Add ProjectUrl class

Author: adazem009

src/internal/CMakeLists.txt

@@ -6,4 +6,6 @@ target_sources(scratchcpp
     reader_common.h
     zipreader.cpp
     zipreader.h
+    projecturl.cpp
+    projecturl.h
 )

src/internal/projecturl.cpp

@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: Apache-2.0
+
+#include <vector>
+#include <sstream>
+#include <algorithm>
+
+#include "projecturl.h"
+
+using namespace libscratchcpp;
+
+static const std::string PROJECT_SITE = "scratch.mit.edu";
+static const std::string PROJECT_SUBSITE = "projects";
+
+ProjectUrl::ProjectUrl(const std::string &url)
+{
+    std::vector<std::string> parts;
+    std::istringstream stream(url);
+    std::string str;
+
+    while (std::getline(stream, str, '/'))
+        parts.push_back(str);
+
+    if (parts.empty())
+        return;
+
+    // Remove empty parts
+    parts.erase(std::remove(parts.begin(), parts.end(), ""), parts.end());
+
+    // Remove "http:" or "https:"
+    while (!parts.empty() && ((parts.front() == "http:") || (parts.front() == "https:")))
+        parts.erase(parts.begin());
+
+    // scratch.mit.edu/projects/(id)
+    if (parts.size() != 3)
+        return;
+
+    m_isProjectUrl = ((parts[0] == PROJECT_SITE) && (parts[1] == PROJECT_SUBSITE));
+    m_projectId = parts[2];
+}
+
+bool ProjectUrl::isProjectUrl() const
+{
+    return m_isProjectUrl;
+}
+
+const std::string &ProjectUrl::projectId() const
+{
+    return m_projectId;
+}

src/internal/projecturl.h

@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: Apache-2.0
+
+#pragma once
+
+#include <string>
+
+namespace libscratchcpp
+{
+
+class ProjectUrl
+{
+    public:
+        ProjectUrl(const std::string &url);
+
+        bool isProjectUrl() const;
+        const std::string &projectId() const;
+
+    private:
+        bool m_isProjectUrl = false;
+        std::string m_projectId;
+};
+
+} // namespace libscratchcpp

test/CMakeLists.txt

@@ -33,3 +33,4 @@ add_subdirectory(timer)
 add_subdirectory(randomgenerator)
 add_subdirectory(imageformats)
 add_subdirectory(rect)
+add_subdirectory(network)

test/network/CMakeLists.txt

@@ -0,0 +1,13 @@
+# projecturl_test
+add_executable(
+  projecturl_test
+  projecturl_test.cpp
+)
+
+target_link_libraries(
+  projecturl_test
+  GTest::gtest_main
+  scratchcpp
+)
+
+gtest_discover_tests(projecturl_test)

test/network/projecturl_test.cpp

@@ -0,0 +1,62 @@
+#include <internal/projecturl.h>
+
+#include "../common.h"
+
+using namespace libscratchcpp;
+
+TEST(ProjectUrlTest, Parse)
+{
+    {
+        ProjectUrl url("");
+        ASSERT_FALSE(url.isProjectUrl());
+        ASSERT_TRUE(url.projectId().empty());
+    }
+
+    {
+        ProjectUrl url("scratch.mit.edu/projects/886166351");
+        ASSERT_TRUE(url.isProjectUrl());
+        ASSERT_EQ(url.projectId(), "886166351");
+    }
+
+    {
+        ProjectUrl url("/scratch.mit.edu/projects/886166351");
+        ASSERT_TRUE(url.isProjectUrl());
+        ASSERT_EQ(url.projectId(), "886166351");
+    }
+
+    {
+        ProjectUrl url("//scratch.mit.edu/projects/886166351/");
+        ASSERT_TRUE(url.isProjectUrl());
+        ASSERT_EQ(url.projectId(), "886166351");
+    }
+
+    {
+        ProjectUrl url("https://scratch.mit.edu/projects/886166351");
+        ASSERT_TRUE(url.isProjectUrl());
+        ASSERT_EQ(url.projectId(), "886166351");
+    }
+
+    {
+        ProjectUrl url("https:///http:/scratch.mit.edu//projects/886166351/");
+        ASSERT_TRUE(url.isProjectUrl());
+        ASSERT_EQ(url.projectId(), "886166351");
+    }
+
+    {
+        ProjectUrl url("http://scratch.mit.edu/projects/886166351");
+        ASSERT_TRUE(url.isProjectUrl());
+        ASSERT_EQ(url.projectId(), "886166351");
+    }
+
+    {
+        ProjectUrl url("https:/scratch.mit.edu/projects/886166351");
+        ASSERT_TRUE(url.isProjectUrl());
+        ASSERT_EQ(url.projectId(), "886166351");
+    }
+
+    {
+        ProjectUrl url("https://scratch.mit.edu/projects/test/886166351");
+        ASSERT_FALSE(url.isProjectUrl());
+        ASSERT_TRUE(url.projectId().empty());
+    }
+}