just some more thoughts

This commit is contained in:
Blue 2023-04-18 13:16:36 -03:00
parent e0a17115f9
commit 86292db6f3
Signed by: blue
GPG Key ID: 9B203B252A63EE38
14 changed files with 279 additions and 97 deletions

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@ -1,12 +1,12 @@
set(SOURCE_FILES
main.cpp
server.cpp
response.cpp
)
set(HEADER_FILES
server.h
response.h
)
target_sources(birdbadge PRIVATE ${SOURCE_FILES})
add_subdirectory(response)

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@ -1,42 +0,0 @@
#include "response.h"
constexpr static const char* pathDelimiter("/");
Response::Response(const std::string_view& path):
status(Status::ok),
body()
{
std::vector<std::string_view> split = splitPath(path);
selfIndentification(split);
}
void Response::selfIndentification(const std::vector<std::string_view>& path) {
if (path.size() == 0) {
status = Status::ok;
}
}
void Response::writeHeader(std::ostream& out) const {
}
void Response::writeBody(std::ostream& out) const {
}
std::vector<std::string_view> Response::splitPath(std::string_view path) {
std::vector<std::string_view> output;
std::string_view::size_type first = 0;
while (first < path.size()) {
const std::string_view::size_type second = path.find_first_of(pathDelimiter, first);
if (first != second)
output.emplace_back(path.substr(first, second - first));
if (second == std::string_view::npos)
break;
first = second + 1;
}
return output;
}

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@ -1,28 +0,0 @@
#pragma once
#include <string_view>
#include <vector>
class Response {
public:
enum Status {
ok,
notFound,
error
};
Response(const std::string_view& path);
void writeHeader(std::ostream& out) const;
void writeBody(std::ostream& out) const;
private:
void selfIndentification(const std::vector<std::string_view>& path);
static std::vector<std::string_view> splitPath(std::string_view path);
private:
Status status;
std::string body;
};

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@ -0,0 +1,15 @@
set(SOURCE_FILES
response.cpp
root.cpp
notfound.cpp
badge.cpp
)
set(HEADER_FILES
response.h
root.h
notfound.h
badge.h
)
target_sources(birdbadge PRIVATE ${SOURCE_FILES})

57
src/response/badge.cpp Normal file
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@ -0,0 +1,57 @@
#include "badge.h"
constexpr const char* openBracket("<");
constexpr const char* closeBracket(">");
constexpr const char* svgTag("svg");
constexpr const char* titleTag("title");
constexpr const char* svgAttrs =
"xmlns=\"http://www.w3.org/2000/svg\" "
"xmlns:xlink=\"http://www.w3.org/1999/xlink\" "
"width=\"134\" "
"height=\"20\" "
"role=\"img\"";
constexpr const char* ariaLabel("aria-label");
Badge::Badge(Badge::Kind kind, const std::string& title, const std::string& value, const std::string& color):
Response(Type::image),
kind(kind),
title(title),
value(value),
color(color)
{}
Badge::~Badge() {}
void Badge::writeHeader(std::ostream& out) const {
out << status200Header << newLine;
out << contentTypeSVG;
out << headerTerminator;
}
void Badge::writeBody(std::ostream& out) const {
out << openBracket << svgTag << " ";
out << svgAttrs << " ";
out << ariaLabel << "=\"" << title << ": " << value << "\"";
out << closeBracket;
out << openBracket << titleTag << closeBracket;
out << title << ": " << value;
out << openBracket << "/" << titleTag << closeBracket;
//may be gradients
//may be round corners
out << "<rect width=\"100\" height=\"20\" fill=\"#dddddd\" />";
out << "<rect x=\"100\" width=\"34\" height=\"20\" fill=\"#0044dd\" />";
out << openBracket << "/" << svgTag << closeBracket;
}
/**
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="134" height="20" role="img" aria-label="Documentation: HTML"><title>Documentation: HTML</title><linearGradient id="s" x2="0" y2="100%"><stop offset="0" stop-color="#bbb" stop-opacity=".1"/><stop offset="1" stop-opacity=".1"/></linearGradient><clipPath id="r"><rect width="134" height="20" rx="3" fill="#fff"/></clipPath><g clip-path="url(#r)"><rect width="93" height="20" fill="#555"/><rect x="93" width="41" height="20" fill="#97ca00"/><rect width="134" height="20" fill="url(#s)"/></g><g fill="#fff" text-anchor="middle" font-family="Verdana,Geneva,DejaVu Sans,sans-serif" text-rendering="geometricPrecision" font-size="110"><text aria-hidden="true" x="475" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="830">Documentation</text><text x="475" y="140" transform="scale(.1)" fill="#fff" textLength="830">Documentation</text><text aria-hidden="true" x="1125" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="310">HTML</text><text x="1125" y="140" transform="scale(.1)" fill="#fff" textLength="310">HTML</text></g></svg>
*/

25
src/response/badge.h Normal file
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@ -0,0 +1,25 @@
#pragma once
#include "response.h"
class Badge: public Response {
friend class Response;
public:
enum class Kind {
allStatic
};
~Badge() override;
void writeBody(std::ostream & out) const override;
void writeHeader(std::ostream & out) const override;
protected:
Badge(Kind kind, const std::string& title = "", const std::string& value = "", const std::string& color = "");
protected:
Kind kind;
std::string title;
std::string value;
std::string color;
};

17
src/response/notfound.cpp Normal file
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@ -0,0 +1,17 @@
#include "notfound.h"
NotFound::NotFound():
Response(Type::error)
{}
NotFound::~NotFound() {}
void NotFound::writeHeader(std::ostream& out) const {
out << status404Header << newLine;
out << contentTypeHTML << newLine;
out << headerTerminator;
}
void NotFound::writeBody(std::ostream& out) const {
out << "Page you're requesting was not found" << newLine;
}

16
src/response/notfound.h Normal file
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@ -0,0 +1,16 @@
#pragma once
#include "response.h"
class NotFound: public Response {
friend class Response;
public:
~NotFound() override;
void writeHeader(std::ostream & out) const override;
void writeBody(std::ostream & out) const override;
protected:
NotFound();
};

59
src/response/response.cpp Normal file
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@ -0,0 +1,59 @@
#include "response.h"
#include "root.h"
#include "notfound.h"
#include "badge.h"
const char* Response::status200Header("Status: 200 OK");
const char* Response::status404Header("Status: 404 Not Found");
const char* Response::status405Header("Status: 405 Method Not Allowed");
const char* Response::status500Header("Status: 500 Internal Error");
const char* Response::pathDelimiter("/");
const char* Response::newLine("\n");
const char* Response::headerTerminator("\n\n");
const char* Response::contentTypeHTML("Content-type: text/html");
const char* Response::contentTypeSVG("Content-type: image/svg+xml;charset=utf-8");
constexpr const char* staticHop("static");
Response::Response(Type type):
type(type)
{}
Response::~Response() {}
Response* Response::create(const std::string_view& path) {
std::vector<std::string_view> split = splitPath(path);
if (path.size() == 0) {
return new Root();
}
const std::string_view& firstHop = split[0];
if (firstHop == staticHop) {
return new Badge(Badge::Kind::allStatic);
}
return new NotFound();
}
std::vector<std::string_view> Response::splitPath(std::string_view path) {
std::vector<std::string_view> output;
std::string_view::size_type first = 0;
while (first < path.size()) {
const std::string_view::size_type second = path.find_first_of(pathDelimiter, first);
if (first != second)
output.emplace_back(path.substr(first, second - first));
if (second == std::string_view::npos)
break;
first = second + 1;
}
return output;
}

41
src/response/response.h Normal file
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@ -0,0 +1,41 @@
#pragma once
#include <string_view>
#include <string>
#include <vector>
#include <iostream>
class Response {
public:
enum Type {
image,
root,
error
};
virtual ~Response();
virtual void writeHeader(std::ostream& out) const = 0;
virtual void writeBody(std::ostream& out) const = 0;
static Response* create(const std::string_view& path);
protected:
Response(Type type);
static std::vector<std::string_view> splitPath(std::string_view path);
public:
const Type type;
static const char* status200Header;
static const char* status404Header;
static const char* status405Header;
static const char* status500Header;
static const char* pathDelimiter;
static const char* newLine;
static const char* headerTerminator;
static const char* contentTypeHTML;
static const char* contentTypeSVG;
};

17
src/response/root.cpp Normal file
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@ -0,0 +1,17 @@
#include "root.h"
Root::Root():
Response(Type::root)
{}
Root::~Root() {}
void Root::writeHeader(std::ostream& out) const {
out << status200Header << newLine;
out << contentTypeHTML << newLine;
out << headerTerminator;
}
void Root::writeBody(std::ostream& out) const {
out << "Hello! This is Birdbadge root page!" << newLine;
}

15
src/response/root.h Normal file
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@ -0,0 +1,15 @@
#pragma once
#include "response.h"
class Root: public Response {
friend class Response;
public:
~Root() override;
void writeBody(std::ostream & out) const override;
void writeHeader(std::ostream & out) const override;
protected:
Root();
};

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@ -13,23 +13,12 @@ constexpr static const char* SCRIPT_FILENAME("SCRIPT_FILENAME");
constexpr static const char* SERVER_NAME("SERVER_NAME");
constexpr static const char* status405("Status: 405 Method Not Allowed");
constexpr static const char* status500("Status: 500 Internal Error");
constexpr static const char* status200("Status: 200 OK");
constexpr static const char* contentTypeHtml("Content-type: text/html");
constexpr static const char* headerEnd("\n\n");
constexpr static const char* newLine("\n");
constexpr static const char* svgHeader("image/svg+xml;charset=utf-8");
Server::Server():
requestCount(0),
serverName(std::nullopt)
{}
Server::~Server() {
}
Server::~Server() {}
void Server::handleRequest(FCGX_Request& request) {
accountRequest(request);
@ -41,18 +30,23 @@ void Server::handleRequest(FCGX_Request& request) {
std::ostream errs{&cerr_fcgi_streambuf};
std::istream is{&cin_fcgi_streambuf};
std::string requestMethod(FCGX_GetParam(REQUEST_METHOD, request.envp));
std::string_view requestMethod(FCGX_GetParam(REQUEST_METHOD, request.envp));
if (requestMethod != GET) {
os << status405;
os << Response::status405Header;
return;
}
writeHeader(os);
try {
std::string_view sPath = getPath(request);
Response response(sPath);
Response* response = Response::create(sPath);
response->writeHeader(os);
response->writeBody(os);
delete response;
} catch (const std::exception e) {
writeHeader(os);
os << e.what();
}
}
@ -65,9 +59,9 @@ void Server::printEnv(std::ostream& out, FCGX_Request& request) {
}
void Server::writeHeader(std::ostream& out) {
out << status200 << newLine;
out << contentTypeHtml;
out << headerEnd;
out << Response::status200Header << Response::newLine;
out << Response::contentTypeHTML;
out << Response::headerTerminator;
}
void Server::accountRequest(const FCGX_Request& request) {
@ -77,9 +71,7 @@ void Server::accountRequest(const FCGX_Request& request) {
try {
serverName = FCGX_GetParam(SERVER_NAME, request.envp);
std::cout << "received server name " << serverName.value() << std::endl;
} catch (...) {
std::cout << "couldn't parse " << std::endl;
}
} catch (...) {}
}
}

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@ -9,7 +9,7 @@
#include <fcgiapp.h>
#include <fcgio.h>
#include "response.h"
#include "response/response.h"
class Server {
public:
@ -25,8 +25,6 @@ private:
void accountRequest(const FCGX_Request& request);
std::string_view getPath(const FCGX_Request& request);
private:
uint64_t requestCount;
std::optional<std::string> serverName;