mirror of
https://github.com/Relintai/wp_saver_rcpp_fw.git
synced 2024-11-14 04:57:23 +01:00
Moved the download code to a new class. Still blocking though.
This commit is contained in:
parent
a453ffda84
commit
0022dfa6d5
250
app/wp_downloader.cpp
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250
app/wp_downloader.cpp
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@ -0,0 +1,250 @@
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#include "wp_downloader.h"
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#include <string.h>
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#include <chrono>
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#include <iostream>
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#include <string>
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#include "core/math/math.h"
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#include "core/database/database_manager.h"
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#include "core/database/query_builder.h"
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#include "core/database/query_result.h"
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#include "core/database/table_builder.h"
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#include "core/html/html_parser.h"
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#include "core/settings.h"
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#include "modules/drogon/drogon/lib/inc/drogon/HttpClient.h"
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#include "modules/drogon/drogon/lib/inc/http/HttpRequest.h"
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void WPDownloader::setup_database() {
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Ref<QueryBuilder> qb = db->get_query_builder();
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qb->select("name")->from("sqlite_master")->where()->wp("type", "table")->land()->wp("name", "settings")->end_command();
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Ref<QueryResult> res = qb->run();
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if (res->next_row()) {
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return;
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}
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qb->reset();
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Ref<TableBuilder> tb = db->get_table_builder();
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tb->create_table("settings");
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tb->integer("id")->auto_increment()->next_row();
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tb->varchar("last_url", 1000)->not_null()->next_row();
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tb->integer("table_version")->not_null()->next_row();
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tb->primary_key("id");
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tb->ccreate_table();
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tb->create_table("data");
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tb->integer("id")->auto_increment()->next_row();
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tb->varchar("url", 1000)->not_null()->next_row();
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tb->text("full_data")->not_null()->next_row();
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tb->text("extracted_data")->not_null()->next_row();
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tb->primary_key("id");
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tb->ccreate_table();
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tb->run_query();
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qb->insert("settings", "id,last_url,table_version")->values()->val(1)->val("")->val(1)->cvalues()->end_command();
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qb->run_query();
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}
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String WPDownloader::get_last_url() {
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Ref<QueryBuilder> qb = db->get_query_builder();
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qb->select("last_url")->from("settings")->where()->wp("id", 1)->end_command();
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Ref<QueryResult> res = qb->run();
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if (!res->next_row()) {
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RLOG_ERR("get_last_url: !res->next_row()");
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return "";
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}
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return String(res->get_cell(0));
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}
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void WPDownloader::save_page(const String &url, const String &full_data, const String &extracted_data) {
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Ref<QueryBuilder> qb = db->get_query_builder();
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qb->begin_transaction();
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qb->insert("data", "url,full_data,extracted_data")->values()->val(url)->val(full_data)->val(extracted_data)->cvalues()->end_command();
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qb->update("settings")->set()->setp("last_url", url)->cset()->end_command();
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qb->commit();
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qb->run();
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}
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void WPDownloader::query_page(trantor::EventLoop *loop, const String &url, const String &path) {
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drogon::HttpClientPtr http_client = drogon::HttpClient::newHttpClient(url, loop, false, false);
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http_client->setUserAgent("Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Firefox/78.0");
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drogon::HttpRequestPtr request = drogon::HttpRequest::newHttpRequest();
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request->setMethod(drogon::HttpMethod::Get);
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request->setPath(path);
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// request->setCustomContentTypeString("Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8\nAccept-Language: en-US,en;q=0.5\n");
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bool done = false;
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http_client->sendRequest(request, [this, &done](drogon::ReqResult res, const drogon::HttpResponsePtr &resptr) {
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if (res != drogon::ReqResult::Ok) {
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RLOG_ERR("sendRequest: res != ReqResult::Ok!");
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done = true;
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return;
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}
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RLOG_MSG("Got response. Saving.");
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ss = new String(resptr->getBody().data());
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done = true;
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});
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while (!done) {
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// todo remove
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}
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}
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void WPDownloader::download_posts(const String &site) {
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setup_database();
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String url = Settings::get_singleton()->get_value(site + ".url");
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String port = Settings::get_singleton()->get_value(site + ".port");
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String first_url = Settings::get_singleton()->get_value(site + ".first_url");
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String last_url = get_last_url();
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// String url = "127.0.0.1";
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// String port = "http";
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// String first_url = "/";
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// String last_url = get_last_url();
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String full_site_url = port + "://" + url;
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String full_site_url_repl = full_site_url;
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if (full_site_url_repl.ends_with("/")) {
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full_site_url_repl.pop_back();
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}
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int wait_seconds_min = Settings::get_singleton()->get_value_int(site + ".wait_seconds_min", 10);
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int wait_seconds_max = Settings::get_singleton()->get_value_int(site + ".wait_seconds_max", 20);
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bool should_skip = true;
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if (last_url == "") {
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should_skip = false;
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last_url = first_url;
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}
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RLOG_MSG("Post downloading started for " + site + " | last url: " + last_url);
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while (!done) {
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RLOG_MSG("Sending query to: " + full_site_url + last_url);
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query_page(main_event_loop, full_site_url, last_url);
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if (ss) {
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HTMLParser p;
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p.parse(*ss);
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HTMLParserTag *article_tag = p.root->get_first("article");
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String extracted_data = "";
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String next_link;
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if (article_tag) {
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extracted_data = article_tag->to_string();
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} else {
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RLOG_WARN("Couldn't extract data!");
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}
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HTMLParserTag *n_link_tag = p.root->get_first("a", "rel", "next");
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if (n_link_tag) {
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next_link = n_link_tag->get_attribute_value("href");
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if (next_link == "") {
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RLOG_WARN("Couldn't extract link!");
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}
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} else {
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next_link = "";
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RLOG_WARN("Couldn't extract link tag!");
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}
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if (should_skip) {
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should_skip = false;
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RLOG_MSG("Continuing from last session, this page is already saved, skipping.");
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} else {
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save_page(last_url, *ss, extracted_data);
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}
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if (next_link == "") {
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done = true;
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} else {
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int wait_seconds = Math::rand(wait_seconds_min, wait_seconds_max);
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RLOG_MSG("Waiting for " + String::num(wait_seconds) + " seconds!");
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std::this_thread::sleep_for(std::chrono::duration<double, std::milli>(wait_seconds * 1000));
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last_url = next_link;
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if (last_url.starts_with(full_site_url_repl)) {
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last_url.replace(full_site_url_repl, "", 1);
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}
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}
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} else {
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done = true;
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}
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delete ss;
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ss = nullptr;
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}
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}
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void WPDownloader::setup(const String &site, Database *p_db) {
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site_name = site;
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db = p_db;
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}
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void WPDownloader::run() {
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download_posts(site_name);
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}
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void WPDownloader::stop() {
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done = true;
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}
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void WPDownloader::_thread_func() {
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main_event_loop = new trantor::EventLoop();
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main_event_loop->loop();
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delete main_event_loop;
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main_event_loop = nullptr;
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}
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WPDownloader::WPDownloader() {
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done = false;
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save_original_data = true;
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main_event_loop = nullptr;
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ss = nullptr;
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t = nullptr;
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db = nullptr;
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t = new std::thread(&WPDownloader::_thread_func, this);
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while (main_event_loop == nullptr) {
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// todo sleep
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}
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}
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WPDownloader::~WPDownloader() {
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main_event_loop->quit();
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t->join();
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delete t;
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t = nullptr;
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}
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38
app/wp_downloader.h
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38
app/wp_downloader.h
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#ifndef WP_DOWNLOADER_H
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#define WP_DOWNLOADER_H
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#include "core/reference.h"
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#include "core/database/database.h"
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#include "modules/drogon/trantor/net/EventLoop.h"
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class WPDownloader : public Reference {
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RCPP_OBJECT(WPDownloader, Reference);
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public:
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void setup_database();
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String get_last_url();
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void save_page(const String &url, const String &full_data, const String &extracted_data);
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void query_page(trantor::EventLoop *loop, const String &url, const String &path);
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void download_posts(const String &site);
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void setup(const String &site, Database *p_db);
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void run();
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void stop();
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void _thread_func();
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WPDownloader();
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~WPDownloader();
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bool done;
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bool save_original_data;
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String site_name;
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trantor::EventLoop *main_event_loop;
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String *ss;
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std::thread *t;
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Database *db;
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};
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#endif
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215
main.cpp
215
main.cpp
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#include <string>
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#include "app/wp_downloader.h"
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void initialize_backends() {
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initialize_database_backends();
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backend_hash_hashlib_install_providers();
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}
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trantor::EventLoop *main_event_loop;
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void setup_database(Database *db) {
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Ref<QueryBuilder> qb = db->get_query_builder();
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qb->select("name")->from("sqlite_master")->where()->wp("type", "table")->land()->wp("name", "settings")->end_command();
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Ref<QueryResult> res = qb->run();
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if (res->next_row()) {
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return;
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}
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qb->reset();
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Ref<TableBuilder> tb = db->get_table_builder();
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tb->create_table("settings");
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tb->integer("id")->auto_increment()->next_row();
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tb->varchar("last_url", 1000)->not_null()->next_row();
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tb->integer("table_version")->not_null()->next_row();
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tb->primary_key("id");
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tb->ccreate_table();
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tb->create_table("data");
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tb->integer("id")->auto_increment()->next_row();
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tb->varchar("url", 1000)->not_null()->next_row();
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tb->text("full_data")->not_null()->next_row();
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tb->text("extracted_data")->not_null()->next_row();
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tb->primary_key("id");
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tb->ccreate_table();
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tb->run_query();
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qb->insert("settings", "id,last_url,table_version")->values()->val(1)->val("")->val(1)->cvalues()->end_command();
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qb->run_query();
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}
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String get_last_url(Database *db) {
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Ref<QueryBuilder> qb = db->get_query_builder();
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qb->select("last_url")->from("settings")->where()->wp("id", 1)->end_command();
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Ref<QueryResult> res = qb->run();
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if (!res->next_row()) {
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RLOG_ERR("get_last_url: !res->next_row()");
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return "";
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}
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return String(res->get_cell(0));
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}
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void save_page(Database *db, const String &url, const String &full_data, const String &extracted_data) {
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Ref<QueryBuilder> qb = db->get_query_builder();
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qb->begin_transaction();
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qb->insert("data", "url,full_data,extracted_data")->values()->val(url)->val(full_data)->val(extracted_data)->cvalues()->end_command();
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qb->update("settings")->set()->setp("last_url", url)->cset()->end_command();
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qb->commit();
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qb->run();
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}
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String *ss = nullptr;
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void query_page(trantor::EventLoop *loop, const String &url, const String &path) {
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HttpClientPtr http_client = drogon::HttpClient::newHttpClient(url, loop, false, false);
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http_client->setUserAgent("Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Firefox/78.0");
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HttpRequestPtr request = drogon::HttpRequest::newHttpRequest();
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request->setMethod(drogon::HttpMethod::Get);
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request->setPath(path);
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// request->setCustomContentTypeString("Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8\nAccept-Language: en-US,en;q=0.5\n");
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bool done = false;
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http_client->sendRequest(request, [&done](ReqResult res, const HttpResponsePtr &resptr) {
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if (res != ReqResult::Ok) {
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RLOG_ERR("sendRequest: res != ReqResult::Ok!");
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done = true;
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return;
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}
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RLOG_MSG("Got response. Saving.");
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ss = new String(resptr->getBody().data());
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done = true;
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});
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while (!done) {
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// todo remove
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}
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}
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void download_posts(Database *db, const String &site) {
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setup_database(db);
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String url = Settings::get_singleton()->get_value(site + ".url");
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String port = Settings::get_singleton()->get_value(site + ".port");
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String first_url = Settings::get_singleton()->get_value(site + ".first_url");
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String last_url = get_last_url(db);
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// String url = "127.0.0.1";
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// String port = "http";
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// String first_url = "/";
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// String last_url = get_last_url(db);
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String full_site_url = port + "://" + url;
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String full_site_url_repl = full_site_url;
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if (full_site_url_repl.ends_with("/")) {
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full_site_url_repl.pop_back();
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}
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int wait_seconds_min = Settings::get_singleton()->get_value_int(site + ".wait_seconds_min", 10);
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int wait_seconds_max = Settings::get_singleton()->get_value_int(site + ".wait_seconds_max", 20);
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bool should_skip = true;
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if (last_url == "") {
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should_skip = false;
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last_url = first_url;
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}
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RLOG_MSG("Post downloading started for " + site + " | last url: " + last_url);
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bool done = false;
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while (!done) {
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RLOG_MSG("Sending query to: " + full_site_url + last_url);
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query_page(main_event_loop, full_site_url, last_url);
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if (ss) {
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HTMLParser p;
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p.parse(*ss);
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HTMLParserTag *article_tag = p.root->get_first("article");
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String extracted_data = "";
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String next_link;
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if (article_tag) {
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extracted_data = article_tag->to_string();
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} else {
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RLOG_WARN("Couldn't extract data!");
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}
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HTMLParserTag *n_link_tag = p.root->get_first("a", "rel", "next");
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if (n_link_tag) {
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next_link = n_link_tag->get_attribute_value("href");
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if (next_link == "") {
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RLOG_WARN("Couldn't extract link!");
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}
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} else {
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next_link = "";
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RLOG_WARN("Couldn't extract link tag!");
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}
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if (should_skip) {
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should_skip = false;
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RLOG_MSG("Continuing from last session, this page is already saved, skipping.");
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} else {
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save_page(db, last_url, *ss, extracted_data);
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}
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if (next_link == "") {
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done = true;
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} else {
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int wait_seconds = Math::rand(wait_seconds_min, wait_seconds_max);
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RLOG_MSG("Waiting for " + String::num(wait_seconds) + " seconds!");
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std::this_thread::sleep_for(std::chrono::duration<double, std::milli>(wait_seconds * 1000));
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last_url = next_link;
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if (last_url.starts_with(full_site_url_repl)) {
|
||||
last_url.replace(full_site_url_repl, "", 1);
|
||||
}
|
||||
}
|
||||
} else {
|
||||
done = true;
|
||||
}
|
||||
|
||||
delete ss;
|
||||
ss = nullptr;
|
||||
}
|
||||
}
|
||||
|
||||
int main(int argc, char **argv, char **envp) {
|
||||
PlatformInitializer::allocate_all();
|
||||
PlatformInitializer::arg_setup(argc, argv, envp);
|
||||
@ -251,12 +60,7 @@ int main(int argc, char **argv, char **envp) {
|
||||
bool download = Platform::get_singleton()->arg_parser.has_arg("-d");
|
||||
|
||||
if (download) {
|
||||
std::thread t([]() { main_event_loop = new trantor::EventLoop(); main_event_loop->loop(); delete main_event_loop; main_event_loop = nullptr; });
|
||||
|
||||
while (main_event_loop == nullptr) {
|
||||
// todo sleep
|
||||
}
|
||||
|
||||
Vector<Ref<WPDownloader> > downloaders;
|
||||
DatabaseManager *dbm = new DatabaseManager();
|
||||
|
||||
bool save_original_data = settings->get_value_bool("save_original_data");
|
||||
@ -272,14 +76,19 @@ int main(int argc, char **argv, char **envp) {
|
||||
Database *db = dbm->databases[index];
|
||||
db->connect(database_folder + s + ".sqlite");
|
||||
|
||||
download_posts(db, s);
|
||||
Ref<WPDownloader> d;
|
||||
d.instance();
|
||||
|
||||
d->setup(s, db);
|
||||
|
||||
//todo
|
||||
//downloaders.push_back(d);
|
||||
|
||||
d->run();
|
||||
}
|
||||
}
|
||||
|
||||
delete dbm;
|
||||
|
||||
main_event_loop->quit();
|
||||
t.join();
|
||||
} else {
|
||||
/*
|
||||
FileCache *file_cache = new FileCache(true);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user