1 #pragma once 2 3 #include "webroutes.hpp" 4 5 #include <app.hpp> 6 #include <boost/algorithm/string/replace.hpp> 7 #include <boost/container/flat_set.hpp> 8 #include <http_request.hpp> 9 #include <http_response.hpp> 10 #include <routing.hpp> 11 12 #include <filesystem> 13 #include <fstream> 14 #include <string> 15 16 namespace crow 17 { 18 namespace webassets 19 { 20 21 struct CmpStr 22 { 23 bool operator()(const char* a, const char* b) const 24 { 25 return std::strcmp(a, b) < 0; 26 } 27 }; 28 29 inline void requestRoutes(App& app) 30 { 31 constexpr static std::array<std::pair<const char*, const char*>, 17> 32 contentTypes{ 33 {{".css", "text/css;charset=UTF-8"}, 34 {".html", "text/html;charset=UTF-8"}, 35 {".js", "application/javascript;charset=UTF-8"}, 36 {".png", "image/png;charset=UTF-8"}, 37 {".woff", "application/x-font-woff"}, 38 {".woff2", "application/x-font-woff2"}, 39 {".gif", "image/gif"}, 40 {".ico", "image/x-icon"}, 41 {".ttf", "application/x-font-ttf"}, 42 {".svg", "image/svg+xml"}, 43 {".eot", "application/vnd.ms-fontobject"}, 44 {".xml", "application/xml"}, 45 {".json", "application/json"}, 46 {".jpg", "image/jpeg"}, 47 {".jpeg", "image/jpeg"}, 48 {".json", "application/json"}, 49 // dev tools don't care about map type, setting to json causes 50 // browser to show as text 51 // https://stackoverflow.com/questions/19911929/what-mime-type-should-i-use-for-javascript-source-map-files 52 {".map", "application/json"}}}; 53 54 std::filesystem::path rootpath{"/usr/share/www/"}; 55 std::filesystem::recursive_directory_iterator dirIter(rootpath); 56 // In certain cases, we might have both a gzipped version of the file AND a 57 // non-gzipped version. To avoid duplicated routes, we need to make sure we 58 // get the gzipped version first. Because the gzipped path should be longer 59 // than the non gzipped path, if we sort in descending order, we should be 60 // guaranteed to get the gzip version first. 61 std::vector<std::filesystem::directory_entry> paths( 62 std::filesystem::begin(dirIter), std::filesystem::end(dirIter)); 63 std::sort(paths.rbegin(), paths.rend()); 64 65 for (const std::filesystem::directory_entry& dir : paths) 66 { 67 const std::filesystem::path& absolutePath = dir.path(); 68 std::filesystem::path relativePath{ 69 absolutePath.string().substr(rootpath.string().size() - 1)}; 70 if (std::filesystem::is_directory(dir)) 71 { 72 // don't recurse into hidden directories or symlinks 73 if (boost::starts_with(dir.path().filename().string(), ".") || 74 std::filesystem::is_symlink(dir)) 75 { 76 dirIter.disable_recursion_pending(); 77 } 78 } 79 else if (std::filesystem::is_regular_file(dir)) 80 { 81 std::string extension = relativePath.extension(); 82 std::filesystem::path webpath = relativePath; 83 const char* contentEncoding = nullptr; 84 85 if (extension == ".gz") 86 { 87 webpath = webpath.replace_extension(""); 88 // Use the non-gzip version for determining content type 89 extension = webpath.extension().string(); 90 contentEncoding = "gzip"; 91 } 92 93 if (boost::starts_with(webpath.filename().string(), "index.")) 94 { 95 webpath = webpath.parent_path(); 96 if (webpath.string().size() == 0 || 97 webpath.string().back() != '/') 98 { 99 // insert the non-directory version of this path 100 webroutes::routes.insert(webpath); 101 webpath += "/"; 102 } 103 } 104 105 std::pair<boost::container::flat_set<std::string>::iterator, bool> 106 inserted = webroutes::routes.insert(webpath); 107 108 if (!inserted.second) 109 { 110 // Got a duplicated path. This is expected in certain 111 // situations 112 BMCWEB_LOG_DEBUG << "Got duplicated path " << webpath; 113 continue; 114 } 115 const char* contentType = nullptr; 116 117 for (const std::pair<const char*, const char*>& ext : contentTypes) 118 { 119 if (ext.first == nullptr || ext.second == nullptr) 120 { 121 continue; 122 } 123 if (extension == ext.first) 124 { 125 contentType = ext.second; 126 } 127 } 128 129 if (contentType == nullptr) 130 { 131 BMCWEB_LOG_ERROR << "Cannot determine content-type for " 132 << absolutePath << " with extension " 133 << extension; 134 } 135 136 app.routeDynamic(webpath)( 137 [absolutePath, contentType, 138 contentEncoding](const crow::Request&, crow::Response& res) { 139 if (contentType != nullptr) 140 { 141 res.addHeader("Content-Type", contentType); 142 } 143 144 if (contentEncoding != nullptr) 145 { 146 res.addHeader("Content-Encoding", contentEncoding); 147 } 148 149 // res.set_header("Cache-Control", "public, max-age=86400"); 150 std::ifstream inf(absolutePath); 151 if (!inf) 152 { 153 BMCWEB_LOG_DEBUG << "failed to read file"; 154 res.result( 155 boost::beast::http::status::internal_server_error); 156 res.end(); 157 return; 158 } 159 160 res.body() = {std::istreambuf_iterator<char>(inf), 161 std::istreambuf_iterator<char>()}; 162 res.end(); 163 }); 164 } 165 } 166 } 167 } // namespace webassets 168 } // namespace crow 169