# some utilities for converting numbers from hex # lowercase letters only for now == code # instruction effective address register displacement immediate # . op subop mod rm32 base index scale r32 # . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes hex-int?: # in: (addr slice) -> result/eax: boolean # . prologue 55/push-ebp 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # . save registers 51/push-ecx 52/push-edx 53/push-ebx # ecx = s 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx # edx = s->end 8b/copy 1/mod/*+disp8 1/rm32/ecx . . . 2/r32/edx 4/disp8 . # copy *(ecx+4) to edx # var curr/ecx: (addr byte) = s->start 8b/copy 0/mod/indirect 1/rm32/ecx . . . 1/r32/ecx . . # copy *ecx to ecx # if s is empty return false b8/copy-to-eax 0/imm32/false 39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx 73/jump-if-addr>= $hex-int?:end/disp8 # skip past leading '-' # . if (*curr == '-') ++curr 31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx 8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 3/r32/BL . . # copy byte at *ecx to BL 81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x2d/imm32/- # compare ebx 75/jump-if-!= $hex-int?:initial-0/disp8 # . ++curr 41/increment-ecx # skip past leading '0x' $hex-int?:initial-0: # . if (*curr != '0') jump to loop 31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx 8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 3/r32/BL . . # copy byte at *ecx to BL 81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x30/imm32/0 # compare ebx 75/jump-if-!= $hex-int?:loop/disp8 # . ++curr 41/increment-ecx $hex-int?:initial-0x: # . if (curr >= in->end) return true 39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx 73/jump-if-addr>= $hex-int?:true/disp8 # . if (*curr != 'x') jump to loop # the previous '0' is still valid so doesn't need to be checked again 31/xor 3/mod/direct 3/rm32/ebx . . . 3/r32/ebx . . # clear ebx 8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 3/r32/BL . . # copy byte at *ecx to BL 81 7/subop/compare 3/mod/direct 3/rm32/ebx . . . . . 0x78/imm32/x # compare ebx 75/jump-if-!= $hex-int?:loop/disp8 # . ++curr 41/increment-ecx $hex-int?:loop: # if (curr >= in->end) return true 39/compare 3/mod/direct 1/rm32/ecx . . . 2/r32/edx . . # compare ecx with edx 73/jump-if-addr>= $hex-int?:true/disp8 # var eax: boolean = hex-digit?(*curr) # . . push args 8a/copy-byte 0/mod/indirect 1/rm32/ecx . . . 0/r32/AL . . # copy byte at *ecx to AL 50/push-eax # . . call e8/call hex-digit?/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp # if (eax == false) return false 3d/compare-eax-and 0/imm32/false 74/jump-if-= $hex-int?:end/disp8 # ++curr 41/increment-ecx # loop eb/jump $hex-int?:loop/disp8 $hex-int?:true: # return true b8/copy-to-eax 1/imm32/true $hex-int?:end: # . restore registers 5b/pop-to-ebx 5a/pop-to-edx 59/pop-to-ecx # . epilogue 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp 5d/pop-to-ebp c3/return test-hex-int: # . prologue 55/push-ebp 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # (eax..ecx) = "34" b8/copy-to-eax "34"/imm32 8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx 05/add-to-eax 4/imm32 # var slice/ecx: slice = {eax, ecx} 51/push-ecx 50/push-eax 89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx # eax = hex-int?(slice) # . . push args 51/push-ecx # . . call e8/call hex-int?/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp # check-ints-equal(eax, 1, msg) # . . push args 68/push "F - test-hex-int"/imm32 68/push 1/imm32/true 50/push-eax # . . call e8/call check-ints-equal/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp # . epilogue 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp 5d/pop-to-ebp c3/return test-hex-int-handles-letters: # . prologue 55/push-ebp 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # (eax..ecx) = "34a" b8/copy-to-eax "34a"/imm32 8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx 05/add-to-eax 4/imm32 # var slice/ecx: slice = {eax, ecx} 51/push-ecx 50/push-eax 89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx # eax = hex-int?(slice) # . . push args 51/push-ecx # . . call e8/call hex-int?/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp # check-ints-equal(eax, 1, msg) # . . push args 68/push "F - test-hex-int-handles-letters"/imm32 68/push 1/imm32/true 50/push-eax # . . call e8/call check-ints-equal/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp # . epilogue 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp 5d/pop-to-ebp c3/return test-hex-int-with-trailing-char: # . prologue 55/push-ebp 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # (eax..ecx) = "34q" b8/copy-to-eax "34q"/imm32 8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx 05/add-to-eax 4/imm32 # var slice/ecx: slice = {eax, ecx} 51/push-ecx 50/push-eax 89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx # eax = hex-int?(slice) # . . push args 51/push-ecx # . . call e8/call hex-int?/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp # check-ints-equal(eax, 0, msg) # . . push args 68/push "F - test-hex-int-with-trailing-char"/imm32 68/push 0/imm32/false 50/push-eax # . . call e8/call check-ints-equal/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp # . epilogue 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp 5d/pop-to-ebp c3/return test-hex-int-with-leading-char: # . prologue 55/push-ebp 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # (eax..ecx) = "q34" b8/copy-to-eax "q34"/imm32 8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx 05/add-to-eax 4/imm32 # var slice/ecx: slice = {eax, ecx} 51/push-ecx 50/push-eax 89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx # eax = hex-int?(slice) # . . push args 51/push-ecx # . . call e8/call hex-int?/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp # check-ints-equal(eax, 0, msg) # . . push args 68/push "F - test-hex-int-with-leading-char"/imm32 68/push 0/imm32/false 50/push-eax # . . call e8/call check-ints-equal/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp # . epilogue 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp 5d/pop-to-ebp c3/return test-hex-int-empty: # . prologue 55/push-ebp 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # var slice/ecx: slice = "" 68/push 0/imm32 68/push 0/imm32 89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx # eax = hex-int?(slice) # . . push args 51/push-ecx # . . call e8/call hex-int?/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp # check-ints-equal(eax, 0, msg) # . . push args 68/push "F - test-hex-int-empty"/imm32 68/push 0/imm32/false 50/push-eax # . . call e8/call check-ints-equal/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp # . epilogue 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp 5d/pop-to-ebp c3/return test-hex-int-handles-0x-prefix: # . prologue 55/push-ebp 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # (eax..ecx) = "0x3a" b8/copy-to-eax "0x3a"/imm32 8b/copy 0/mod/
/*
 * http_upload.c
 *
 * Copyright (C) 2012 - 2019 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 <https://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 "config.h"

#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 "event/client_events.h"
#include "tools/http_upload.h"
#include "config/preferences.h"
#include "ui/ui.h"
#include "ui/window.h"
#include "common.h"

#define FALLBACK_MIMETYPE "application/octet-stream"
#define FALLBACK_CONTENTTYPE_HEADER "Content-Type: 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 = strdup(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 = strdup(FALLBACK_MSG);
    }
    win_print_http_upload(upload->window, 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) {
        content_type_header = strdup(FALLBACK_CONTENTTYPE_HEADER);
    }
    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 =