From cdf8d103f1ed6a932eb30b589b578d23ca66a514 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Mon, 10 May 2021 18:49:44 +0200
Subject: Add downloader, fix room navigation lag

Fix bug where getting next page fails if there is no search bar
---
 src/NetUtils.cpp | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'src/NetUtils.cpp')

diff --git a/src/NetUtils.cpp b/src/NetUtils.cpp
index 3539d46..dc7c2d2 100644
--- a/src/NetUtils.cpp
+++ b/src/NetUtils.cpp
@@ -4,6 +4,7 @@
 #include <sstream>
 #include <iomanip>
 #include <assert.h>
+#include <string.h>
 #include <unordered_set>
 
 namespace QuickMedia {
@@ -1742,4 +1743,31 @@ namespace QuickMedia {
                 ++num_codepoints;
         }
     }
+
+    std::string header_extract_value(const std::string &header, const std::string &type) {
+        std::string result;
+        string_split(header, '\n', [&type, &result](const char *str, size_t size) {
+            while(size > 0 && (*str == ' ' || *str == '\t')) { ++str; --size; }
+            if(size < type.size() || strncasecmp(str, type.c_str(), type.size()) != 0 || size == type.size())
+                return true;
+
+            str += type.size();
+            size -= type.size();
+
+            const void *colon_ptr = memchr(str, ':', size);
+            if(!colon_ptr)
+                return true;
+
+            const size_t colon_offset = (const char*)colon_ptr - str;
+            str += (colon_offset + 1);
+            size -= (colon_offset + 1);
+
+            while(size > 0 && (*str == ' ' || *str == '\t')) { ++str; --size; }
+            while(size > 0 && (str[size - 1] == ' ' || str[size - 1] == '\t' || str[size - 1] == '\r' || str[size - 1] == '\n')) { --size; }
+
+            result.assign(str, size);
+            return false;
+        });
+        return result;
+    }
 }
\ No newline at end of file
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