };
if (::stat(path_from.c_str(), &st) < 0)
{
delete[] file;
delete[] file_rel;
mg_http_reply(connection, 404, "Content-Type: text/plain\r\n", "Fail");
return;
}
std::string path_to("./");
path_to += user_credentials.login;
char* tmp = new char[form_part.body.len + 1]{ };
mg_url_decode(form_part.body.ptr, form_part.body.len, tmp, form_part.body.len + 1, 1);
path_to += tmp;
delete[] tmp;
system(("mkdir -p '" + std::string(path_dirname(path_to.c_str())) + "'").c_str());
system(("cp -rf '" + path_from + "' '" + path_to + "'").c_str());
mg_http_reply(connection, 200, "Content-Type: text/plain\r\n", "Ok");
delete[] file;
delete[] file_rel;
}
else mg_http_reply(connection, 404, "Content-Type: text/plain\r\n", "Invalid");
}
else mg_http_reply(connection, 404, "Content-Type: text/plain\r\n", "Invalid");
}
}
inline void handle_download_html(struct mg_connection* connection, struct mg_http_message* msg)
{
uint64_t session_cookie = http_get_session_cookie(msg);
if (session_cookie_is_valid(session_cookie))
{
auto user_credentials = session_cookie_get_user_credentials(session_cookie);
char* file_rel = nullptr;
auto file = new char[msg->uri.len + MAX_LOGIN]{ };
char* uri = new char[msg->uri.len + 1];
strncpy(uri, msg->uri.ptr, msg->uri.len);
uri[msg->uri.len] = 0;
strscanf(uri, "/download/%s", &file_rel);
size_t file_len = (file_rel ? strlen(file_rel) + 1 : 0);
mg_url_decode(file_rel, file_len, file_rel, file_len, 1);
sprintf(file, "%s%s", user_credentials.login.c_str(), (file_rel ? file_rel : ""));
delete[] uri;
std::string path("./");
path += file;
struct stat st{ };
if (::stat(path.c_str(), &st) < 0)
{
send_error_html(connection, 404, "rgba(147, 0, 0, 0.90)");
delete[] file;
delete[] file_rel;
return;
}
if (S_ISREG(st.st_mode))
{
struct mg_http_serve_opts opts{ };
std::string extra_header;
extra_header = "Content-Disposition: attachment; filename=\"";
extra_header += path_basename(path.c_str());
extra_header += "\"\r\n";
opts.extra_headers = extra_header.c_str();
mg_http_serve_file(connection, msg, path.c_str(), &opts);
delete[] file;
delete[] file_rel;
return;
}
else if (S_ISDIR(st.st_mode))
{
std::string basename(path_basename(path.c_str()));
struct mg_http_serve_opts opts{ };
std::string extra_header;
extra_header = "Content-Disposition: attachment; filename=\"";
extra_header += basename + ".zip";
extra_header += "\"\r\n";
opts.extra_headers = extra_header.c_str();
while (path.back() == '/') path.pop_back();
char* encoded = new char[path.size() * 3]{ };
mg_url_encode(path.c_str(), path.size(), encoded, path.size() * 3);
auto zipfile = std::string(encoded) + ".zip";
delete[] encoded;
system(("rm -rf \"" + zipfile + "\"").c_str());
zip_directory(path, zipfile);
mg_http_serve_tmp_file(connection, msg, zipfile.c_str(), &opts);
delete[] file;
delete[] file_rel;
return;
}
else
{
send_error_html(connection, 404, "rgba(147, 0, 0, 0.90)");
delete[] file;
delete[] file_rel;
return;
}
delete[] file;
delete[] file_rel;
}
else
{
char* curr_url = new char[msg->uri.len * 3]{ };
mg_url_encode(msg->uri.ptr, msg->uri.len, curr_url, msg->uri.len * 3);
http_redirect_to(connection, "/?return_to=%s", curr_url);
delete[] curr_url;
}
}
inline void handle_extension_html(struct mg_connection* connection, struct mg_http_message* msg)
{
uint64_t session_cookie = http_get_session_cookie(msg);
auto user_credentials = session_cookie_get_user_credentials(session_cookie);
char* uri = new char[msg->uri.len + 1];
strncpy(uri, msg->uri.ptr, msg->uri.len);
uri[msg->uri.len] = 0;
char* extension = nullptr, * dir = nullptr;
strscanf(uri, "/extension/%s/%s", &extension, &dir);
size_t len = (dir ? strlen(dir) + 1 : 0);
mg_url_decode(dir, len, dir, len, 1);
delete[] uri;
refresh_config_script();
auto res = call_lua_extension(
{ .login = user_credentials.login, .session_cookie = session_cookie, .valid = session_cookie_is_valid(session_cookie),
.name = extension, .argument = (dir ? dir : "") }
);
mg_http_reply(connection, res.response_code, "Content-Type: text/html\r\n", res.page.c_str());
delete[] dir;
}
inline void handle_qr_html(struct mg_connection* connection, struct mg_http_message* msg)
{
char* data = new char[msg->query.len]{ }, bg[8]{ }, fg[8]{ };
mg_http_get_var(&msg->query, "data", data, msg->query.len);
mg_http_get_var(&msg->query, "bg", bg, 8);
mg_http_get_var(&msg->query, "fg", fg, 8);
std::string bgs, fgs;
if (*bg)
bgs = bg;
else
bgs = "#ffffff";
if (*fg)
fgs = fg;
else
fgs = "#000000";
mg_http_reply(
connection, 200, "Content-Type: image/svg+xml;\r\n",
To_svg_string(generate_qr_code(data), 0, bgs.c_str(), fgs.c_str()).c_str()
);
delete[] data;
}
#include "database.cpp"
#include "templates.hpp"
inline static consteval size_t static_strlen(const char* str)
{
size_t len = 0;
for (; *str; ++len, ++str);
return len;
}
inline statistics directory_count(const char* dir)
{
statistics result{ };
DIR* dirp = opendir((std::string("./") + dir).c_str());
if (!dirp) return result;
struct dirent* entry;
while ((entry = readdir(dirp)))
{
if (!strcmp(entry->d_name, ".") || !strcmp(entry->d_name, "..")) continue;
if (entry->d_type == DT_DIR) ++result.folders, ++result.total;
if (entry->d_type == DT_REG) ++result.files, ++result.total;
}
closedir(dirp);
return result;
}
inline const char* get_filename_ext(const char* filename)
{
const char* dot = nullptr;
for (const char* dot_tmp = filename; *dot_tmp; ++dot_tmp)
if (*dot_tmp == '.')
dot = dot_tmp;
if (!dot || dot == filename) return "";
return dot + 1;
}
inline char* explorer_directory_prepare_html(const char* dir, const char* dir_abs)
{
statistics st = directory_count(dir_abs);
char* html = new char[static_strlen(explorer_dir_html) + 2088];
auto dirname = path_dirname(dir);
sprintf(
html, explorer_dir_html,
dir, dir, dir, dir, dirname, dir, dir, dir, path_basename(dir), path_basename(dir), st.files, st.folders
);
delete[] dirname;
return html;