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// upload.cpp
// this file is part of Context Free
// ---------------------
// Copyright (C) 2007 Mark Lentczner - markl@glyphic.com
// Copyright (C) 2008-2017 John Horigan - john@glyphic.com
//
// This program 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 2
// of the License, or (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// John Horigan can be contacted at john@glyphic.com or at
// John Horigan, 1209 Villa St., Mountain View, CA 94041-1123, USA
//
// Mark Lentczner can be contacted at markl@glyphic.com or at
// Mark Lentczner, 1209 Villa St., Mountain View, CA 94041-1123, USA
//
//
#include "upload.h"
#include <ostream>
#include "variation.h"
#include "json3.hpp"
using json = nlohmann::json;
namespace {
const char mime_boundary[] = "a3c8dfd7-dce4-443c-ae3c-446df50f28c0";
const char mime_endl[] = "\r\n";
void generateMimeBoundary(std::ostream& out)
{
out << mime_endl << "--" << mime_boundary << mime_endl;
}
void generateMimeFooter(std::ostream& out)
{
out << mime_endl << "--" << mime_boundary << "--" << mime_endl;
}
void generateTextField(std::ostream& out, const char* field,
const std::string& value)
{
generateMimeBoundary(out);
out << "Content-Disposition: form-data"
<< "; name=" << field // shouldn't need quotes
<< mime_endl
<< "Content-Type: text/plain; charset=UTF-8" << mime_endl
<< mime_endl;
out << value;
}
void generateTextField(std::ostream& out, const char* field,
char value)
{
generateMimeBoundary(out);
out << "Content-Disposition: form-data"
<< "; name=" << field // shouldn't need quotes
<< mime_endl
<< "Content-Type: text/plain; charset=UTF-8" << mime_endl
<< mime_endl;
out << value;
}
void generateFileField(std::ostream& out, const char* field,
const char* data, std::size_t length, const std::string& fileName)
{
generateMimeBoundary(out);
out << "Content-Disposition: form-data"
<< "; name=" << field // shouldn't need quotes
<< "; filename=\"" << fileName << '"'
<< mime_endl
<< "Content-Type: application/octet-stream" << mime_endl
<< mime_endl;
out.write(data, length);
}
std::string compressionName(Upload::Compression compression)
{
switch (compression) {
default:
case Upload::CompressJPEG: return "JPEG";
case Upload::CompressPNG8: return "PNG-8";
}
}
std::string variationName(int variation)
{
return Variation::toString(variation, false);
}
}
std::string Upload::generateHeader()
{
return std::string("Content-Type: multipart/form-data; boundary=") +
mime_boundary;
}
std::string Upload::generateContentType()
{
return std::string("multipart/form-data; boundary=") +
mime_boundary;
}
void
Upload::generatePayload(std::ostream& out)
{
generateTextField(out, "screenname", mUserName);
generateTextField(out, "password", mPassword);
generateTextField(out, "agent", "ContextFree");
generateTextField(out, "title", mTitle);
generateFileField(out, "cfdgfile", mText, mTextLen, mFileName);
generateFileField(out, "imagefile", mImage, mImageLen, "image.png");
generateTextField(out, "compression", compressionName(mCompression));
generateTextField(out, "ccURI", mccLicenseURI);
generateTextField(out, "ccName", mccLicenseName);
generateTextField(out, "ccImage", mccLicenseImage);
if (mTiled)
generateTextField(out, "tiled", "on");
generateTextField(out, "tiledtype", (char)(mTiled + '0'));
generateTextField(out, "variation", variationName(mVariation));
if (mTags.length())
generateTextField(out, "tags", mTags);
generateTextField(out, "notes", mNotes);
// generateTextField(out, "submit", "Upload!");
generateMimeFooter(out);
}
Upload::Upload(const char* jsonbuf, std::size_t jsonlen)
{
// This ctor is used for parsing upload response and download response.
// It only parses the parts of the JSON body required for those
// purposes. It tucks the cfdg text into the password field, which
// is kind of janky.
try {
auto j = json::parse({jsonbuf, jsonlen});
mId = j.at("design").at("id").get<int>();
mFileName = j.at("design").at("filelocation").get<std::string>();
try {
mVariation = Variation::fromString(j.at("design").at("variation").get<std::string>().c_str());
} catch (...) {}
try {
// Only present for gallery download
mPassword = j.at("cfdg").get<std::string>();
}
catch (...) {}
} catch (...) {
mId = 0;
}
}
std::vector<std::string>
Upload::AllTags(const char* jsonbuf, std::size_t jsonlen)
{
std::vector<std::string> ret;
try {
auto j = json::parse({jsonbuf, jsonlen});
auto tags = j.at("tags");
if (!tags.is_array())
return ret;
for (auto&&tag : tags) {
std::string name = tag.at("name").get<std::string>();
if (!name.empty())
ret.emplace_back(std::move(name));
}
} catch (...) {}
return ret;
}
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