504 lines
18 KiB
C++
504 lines
18 KiB
C++
#include <fstream>
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#include <iostream>
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#include <cstring>
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#include <string>
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#include <vector>
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#include <filesystem>
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#include "src/tesseswebserverhttputils.hpp"
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void byte_array_f(std::string& s,FILE* f)
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{
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s.push_back('{');
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uint8_t buffer[1024];
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size_t read = 0;
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bool first=true;
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do {
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read=fread(buffer,1,1024,f);
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for(size_t i = 0;i<read;i++)
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{
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if(!first) s.push_back(',');
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s.append("0x");
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uint8_t high = (uint8_t)((buffer[i] >> 4) & 0x0F);
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uint8_t low = (uint8_t)(buffer[i] & 0x0F);
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s.push_back(HttpUtils::nibble_to_hex_char(high));
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s.push_back(HttpUtils::nibble_to_hex_char(low));
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first=false;
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}
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} while(read > 0);
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s.push_back('}');
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}
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void byte_array_a(std::string& s,uint8_t* buffer,size_t read)
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{
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s.push_back('{');
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bool first=true;
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for(size_t i = 0;i<read;i++)
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{
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if(!first) s.push_back(',');
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s.append("0x");
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uint8_t high = (uint8_t)((buffer[i] >> 4) & 0x0F);
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uint8_t low = (uint8_t)(buffer[i] & 0x0F);
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s.push_back(HttpUtils::nibble_to_hex_char(high));
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s.push_back(HttpUtils::nibble_to_hex_char(low));
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first=false;
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}
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s.push_back('}');
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}
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class Resource {
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public:
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std::string mime;
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std::string data;
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std::string path;
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bool twss;
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};
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void follow_symlink(std::filesystem::path& p)
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{
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while(std::filesystem::is_symlink(p))
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{
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p = std::filesystem::read_symlink(p);
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}
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}
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void get_files(std::vector<Resource>& resources, std::vector<std::string>& indexes, bool enableListing, std::filesystem::path srcDir, std::string httpDir)
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{
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std::filesystem::path index;
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bool useIndexFile=false;
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for(auto item : indexes)
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{
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std::filesystem::path myIndex = srcDir / item;
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follow_symlink(myIndex);
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if(std::filesystem::is_regular_file(myIndex))
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{
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index = myIndex;
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useIndexFile=true;
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break;
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}
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}
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bool mustList=false;
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std::vector<std::pair<std::string,bool>> paths;
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if(useIndexFile)
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{
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Resource res;
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res.path = httpDir;
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res.twss = index.extension() == ".twss";
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FILE* f = fopen(index.c_str(),"rb");
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byte_array_f(res.data,f);
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fclose(f);
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res.mime = HttpUtils::MimeType(index);
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resources.push_back(res);
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if(!httpDir.ends_with('/'))
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{
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res.path = httpDir + "/";
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resources.push_back(res);
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}
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}
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else if(enableListing)
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{
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mustList=true;
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}
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for(auto item : std::filesystem::directory_iterator(srcDir))
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{
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auto ent = item.path();
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follow_symlink(ent);
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if(std::filesystem::is_directory(ent))
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{
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get_files(resources, indexes, enableListing,ent,httpDir.ends_with('/') ? (httpDir + item.path().filename().string()) : (httpDir + "/" + item.path().filename().string()));
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if(mustList)
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paths.push_back(std::pair<std::string,bool>(item.path().filename().string(),true));
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}
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if(std::filesystem::is_regular_file(ent))
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{
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Resource res;
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res.path = httpDir.ends_with('/') ? (httpDir + item.path().filename().string()) : (httpDir + "/" + item.path().filename().string());
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res.twss = item.path().extension() == ".twss";
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FILE* f = fopen(ent.c_str(),"rb");
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byte_array_f(res.data,f);
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fclose(f);
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res.mime = HttpUtils::MimeType(ent);
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resources.push_back(res);
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if(mustList)
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paths.push_back(std::pair<std::string,bool>(item.path().filename().string(),false));
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}
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}
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if(mustList)
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{
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std::string html = "<html><head><title>Index of ";
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html.append(HttpUtils::HtmlEncode(httpDir.ends_with('/') ? httpDir : (httpDir + "/")));
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html.append("</title></head><body><h1>Index of ");
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html.append(HttpUtils::HtmlEncode(httpDir.ends_with('/') ? httpDir : (httpDir + "/")));
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html.append("</h1><pre><hr><a href=\"../\">../</a>\r\n");
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for(auto item : paths)
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{
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html.append("<a href=\"");
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html.append(HttpUtils::UrlPathEncode(item.first));
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if(item.second)
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html.append("/\">");
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else
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html.append("\">");
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html.append(HttpUtils::HtmlEncode(item.first));
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if(item.second)
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html.append("/</a>\r\n");
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else
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html.append("</a>\r\n");
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}
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html.append("</pre><hr></body></html>");
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Resource res;
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res.path = httpDir;
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res.twss = false;
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byte_array_a(res.data,(uint8_t*)&html[0],html.size());
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res.mime = "text/html";
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resources.push_back(res);
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if(!httpDir.ends_with('/'))
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{
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res.path = httpDir + "/";
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resources.push_back(res);
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}
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}
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}
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bool file_exists(const char* dir, const char* path)
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{
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std::filesystem::path p0(dir);
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std::filesystem::path p1(path);
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std::filesystem::path p2 = p0 / p1;
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follow_symlink(p2);
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return std::filesystem::is_regular_file(p2);
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}
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std::string escape_string(std::string path)
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{
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std::string s={};
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s.push_back('\"');
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for(auto item : path)
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{
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switch(item)
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{
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case '\\':
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case '\"':
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case '\'':
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s.push_back('\\');
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s.push_back(item);
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break;
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case '\0':
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s.push_back('\\');
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s.push_back('0');
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break;
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case '\t':
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s.push_back('\\');
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s.push_back('t');
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break;
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case '\n':
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s.push_back('\\');
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s.push_back('n');
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break;
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case '\r':
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s.push_back('\\');
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s.push_back('r');
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break;
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case '\v':
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s.push_back('\\');
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s.push_back('v');
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break;
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case '\f':
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s.push_back('\\');
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s.push_back('f');
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break;
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case '\b':
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s.push_back('\\');
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s.push_back('b');
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break;
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case '\a':
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s.push_back('\\');
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s.push_back('a');
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break;
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case '\?':
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s.push_back('\\');
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s.push_back('?');
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break;
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default:
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{
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if(item >= ' ' && item <= '~')
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s.push_back(item);
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else
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{
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s.push_back('\\');
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s.push_back('x');
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s.push_back(HttpUtils::nibble_to_hex_char((uint8_t)((item >> 4) & 0x0F)));
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s.push_back(HttpUtils::nibble_to_hex_char((uint8_t)(item & 0x0F)));
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}
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}
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break;
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}
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}
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s.push_back('\"');
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return s;
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}
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int main(int argc,char** argv)
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{
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const char* error = NULL;
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const char* output = "WWWGen.hpp";
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const char* source = "wwwroot";
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bool enableScripts=true;
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bool enableListing=true;
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bool enableDefaultIndexes=true;
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bool help=false;
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std::vector<std::string> indexes;
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for(int i = 1;i<argc;i++)
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{
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if(strcmp(argv[i],"--help") == 0 || strcmp(argv[i],"-h") == 0)
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{
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help = true;
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break;
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}
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if(strcmp(argv[i],"--disable-script") == 0)
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{
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enableScripts = false;
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}
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if(strcmp(argv[i],"--disable-listing") == 0)
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{
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enableListing = false;
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}
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if(strcmp(argv[i],"--disable-default-indexes") == 0)
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{
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enableDefaultIndexes = false;
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}
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if(strcmp(argv[i],"-o") == 0 || strcmp(argv[i],"--output") == 0)
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{
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if(i+1<argc)
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{
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output = argv[i+1];
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i++;
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}
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else
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{
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error = "Ran out of arguments";
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help = true;
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break;
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}
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}
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if(strcmp(argv[i],"-s") == 0 || strcmp(argv[i],"--source") == 0)
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{
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if(i+1<argc)
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{
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source = argv[i+1];
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i++;
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}
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else
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{
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error = "Ran out of arguments";
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help = true;
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break;
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}
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}
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if(strcmp(argv[i],"-i") == 0 || strcmp(argv[i],"--index") == 0)
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{
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if(i+1<argc)
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{
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indexes.push_back(argv[i+1]);
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i++;
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}
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else
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{
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error = "Ran out of arguments";
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help = true;
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break;
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}
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}
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}
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if(help)
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{
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if(error != NULL)
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{
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printf("ERROR: %s\n", error);
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}
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printf("USAGE: %s [options]\n\n",argv[0]);
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printf("FLAGS:\n");
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printf("-h, --help\tShow this help screen\n");
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printf("--disable-script\tDisable .twss scripts from being ran\n");
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printf("--disable-listing\tDisable directory listing on server\n");
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printf("--disable-default-indexes\tDisable default index files \"index.html\", \"default.html\", \"index.htm\", \"default.htm\", \"index.twss\", \"default.twss\"\n");
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printf("\n");
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printf("OPTIONS:\n");
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printf("-o [header file], --output [header file]\t(defaults to \"WWWGen.hpp\") Specify the output header filename with extension, be aware this is also the class name (without extension of course so no spaces)\n");
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printf("-s [source dir], --source [source dir]\t(defaults to \"wwwroot\") Specify the source directory to convert\n");
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printf("-i [index file], --index [index file]\tSpecify custom index file such as index.html where going to / on server will resolve /index.html or /page will become /page/index.html, to use multiple files use this option again followed by filename\n");
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printf("\nIf you run this program without any arguments the directory \"wwwroot\" and output file \"WWWGen.hpp\" will be used and scripts WILL be able to run, users WILL be able to list directories without index files and these index filenames will be used \"index.html\", \"default.html\", \"index.htm\", \"default.htm\", \"index.twss\", \"default.twss\"\n");
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return 1;
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}
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else
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{
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if(enableDefaultIndexes)
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{
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indexes.push_back("index.html");
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indexes.push_back("default.html");
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indexes.push_back("index.htm");
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indexes.push_back("default.htm");
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if(enableScripts)
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{
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indexes.push_back("index.twss");
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indexes.push_back("default.twss");
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}
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}
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std::filesystem::path p(output);
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std::string name = p.filename().replace_extension("").string();
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std::vector<Resource> resources;
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get_files(resources, indexes, enableListing,source,"/");
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std::string cls = "#pragma once\n/* Generated via wwwgen */\n#include <string>\n#include <vector>\n#include <initializer_list>\n#include <filesystem>\n#include \"tesseswebserver.hpp\"\nclass " + name + "Resource {public: std::vector<uint8_t> data; std::string mime; std::string path; bool isScript; " + name + "Resource(std::string path, std::string mime,bool isScript, std::initializer_list<uint8_t> data) {this->path = path; this->mime = mime; this->isScript=isScript; this->data = data;} };\nclass " + name + " : public Tesses::WebServer::IServer {\n";
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if(enableScripts)
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{
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cls.append("#if defined(USE_SCRIPT_ENGINE)\nTesses::WebServer::ScriptEngine::RootEnvironment* env;\nTesses::WebServer::ScriptEngine::BytecodeFile* initFile;\n#endif\n");
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cls.append("\nstd::vector<uint8_t>* get_script_file(std::filesystem::path p){ int i = get_file(p); if(i > -1) return &(resources[i].data); return nullptr; }\n");
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}
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cls.append("int get_file(std::filesystem::path p){ int index = 0; for(auto item : resources) { if(p.string() == item.path) return index; index++; } return -1; }");
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cls.append("std::filesystem::path sanitise(std::string name){std::filesystem::path p=\"/\"; auto path_parts = Tesses::WebServer::HttpUtils::SplitString(name.substr(1),\"/\");for(auto item : path_parts){auto decoded = Tesses::WebServer::HttpUtils::Sanitise(Tesses::WebServer::HttpUtils::UrlPathDecode(item));if(decoded == \"..\" || decoded == \".\") continue; p /= decoded;} return p;}\n");
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cls.append("std::vector<");
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cls.append(name);
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cls.append("Resource> resources;\n");
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cls.append("public:\n");
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cls.append(name);
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cls.append("(){\n");
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for(auto item : resources)
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{
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cls.append("resources.push_back(");
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cls.append(name);
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cls.append("Resource(");
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cls.append(escape_string(item.path));
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cls.push_back(',');
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cls.append(escape_string(item.mime));
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cls.append(item.twss ? ",true," : ",false,");
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cls.append(item.data);
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cls.append("));\n");
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}
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if(enableScripts)
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{
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cls.append("\n#if defined(USE_SCRIPT_ENGINE)\n");
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cls.append("env = new Tesses::WebServer::ScriptEngine::RootEnvironment();");
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cls.append("env->print = [](Tesses::WebServer::ScriptEngine::ScriptType t)->void {");
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cls.append("std::cout << \"[Script]: \" << Tesses::WebServer::ScriptEngine::ConvertToString(t) << std::endl;");
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cls.append("};");
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if(file_exists(source,"init.twss"))
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{
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cls.append("Tesses::WebServer::ScriptEngine::ConstBufferReadFile readFile([this](std::filesystem::path p) -> std::vector<uint8_t>* { return get_script_file(p);});");
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cls.append("Tesses::WebServer::ScriptEngine::BytecodeCompiler bcc(Tesses::WebServer::ScriptEngine::ScriptParser::Parse(&readFile,\"/init.twss\"));");
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cls.append("bcc.Compile();");
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cls.append("this->initFile = bcc.file;auto rf = bcc.file->rootFunction;rf->env = env;rf->isRoot=true;for(auto f : bcc.file->functions){auto rf2 = f.second;rf2->env = env;rf2->isRoot=false;env->SetValue(f.first,Tesses::WebServer::ScriptEngine::ObjectType(f.second));}rf->Execute(env,{});");
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}
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cls.append("\n#endif\n");
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}
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cls.append("}");
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if(enableScripts)
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{
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cls.append("\n#if defined(USE_SCRIPT_ENGINE)\nTesses::WebServer::ScriptEngine::RootEnvironment* GetRootEnvironment(){return this->env;}\n#endif\n");
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}
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cls.append("bool Handle(Tesses::WebServer::ServerContext* ctx){auto path=sanitise(ctx->path); int index = get_file(path); if(index == -1) return false;");
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if(enableScripts)
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{
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cls.append("\n#if defined(USE_SCRIPT_ENGINE)\n");
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cls.append("if(resources[index].isScript) {");
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cls.append("auto myEnv = new Tesses::WebServer::ScriptEngine::RootEnvironment();");
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cls.append("myEnv->global = this->env;");
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cls.append("std::string str={};");
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cls.append("myEnv->print = [&str](Tesses::WebServer::ScriptEngine::ScriptType typ) -> void {");
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cls.append("str.append(Tesses::WebServer::ScriptEngine::ConvertToString(typ));");
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cls.append("};");
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cls.append("Tesses::WebServer::ScriptEngine::ConstBufferReadFile readFile([this](std::filesystem::path p) -> std::vector<uint8_t>* { return get_script_file(p);});");
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cls.append("Tesses::WebServer::ScriptEngine::BytecodeCompiler bcc(Tesses::WebServer::ScriptEngine::ScriptParser::Parse(&readFile,resources[index].path));");
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cls.append("bcc.Compile();");
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cls.append("auto rf = bcc.file->rootFunction;");
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cls.append("rf->env = myEnv;");
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cls.append("rf->isRoot=true;");
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cls.append("for(auto f : bcc.file->functions)");
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cls.append("{");
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cls.append("auto rf2 = f.second;");
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cls.append("rf2->env = myEnv;");
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cls.append("rf2->isRoot=false;");
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cls.append("env->SetValue(f.first,Tesses::WebServer::ScriptEngine::ObjectType(f.second));");
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cls.append("}");
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cls.append("myEnv->RegisterHttpFuncs(ctx);");
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cls.append("rf->Execute(myEnv,{});");
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cls.append("delete bcc.file;");
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cls.append("delete myEnv;");
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cls.append("ctx->SetContentType(\"text/html\")->SendText(str);");
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cls.append("}else{\n#endif\n");
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}
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cls.append("ctx->SetContentType(resources[index].mime)->SendBytes(resources[index].data.data(),resources[index].data.size());");
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if(enableScripts)
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{
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cls.append("\n#if defined(USE_SCRIPT_ENGINE)\n}\n#endif\n");
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}
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cls.append("return true;}");
|
|
|
|
if(enableScripts){
|
|
cls.append("~");
|
|
cls.append(name);
|
|
cls.append("(){\n#if defined(USE_SCRIPT_ENGINE)\n");
|
|
|
|
if(file_exists(source,"deinit.twss"))
|
|
{
|
|
cls.append("Tesses::WebServer::ScriptEngine::ConstBufferReadFile readFile([this](std::filesystem::path p) -> std::vector<uint8_t>* { return get_script_file(p);});");
|
|
cls.append("Tesses::WebServer::ScriptEngine::BytecodeCompiler bcc(Tesses::WebServer::ScriptEngine::ScriptParser::Parse(&readFile,\"/deinit.twss\"));");
|
|
cls.append("bcc.Compile();");
|
|
cls.append("auto rf = bcc.file->rootFunction;rf->env = env;rf->isRoot=true;for(auto f : bcc.file->functions){auto rf2 = f.second;rf2->env = env;rf2->isRoot=false;env->SetValue(f.first,Tesses::WebServer::ScriptEngine::ObjectType(f.second));}rf->Execute(env,{});");
|
|
cls.append("delete bcc.file;");
|
|
}
|
|
cls.append("delete initFile;");
|
|
cls.append("delete env;");
|
|
cls.append("\n#endif\n}");
|
|
}
|
|
|
|
cls.append("};");
|
|
|
|
|
|
std::ofstream strm(output,std::ofstream::binary);
|
|
|
|
strm << cls << "\n";
|
|
}
|
|
return 0;
|
|
} |