minetest/src/convert_json.cpp

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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <vector>
#include <iostream>
#include <sstream>
#include "convert_json.h"
#include "mods.h"
#include "config.h"
#include "log.h"
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#include "main.h" // for g_settings
#include "settings.h"
#include "version.h"
#if USE_CURL
#include <curl/curl.h>
static size_t WriteCallback(void *contents, size_t size, size_t nmemb, void *userp)
{
((std::string*)userp)->append((char*)contents, size * nmemb);
return size * nmemb;
}
#endif
Json::Value fetchJsonValue(const std::string url,
struct curl_slist *chunk) {
#if USE_CURL
std::string liststring;
CURL *curl;
curl = curl_easy_init();
if (curl)
{
CURLcode res;
curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &liststring);
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curl_easy_setopt(curl, CURLOPT_TIMEOUT_MS, g_settings->getS32("curl_timeout"));
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curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT_MS, g_settings->getS32("curl_timeout"));
curl_easy_setopt(curl, CURLOPT_USERAGENT, (std::string("Minetest ")+minetest_version_hash).c_str());
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if (chunk != 0)
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
res = curl_easy_perform(curl);
if (res != CURLE_OK)
errorstream<<"Jsonreader: "<< url <<" not found (" << curl_easy_strerror(res) << ")" <<std::endl;
curl_easy_cleanup(curl);
}
Json::Value root;
Json::Reader reader;
std::istringstream stream(liststring);
if (!liststring.size()) {
return Json::Value();
}
if (!reader.parse( stream, root ) )
{
errorstream << "URL: " << url << std::endl;
errorstream << "Failed to parse json data " << reader.getFormattedErrorMessages();
errorstream << "data: \"" << liststring << "\"" << std::endl;
return Json::Value();
}
if (root.isArray()) {
return root;
}
if ((root["list"].isArray())) {
return root["list"];
}
else {
return root;
}
#endif
return Json::Value();
}
std::vector<ModStoreMod> readModStoreList(Json::Value& modlist) {
std::vector<ModStoreMod> retval;
if (modlist.isArray()) {
for (unsigned int i = 0; i < modlist.size(); i++)
{
ModStoreMod toadd;
toadd.valid = true;
//id
if (modlist[i]["id"].asString().size()) {
std::string id_raw = modlist[i]["id"].asString();
char* endptr = 0;
int numbervalue = strtol(id_raw.c_str(),&endptr,10);
if ((id_raw != "") && (*endptr == 0)) {
toadd.id = numbervalue;
}
else {
errorstream << "readModStoreList: missing id" << std::endl;
toadd.valid = false;
}
}
else {
errorstream << "readModStoreList: missing id" << std::endl;
toadd.valid = false;
}
//title
if (modlist[i]["title"].asString().size()) {
toadd.title = modlist[i]["title"].asString();
}
else {
errorstream << "readModStoreList: missing title" << std::endl;
toadd.valid = false;
}
//basename
if (modlist[i]["basename"].asString().size()) {
toadd.basename = modlist[i]["basename"].asString();
}
else {
errorstream << "readModStoreList: missing basename" << std::endl;
toadd.valid = false;
}
//author
//rating
//version
if (toadd.valid) {
retval.push_back(toadd);
}
}
}
return retval;
}
ModStoreModDetails readModStoreModDetails(Json::Value& details) {
ModStoreModDetails retval;
retval.valid = true;
//version set
if (details["version_set"].isArray()) {
for (unsigned int i = 0; i < details["version_set"].size(); i++)
{
ModStoreVersionEntry toadd;
if (details["version_set"][i]["id"].asString().size()) {
std::string id_raw = details["version_set"][i]["id"].asString();
char* endptr = 0;
int numbervalue = strtol(id_raw.c_str(),&endptr,10);
if ((id_raw != "") && (*endptr == 0)) {
toadd.id = numbervalue;
}
}
else {
errorstream << "readModStoreModDetails: missing version_set id" << std::endl;
retval.valid = false;
}
//date
if (details["version_set"][i]["date"].asString().size()) {
toadd.date = details["version_set"][i]["date"].asString();
}
//file
if (details["version_set"][i]["file"].asString().size()) {
toadd.file = details["version_set"][i]["file"].asString();
}
else {
errorstream << "readModStoreModDetails: missing version_set file" << std::endl;
retval.valid = false;
}
//approved
//mtversion
if( retval.valid ) {
retval.versions.push_back(toadd);
}
else {
break;
}
}
}
if (retval.versions.size() < 1) {
errorstream << "readModStoreModDetails: not a single version specified!" << std::endl;
retval.valid = false;
}
//categories
if (details["categories"].isObject()) {
for (unsigned int i = 0; i < details["categories"].size(); i++) {
ModStoreCategoryInfo toadd;
if (details["categories"][i]["id"].asString().size()) {
std::string id_raw = details["categories"][i]["id"].asString();
char* endptr = 0;
int numbervalue = strtol(id_raw.c_str(),&endptr,10);
if ((id_raw != "") && (*endptr == 0)) {
toadd.id = numbervalue;
}
}
else {
errorstream << "readModStoreModDetails: missing categories id" << std::endl;
retval.valid = false;
}
if (details["categories"][i]["title"].asString().size()) {
toadd.name = details["categories"][i]["title"].asString();
}
else {
errorstream << "readModStoreModDetails: missing categories title" << std::endl;
retval.valid = false;
}
if( retval.valid ) {
retval.categories.push_back(toadd);
}
else {
break;
}
}
}
//author
if (details["author"].isObject()) {
if (details["author"]["id"].asString().size()) {
std::string id_raw = details["author"]["id"].asString();
char* endptr = 0;
int numbervalue = strtol(id_raw.c_str(),&endptr,10);
if ((id_raw != "") && (*endptr == 0)) {
retval.author.id = numbervalue;
}
else {
errorstream << "readModStoreModDetails: missing author id (convert)" << std::endl;
retval.valid = false;
}
}
else {
errorstream << "readModStoreModDetails: missing author id" << std::endl;
retval.valid = false;
}
if (details["author"]["username"].asString().size()) {
retval.author.username = details["author"]["username"].asString();
}
else {
errorstream << "readModStoreModDetails: missing author username" << std::endl;
retval.valid = false;
}
}
else {
errorstream << "readModStoreModDetails: missing author" << std::endl;
retval.valid = false;
}
//license
if (details["license"].isObject()) {
if (details["license"]["id"].asString().size()) {
std::string id_raw = details["license"]["id"].asString();
char* endptr = 0;
int numbervalue = strtol(id_raw.c_str(),&endptr,10);
if ((id_raw != "") && (*endptr == 0)) {
retval.license.id = numbervalue;
}
}
else {
errorstream << "readModStoreModDetails: missing license id" << std::endl;
retval.valid = false;
}
if (details["license"]["short"].asString().size()) {
retval.license.shortinfo = details["license"]["short"].asString();
}
else {
errorstream << "readModStoreModDetails: missing license short" << std::endl;
retval.valid = false;
}
if (details["license"]["link"].asString().size()) {
retval.license.url = details["license"]["link"].asString();
}
}
//titlepic
if (details["titlepic"].isObject()) {
if (details["titlepic"]["id"].asString().size()) {
std::string id_raw = details["titlepic"]["id"].asString();
char* endptr = 0;
int numbervalue = strtol(id_raw.c_str(),&endptr,10);
if ((id_raw != "") && (*endptr == 0)) {
retval.titlepic.id = numbervalue;
}
}
if (details["titlepic"]["file"].asString().size()) {
retval.titlepic.file = details["titlepic"]["file"].asString();
}
if (details["titlepic"]["desc"].asString().size()) {
retval.titlepic.description = details["titlepic"]["desc"].asString();
}
if (details["titlepic"]["mod"].asString().size()) {
std::string mod_raw = details["titlepic"]["mod"].asString();
char* endptr = 0;
int numbervalue = strtol(mod_raw.c_str(),&endptr,10);
if ((mod_raw != "") && (*endptr == 0)) {
retval.titlepic.mod = numbervalue;
}
}
}
//id
if (details["id"].asString().size()) {
std::string id_raw = details["id"].asString();
char* endptr = 0;
int numbervalue = strtol(id_raw.c_str(),&endptr,10);
if ((id_raw != "") && (*endptr == 0)) {
retval.id = numbervalue;
}
}
else {
errorstream << "readModStoreModDetails: missing id" << std::endl;
retval.valid = false;
}
//title
if (details["title"].asString().size()) {
retval.title = details["title"].asString();
}
else {
errorstream << "readModStoreModDetails: missing title" << std::endl;
retval.valid = false;
}
//basename
if (details["basename"].asString().size()) {
retval.basename = details["basename"].asString();
}
else {
errorstream << "readModStoreModDetails: missing basename" << std::endl;
retval.valid = false;
}
//description
if (details["desc"].asString().size()) {
retval.description = details["desc"].asString();
}
//repository
if (details["replink"].asString().size()) {
retval.repository = details["replink"].asString();
}
//value
if (details["rating"].asString().size()) {
std::string id_raw = details["rating"].asString();
char* endptr = 0;
float numbervalue = strtof(id_raw.c_str(),&endptr);
if ((id_raw != "") && (*endptr == 0)) {
retval.rating = numbervalue;
}
}
else {
retval.rating = 0.0;
}
//depends
if (details["depends"].isArray()) {
//TODO
}
//softdepends
if (details["softdep"].isArray()) {
//TODO
}
//screenshot url
if (details["screenshot_url"].asString().size()) {
retval.screenshot_url = details["screenshot_url"].asString();
}
return retval;
}