forked from vieter-v/vieter
refactor(web): simplified web framework in general
parent
78b0918df7
commit
3a73ea0632
GPG Key ID:
B75D4F293C7052DB
|
|
@ -0,0 +1,125 @@
|
|||
module web
|
||||
|
||||
import net.http
|
||||
|
||||
// A dummy structure that returns from routes to indicate that you actually sent something to a user
|
||||
[noinit]
|
||||
pub struct Result {}
|
||||
|
||||
pub const (
|
||||
methods_with_form = [http.Method.post, .put, .patch]
|
||||
headers_close = http.new_custom_header_from_map({
|
||||
'Server': 'VWeb'
|
||||
http.CommonHeader.connection.str(): 'close'
|
||||
}) or { panic('should never fail') }
|
||||
|
||||
http_302 = http.new_response(
|
||||
status: .found
|
||||
body: '302 Found'
|
||||
header: headers_close
|
||||
)
|
||||
http_400 = http.new_response(
|
||||
status: .bad_request
|
||||
body: '400 Bad Request'
|
||||
header: http.new_header(
|
||||
key: .content_type
|
||||
value: 'text/plain'
|
||||
).join(headers_close)
|
||||
)
|
||||
http_404 = http.new_response(
|
||||
status: .not_found
|
||||
body: '404 Not Found'
|
||||
header: http.new_header(
|
||||
key: .content_type
|
||||
value: 'text/plain'
|
||||
).join(headers_close)
|
||||
)
|
||||
http_500 = http.new_response(
|
||||
status: .internal_server_error
|
||||
body: '500 Internal Server Error'
|
||||
header: http.new_header(
|
||||
key: .content_type
|
||||
value: 'text/plain'
|
||||
).join(headers_close)
|
||||
)
|
||||
mime_types = {
|
||||
'.aac': 'audio/aac'
|
||||
'.abw': 'application/x-abiword'
|
||||
'.arc': 'application/x-freearc'
|
||||
'.avi': 'video/x-msvideo'
|
||||
'.azw': 'application/vnd.amazon.ebook'
|
||||
'.bin': 'application/octet-stream'
|
||||
'.bmp': 'image/bmp'
|
||||
'.bz': 'application/x-bzip'
|
||||
'.bz2': 'application/x-bzip2'
|
||||
'.cda': 'application/x-cdf'
|
||||
'.csh': 'application/x-csh'
|
||||
'.css': 'text/css'
|
||||
'.csv': 'text/csv'
|
||||
'.doc': 'application/msword'
|
||||
'.docx': 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'
|
||||
'.eot': 'application/vnd.ms-fontobject'
|
||||
'.epub': 'application/epub+zip'
|
||||
'.gz': 'application/gzip'
|
||||
'.gif': 'image/gif'
|
||||
'.htm': 'text/html'
|
||||
'.html': 'text/html'
|
||||
'.ico': 'image/vnd.microsoft.icon'
|
||||
'.ics': 'text/calendar'
|
||||
'.jar': 'application/java-archive'
|
||||
'.jpeg': 'image/jpeg'
|
||||
'.jpg': 'image/jpeg'
|
||||
'.js': 'text/javascript'
|
||||
'.json': 'application/json'
|
||||
'.jsonld': 'application/ld+json'
|
||||
'.mid': 'audio/midi audio/x-midi'
|
||||
'.midi': 'audio/midi audio/x-midi'
|
||||
'.mjs': 'text/javascript'
|
||||
'.mp3': 'audio/mpeg'
|
||||
'.mp4': 'video/mp4'
|
||||
'.mpeg': 'video/mpeg'
|
||||
'.mpkg': 'application/vnd.apple.installer+xml'
|
||||
'.odp': 'application/vnd.oasis.opendocument.presentation'
|
||||
'.ods': 'application/vnd.oasis.opendocument.spreadsheet'
|
||||
'.odt': 'application/vnd.oasis.opendocument.text'
|
||||
'.oga': 'audio/ogg'
|
||||
'.ogv': 'video/ogg'
|
||||
'.ogx': 'application/ogg'
|
||||
'.opus': 'audio/opus'
|
||||
'.otf': 'font/otf'
|
||||
'.png': 'image/png'
|
||||
'.pdf': 'application/pdf'
|
||||
'.php': 'application/x-httpd-php'
|
||||
'.ppt': 'application/vnd.ms-powerpoint'
|
||||
'.pptx': 'application/vnd.openxmlformats-officedocument.presentationml.presentation'
|
||||
'.rar': 'application/vnd.rar'
|
||||
'.rtf': 'application/rtf'
|
||||
'.sh': 'application/x-sh'
|
||||
'.svg': 'image/svg+xml'
|
||||
'.swf': 'application/x-shockwave-flash'
|
||||
'.tar': 'application/x-tar'
|
||||
'.tif': 'image/tiff'
|
||||
'.tiff': 'image/tiff'
|
||||
'.ts': 'video/mp2t'
|
||||
'.ttf': 'font/ttf'
|
||||
'.txt': 'text/plain'
|
||||
'.vsd': 'application/vnd.visio'
|
||||
'.wav': 'audio/wav'
|
||||
'.weba': 'audio/webm'
|
||||
'.webm': 'video/webm'
|
||||
'.webp': 'image/webp'
|
||||
'.woff': 'font/woff'
|
||||
'.woff2': 'font/woff2'
|
||||
'.xhtml': 'application/xhtml+xml'
|
||||
'.xls': 'application/vnd.ms-excel'
|
||||
'.xlsx': 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
|
||||
'.xml': 'application/xml'
|
||||
'.xul': 'application/vnd.mozilla.xul+xml'
|
||||
'.zip': 'application/zip'
|
||||
'.3gp': 'video/3gpp'
|
||||
'.3g2': 'video/3gpp2'
|
||||
'.7z': 'application/x-7z-compressed'
|
||||
}
|
||||
max_http_post_size = 1024 * 1024
|
||||
default_port = 8080
|
||||
)
|
||||
273
src/web/web.v
273
src/web/web.v
|
|
@ -12,146 +12,23 @@ import time
|
|||
import json
|
||||
import log
|
||||
|
||||
// A dummy structure that returns from routes to indicate that you actually sent something to a user
|
||||
[noinit]
|
||||
pub struct Result {}
|
||||
|
||||
pub const (
|
||||
methods_with_form = [http.Method.post, .put, .patch]
|
||||
headers_close = http.new_custom_header_from_map({
|
||||
'Server': 'VWeb'
|
||||
http.CommonHeader.connection.str(): 'close'
|
||||
}) or { panic('should never fail') }
|
||||
|
||||
http_302 = http.new_response(
|
||||
status: .found
|
||||
body: '302 Found'
|
||||
header: headers_close
|
||||
)
|
||||
http_400 = http.new_response(
|
||||
status: .bad_request
|
||||
body: '400 Bad Request'
|
||||
header: http.new_header(
|
||||
key: .content_type
|
||||
value: 'text/plain'
|
||||
).join(headers_close)
|
||||
)
|
||||
http_404 = http.new_response(
|
||||
status: .not_found
|
||||
body: '404 Not Found'
|
||||
header: http.new_header(
|
||||
key: .content_type
|
||||
value: 'text/plain'
|
||||
).join(headers_close)
|
||||
)
|
||||
http_500 = http.new_response(
|
||||
status: .internal_server_error
|
||||
body: '500 Internal Server Error'
|
||||
header: http.new_header(
|
||||
key: .content_type
|
||||
value: 'text/plain'
|
||||
).join(headers_close)
|
||||
)
|
||||
mime_types = {
|
||||
'.aac': 'audio/aac'
|
||||
'.abw': 'application/x-abiword'
|
||||
'.arc': 'application/x-freearc'
|
||||
'.avi': 'video/x-msvideo'
|
||||
'.azw': 'application/vnd.amazon.ebook'
|
||||
'.bin': 'application/octet-stream'
|
||||
'.bmp': 'image/bmp'
|
||||
'.bz': 'application/x-bzip'
|
||||
'.bz2': 'application/x-bzip2'
|
||||
'.cda': 'application/x-cdf'
|
||||
'.csh': 'application/x-csh'
|
||||
'.css': 'text/css'
|
||||
'.csv': 'text/csv'
|
||||
'.doc': 'application/msword'
|
||||
'.docx': 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'
|
||||
'.eot': 'application/vnd.ms-fontobject'
|
||||
'.epub': 'application/epub+zip'
|
||||
'.gz': 'application/gzip'
|
||||
'.gif': 'image/gif'
|
||||
'.htm': 'text/html'
|
||||
'.html': 'text/html'
|
||||
'.ico': 'image/vnd.microsoft.icon'
|
||||
'.ics': 'text/calendar'
|
||||
'.jar': 'application/java-archive'
|
||||
'.jpeg': 'image/jpeg'
|
||||
'.jpg': 'image/jpeg'
|
||||
'.js': 'text/javascript'
|
||||
'.json': 'application/json'
|
||||
'.jsonld': 'application/ld+json'
|
||||
'.mid': 'audio/midi audio/x-midi'
|
||||
'.midi': 'audio/midi audio/x-midi'
|
||||
'.mjs': 'text/javascript'
|
||||
'.mp3': 'audio/mpeg'
|
||||
'.mp4': 'video/mp4'
|
||||
'.mpeg': 'video/mpeg'
|
||||
'.mpkg': 'application/vnd.apple.installer+xml'
|
||||
'.odp': 'application/vnd.oasis.opendocument.presentation'
|
||||
'.ods': 'application/vnd.oasis.opendocument.spreadsheet'
|
||||
'.odt': 'application/vnd.oasis.opendocument.text'
|
||||
'.oga': 'audio/ogg'
|
||||
'.ogv': 'video/ogg'
|
||||
'.ogx': 'application/ogg'
|
||||
'.opus': 'audio/opus'
|
||||
'.otf': 'font/otf'
|
||||
'.png': 'image/png'
|
||||
'.pdf': 'application/pdf'
|
||||
'.php': 'application/x-httpd-php'
|
||||
'.ppt': 'application/vnd.ms-powerpoint'
|
||||
'.pptx': 'application/vnd.openxmlformats-officedocument.presentationml.presentation'
|
||||
'.rar': 'application/vnd.rar'
|
||||
'.rtf': 'application/rtf'
|
||||
'.sh': 'application/x-sh'
|
||||
'.svg': 'image/svg+xml'
|
||||
'.swf': 'application/x-shockwave-flash'
|
||||
'.tar': 'application/x-tar'
|
||||
'.tif': 'image/tiff'
|
||||
'.tiff': 'image/tiff'
|
||||
'.ts': 'video/mp2t'
|
||||
'.ttf': 'font/ttf'
|
||||
'.txt': 'text/plain'
|
||||
'.vsd': 'application/vnd.visio'
|
||||
'.wav': 'audio/wav'
|
||||
'.weba': 'audio/webm'
|
||||
'.webm': 'video/webm'
|
||||
'.webp': 'image/webp'
|
||||
'.woff': 'font/woff'
|
||||
'.woff2': 'font/woff2'
|
||||
'.xhtml': 'application/xhtml+xml'
|
||||
'.xls': 'application/vnd.ms-excel'
|
||||
'.xlsx': 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
|
||||
'.xml': 'application/xml'
|
||||
'.xul': 'application/vnd.mozilla.xul+xml'
|
||||
'.zip': 'application/zip'
|
||||
'.3gp': 'video/3gpp'
|
||||
'.3g2': 'video/3gpp2'
|
||||
'.7z': 'application/x-7z-compressed'
|
||||
}
|
||||
max_http_post_size = 1024 * 1024
|
||||
default_port = 8080
|
||||
)
|
||||
|
||||
// The Context struct represents the Context which hold the HTTP request and response.
|
||||
// It has fields for the query, form, files.
|
||||
pub struct Context {
|
||||
mut:
|
||||
content_type string = 'text/plain'
|
||||
status http.Status = http.Status.ok
|
||||
pub:
|
||||
// HTTP Request
|
||||
req http.Request
|
||||
// TODO Response
|
||||
pub mut:
|
||||
done bool
|
||||
// time.ticks() from start of web connection handle.
|
||||
// You can use it to determine how much time is spent on your request.
|
||||
page_gen_start i64
|
||||
// TCP connection to client.
|
||||
// But beware, do not store it for further use, after request processing web will close connection.
|
||||
conn &net.TcpConn
|
||||
// Gives access to a shared logger object
|
||||
logger shared log.Log
|
||||
// REQUEST
|
||||
// time.ticks() from start of web connection handle.
|
||||
// You can use it to determine how much time is spent on your request.
|
||||
page_gen_start i64
|
||||
static_files map[string]string
|
||||
static_mime_types map[string]string
|
||||
// Map containing query params for the route.
|
||||
|
|
@ -161,14 +38,13 @@ pub mut:
|
|||
form map[string]string
|
||||
// Files from multipart-form.
|
||||
files map[string][]http.FileData
|
||||
|
||||
header http.Header // response headers
|
||||
// ? It doesn't seem to be used anywhere
|
||||
form_error string
|
||||
// Allows reading the request body
|
||||
reader io.BufferedReader
|
||||
// Gives access to a shared logger object
|
||||
logger shared log.Log
|
||||
// RESPONSE
|
||||
status http.Status = http.Status.ok
|
||||
content_type string = 'text/plain'
|
||||
// response headers
|
||||
header http.Header
|
||||
}
|
||||
|
||||
struct FileData {
|
||||
|
|
@ -188,40 +64,68 @@ struct Route {
|
|||
// Probably you can use it for check user session cookie or add header.
|
||||
pub fn (ctx Context) before_request() {}
|
||||
|
||||
// send_string
|
||||
fn send_string(mut conn net.TcpConn, s string) ? {
|
||||
conn.write(s.bytes())?
|
||||
// send_string writes the given string to the TCP connection socket.
|
||||
fn (mut ctx Context) send_string(s string) ? {
|
||||
ctx.conn.write(s.bytes())?
|
||||
}
|
||||
|
||||
// send_response_to_client sends a response to the client
|
||||
[manualfree]
|
||||
pub fn (mut ctx Context) send_response_to_client(mimetype string, res string) bool {
|
||||
if ctx.done {
|
||||
return false
|
||||
// send_reader reads at most `size` bytes from the given reader & writes them
|
||||
// to the TCP connection socket. Internally, a 10KB buffer is used, to avoid
|
||||
// having to store all bytes in memory at once.
|
||||
fn (mut ctx Context) send_reader(mut reader io.Reader, size u64) ? {
|
||||
mut buf := []u8{len: 10_000}
|
||||
mut bytes_left := size
|
||||
|
||||
// Repeat as long as the stream still has data
|
||||
for bytes_left > 0 {
|
||||
bytes_read := reader.read(mut buf)?
|
||||
bytes_left -= u64(bytes_read)
|
||||
|
||||
mut to_write := bytes_read
|
||||
|
||||
for to_write > 0 {
|
||||
// TODO don't just loop infinitely here
|
||||
bytes_written := ctx.conn.write(buf[bytes_read - to_write..bytes_read]) or { continue }
|
||||
|
||||
to_write = to_write - bytes_written
|
||||
}
|
||||
ctx.done = true
|
||||
|
||||
// build header
|
||||
header := http.new_header_from_map({
|
||||
http.CommonHeader.content_type: mimetype
|
||||
http.CommonHeader.content_length: res.len.str()
|
||||
}).join(ctx.header)
|
||||
}
|
||||
}
|
||||
|
||||
// send_response_header constructs a valid HTTP response with an empty body &
|
||||
// sends it to the client.
|
||||
pub fn (mut ctx Context) send_response_header() ? {
|
||||
mut resp := http.Response{
|
||||
header: header.join(web.headers_close)
|
||||
body: res
|
||||
header: ctx.header.join(headers_close)
|
||||
}
|
||||
resp.set_version(.v1_1)
|
||||
resp.set_status(ctx.status)
|
||||
send_string(mut ctx.conn, resp.bytestr()) or { return false }
|
||||
ctx.send_string(resp.bytestr())?
|
||||
}
|
||||
|
||||
// send_response constructs the resulting HTTP response with the given body
|
||||
// string & sends it to the client.
|
||||
pub fn (mut ctx Context) send_response(res string) bool {
|
||||
ctx.send_response_header() or { return false }
|
||||
ctx.send_string(res) or { return false }
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
// send_reader_response constructs the resulting HTTP response with the given
|
||||
// body & streams the reader's contents to the client.
|
||||
pub fn (mut ctx Context) send_reader_response(mut reader io.Reader, size u64) bool {
|
||||
ctx.send_response_header() or { return false }
|
||||
ctx.send_reader(mut reader, size) or { return false }
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
// text responds to a request with some plaintext.
|
||||
pub fn (mut ctx Context) text(status http.Status, s string) Result {
|
||||
ctx.status = status
|
||||
|
||||
ctx.send_response_to_client('text/plain', s)
|
||||
ctx.content_type = 'text/plain'
|
||||
ctx.send_response(s)
|
||||
|
||||
return Result{}
|
||||
}
|
||||
|
|
@ -229,9 +133,10 @@ pub fn (mut ctx Context) text(status http.Status, s string) Result {
|
|||
// json<T> HTTP_OK with json_s as payload with content-type `application/json`
|
||||
pub fn (mut ctx Context) json<T>(status http.Status, j T) Result {
|
||||
ctx.status = status
|
||||
ctx.content_type = 'application/json'
|
||||
|
||||
json_s := json.encode(j)
|
||||
ctx.send_response_to_client('application/json', json_s)
|
||||
ctx.send_response(json_s)
|
||||
|
||||
return Result{}
|
||||
}
|
||||
|
|
@ -239,10 +144,6 @@ pub fn (mut ctx Context) json<T>(status http.Status, j T) Result {
|
|||
// file Response HTTP_OK with file as payload
|
||||
// This function manually implements responses because it needs to stream the file contents
|
||||
pub fn (mut ctx Context) file(f_path string) Result {
|
||||
if ctx.done {
|
||||
return Result{}
|
||||
}
|
||||
|
||||
if !os.is_file(f_path) {
|
||||
return ctx.not_found()
|
||||
}
|
||||
|
|
@ -266,7 +167,7 @@ pub fn (mut ctx Context) file(f_path string) Result {
|
|||
// We open the file before sending the headers in case reading fails
|
||||
file_size := os.file_size(f_path)
|
||||
|
||||
file := os.open(f_path) or {
|
||||
mut file := os.open(f_path) or {
|
||||
eprintln(err.msg())
|
||||
ctx.server_error(500)
|
||||
return Result{}
|
||||
|
|
@ -279,32 +180,32 @@ pub fn (mut ctx Context) file(f_path string) Result {
|
|||
}).join(ctx.header)
|
||||
|
||||
mut resp := http.Response{
|
||||
header: header.join(web.headers_close)
|
||||
header: header.join(headers_close)
|
||||
}
|
||||
resp.set_version(.v1_1)
|
||||
resp.set_status(ctx.status)
|
||||
send_string(mut ctx.conn, resp.bytestr()) or { return Result{} }
|
||||
ctx.send_string(resp.bytestr()) or { return Result{} }
|
||||
ctx.send_reader(mut file, file_size) or { return Result{} }
|
||||
|
||||
mut buf := []u8{len: 1_000_000}
|
||||
mut bytes_left := file_size
|
||||
// mut buf := []u8{len: 1_000_000}
|
||||
// mut bytes_left := file_size
|
||||
|
||||
// Repeat as long as the stream still has data
|
||||
for bytes_left > 0 {
|
||||
// TODO check if just breaking here is safe
|
||||
bytes_read := file.read(mut buf) or { break }
|
||||
bytes_left -= u64(bytes_read)
|
||||
// // Repeat as long as the stream still has data
|
||||
// for bytes_left > 0 {
|
||||
// // TODO check if just breaking here is safe
|
||||
// bytes_read := file.read(mut buf) or { break }
|
||||
// bytes_left -= u64(bytes_read)
|
||||
|
||||
mut to_write := bytes_read
|
||||
// mut to_write := bytes_read
|
||||
|
||||
for to_write > 0 {
|
||||
// TODO don't just loop infinitely here
|
||||
bytes_written := ctx.conn.write(buf[bytes_read - to_write..bytes_read]) or { continue }
|
||||
// for to_write > 0 {
|
||||
// // TODO don't just loop infinitely here
|
||||
// bytes_written := ctx.conn.write(buf[bytes_read - to_write..bytes_read]) or { continue }
|
||||
|
||||
to_write = to_write - bytes_written
|
||||
}
|
||||
}
|
||||
// to_write = to_write - bytes_written
|
||||
// }
|
||||
// }
|
||||
|
||||
ctx.done = true
|
||||
return Result{}
|
||||
}
|
||||
|
||||
|
|
@ -319,23 +220,16 @@ pub fn (mut ctx Context) server_error(ecode int) Result {
|
|||
$if debug {
|
||||
eprintln('> ctx.server_error ecode: $ecode')
|
||||
}
|
||||
if ctx.done {
|
||||
return Result{}
|
||||
}
|
||||
send_string(mut ctx.conn, web.http_500.bytestr()) or {}
|
||||
ctx.send_string(http_500.bytestr()) or {}
|
||||
return Result{}
|
||||
}
|
||||
|
||||
// redirect Redirect to an url
|
||||
pub fn (mut ctx Context) redirect(url string) Result {
|
||||
if ctx.done {
|
||||
return Result{}
|
||||
}
|
||||
ctx.done = true
|
||||
mut resp := web.http_302
|
||||
mut resp := http_302
|
||||
resp.header = resp.header.join(ctx.header)
|
||||
resp.header.add(.location, url)
|
||||
send_string(mut ctx.conn, resp.bytestr()) or { return Result{} }
|
||||
ctx.send_string(resp.bytestr()) or { return Result{} }
|
||||
return Result{}
|
||||
}
|
||||
|
||||
|
|
@ -532,7 +426,7 @@ fn handle_conn<T>(mut conn net.TcpConn, mut app T, routes map[string]Route) {
|
|||
}
|
||||
}
|
||||
// Route not found
|
||||
conn.write(web.http_404.bytes()) or {}
|
||||
conn.write(http_404.bytes()) or {}
|
||||
}
|
||||
|
||||
// route_matches returns wether a route matches
|
||||
|
|
@ -597,7 +491,6 @@ pub fn (ctx &Context) ip() string {
|
|||
// error Set s to the form error
|
||||
pub fn (mut ctx Context) error(s string) {
|
||||
println('web error: $s')
|
||||
ctx.form_error = s
|
||||
}
|
||||
|
||||
// filter Do not delete.
|
||||
|
|
|
|||
Loading…
Reference in New Issue