Organic Maps sources as of 02.04.2025 (fad26bbf22ac3da75e01e62aa01e5c8e11861005)

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coding/url.cpp

@@ -0,0 +1,188 @@
+#include "coding/url.hpp"
+#include "coding/hex.hpp"
+
+#include "base/assert.hpp"
+#include "base/string_utils.hpp"
+
+
+namespace url
+{
+using namespace std;
+
+Url::Url(std::string const & url)
+{
+  if (!Parse(url))
+  {
+    ASSERT(m_scheme.empty() && m_host.empty() && m_path.empty() && !IsValid(), ());
+  }
+}
+
+Url Url::FromString(std::string const & url)
+{
+  bool const hasProtocol = url.starts_with("http://") || url.starts_with("https://");
+  return Url(hasProtocol ? url : "https://" + url);
+}
+
+bool Url::Parse(std::string const & url)
+{
+  // Get url scheme.
+  size_t start = url.find(':');
+  if (start == string::npos || start == 0)
+    return false;
+  m_scheme = url.substr(0, start);
+
+  // Skip slashes.
+  start = url.find_first_not_of('/', start + 1);
+  if (start == std::string::npos)
+    return true;
+
+  // Get host.
+  size_t end = url.find_first_of("/?#", start);
+  if (end == string::npos)
+  {
+    m_host = url.substr(start);
+    return true;
+  }
+  else
+    m_host = url.substr(start, end - start);
+
+  // Get path.
+  if (url[end] == '/')
+  {
+    // Skip slashes.
+    start = url.find_first_not_of('/', end);
+    if (start == std::string::npos)
+      return true;
+
+    end = url.find_first_of("?#", start);
+    if (end == string::npos)
+    {
+      m_path = url.substr(start);
+      return true;
+    }
+    else
+      m_path = url.substr(start, end - start);
+  }
+
+  // Parse query/fragment for keys and values.
+  for (start = end + 1; start < url.size();)
+  {
+    end = url.find_first_of("&#", start);
+    if (end == string::npos)
+      end = url.size();
+
+    // Skip empty keys.
+    if (end != start)
+    {
+      size_t const eq = url.find('=', start);
+
+      string key;
+      string value;
+      if (eq != string::npos && eq < end)
+      {
+        key = UrlDecode(url.substr(start, eq - start));
+        value = UrlDecode(url.substr(eq + 1, end - eq - 1));
+      }
+      else
+      {
+        key = UrlDecode(url.substr(start, end - start));
+      }
+
+      m_params.emplace_back(key, value);
+    }
+
+    start = end + 1;
+  }
+
+  return true;
+}
+
+string Join(string const & lhs, string const & rhs)
+{
+  if (lhs.empty())
+    return rhs;
+  if (rhs.empty())
+    return lhs;
+
+  if (lhs.back() == '/' && rhs.front() == '/')
+    return lhs + rhs.substr(1);
+
+  if (lhs.back() != '/' && rhs.front() != '/')
+    return lhs + '/' + rhs;
+
+  return lhs + rhs;
+}
+
+string Slug(string const & raw)
+{
+  size_t const count = raw.size();
+  string result;
+  result.reserve(count);
+
+  for (size_t i = 0; i < count; ++i)
+  {
+    char const c = raw[i];
+    if (c < '-' || c == '/' || (c > '9' && c < 'A') || (c > 'Z' && c < '_') ||
+        c == '`' || (c > 'z' && c < '~') || c > '~')
+    {
+      // No more than two dashes in a row.
+      size_t sz = result.length();
+      if (sz < 2 || result[sz - 2] != '-' || result[sz - 1] != '-')
+        result += '-';
+    }
+    else
+      result += raw[i];
+  }
+
+  return result;
+}
+
+string UrlEncode(string const & rawUrl)
+{
+  size_t const count = rawUrl.size();
+  string result;
+  result.reserve(count);
+
+  for (size_t i = 0; i < count; ++i)
+  {
+    char const c = rawUrl[i];
+    if (c < '-' || c == '/' || (c > '9' && c < 'A') || (c > 'Z' && c < '_') ||
+        c == '`' || (c > 'z' && c < '~') || c > '~')
+    {
+      result += '%';
+      result += NumToHex(c);
+    }
+    else
+      result += rawUrl[i];
+  }
+
+  return result;
+}
+
+string UrlDecode(string_view encodedUrl)
+{
+  size_t const count = encodedUrl.size();
+  string result;
+  result.reserve(count);
+
+  for (size_t i = 0; i < count; ++i)
+  {
+    if (encodedUrl[i] == '%')
+    {
+      result += FromHex(encodedUrl.substr(i + 1, 2));
+      i += 2;
+    }
+    else if (encodedUrl[i] == '+')
+    {
+      result += ' ';
+    }
+    else
+    {
+      result += encodedUrl[i];
+    }
+  }
+
+  return result;
+}
+
+}  // namespace url