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Merge pull request 'Rework of web framework' (#266) from Chewing_Bever/vieter:web-rework into dev 

Reviewed-on: vieter-v/vieter#266
main
Jef Roosens 2022-09-04 22:29:41 +02:00
parent 78b0918df7 9dfdfbf724
commit 3e0a2584fa
16 changed files with 329 additions and 388 deletions
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2
CHANGELOG.md
View File

@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
providing a Git repository
* CLI commands for searching the AUR & directly adding packages
* HTTP routes for removing packages, arch-repos & repos
* All endpoints serving files now support HTTP byte range requests
### Changed
@ -25,6 +26,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
* Branch name for 'git' targets is now optional; if not provided, the
repository will be cloned with the default branch
* Build containers now explicitely set the PATH variable
* Refactor of web framework
### Removed

7
Makefile
View File

@ -83,13 +83,6 @@ fmt:
test:
$(V) test $(SRC_DIR)
# Build & patch the V compiler
.PHONY: v
v: v/v
v/v:
git clone --single-branch https://git.rustybever.be/vieter-v/v v
make -C v
.PHONY: clean
clean:
rm -rf 'data' 'vieter' 'dvieter' 'pvieter' 'vieter.c' 'pkg' 'src/vieter' *.pkg.tar.zst 'suvieter' 'afvieter' '$(SRC_DIR)/_docs' 'docs/public'

13
README.md
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@ -37,7 +37,6 @@ that.
Besides a V installer, Vieter also requires the following libraries to work:
* gc
* libarchive
* openssl
* sqlite3
@ -48,15 +47,9 @@ update`.
### Compiler
Vieter compiles with the standard Vlang compiler. However, I do maintain a
[mirror](https://git.rustybever.be/vieter-v/v). This is to ensure my CI does
not break without reason, as I control when & how frequently the mirror is
updated to reflect the official repository.
If you encounter issues using the latest V compiler, try using my mirror
instead. `make v` will clone the repository & build the mirror. Afterwards,
prepending any make command with `V_PATH=v/v` tells make to use the locally
compiled mirror instead.
I used to maintain a mirror that tracked the latest master, but nowadays, I
maintain a Docker image containing the specific compiler version that Vieter
builds with. Currently, this is V 0.3.
## Contributing

2
src/client/client.v
View File

@ -2,7 +2,7 @@ module client
import net.http { Method }
import net.urllib
import response { Response }
import web.response { Response }
import json
pub struct Client {

2
src/client/logs.v
View File

@ -2,7 +2,7 @@ module client
import models { BuildLog, BuildLogFilter }
import net.http { Method }
import response { Response }
import web.response { Response }
import time
// get_build_logs returns all build logs.

2
src/client/targets.v
View File

@ -2,7 +2,7 @@ module client
import models { Target, TargetFilter }
import net.http { Method }
import response { Response }
import web.response { Response }
// get_targets returns a list of targets, given a filter object.
pub fn (c &Client) get_targets(filter TargetFilter) ?[]Target {

26
src/server/api_logs.v
View File

@ -3,7 +3,7 @@ module server
import web
import net.http
import net.urllib
import response { new_data_response, new_response }
import web.response { new_data_response, new_response }
import db
import time
import os
@ -12,12 +12,8 @@ import models { BuildLog, BuildLogFilter }
// v1_get_logs returns all build logs in the database. A 'target' query param can
// optionally be added to limit the list of build logs to that repository.
['/api/v1/logs'; get]
['/api/v1/logs'; auth; get]
fn (mut app App) v1_get_logs() web.Result {
if !app.is_authorized() {
return app.json(http.Status.unauthorized, new_response('Unauthorized.'))
}
filter := models.from_params<BuildLogFilter>(app.query) or {
return app.json(http.Status.bad_request, new_response('Invalid query parameters.'))
}
@ -27,24 +23,16 @@ fn (mut app App) v1_get_logs() web.Result {
}
// v1_get_single_log returns the build log with the given id.
['/api/v1/logs/:id'; get]
['/api/v1/logs/:id'; auth; get]
fn (mut app App) v1_get_single_log(id int) web.Result {
if !app.is_authorized() {
return app.json(http.Status.unauthorized, new_response('Unauthorized.'))
}
log := app.db.get_build_log(id) or { return app.not_found() }
return app.json(http.Status.ok, new_data_response(log))
}
// v1_get_log_content returns the actual build log file for the given id.
['/api/v1/logs/:id/content'; get]
['/api/v1/logs/:id/content'; auth; get]
fn (mut app App) v1_get_log_content(id int) web.Result {
if !app.is_authorized() {
return app.json(http.Status.unauthorized, new_response('Unauthorized.'))
}
log := app.db.get_build_log(id) or { return app.not_found() }
file_name := log.start_time.custom_format('YYYY-MM-DD_HH-mm-ss')
full_path := os.join_path(app.conf.data_dir, logs_dir_name, log.target_id.str(), log.arch,
@ -63,12 +51,8 @@ fn parse_query_time(query string) ?time.Time {
}
// v1_post_log adds a new log to the database.
['/api/v1/logs'; post]
['/api/v1/logs'; auth; post]
fn (mut app App) v1_post_log() web.Result {
if !app.is_authorized() {
return app.json(http.Status.unauthorized, new_response('Unauthorized.'))
}
// Parse query params
start_time_int := app.query['startTime'].int()

32
src/server/api_targets.v
View File

@ -2,17 +2,13 @@ module server
import web
import net.http
import response { new_data_response, new_response }
import web.response { new_data_response, new_response }
import db
import models { Target, TargetArch, TargetFilter }
// v1_get_targets returns the current list of targets.
['/api/v1/targets'; get]
['/api/v1/targets'; auth; get]
fn (mut app App) v1_get_targets() web.Result {
if !app.is_authorized() {
return app.json(http.Status.unauthorized, new_response('Unauthorized.'))
}
filter := models.from_params<TargetFilter>(app.query) or {
return app.json(http.Status.bad_request, new_response('Invalid query parameters.'))
}
@ -22,24 +18,16 @@ fn (mut app App) v1_get_targets() web.Result {
}
// v1_get_single_target returns the information for a single target.
['/api/v1/targets/:id'; get]
['/api/v1/targets/:id'; auth; get]
fn (mut app App) v1_get_single_target(id int) web.Result {
if !app.is_authorized() {
return app.json(http.Status.unauthorized, new_response('Unauthorized.'))
}
repo := app.db.get_target(id) or { return app.not_found() }
return app.json(http.Status.ok, new_data_response(repo))
}
// v1_post_target creates a new target from the provided query string.
['/api/v1/targets'; post]
['/api/v1/targets'; auth; post]
fn (mut app App) v1_post_target() web.Result {
if !app.is_authorized() {
return app.json(http.Status.unauthorized, new_response('Unauthorized.'))
}
mut params := app.query.clone()
// If a repo is created without specifying the arch, we assume it's meant
@ -63,24 +51,16 @@ fn (mut app App) v1_post_target() web.Result {
}
// v1_delete_target removes a given target from the server's list.
['/api/v1/targets/:id'; delete]
['/api/v1/targets/:id'; auth; delete]
fn (mut app App) v1_delete_target(id int) web.Result {
if !app.is_authorized() {
return app.json(http.Status.unauthorized, new_response('Unauthorized.'))
}
app.db.delete_target(id)
return app.json(http.Status.ok, new_response('Repo removed successfully.'))
}
// v1_patch_target updates a target's data with the given query params.
['/api/v1/targets/:id'; patch]
['/api/v1/targets/:id'; auth; patch]
fn (mut app App) v1_patch_target(id int) web.Result {
if !app.is_authorized() {
return app.json(http.Status.unauthorized, new_response('Unauthorized.'))
}
app.db.update_target(id, app.query)
if 'arch' in app.query {

12
src/server/auth.v
View File

@ -1,12 +0,0 @@
module server
import net.http
// is_authorized checks whether the provided API key is correct.
fn (mut app App) is_authorized() bool {
x_header := app.req.header.get_custom('X-Api-Key', http.HeaderQueryConfig{ exact: true }) or {
return false
}
return x_header.trim_space() == app.conf.api_key
}

19
src/server/repo.v
View File

@ -7,13 +7,13 @@ import time
import rand
import util
import net.http
import response { new_response }
import web.response { new_response }
// healthcheck just returns a string, but can be used to quickly check if the
// server is still responsive.
['/health'; get]
pub fn (mut app App) healthcheck() web.Result {
return app.json(http.Status.ok, new_response('Healthy.'))
return app.json(.ok, new_response('Healthy.'))
}
// get_repo_file handles all Pacman-related routes. It returns both the
@ -45,25 +45,12 @@ fn (mut app App) get_repo_file(repo string, arch string, filename string) web.Re
full_path = os.join_path(app.repo.repos_dir, repo, arch, filename, 'desc')
}
// Scuffed way to respond to HEAD requests
if app.req.method == http.Method.head {
if os.exists(full_path) {
return app.status(http.Status.ok)
}
return app.not_found()
}
return app.file(full_path)
}
// put_package handles publishing a package to a repository.
['/:repo/publish'; post]
['/:repo/publish'; auth; post]
fn (mut app App) put_package(repo string) web.Result {
if !app.is_authorized() {
return app.json(http.Status.unauthorized, new_response('Unauthorized.'))
}
mut pkg_path := ''
if length := app.req.header.get(.content_length) {

20
src/server/repo_remove.v
View File

@ -2,15 +2,11 @@ module server
import web
import net.http
import response { new_response }
import web.response { new_response }
// delete_package tries to remove the given package.
['/:repo/:arch/:pkg'; delete]
['/:repo/:arch/:pkg'; auth; delete]
fn (mut app App) delete_package(repo string, arch string, pkg string) web.Result {
if !app.is_authorized() {
return app.json(http.Status.unauthorized, new_response('Unauthorized.'))
}
res := app.repo.remove_pkg_from_arch_repo(repo, arch, pkg, true) or {
app.lerror('Error while deleting package: $err.msg()')
@ -29,12 +25,8 @@ fn (mut app App) delete_package(repo string, arch string, pkg string) web.Result
}
// delete_arch_repo tries to remove the given arch-repo.
['/:repo/:arch'; delete]
['/:repo/:arch'; auth; delete]
fn (mut app App) delete_arch_repo(repo string, arch string) web.Result {
if !app.is_authorized() {
return app.json(http.Status.unauthorized, new_response('Unauthorized.'))
}
res := app.repo.remove_arch_repo(repo, arch) or {
app.lerror('Error while deleting arch-repo: $err.msg()')
@ -53,12 +45,8 @@ fn (mut app App) delete_arch_repo(repo string, arch string) web.Result {
}
// delete_repo tries to remove the given repo.
['/:repo'; delete]
['/:repo'; auth; delete]
fn (mut app App) delete_repo(repo string) web.Result {
if !app.is_authorized() {
return app.json(http.Status.unauthorized, new_response('Unauthorized.'))
}
res := app.repo.remove_repo(repo) or {
app.lerror('Error while deleting repo: $err.msg()')

1
src/server/server.v
View File

@ -73,6 +73,7 @@ pub fn server(conf Config) ? {
web.run(&App{
logger: logger
api_key: conf.api_key
conf: conf
repo: repo
db: db

133
src/web/consts.v 100644
View File

@ -0,0 +1,133 @@
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': 'Vieter'
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_401 = http.new_response(
status: .unauthorized
body: '401 Unauthorized'
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
)

6
src/web/parse.v
View File

@ -3,6 +3,10 @@ module web
import net.urllib
import net.http
// Method attributes that should be ignored when parsing, as they're used
// elsewhere.
const attrs_to_ignore = ['auth']
// Parsing function attributes for methods and path.
fn parse_attrs(name string, attrs []string) ?([]http.Method, string) {
if attrs.len == 0 {
@ -32,7 +36,7 @@ fn parse_attrs(name string, attrs []string) ?([]http.Method, string) {
}
i++
}
if x.len > 0 {
if x.len > 0 && x.any(!web.attrs_to_ignore.contains(it)) {
return IError(http.UnexpectedExtraAttributeError{
attributes: x
})

0
src/response/response.v → src/web/response/response.v
View File

440
src/web/web.v
View File

@ -12,146 +12,25 @@ 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
// API key used when authenticating requests
api_key string
// TODO Response
pub mut:
done bool
// 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
// 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
// REQUEST
static_files map[string]string
static_mime_types map[string]string
// Map containing query params for the route.
@ -161,14 +40,13 @@ 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 {
@ -188,50 +66,92 @@ 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
}
ctx.done = true
// 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
// build header
header := http.new_header_from_map({
http.CommonHeader.content_type: mimetype
http.CommonHeader.content_length: res.len.str()
}).join(ctx.header)
// 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 resp := http.Response{
header: header.join(web.headers_close)
body: res
mut to_write := bytes_read
for to_write > 0 {
bytes_written := ctx.conn.write(buf[bytes_read - to_write..bytes_read]) or { break }
to_write = to_write - bytes_written
}
}
resp.set_version(.v1_1)
}
// send_custom_response sends the given http.Response to the client. It can be
// used to overwrite the Context object & send a completely custom
// http.Response instead.
fn (mut ctx Context) send_custom_response(resp &http.Response) ? {
ctx.send_string(resp.bytestr())?
}
// 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.new_response(
header: ctx.header.join(headers_close)
)
resp.header.add(.content_type, ctx.content_type)
resp.set_status(ctx.status)
send_string(mut ctx.conn, resp.bytestr()) or { return false }
ctx.send_custom_response(resp)?
}
// send is a convenience function for sending the HTTP response with an empty
// body.
pub fn (mut ctx Context) send() bool {
return ctx.send_response('')
}
// 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
}
// text responds to a request with some plaintext.
pub fn (mut ctx Context) text(status http.Status, s string) Result {
ctx.status = status
// 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 }
ctx.send_response_to_client('text/plain', s)
return true
}
return Result{}
// is_authenticated checks whether the request passes a correct API key.
pub fn (ctx &Context) is_authenticated() bool {
if provided_key := ctx.req.header.get_custom('X-Api-Key') {
return provided_key == ctx.api_key
}
return false
}
// 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{}
}
@ -239,119 +159,112 @@ 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 {
// If the file doesn't exist, just respond with a 404
if !os.is_file(f_path) {
ctx.status = .not_found
ctx.send()
return Result{}
}
if !os.is_file(f_path) {
return ctx.not_found()
ctx.header.add(.accept_ranges, 'bytes')
file_size := os.file_size(f_path)
ctx.header.add(http.CommonHeader.content_length, file_size.str())
// A HEAD request only returns the size of the file.
if ctx.req.method == .head {
ctx.send()
return Result{}
}
// ext := os.file_ext(f_path)
// data := os.read_file(f_path) or {
// eprint(err.msg())
// ctx.server_error(500)
// return Result{}
// }
// content_type := web.mime_types[ext]
// if content_type == '' {
// eprintln('no MIME type found for extension $ext')
// ctx.server_error(500)
// return Result{}
// }
// First, we return the headers for the request
// 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{}
}
// build header
header := http.new_header_from_map({
// http.CommonHeader.content_type: content_type
http.CommonHeader.content_length: file_size.str()
}).join(ctx.header)
mut resp := http.Response{
header: header.join(web.headers_close)
defer {
file.close()
}
resp.set_version(.v1_1)
resp.set_status(ctx.status)
send_string(mut ctx.conn, resp.bytestr()) or { return Result{} }
mut buf := []u8{len: 1_000_000}
mut bytes_left := file_size
// Currently, this only supports a single provided range, e.g.
// bytes=0-1023, and not multiple ranges, e.g. bytes=0-50, 100-150
if range_str := ctx.req.header.get(.range) {
mut parts := range_str.split_nth('=', 2)
// 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
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
// We only support the 'bytes' range type
if parts[0] != 'bytes' {
ctx.status = .requested_range_not_satisfiable
ctx.header.delete(.content_length)
ctx.send()
return Result{}
}
parts = parts[1].split_nth('-', 2)
start := parts[0].i64()
end := if parts[1] == '' { file_size - 1 } else { parts[1].u64() }
// Either the actual number 0 or the result of an invalid integer
if end == 0 {
ctx.status = .requested_range_not_satisfiable
ctx.header.delete(.content_length)
ctx.send()
return Result{}
}
// Move cursor to start of data to read
file.seek(start, .start) or {
ctx.server_error(500)
return Result{}
}
length := end - u64(start) + 1
ctx.status = .partial_content
ctx.header.set(.content_length, length.str())
ctx.send_reader_response(mut file, length)
} else {
ctx.send_reader_response(mut file, file_size)
}
ctx.done = true
return Result{}
}
// status responds with an empty textual response, essentially only returning
// the given status code.
pub fn (mut ctx Context) status(status http.Status) Result {
return ctx.text(status, '')
ctx.status = status
ctx.send()
return Result{}
}
// server_error Response a server error
pub fn (mut ctx Context) server_error(ecode int) Result {
$if debug {
eprintln('> ctx.server_error ecode: $ecode')
}
if ctx.done {
return Result{}
}
send_string(mut ctx.conn, web.http_500.bytestr()) or {}
ctx.send_custom_response(http_500) or {}
return Result{}
}
// redirect Redirect to an url
pub fn (mut ctx Context) redirect(url string) Result {
if ctx.done {
return Result{}
}
ctx.done = true
mut resp := web.http_302
mut resp := http_302
resp.header = resp.header.join(ctx.header)
resp.header.add(.location, url)
send_string(mut ctx.conn, resp.bytestr()) or { return Result{} }
ctx.send_custom_response(resp) or {}
return Result{}
}
// not_found Send an not_found response
pub fn (mut ctx Context) not_found() Result {
return ctx.status(http.Status.not_found)
}
ctx.send_custom_response(http_404) or {}
// add_header Adds an header to the response with key and val
pub fn (mut ctx Context) add_header(key string, val string) {
ctx.header.add_custom(key, val) or {}
}
// get_header Returns the header data from the key
pub fn (ctx &Context) get_header(key string) string {
return ctx.req.header.get_custom(key) or { '' }
return Result{}
}
interface DbInterface {
@ -478,6 +391,7 @@ fn handle_conn<T>(mut conn net.TcpConn, mut app T, routes map[string]Route) {
static_mime_types: app.static_mime_types
reader: reader
logger: app.logger
api_key: app.api_key
}
// Calling middleware...
@ -496,31 +410,27 @@ fn handle_conn<T>(mut conn net.TcpConn, mut app T, routes map[string]Route) {
// Used for route matching
route_words := route.path.split('/').filter(it != '')
// Route immediate matches first
// Route immediate matches & index files first
// For example URL `/register` matches route `/:user`, but `fn register()`
// should be called first.
if !route.path.contains('/:') && url_words == route_words {
// We found a match
if head.method == .post && method.args.len > 0 {
// TODO implement POST requests
// Populate method args with form values
// mut args := []string{cap: method.args.len}
// for param in method.args {
// args << form[param.name]
// }
// app.$method(args)
} else {
app.$method()
if (!route.path.contains('/:') && url_words == route_words)
|| (url_words.len == 0 && route_words == ['index'] && method.name == 'index') {
// Check whether the request is authorised
if 'auth' in method.attrs && !app.is_authenticated() {
conn.write(http_401.bytes()) or {}
return
}
return
}
if url_words.len == 0 && route_words == ['index'] && method.name == 'index' {
// We found a match
app.$method()
return
}
} else if params := route_matches(url_words, route_words) {
// Check whether the request is authorised
if 'auth' in method.attrs && !app.is_authenticated() {
conn.write(http_401.bytes()) or {}
return
}
if params := route_matches(url_words, route_words) {
method_args := params.clone()
if method_args.len != method.args.len {
eprintln('warning: uneven parameters count ($method.args.len) in `$method.name`, compared to the web route `$method.attrs` ($method_args.len)')
@ -532,7 +442,7 @@ 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
@ -578,28 +488,6 @@ fn route_matches(url_words []string, route_words []string) ?[]string {
return params
}
// ip Returns the ip address from the current user
pub fn (ctx &Context) ip() string {
mut ip := ctx.req.header.get(.x_forwarded_for) or { '' }
if ip == '' {
ip = ctx.req.header.get_custom('X-Real-Ip') or { '' }
}
if ip.contains(',') {
ip = ip.all_before(',')
}
if ip == '' {
ip = ctx.conn.peer_ip() or { '' }
}
return ip
}
// 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.
// It used by `vlib/v/gen/c/str_intp.v:130` for string interpolation inside web templates
// TODO: move it to template render