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Implement XEP-0363: HTTP File Upload

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This commit is contained in:
Dominik Heidler
2016-04-11 20:13:18 +02:00
parent 28e260c7da
commit 1b0ce852bb
24 changed files with 954 additions and 29 deletions
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337
src/tools/http_upload.c Normal file
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/*
* http_upload.c
*
* Copyright (C) 2012 - 2016 James Booth <boothj5@gmail.com>
*
* This file is part of Profanity.
*
* Profanity is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Profanity is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Profanity. If not, see <http://www.gnu.org/licenses/>.
*
* In addition, as a special exception, the copyright holders give permission to
* link the code of portions of this program with the OpenSSL library under
* certain conditions as described in each individual source file, and
* distribute linked combinations including the two.
*
* You must obey the GNU General Public License in all respects for all of the
* code used other than OpenSSL. If you modify file(s) with this exception, you
* may extend this exception to your version of the file(s), but you are not
* obligated to do so. If you do not wish to do so, delete this exception
* statement from your version. If you delete this exception statement from all
* source files in the program, then also delete it here.
*
*/
#define _GNU_SOURCE 1
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <curl/curl.h>
#include <gio/gio.h>
#include <pthread.h>
#include <assert.h>
#include "profanity.h"
#include "ui/ui.h"
#include "ui/window.h"
#include "tools/http_upload.h"
#include "event/client_events.h"
#include "config/preferences.h"
#define FALLBACK_MIMETYPE "application/octet-stream"
#define FALLBACK_MSG ""
#define FILE_HEADER_BYTES 512
struct curl_data_t {
char *buffer;
size_t size;
};
static int
_xferinfo(void *userdata, curl_off_t dltotal, curl_off_t dlnow, curl_off_t ultotal, curl_off_t ulnow)
{
HTTPUpload *upload = (HTTPUpload *)userdata;
pthread_mutex_lock(&lock);
if (upload->cancel) {
pthread_mutex_unlock(&lock);
return 1;
}
if (upload->bytes_sent == ulnow) {
pthread_mutex_unlock(&lock);
return 0;
} else {
upload->bytes_sent = ulnow;
}
unsigned int ulperc = 0;
if (ultotal != 0) {
ulperc = (100 * ulnow) / ultotal;
}
char *msg;
if (asprintf(&msg, "Uploading '%s': %d%%", upload->filename, ulperc) == -1) {
msg = FALLBACK_MSG;
}
win_update_entry_message(upload->window, upload->put_url, msg);
free(msg);
pthread_mutex_unlock(&lock);
return 0;
}
#if LIBCURL_VERSION_NUM < 0x072000
static int
_older_progress(void *p, double dltotal, double dlnow, double ultotal, double ulnow)
{
return _xferinfo(p, (curl_off_t)dltotal, (curl_off_t)dlnow, (curl_off_t)ultotal, (curl_off_t)ulnow);
}
#endif
static size_t
_data_callback(void *ptr, size_t size, size_t nmemb, void *data)
{
size_t realsize = size * nmemb;
struct curl_data_t *mem = (struct curl_data_t *) data;
mem->buffer = realloc(mem->buffer, mem->size + realsize + 1);
if (mem->buffer)
{
memcpy( &( mem->buffer[ mem->size ] ), ptr, realsize );
mem->size += realsize;
mem->buffer[ mem->size ] = 0;
}
return realsize;
}
void *
http_file_put(void *userdata)
{
HTTPUpload *upload = (HTTPUpload *)userdata;
FILE *fd = NULL;
char *err = NULL;
char *content_type_header;
CURL *curl;
CURLcode res;
upload->cancel = 0;
upload->bytes_sent = 0;
pthread_mutex_lock(&lock);
char* msg;
if (asprintf(&msg, "Uploading '%s': 0%%", upload->filename) == -1) {
msg = FALLBACK_MSG;
}
win_print_with_receipt(upload->window, '!', 0, NULL, 0, THEME_TEXT_ME, NULL, msg, upload->put_url);
free(msg);
char *cert_path = prefs_get_string(PREF_TLS_CERTPATH);
pthread_mutex_unlock(&lock);
curl_global_init(CURL_GLOBAL_ALL);
curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, upload->put_url);
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
struct curl_slist *headers = NULL;
if (asprintf(&content_type_header, "Content-Type: %s", upload->mime_type) == -1) {
msg = FALLBACK_MSG;
}
headers = curl_slist_append(headers, content_type_header);
headers = curl_slist_append(headers, "Expect:");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
#if LIBCURL_VERSION_NUM >= 0x072000
curl_easy_setopt(curl, CURLOPT_XFERINFOFUNCTION, _xferinfo);
curl_easy_setopt(curl, CURLOPT_XFERINFODATA, upload);
#else
curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, _older_progress);
curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, upload);
#endif
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
struct curl_data_t output;
output.buffer = NULL;
output.size = 0;
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, _data_callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&output);
curl_easy_setopt(curl, CURLOPT_USERAGENT, "profanity");
if (!(fd = fopen(upload->filename, "rb"))) {
if (asprintf(&err, "failed to open '%s'", upload->filename) == -1) {
err = NULL;
}
goto end;
}
if (cert_path) {
curl_easy_setopt(curl, CURLOPT_CAPATH, cert_path);
}
curl_easy_setopt(curl, CURLOPT_READDATA, fd);
curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE, (curl_off_t)(upload->filesize));
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
if ((res = curl_easy_perform(curl)) != CURLE_OK) {
err = strdup(curl_easy_strerror(res));
} else {
long http_code = 0;
curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_code);
if (output.buffer) {
output.buffer[output.size++] = '\0';
}
// XEP-0363 specifies 201 but prosody returns 200
if (http_code != 200 && http_code != 201) {
if (asprintf(&err, "Server returned %lu", http_code) == -1) {
err = NULL;
}
}
#if 0
printf("HTTP Status: %lu\n", http_code);
printf("%s\n", output.buffer);
printf("%lu bytes retrieved\n", (long)output.size);
#endif
}
end:
curl_easy_cleanup(curl);
curl_global_cleanup();
curl_slist_free_all(headers);
if (fd) {
fclose(fd);
}
free(content_type_header);
free(output.buffer);
pthread_mutex_lock(&lock);
prefs_free_string(cert_path);
if (err) {
char *msg;
if (upload->cancel) {
if (asprintf(&msg, "Uploading '%s' failed: Upload was canceled", upload->filename) == -1) {
msg = FALLBACK_MSG;
}
} else {
if (asprintf(&msg, "Uploading '%s' failed: %s", upload->filename, err) == -1) {
msg = FALLBACK_MSG;
}
win_update_entry_message(upload->window, upload->put_url, msg);
}
cons_show_error(msg);
free(msg);
free(err);
} else {
if (!upload->cancel) {
if (asprintf(&msg, "Uploading '%s': 100%%", upload->filename) == -1) {
msg = FALLBACK_MSG;
}
win_update_entry_message(upload->window, upload->put_url, msg);
//win_update_entry_theme(upload->window, upload->put_url, THEME_THEM);
win_mark_received(upload->window, upload->put_url);
free(msg);
switch (upload->window->type) {
case WIN_CHAT:
{
ProfChatWin *chatwin = (ProfChatWin*)(upload->window);
assert(chatwin->memcheck == PROFCHATWIN_MEMCHECK);
cl_ev_send_msg(chatwin, upload->get_url, upload->get_url);
break;
}
case WIN_PRIVATE:
{
ProfPrivateWin *privatewin = (ProfPrivateWin*)(upload->window);
assert(privatewin->memcheck == PROFPRIVATEWIN_MEMCHECK);
cl_ev_send_priv_msg(privatewin, upload->get_url, upload->get_url);
break;
}
case WIN_MUC:
{
ProfMucWin *mucwin = (ProfMucWin*)(upload->window);
assert(mucwin->memcheck == PROFMUCWIN_MEMCHECK);
cl_ev_send_muc_msg(mucwin, upload->get_url, upload->get_url);
break;
}
default:
break;
}
}
}
upload_processes = g_slist_remove(upload_processes, upload);
pthread_mutex_unlock(&lock);
free(upload->filename);
free(upload->mime_type);
free(upload->get_url);
free(upload->put_url);
free(upload);
return NULL;
}
char*
file_mime_type(const char* const file_name)
{
char *out_mime_type;
char file_header[FILE_HEADER_BYTES];
FILE *fd;
if (!(fd = fopen(file_name, "rb"))) {
return strdup(FALLBACK_MIMETYPE);
}
size_t file_header_size = fread(file_header, 1, FILE_HEADER_BYTES, fd);
fclose(fd);
char *content_type = g_content_type_guess(file_name, (unsigned char*)file_header, file_header_size, NULL);
if (content_type != NULL) {
char *mime_type = g_content_type_get_mime_type(content_type);
out_mime_type = strdup(mime_type);
g_free(mime_type);
}
else {
return strdup(FALLBACK_MIMETYPE);
}
g_free(content_type);
return out_mime_type;
}
off_t file_size(const char* const filename)
{
struct stat st;
stat(filename, &st);
return st.st_size;
}
int is_regular_file(const char *filename)
{
struct stat st;
stat(filename, &st);
return S_ISREG(st.st_mode);
}

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src/tools/http_upload.h Normal file
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/*
* http_upload.h
*
* Copyright (C) 2012 - 2016 James Booth <boothj5@gmail.com>
*
* This file is part of Profanity.
*
* Profanity is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Profanity is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Profanity. If not, see <http://www.gnu.org/licenses/>.
*
* In addition, as a special exception, the copyright holders give permission to
* link the code of portions of this program with the OpenSSL library under
* certain conditions as described in each individual source file, and
* distribute linked combinations including the two.
*
* You must obey the GNU General Public License in all respects for all of the
* code used other than OpenSSL. If you modify file(s) with this exception, you
* may extend this exception to your version of the file(s), but you are not
* obligated to do so. If you do not wish to do so, delete this exception
* statement from your version. If you delete this exception statement from all
* source files in the program, then also delete it here.
*
*/
#ifndef TOOLS_HTTP_UPLOAD_H
#define TOOLS_HTTP_UPLOAD_H
#include <curl/curl.h>
// forward -> ui/win_types.h
typedef struct prof_win_t ProfWin;
typedef struct http_upload_t {
char *filename;
off_t filesize;
curl_off_t bytes_sent;
char *mime_type;
char *get_url;
char *put_url;
ProfWin *window;
pthread_t worker;
int cancel;
} HTTPUpload;
GSList *upload_processes;
void* http_file_put(void *userdata);
char* file_mime_type(const char* const file_name);
off_t file_size(const char* const file_name);
int is_regular_file(const char *filename);
#endif