oms-OnlineResourceWatcher/server/Controller/ApiController.h

302 lines
11 KiB
C++
Executable File

/**
* Karaka
*
* @package Models
* @copyright Dennis Eichhorn
* @license OMS License 1.0
* @version 1.0.0
* @link https://jingga.app
*/
#ifndef CONTROLLER_API_H
#define CONTROLLER_API_H
#include <stdio.h>
#include <stdlib.h>
#include "../cOMS/Utils/ArrayUtils.h"
#include "../cOMS/Utils/FileUtils.h"
#include "../cOMS/Utils/WebUtils.h"
#include "../cOMS/Hash/MeowHash.h"
#include "../cOMS/Utils/MathUtils.h"
#include "../cOMS/Threads/Thread.h"
#include "../cOMS/DataStorage/Database/Mapper/DataMapperFactory.h"
#include "../Models/Resource.h"
#include "../Models/ResourceMapper.h"
#include "../Models/ResourceType.h"
#include "../Models/ResourceStatus.h"
namespace Controller {
namespace ApiController {
static Application::ApplicationAbstract *app = NULL;
void printHelp(int argc, char **argv)
{
printf(" The Online Resource Watcher app developed by jingga checks online or local resources\n");
printf(" for changes and informs the user about them.\n\n");
printf(" Run: ./App ....\n\n");
printf(" -h: Prints the help output\n");
printf(" -v: Prints the version\n");
printf("\n");
printf(" Website: https://jingga.app\n");
printf(" Copyright: jingga (c) Dennis Eichhorn\n");
}
void printVersion(int argc, char **argv)
{
printf("Version: 1.0.0\n");
}
void notInstalled(int argc, char **argv)
{
printf("No config file available, is the application installed?\n");
printf("If not, run the application with:\n");
printf(" --install -t 1 or\n");
printf(" --install -t 2\n");
printf("where 1 = web installation and 2 = local installation.\n\n");
printf("Usually, '-t 2' is necessary if you see this message since the web\n");
printf("installation is performed in the web installer as described in the README.\n");
}
typedef struct {
Models::Resource **resources;
int count = 0;
} ThreadData;
void onlineResourceThreaded(void *arg)
{
ThreadData *data = (ThreadData *) arg;
char **urls = (char **) malloc(data->count * sizeof(char *));
int i;
for (i = 0; i < data->count; ++i) {
urls[i] = data->resources[i]->uri;
}
Utils::FileUtils::file_body *multi = Utils::WebUtils::multi_download(
urls,
data->count,
5,
0,
(ResourceTypes *) {.size = 4, .resources = {"jpg", "png", "gif", "css"}}
);
// @todo: flag for downloading resources types (e.g. js, css, img)
// @todo: limit filesize to abort downloading large files
if (urls != NULL) {
free(urls);
}
bool hasChanged = false;
meow_u128 tempHash;
for (i = 0; i < data->count; ++i) {
// cachedSource = Utils::FileUtils::read_file(data->resources[i]->last_version_path);
tempHash = Hash::Meow::MeowHash(Hash::Meow::MeowDefaultSeed, multi[i].size, multi[i].content);
if (hasChanged = (strcmp((char *) Hash::Meow::MeowStringify(tempHash), data->resources[i]->hash) == 0)) {
// @todo: do stuff because of change!!!
// create website image with pdf?
// inform users
}
if (hasChanged || data->resources[i]->checked_at == 0) {
// @todo: download references + css references (= second level)
// @todo: probably ignore javascript references, they are not useful for static offline comparisons!?
data->resources[i]->hash = (char *) Hash::Meow::MeowStringify(tempHash);
data->resources[i]->last_version_date = time(0);
// @todo: store new version
// @todo: check if older version can/needs to be removed
data->resources[i]->last_version_path = (char *) "PATH_TO_NEWEST_VERSION\0";
data->resources[i]->hash = (char *) "Hash_of_new_version\0";
}
data->resources[i]->checked_at = time(0);
// @todo: update data
//DataStorage::Database::DataMapperFactory::update(&Models::ResourceMapper)
// ->execute(data->resources[i]);
Models::free_Resource(data->resources[i]);
}
if (data->resources != NULL) {
free(data->resources);
}
if (arg != NULL) {
free(arg);
}
}
void offlineResourceThreaded(void *arg)
{
}
void checkResources(int argc, char **argv)
{
int idLength = 0;
Models::Resource *resources = NULL; // Elements freed in the threads
int i;
if (Utils::ArrayUtils::has_arg("-r", argv, argc)) {
char *resourceList = Utils::ArrayUtils::get_arg("-r", argv, argc);
char **resourceIdStrings = NULL;
idLength = Utils::StringUtils::str_split(resourceIdStrings, resourceList, ',');
resources = (Models::Resource *) malloc(idLength * sizeof(Models::Resource));
for (i = 0; i < idLength; ++i) {
resources[i].id = atoll(resourceIdStrings[i]);
}
if (resourceIdStrings != NULL) {
free(resourceIdStrings);
}
} else {
// @todo: limit memory usage by doing this multiple times in a loop with limits;
DataStorage::Database::QueryResult results = app->db->query_execute(
(char *) "SELECT * from oms.orw_resource WHERE oms.orw_resource_status = 1"
);
resources = (Models::Resource *) malloc(results.rows * sizeof(Models::Resource));
for (size_t row = 0; row < results.rows; ++row) {
resources[row] = {};
for (i = 0; i < results.columns; ++i) {
if (results.results[row * results.columns + i] != NULL) {
free(results.results[row * results.columns + i]);
}
}
}
if (results.results != NULL) {
free(results.results);
}
}
// How many resources are handled in one thread
// This must be multiplied with the thread count for the over all concurrent max downloads
int THREAD_SIZE = app->config["app"]["resources"]["online"]["downloads"].get<int>();
Models::Resource **onlineResources = (Models::Resource **) malloc(oms_min(idLength, THREAD_SIZE) * sizeof(Models::Resource *));
Models::Resource **offlineResources = (Models::Resource **) malloc(oms_min(idLength, THREAD_SIZE) * sizeof(Models::Resource *));
int j = 0;
int c = 0;
int k = 0;
for (i = 0; i < idLength; ++i) {
if (resources[i].type == Models::ResourceType::RESOURCE_ONLINE) {
onlineResources[j] = &resources[i];
++j;
} else {
offlineResources[k] = &resources[i];
++k;
}
// Handle online resources in batches here:
if (j > 0 && (j == THREAD_SIZE || i + 1 >= idLength)) {
ThreadData *data = (ThreadData *) malloc(sizeof(ThreadData));
data->resources = onlineResources;
data->count = j;
Threads::pool_add_work(app->pool, onlineResourceThreaded, data);
if (i + 1 < idLength) {
onlineResources = (Models::Resource **) malloc((oms_min(idLength - i, THREAD_SIZE)) * sizeof(Models::Resource *));
j = 0;
}
}
// Handle offline resources in batches here:
if (k > 0 && (k == THREAD_SIZE || i + 1 >= idLength)) {
ThreadData *data = (ThreadData *) malloc(sizeof(ThreadData));
data->resources = offlineResources;
data->count = k;
Threads::pool_add_work(app->pool, offlineResourceThreaded, data);
if (i + 1 < idLength) {
offlineResources = (Models::Resource **) malloc((oms_min(idLength - i, THREAD_SIZE)) * sizeof(Models::Resource *));
k = 0;
}
}
}
Threads::pool_wait(app->pool);
free(resources);
}
inline
bool isResourceDateModified(char *filename, time_t lastChange)
{
return oms_abs(Utils::FileUtils::last_modification(filename) - lastChange) > 1;
}
inline
bool hasResourceContentChanged(Utils::FileUtils::file_body f1, Utils::FileUtils::file_body f2)
{
meow_u128 h1 = Hash::Meow::MeowHash(Hash::Meow::MeowDefaultSeed, f1.size, f1.content);
meow_u128 h2 = Hash::Meow::MeowHash(Hash::Meow::MeowDefaultSeed, f2.size, f2.content);
return MeowHashesAreEqual(h1, h2);
}
Utils::FileUtils::file_body hasChanged(char *oldResource, char *newResource, time_t lastChange)
{
char *t;
int length = 0;
for (t = newResource; *t != '\0' && length < 7; ++t) {
++length;
}
Utils::FileUtils::file_body f1 = {0};
Utils::FileUtils::file_body f2 = {0};
bool isFileModified = false;
if (length > 5
&& (strncmp(newResource, "https:", 6) || strncmp(newResource, "www.", 4))
) {
// web resource
f1 = Utils::FileUtils::read_file(oldResource);
f2 = Utils::WebUtils::download(newResource);
} else {
// local resource
isFileModified = isResourceDateModified(oldResource, lastChange);
if (isFileModified) {
f1 = Utils::FileUtils::read_file(oldResource);
f2 = Utils::FileUtils::read_file(newResource);
}
}
bool hasChanged = f1.content && f2.content && (isFileModified || hasResourceContentChanged(f1, f2));
free(f1.content);
f1.size = -1;
if (hasChanged) {
free(f2.content);
f2.size = -1;
}
return f2;
}
void saveResourceChange(char *url, char *oldResource)
{
Utils::FileUtils::file_body dowloadData = Utils::WebUtils::download(url);
Utils::FileUtils::file_body fileData = Utils::FileUtils::read_file(oldResource);
}
}
}
#endif