mirror of
https://github.com/tfussell/xlnt.git
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519 lines
17 KiB
C++
519 lines
17 KiB
C++
#pragma once
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#include <pugixml.hpp>
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#include <sstream>
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#include <helpers/path_helper.hpp>
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#include <xlnt/packaging/manifest.hpp>
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class xml_helper
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{
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public:
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enum class difference_type
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{
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names_differ,
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missing_attribute,
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attribute_values_differ,
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missing_text,
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text_values_differ,
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missing_child,
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child_order_differs,
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equivalent,
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};
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struct comparison_result
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{
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difference_type difference;
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std::string value_left;
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std::string value_right;
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operator bool() const
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{
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return difference == difference_type::equivalent;
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}
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};
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static bool compare_content_types(const pugi::xml_document &left, const pugi::xml_document &right)
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{
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auto left_types_node = left.child("Types");
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auto right_types_node = right.child("Types");
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if (!left_types_node || !right_types_node)
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{
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return false;
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}
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auto left_children = left_types_node.children();
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auto left_length = std::distance(left_children.begin(), left_children.end());
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auto right_children = right_types_node.children();
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auto right_length = std::distance(right_children.begin(), right_children.end());
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if (left_length != right_length)
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{
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return false;
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}
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for (const auto left_child : left_children)
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{
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std::string associated_attribute_name;
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if (std::string(left_child.name()) == "Default")
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{
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associated_attribute_name = "Extension";
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}
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else if (std::string(left_child.name()) == "Override")
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{
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associated_attribute_name = "PartName";
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}
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else
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{
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throw std::runtime_error("invalid xml");
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}
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std::string left_attribute_value(left_child.attribute(associated_attribute_name.c_str()).value());
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pugi::xml_node matching_right_child;
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for (const auto right_child : right_types_node.children(left_child.name()))
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{
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std::string right_attribute_value(right_child.attribute(associated_attribute_name.c_str()).value());
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if (left_attribute_value == right_attribute_value)
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{
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matching_right_child = right_child;
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break;
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}
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}
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if (!matching_right_child
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|| !left_child.attribute("ContentType")
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|| !matching_right_child.attribute("ContentType"))
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{
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return false;
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}
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std::string left_child_type(left_child.attribute("ContentType").value());
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std::string right_child_type(matching_right_child.attribute("ContentType").value());
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if (left_child_type != right_child_type)
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{
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return false;
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}
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}
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return true;
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}
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static bool compare_relationships_xml(const pugi::xml_document &left, const pugi::xml_document &right)
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{
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auto left_relationships_node = left.child("Relationships");
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auto right_relationships_node = right.child("Relationships");
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if (!left_relationships_node || !right_relationships_node)
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{
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return false;
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}
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auto left_children = left_relationships_node.children();
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auto left_length = std::distance(left_children.begin(), left_children.end());
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auto right_children = right_relationships_node.children();
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auto right_length = std::distance(right_children.begin(), right_children.end());
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if (left_length != right_length)
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{
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return false;
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}
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for (const auto left_child : left_children)
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{
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std::string left_rel_id(left_child.attribute("Id").value());
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pugi::xml_node matching_right_child;
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for (const auto right_child : right_children)
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{
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std::string right_rel_id(right_child.attribute("Id").value());
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if (left_rel_id == right_rel_id)
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{
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matching_right_child = right_child;
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break;
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}
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}
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if (!matching_right_child
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|| !left_child.attribute("Type")
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|| !left_child.attribute("Target")
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|| !matching_right_child.attribute("Type")
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|| !matching_right_child.attribute("Target"))
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{
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return false;
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}
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if ((std::string(left_child.attribute("Type").value())
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!= std::string(left_child.attribute("Type").value()))
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|| (std::string(left_child.attribute("Target").value())
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!= std::string(left_child.attribute("Target").value())))
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{
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return false;
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}
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}
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return true;
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}
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static bool compare_theme_xml(const pugi::xml_document &left, const pugi::xml_document &right)
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{
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return compare_xml_exact(left, right);
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}
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static bool compare_styles_xml(const pugi::xml_document &left, const pugi::xml_document &right)
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{
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return compare_xml_exact(left, right);
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}
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static bool compare_workbook_xml(const pugi::xml_document &left, const pugi::xml_document &right)
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{
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return compare_xml_exact(left, right);
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}
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static bool compare_worksheet_xml(const pugi::xml_document &left, const pugi::xml_document &right)
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{
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return compare_xml_exact(left, right);
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}
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static bool compare_core_properties_xml(const pugi::xml_document &left, const pugi::xml_document &right)
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{
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return compare_xml_exact(left, right);
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}
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static bool compare_extended_properties_xml(const pugi::xml_document &left, const pugi::xml_document &right)
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{
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return compare_xml_exact(left, right);
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}
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static bool compare_files(const std::string &left,
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const std::string &right, const std::string &content_type)
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{
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auto is_xml = (content_type.substr(0, 12) == "application/"
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&& content_type.substr(content_type.size() - 4) == "+xml")
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|| content_type == "application/xml"
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|| content_type == "[Content_Types].xml";
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if (is_xml)
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{
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pugi::xml_document left_document;
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left_document.load(left.c_str());
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pugi::xml_document right_document;
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right_document.load(right.c_str());
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if (content_type == "[Content_Types].xml")
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{
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return compare_content_types(left_document, right_document);
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}
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else if (content_type == "application/vnd.openxmlformats-package.relationships+xml")
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{
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return compare_relationships_xml(left_document, right_document);
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}
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else if (content_type == "application/vnd.openxmlformats-officedocument.theme+xml")
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{
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return compare_theme_xml(left_document, right_document);
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}
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else if (content_type == "application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml")
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{
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return compare_styles_xml(left_document, right_document);
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}
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else if (content_type == "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml")
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{
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return compare_workbook_xml(left_document, right_document);
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}
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else if (content_type == "application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml")
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{
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return compare_worksheet_xml(left_document, right_document);
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}
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else if (content_type == "application/vnd.openxmlformats-package.core-properties+xml")
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{
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return compare_core_properties_xml(left_document, right_document);
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}
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else if (content_type == "application/vnd.openxmlformats-officedocument.extended-properties+xml")
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{
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return compare_extended_properties_xml(left_document, right_document);
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}
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return compare_xml_exact(left_document, right_document);
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}
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return left == right;
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}
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static bool compare_xml_exact(const pugi::xml_document &left, const pugi::xml_document &right)
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{
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auto result = compare_xml_nodes(left, right);
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if (!result)
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{
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std::cout << "documents don't match" << std::endl;
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std::cout << "left:" << std::endl;
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left.save(std::cout);
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std::cout << std::endl;
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std::cout << "right:" << std::endl;
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right.save(std::cout);
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std::cout << std::endl;
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return false;
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}
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return true;
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}
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static bool string_matches_workbook_part(const std::string &expected,
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xlnt::workbook &wb, const xlnt::path &part, const std::string &content_type)
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{
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std::vector<std::uint8_t> bytes;
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wb.save(bytes);
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xlnt::zip_file archive;
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archive.load(bytes);
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return string_matches_archive_member(expected, archive, part, content_type);
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}
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static bool file_matches_workbook_part(const xlnt::path &expected,
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xlnt::workbook &wb, const xlnt::path &part, const std::string &content_type)
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{
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std::vector<std::uint8_t> bytes;
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wb.save(bytes);
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xlnt::zip_file archive;
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archive.load(bytes);
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return file_matches_archive_member(expected, archive, part, content_type);
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}
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static bool string_matches_archive_member(const std::string &expected,
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xlnt::zip_file &archive,
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const xlnt::path &member,
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const std::string &content_type)
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{
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return compare_files(expected, archive.read(member), content_type);
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}
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static bool file_matches_archive_member(const xlnt::path &file,
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xlnt::zip_file &archive,
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const xlnt::path &member,
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const std::string &content_type)
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{
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if (!archive.has_file(member)) return false;
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return compare_files(file.read_contents(), archive.read(member), content_type);
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}
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static bool file_matches_document(const xlnt::path &expected,
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const pugi::xml_document &observed, const std::string &content_type)
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{
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return string_matches_document(expected.read_contents(), observed, content_type);
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}
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static bool string_matches_document(const std::string &string,
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const pugi::xml_document &document, const std::string &content_type)
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{
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std::ostringstream ss;
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document.save(ss);
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return compare_files(string, ss.str(), content_type);
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}
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static bool xlsx_archives_match(xlnt::zip_file &left, xlnt::zip_file &right)
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{
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const auto left_info = left.infolist();
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const auto right_info = right.infolist();
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if (left_info.size() != right_info.size())
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{
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std::cout << "left has a different number of files than right" << std::endl;
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std::cout << "left has: ";
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for (auto &info : left_info)
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{
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std::cout << info.filename.string() << ", ";
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}
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std::cout << std::endl;
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std::cout << "right has: ";
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for (auto &info : right_info)
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{
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std::cout << info.filename.string() << ", ";
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}
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std::cout << std::endl;
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}
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bool match = true;
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std::vector<std::uint8_t> buffer;
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left.save(buffer);
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xlnt::workbook left_workbook;
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left_workbook.load(buffer);
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buffer.clear();
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right.save(buffer);
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xlnt::workbook right_workbook;
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right_workbook.load(buffer);
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auto &left_manifest = left_workbook.get_manifest();
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auto &right_manifest = right_workbook.get_manifest();
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for (auto left_member : left_info)
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{
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if (!right.has_file(left_member))
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{
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match = false;
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std::cout << "right is missing file: " << left_member.filename.string() << std::endl;
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continue;
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}
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auto left_member_contents = left.read(left_member);
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auto right_member_contents = right.read(left_member.filename);
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std::string left_content_type, right_content_type;
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if (left_member.filename.string() != "[Content_Types].xml")
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{
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left_content_type = left_manifest.get_content_type(xlnt::path(left_member.filename.string()));
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right_content_type = right_manifest.get_content_type(xlnt::path(left_member.filename.string()));
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}
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else
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{
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left_content_type = right_content_type = "[Content_Types].xml";
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}
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if (left_content_type != right_content_type)
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{
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std::cout << "content types differ: "
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<< left_member.filename.string()
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<< " "
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<< left_content_type
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<< " "
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<< right_content_type
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<< std::endl;
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match = false;
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}
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else if (!compare_files(left_member_contents, right_member_contents, left_content_type))
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{
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std::cout << left_member.filename.string() << std::endl;
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match = false;
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}
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}
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return match;
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}
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static comparison_result compare_xml_nodes(const pugi::xml_node &left, const pugi::xml_node &right)
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{
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std::string left_name(left.name());
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std::string right_name(right.name());
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if(left_name != right_name)
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{
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return {difference_type::names_differ, left_name, right_name};
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}
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for(const auto &left_attribute : left.attributes())
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{
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std::string attribute_name(left_attribute.name());
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auto right_attribute = right.attribute(attribute_name.c_str());
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// pugixml doesn't handle namespaces correctly
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bool special_exception = left_name == "mc:AlternateContent"
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&& attribute_name == "xmlns:mc";
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if(!right_attribute && !special_exception)
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{
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return {difference_type::missing_attribute, attribute_name, "((empty))"};
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}
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std::string left_attribute_value(left_attribute.value());
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std::string right_attribute_value(right_attribute.value());
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if(left_attribute_value != right_attribute_value && !special_exception)
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{
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return {difference_type::attribute_values_differ, left_attribute_value, right_attribute_value};
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}
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}
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for(const auto &right_attribute : right.attributes())
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{
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std::string attribute_name(right_attribute.name());
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auto left_attribute = left.attribute(attribute_name.c_str());
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// pugixml doesn't handle namespaces correctly
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bool special_exception = left_name == "mc:AlternateContent"
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&& attribute_name == "xmlns:mc";
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if(!left_attribute && !special_exception)
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{
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return {difference_type::missing_attribute, "((empty))", attribute_name};
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}
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std::string left_attribute_value(left_attribute.value());
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std::string right_attribute_value(right_attribute.value());
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if(left_attribute_value != right_attribute_value && !special_exception)
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{
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return {difference_type::attribute_values_differ, left_attribute_value, right_attribute_value};
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}
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}
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if(left.text())
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{
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std::string left_text(left.text().get());
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if(!right.text())
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{
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return {difference_type::missing_text, left_text, "((empty))"};
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}
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std::string right_text(right.text().get());
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if(left_text != right_text)
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{
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return {difference_type::text_values_differ, left_text, right_text};
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}
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}
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else if(right.text())
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{
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return {difference_type::text_values_differ, "((empty))", right.text().get()};
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}
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auto right_children = right.children();
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auto right_child_iter = right_children.begin();
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for(auto left_child : left.children())
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{
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std::string left_child_name(left_child.name());
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if(right_child_iter == right_children.end())
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{
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return {difference_type::child_order_differs, left_child_name, "((end))"};
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}
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auto right_child = *right_child_iter;
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right_child_iter++;
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auto child_comparison_result = compare_xml_nodes(left_child, right_child);
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if(!child_comparison_result)
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{
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return child_comparison_result;
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}
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}
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if(right_child_iter != right_children.end())
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{
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return {difference_type::child_order_differs, "((end))", right_child_iter->name()};
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}
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return {difference_type::equivalent, "", ""};
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}
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};
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