Ph: fix related videos images and titles missing or incorrect. Use message type to open in video player instead of using http head

1 files changed, 112 insertions, 99 deletions

diff --git a/src/plugins/Pornhub.cpp b/src/plugins/Pornhub.cpp
index e8df9d7..b063a32 100644
--- a/src/plugins/Pornhub.cpp
+++ b/src/plugins/Pornhub.cpp
@@ -1,7 +1,9 @@
 #include "../../plugins/Pornhub.hpp"
 #include "../../include/StringUtils.hpp"
 #include "../../include/NetUtils.hpp"
-#include <quickmedia/HtmlSearch.h>
+extern "C" {
+#include <HtmlParser.h>
+}
 #include <string.h>
 
 namespace QuickMedia {
@@ -9,64 +11,124 @@ namespace QuickMedia {
         return strncmp(str, begin_with, strlen(begin_with)) == 0;
     }
 
-    static bool contains(const char *str, const char *substr) {
-        return strstr(str, substr);
+    // TODO: Optimize by using HtmlStringView instead of std::string
+    struct HtmlElement {
+        std::string tag_name;
+        std::map<std::string, std::string> attributes;
+        std::vector<HtmlElement*> children;
+        HtmlElement *parent = nullptr; // ref
+    };
+
+    static void html_cleanup(HtmlElement *html_element_root) {
+        for(HtmlElement *child_html_element : html_element_root->children) {
+            html_cleanup(child_html_element);
+        }
+        delete html_element_root;
     }
 
-    SearchResult PornhubSearchPage::search(const std::string &str, BodyItems &result_items) {
-        std::string url = "https://www.pornhub.com/video/search?search=";
-        url += url_param_encode(str);
+    static const std::string& html_get_attribute_or(HtmlElement *html_element, const std::string &attr_key, const std::string &default_value) {
+        auto it = html_element->attributes.find(attr_key);
+        if(it != html_element->attributes.end())
+            return it->second;
+        else
+            return default_value;
+    }
+
+    struct HtmlParseUserdata {
+        HtmlElement *current_html_element;
+    };
+
+    static void html_page_callback(HtmlParser *html_parser, HtmlParseType parse_type, void *userdata) {
+        HtmlParseUserdata *parse_userdata = (HtmlParseUserdata*)userdata;
+        if(parse_type == HTML_PARSE_TAG_START) {
+            auto new_html_element = new HtmlElement();
+            new_html_element->tag_name.assign(html_parser->tag_name.data, html_parser->tag_name.size);
+            new_html_element->parent = parse_userdata->current_html_element;
+
+            parse_userdata->current_html_element->children.push_back(new_html_element);
+            parse_userdata->current_html_element = new_html_element;
+        } else if(parse_type == HTML_PARSE_TAG_END) {
+            if(parse_userdata->current_html_element->parent)
+                parse_userdata->current_html_element = parse_userdata->current_html_element->parent;
+        } else if(parse_type == HTML_PARSE_ATTRIBUTE) {
+            std::string attr_key(html_parser->attribute_key.data, html_parser->attribute_key.size);
+            std::string attr_value(html_parser->attribute_value.data, html_parser->attribute_value.size);
+            parse_userdata->current_html_element->attributes.insert(std::make_pair(std::move(attr_key), std::move(attr_value)));
+        }
+    }
+
+    static HtmlElement* html_parse(char *source, size_t size) {
+        HtmlElement *html_element_root = new HtmlElement();
+        HtmlParseUserdata parse_userdata;
+        parse_userdata.current_html_element = html_element_root;
+        HtmlParser html_parser;
+        html_parser_init(&html_parser, source, size, html_page_callback, &parse_userdata);
+        html_parser_parse(&html_parser);
+        html_parser_deinit(&html_parser);
+        return html_element_root;
+    }
+
+    using HtmlFindTagsCallback = std::function<void(HtmlElement *html_element)>;
+    static void html_find_tags_with_class(HtmlElement *html_element, const std::string &tag_name, const std::string &class_value, const HtmlFindTagsCallback &callback) {
+        if(html_element->tag_name == tag_name) {
+            if(html_get_attribute_or(html_element, "class", "") == class_value)
+                callback(html_element);
+        }
+        for(HtmlElement *child_html_element : html_element->children) {
+            html_find_tags_with_class(child_html_element, tag_name, class_value, callback);
+        }
+    }
+
+    static void html_find_tags(HtmlElement *html_element, const std::string &tag_name, const HtmlFindTagsCallback &callback) {
+        if(html_element->tag_name == tag_name)
+            callback(html_element);
+        for(HtmlElement *child_html_element : html_element->children) {
+            html_find_tags(child_html_element, tag_name, callback);
+        }
+    }
 
+    static SearchResult get_videos_in_page(const std::string &url, bool use_tor, BodyItems &result_items) {
         std::string website_data;
-        if(download_to_string(url, website_data, {}, is_tor_enabled()) != DownloadResult::OK)
+        if(download_to_string(url, website_data, {}, use_tor) != DownloadResult::OK)
             return SearchResult::NET_ERR;
 
-        struct ItemData {
-            BodyItems *result_items;
-            size_t index;
-        };
-        ItemData item_data = { &result_items, 0 };
-
-        QuickMediaHtmlSearch html_search;
-        int result = quickmedia_html_search_init(&html_search, website_data.c_str());
-        if(result != 0)
-            goto cleanup;
-
-        result = quickmedia_html_find_nodes_xpath(&html_search, "//div[class='phimage']//a",
-            [](QuickMediaHtmlNode *node, void *userdata) {
-                auto *result_items = (BodyItems*)userdata;
-                const char *href = quickmedia_html_node_get_attribute_value(node, "href");
-                const char *title = quickmedia_html_node_get_attribute_value(node, "title");
-                if(href && title && begins_with(href, "/view_video.php?viewkey")) {
-                    auto item = BodyItem::create(strip(title));
-                    item->url = std::string("https://www.pornhub.com") + href;
-                    result_items->push_back(std::move(item));
-                }
-            }, &result_items);
-        if(result != 0)
-            goto cleanup;
-
-        result = quickmedia_html_find_nodes_xpath(&html_search, "//div[class='phimage']//img",
-            [](QuickMediaHtmlNode *node, void *userdata) {
-                ItemData *item_data = (ItemData*)userdata;
-                if(item_data->index >= item_data->result_items->size())
-                    return;
-
-                const char *data_src = quickmedia_html_node_get_attribute_value(node, "data-src");
-                if(data_src && contains(data_src, "phncdn.com/videos")) {
-                    (*item_data->result_items)[item_data->index]->thumbnail_url = data_src;
-                    ++item_data->index;
-                }
-            }, &item_data);
+        HtmlElement *html_root = html_parse(website_data.data(), website_data.size());
+        html_find_tags_with_class(html_root, "div", "phimage", [&result_items](HtmlElement *html_element) {
+            auto it = html_element->attributes.find("data-entrycode");
+            if(it == html_element->attributes.end() || it->second != "VidPg-premVid-videoPage") {
+                html_find_tags(html_element, "a", [&result_items](HtmlElement *html_element) {
+                    const std::string &href = html_get_attribute_or(html_element, "href", "");
+                    const std::string &title = html_get_attribute_or(html_element, "title", "");
+                    if(!href.empty() && !title.empty() && begins_with(href.c_str(), "/view_video.php?viewkey")) {
+                        std::string title_fixed = strip(title);
+                        html_unescape_sequences(title_fixed);
+                        auto item = BodyItem::create(std::move(title_fixed));
+                        item->url = std::string("https://www.pornhub.com") + href;
+                        item->thumbnail_size = sf::Vector2i(192, 108);
+                        result_items.push_back(std::move(item));
+
+                        html_find_tags(html_element, "img", [&result_items](HtmlElement *html_element) {
+                            const std::string &src = html_get_attribute_or(html_element, "data-src", "");
+                            if(src.find("phncdn.com/videos") != std::string::npos)
+                                result_items.back()->thumbnail_url = src;
+                        });
+                    }
+                });
+            }
+        });
+        html_cleanup(html_root);
 
         // Attempt to skip promoted videos (that are not related to the search term)
-        if(result_items.size() >= 4) {
+        if(result_items.size() >= 4)
             result_items.erase(result_items.begin(), result_items.begin() + 4);
-        }
 
-        cleanup:
-        quickmedia_html_search_deinit(&html_search);
-        return result == 0 ? SearchResult::OK : SearchResult::ERR;
+        return SearchResult::OK;
+    }
+
+    SearchResult PornhubSearchPage::search(const std::string &str, BodyItems &result_items) {
+        std::string url = "https://www.pornhub.com/video/search?search=";
+        url += url_param_encode(str);
+        return get_videos_in_page(url, is_tor_enabled(), result_items);
     }
 
     PluginResult PornhubSearchPage::submit(const std::string &title, const std::string &url, std::vector<Tab> &result_tabs) {
@@ -78,56 +140,7 @@ namespace QuickMedia {
 
     BodyItems PornhubVideoPage::get_related_media(const std::string &url) {
         BodyItems result_items;
-
-        std::string website_data;
-        if(download_to_string(url, website_data, {}, is_tor_enabled()) != DownloadResult::OK)
-            return result_items;
-
-        struct ItemData {
-            BodyItems *result_items;
-            size_t index;
-        };
-        ItemData item_data = { &result_items, 0 };
-
-        QuickMediaHtmlSearch html_search;
-        int result = quickmedia_html_search_init(&html_search, website_data.c_str());
-        if(result != 0)
-            goto cleanup;
-
-        result = quickmedia_html_find_nodes_xpath(&html_search, "//div[class='phimage']//a",
-            [](QuickMediaHtmlNode *node, void *userdata) {
-                auto *result_items = (BodyItems*)userdata;
-                const char *href = quickmedia_html_node_get_attribute_value(node, "href");
-                const char *title = quickmedia_html_node_get_attribute_value(node, "title");
-                if(href && title && begins_with(href, "/view_video.php?viewkey")) {
-                    auto item = BodyItem::create(strip(title));
-                    item->url = std::string("https://www.pornhub.com") + href;
-                    result_items->push_back(std::move(item));
-                }
-            }, &result_items);
-        if(result != 0)
-            goto cleanup;
-
-        result = quickmedia_html_find_nodes_xpath(&html_search, "//div[class='phimage']//img",
-            [](QuickMediaHtmlNode *node, void *userdata) {
-                ItemData *item_data = (ItemData*)userdata;
-                if(item_data->index >= item_data->result_items->size())
-                    return;
-
-                const char *src = quickmedia_html_node_get_attribute_value(node, "src");
-                if(src && contains(src, "phncdn.com/videos")) {
-                    (*item_data->result_items)[item_data->index]->thumbnail_url = src;
-                    ++item_data->index;
-                }
-            }, &item_data);
-
-        // Attempt to skip promoted videos (that are not related to the search term)
-        if(result_items.size() >= 4) {
-            result_items.erase(result_items.begin(), result_items.begin() + 4);
-        }
-
-        cleanup:
-        quickmedia_html_search_deinit(&html_search);
+        get_videos_in_page(url, is_tor_enabled(), result_items);
         return result_items;
     }
 }
\ No newline at end of file