From dd7f669c797d8bf844140001a094f87f28188351 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Sat, 27 Jun 2020 22:52:20 +0200
Subject: Fix search result broken if contains curly braces

---
 src/plugins/Youtube.cpp | 65 ++++++++++++++++++++++++++-----------------------
 1 file changed, 35 insertions(+), 30 deletions(-)

(limited to 'src/plugins/Youtube.cpp')

diff --git a/src/plugins/Youtube.cpp b/src/plugins/Youtube.cpp
index 3d7e4fb..c82fdbe 100644
--- a/src/plugins/Youtube.cpp
+++ b/src/plugins/Youtube.cpp
@@ -25,6 +25,37 @@ namespace QuickMedia {
         }
     }
 
+    static size_t find_end_of_json(const std::string &website_data, size_t data_start) {
+        int brace_count = 0;
+        char string_char = '\0';
+        bool escape = false;
+        for(size_t i = data_start; i < website_data.size(); ++i) {
+            char c = website_data[i];
+            if(c == '{' && string_char == '\0') {
+                escape = false;
+                ++brace_count;
+            } else if(c == '}' && string_char == '\0') {
+                escape = false;
+                --brace_count;
+                if(brace_count == 0) {
+                    return i + 1;
+                }
+            } else if(c == '"' || c == '\'') {
+                if(string_char == '\0') {
+                    string_char = c;
+                } else if(c == string_char && !escape) {
+                    string_char = '\0';
+                }
+                escape = false;
+            } else if(c == '\\' && string_char) {
+                escape = !escape;
+            } else if(string_char) {
+                escape = false;
+            }
+        }
+        return std::string::npos;
+    }
+
     // TODO: Speed this up by using string.find instead of parsing html
     SuggestionResult Youtube::update_search_suggestions(const std::string &text, BodyItems &result_items) {
         // Keep this for backup. This is using search suggestion the same way youtube does it, but the results
@@ -138,22 +169,9 @@ namespace QuickMedia {
             return SuggestionResult::ERR;
         
         data_start = data_start + 26;
-        size_t data_end = 0;
-        int brace_count = 0;
-        for(size_t i = data_start; i < website_data.size(); ++i) {
-            char c = website_data[i];
-            if(c == '{')
-                ++brace_count;
-            else if(c == '}') {
-                --brace_count;
-                if(brace_count == 0) {
-                    data_end = i + 1;
-                    break;
-                }
-            }
-        }
+        size_t data_end = find_end_of_json(website_data, data_start);
 
-        if(data_end == 0)
+        if(data_end == std::string::npos)
             return SuggestionResult::ERR;
 
         Json::Value json_root;
@@ -389,22 +407,9 @@ namespace QuickMedia {
             return result_items;
         
         data_start = data_start + 26;
-        size_t data_end = 0;
-        int brace_count = 0;
-        for(size_t i = data_start; i < website_data.size(); ++i) {
-            char c = website_data[i];
-            if(c == '{')
-                ++brace_count;
-            else if(c == '}') {
-                --brace_count;
-                if(brace_count == 0) {
-                    data_end = i + 1;
-                    break;
-                }
-            }
-        }
+        size_t data_end = find_end_of_json(website_data, data_start);
 
-        if(data_end == 0)
+        if(data_end == std::string::npos)
             return result_items;
 
         Json::Value json_root;
-- 
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