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MIME multipart and multipart/form-data support for Crystal

License: MIT License

Crystal 100.00%

crystal multipart form-data

multipart.cr's Introduction

This shard been merged into the crystal standard library. Please use HTTP::FormData and HTTP::Multipart.

multipart.cr

Shard which adds multipart support to crystal's stdlib.

Installation

Add this to your application's shard.yml:

dependencies:
  multipart:
    github: RX14/multipart.cr

Usage

require "multipart"

# Use HTTP::Multipart and HTTP::FormData

See the docs for code examples.

Development

TODO: Write development instructions here

Contributing

Fork it ( https://github.com/RX14/multipart.cr/fork )
Create your feature branch (git checkout -b my-new-feature)
Commit your changes (git commit -am 'Add some feature')
Push to the branch (git push origin my-new-feature)
Create a new Pull Request

Contributors

RX14 - creator, maintainer

multipart.cr's People

Contributors

Stargazers

Watchers

Forkers

sdogruyol

multipart.cr's Issues

Multipart::FormData::Generator#field gives empty body when passed an Int as value

IO::Memory.new also provides a version which accepts an Int for size,
that will give us an empty body part (not what we expected).

Crystal 0.20.3 Error

This works in Crystal 0.20.1 and 0.17.3

require "kemal"

post "/upload" do |env|
  parse_multipart(env) do |f|
    file_path = File.join Dir.current, "image.png"
    File.open(file_path, "w") do |file|
      IO.copy(f.data, file)
    end
    "Upload complete"
  end
end

Kemal.run

Error

Exception: header content contains invalid character '\u{0}' (ArgumentError)
0x10a0936c2: *CallStack::unwind:Array(Pointer(Void)) at ??
0x10a093661: *CallStack#initialize:Array(Pointer(Void)) at ??
0x10a093638: *CallStack::new:CallStack at ??
0x10a090651: *raise<Exception+>:NoReturn at ??
0x10a09048d: ~procProc(HTTP::Server::Context, Nil)@src/app.cr:3 at ??
0x10a08f4db: ~procProc(HTTP::Server::Context, String)@lib/kemal/src/kemal/route.cr:11 at ??
0x10a15195b: *Kemal::RouteHandler#process_request<HTTP::Server::Context>:HTTP::Server::Context at ??
0x10a1518d9: *Kemal::RouteHandler#call<HTTP::Server::Context>:HTTP::Server::Context at ??
0x10a1666d8: *Kemal::StaticFileHandler@HTTP::Handler#call_next<HTTP::Server::Context>:(Array(IO) | Bool | HTTP::Server::Context | HTTP::Server::Response | HTTP::Server::Response::Output | IO::FileDescriptor+ | Int32 | Nil) at ??
0x10a1655fd: *Kemal::StaticFileHandler#call<HTTP::Server::Context>:(Array(IO) | Bool | HTTP::Server::Context | HTTP::Server::Response | HTTP::Server::Response::Output | IO::FileDescriptor+ | Int32 | Nil) at ??
0x10a164c4f: *Kemal::CommonExceptionHandler@HTTP::Handler#call_next<HTTP::Server::Context>:(Array(IO) | Bool | HTTP::Server::Context | HTTP::Server::Response | HTTP::Server::Response::Output | IO::FileDescriptor+ | Int32 | Nil) at ??
0x10a164790: *Kemal::CommonExceptionHandler#call<HTTP::Server::Context>:(Array(IO) | Bool | HTTP::Server::Context | HTTP::Server::Response | HTTP::Server::Response::Output | IO::FileDescriptor+ | Int32 | Nil) at ??
0x10a163d76: *Kemal::CommonLogHandler@HTTP::Handler#call_next<HTTP::Server::Context>:(Array(IO) | Bool | HTTP::Server::Context | HTTP::Server::Response | HTTP::Server::Response::Output | IO::FileDescriptor+ | Int32 | Nil) at ??
0x10a16188d: *Kemal::CommonLogHandler#call<HTTP::Server::Context>:HTTP::Server::Context at ??
0x10a15134e: *Kemal::InitHandler@HTTP::Handler#call_next<HTTP::Server::Context>:(Array(IO) | Bool | HTTP::Server::Context | HTTP::Server::Response | HTTP::Server::Response::Output | IO::FileDescriptor+ | Int32 | Nil) at ??
0x10a150f9a: *Kemal::InitHandler#call<HTTP::Server::Context>:(Array(IO) | Bool | HTTP::Server::Context | HTTP::Server::Response | HTTP::Server::Response::Output | IO::FileDescriptor+ | Int32 | Nil) at ??
0x10a16cd09: *HTTP::Server::RequestProcessor#process<(OpenSSL::SSL::Socket::Server | TCPSocket+), (OpenSSL::SSL::Socket::Server | TCPSocket+), IO::FileDescriptor>:Nil at ??
0x10a16c705: *HTTP::Server::RequestProcessor#process<(OpenSSL::SSL::Socket::Server | TCPSocket+), (OpenSSL::SSL::Socket::Server | TCPSocket+)>:Nil at ??
0x10a167476: *HTTP::Server#handle_client<(TCPSocket+ | Nil)>:Nil at ??
0x10a0917c6: ~procProc(Nil)@/usr/local/Cellar/crystal-lang/0.20.3/src/http/server.cr:148 at ??
0x10a09d654: *Fiber#run:(IO::FileDescriptor | Nil) at ??
0x10a08ce99: ~proc2Proc(Fiber, (IO::FileDescriptor | Nil))@/usr/local/Cellar/crystal-lang/0.20.3/src/fiber.cr:29 at ??

To run

 curl -F "image1=@/Users/serdar/Desktop/Screenshots/logo.png" http://localhost:3000/upload

Documentation down

The https://crystal-docs.org/ site seems to be down since at least 2-3 weeks ago.

Downloading large file (700 Mo)

Hello !

I'm using the last Kemal version, which use your multipart lib.
Seems like a problem.

My code was something like

require "kemal"
Kemal.run

It may result as a segfault (caused by a IO -> String ?) if the file is too big.

GC Warning: Repeated allocation of very large block (appr. size 268439552):
    May lead to memory leak and poor performance
GC Warning: Failed to expand heap by 1076621312 bytes
GC Warning: Failed to expand heap by 1073745920 bytes
GC Warning: Out of Memory! Heap size: 1049 MiB. Returning NULL!
GC Warning: Failed to expand heap by 572706816 bytes
GC Warning: Failed to expand heap by 570650624 bytes
GC Warning: Out of Memory! Heap size: 1049 MiB. Returning NULL!
Invalid memory access (signal 11) at address 0x4
[4777829] *CallStack::print_backtrace:Int32 +117
[4701048] __crystal_sigfault_handler +56
[139970919276672] ???
[4785866] *String::Builder#to_s:String +154
[5094121] *HTTP::FixedLengthContent +249
[5568427] *HTTP::Request::from_io<(OpenSSL::SSL::Socket::Server | TCPSocket+)>:(HTTP::Request | HTTP::Request::BadRequest | Nil) +2251
[5652644] *HTTP::Server::RequestProcessor#process<(OpenSSL::SSL::Socket::Server | TCPSocket+), (OpenSSL::SSL::Socket::Server | TCPSocket+), IO::FileDescriptor>:Nil +132
[5652505] *HTTP::Server::RequestProcessor#process<(OpenSSL::SSL::Socket::Server | TCPSocket+), (OpenSSL::SSL::Socket::Server | TCPSocket+)>:Nil +57
[5652192] *HTTP::Server#handle_client<(TCPSocket+ | Nil)>:Nil +128
[4727443] ~procProc(Nil) +19
[4771166] *Fiber#run:(IO::FileDescriptor | Nil) +174
[4699878] ~proc2Proc(Fiber, (IO::FileDescriptor | Nil)) +6
[0] ???

Thank you for your work anyway ;) I'm following the PR on crystal-lang

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