Compare commits
45 Commits
4427016094
...
675c9b78ff
Author | SHA1 | Date |
---|---|---|
Jef Roosens | 675c9b78ff | |
Jef Roosens | 8aad8b2d0f | |
Jef Roosens | ce0abcdc25 | |
Jef Roosens | 94da7584aa | |
Jef Roosens | 44ba4b053e | |
Jef Roosens | 7b195c75b0 | |
Jef Roosens | dc0a3a7349 | |
Jef Roosens | e438bd045c | |
Jef Roosens | 8bdf52da0d | |
Jef Roosens | d53a949946 | |
Jef Roosens | 89cc41f28a | |
Jef Roosens | 8e0477c34b | |
Jef Roosens | dde83584a7 | |
Jef Roosens | 3aa0ace863 | |
Jef Roosens | e44b7d0e5f | |
Jef Roosens | 4ae1355cec | |
Jef Roosens | cda61f5433 | |
Jef Roosens | a0954e8d07 | |
Jef Roosens | 58a8645c6c | |
Jef Roosens | cc9dc6aec5 | |
Jef Roosens | c59dd29648 | |
Jef Roosens | 1a7686003c | |
Jef Roosens | 8dc8ef8e2d | |
Jef Roosens | 876e5a7de4 | |
Jef Roosens | 8ae59f1031 | |
Jef Roosens | f3da5c78ef | |
Jef Roosens | ad243ea9f5 | |
Jef Roosens | 8ec667af3b | |
Jef Roosens | 799821d9fc | |
Jef Roosens | 13ccfef94d | |
Jef Roosens | 3c1e62330c | |
Jef Roosens | e8bb089f5c | |
Jef Roosens | 77b62825a6 | |
Jef Roosens | 8c21ccf58b | |
Jef Roosens | d119f85260 | |
Jef Roosens | e04f6e170e | |
Jef Roosens | 4c2b85d436 | |
Jef Roosens | e59ee38ae2 | |
Jef Roosens | 3c74200bbd | |
Jef Roosens | c7b3f68c2e | |
Jef Roosens | f79ba2818c | |
Jef Roosens | 8a3be2b07c | |
Jef Roosens | 20b6b593eb | |
Jef Roosens | 1587b923c1 | |
Jef Roosens | 380605ea08 |
|
@ -2,14 +2,15 @@
|
|||
|
||||
!src/
|
||||
!include/
|
||||
!Makefile
|
||||
!config.mk
|
||||
|
||||
!lsm/src/
|
||||
!lsm/include/
|
||||
!lsm/Makefile
|
||||
!lsm/config.mk
|
||||
|
||||
!thirdparty/include
|
||||
!thirdparty/src
|
||||
|
||||
!Makefile
|
||||
!config.mk
|
||||
!lnm/src/
|
||||
!lnm/include/
|
||||
!lnm/Makefile
|
||||
!lnm/config.mk
|
||||
|
|
|
@ -0,0 +1,3 @@
|
|||
[submodule "lnm"]
|
||||
path = lnm
|
||||
url = https://git.rustybever.be/Chewing_Bever/lnm
|
|
@ -1,6 +1,7 @@
|
|||
matrix:
|
||||
PLATFORM:
|
||||
- 'linux/amd64'
|
||||
- 'linux/arm64'
|
||||
|
||||
platform: ${PLATFORM}
|
||||
|
||||
|
@ -34,13 +35,13 @@ pipeline:
|
|||
commands:
|
||||
- apk add --no-cache minio-client
|
||||
- mcli alias set rb 'https://s3.rustybever.be' "$MINIO_ACCESS_KEY" "$MINIO_SECRET_KEY"
|
||||
- mcli cp build/lander landerctl/build/landerctl "rb/lander/commits/$CI_COMMIT_SHA/"
|
||||
- mcli cp build/lander "rb/lander/commits/$CI_COMMIT_SHA/lander-$(echo '${PLATFORM}' | sed 's:/:-:g')"
|
||||
- mcli cp landerctl/build/landerctl "rb/lander/commits/$CI_COMMIT_SHA/landerctl-$(echo '${PLATFORM}' | sed 's:/:-:g')"
|
||||
secrets:
|
||||
- minio_access_key
|
||||
- minio_secret_key
|
||||
when:
|
||||
branch:
|
||||
exclude: [ release/* ]
|
||||
branch: dev
|
||||
event: push
|
||||
|
||||
publish-rel:
|
||||
|
|
25
CHANGELOG.md
25
CHANGELOG.md
|
@ -7,6 +7,31 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
|
|||
|
||||
## [Unreleased](https://git.rustybever.be/Chewing_Bever/lander/src/branch/dev)
|
||||
|
||||
## [0.2.1](https://git.rustybever.be/Chewing_Bever/lander/src/tag/0.2.1)
|
||||
|
||||
### Added
|
||||
|
||||
* LNM - Lander Network Module
|
||||
* Rewrite of the event loop & HTTP loop
|
||||
* Fully independent library, maintained in its own repository
|
||||
* Numerous improvements
|
||||
* Streaming of headers
|
||||
* Allow custom & an arbitrary number of response headers
|
||||
* Better API for adding routes
|
||||
* State machine HTTP loop
|
||||
* Automatically support HEAD requests for all GET requests
|
||||
* Event loop uses `epoll` instead of `poll`
|
||||
* Configurable multithreading using `epoll`
|
||||
* Trie-based router (no more RegEx)
|
||||
* Landerctl
|
||||
* `-c` flag to use custom config file (useful for testing)
|
||||
|
||||
## Removed
|
||||
|
||||
* Content-Disposition header for files
|
||||
* Secure routes with a specified key (e.g. `/sl/:key`), as these were identical
|
||||
to `/s/:key` routes
|
||||
|
||||
## [0.2.0](https://git.rustybever.be/Chewing_Bever/lander/src/tag/0.2.0)
|
||||
|
||||
### Added
|
||||
|
|
18
Makefile
18
Makefile
|
@ -10,14 +10,13 @@ BIN := $(BUILD_DIR)/$(BIN_FILENAME)
|
|||
|
||||
SRCS != find '$(SRC_DIR)' -iname '*.c'
|
||||
SRCS_TEST != find '$(TEST_DIR)' -iname '*.c'
|
||||
SRCS_THIRDPARTY != find '$(THIRDPARTY_DIR)/src' -iname '*.c'
|
||||
|
||||
SRCS_H != find include -iname '*.h'
|
||||
SRCS_H_INTERNAL != find $(SRC_DIR) -iname '*.h'
|
||||
|
||||
OBJS := $(SRCS:%=$(BUILD_DIR)/%.o) $(SRCS_THIRDPARTY:%=$(BUILD_DIR)/%.o)
|
||||
OBJS := $(SRCS:%=$(BUILD_DIR)/%.o)
|
||||
OBJS_TEST := $(SRCS_TEST:%=$(BUILD_DIR)/%.o)
|
||||
DEPS := $(SRCS:%=$(BUILD_DIR)/%.d) $(SRCS_THIRDPARTY:%=$(BUILD_DIR)/%.d) $(SRCS_TEST:%=$(BUILD_DIR)/%.d)
|
||||
DEPS := $(SRCS:%=$(BUILD_DIR)/%.d) $(SRCS_TEST:%=$(BUILD_DIR)/%.d)
|
||||
|
||||
BINS_TEST := $(OBJS_TEST:%.c.o=%)
|
||||
TARGETS_TEST := $(BINS_TEST:%=test-%)
|
||||
|
@ -39,17 +38,17 @@ objs: $(OBJS)
|
|||
liblsm:
|
||||
$(MAKE) -C lsm
|
||||
|
||||
$(BIN): liblsm $(OBJS)
|
||||
.PHONY: liblnm
|
||||
liblnm:
|
||||
$(MAKE) -C lnm
|
||||
|
||||
$(BIN): liblsm liblnm $(OBJS)
|
||||
$(CC) -o $@ $(OBJS) $(_LDFLAGS)
|
||||
|
||||
$(BUILD_DIR)/$(SRC_DIR)/%.c.o: $(SRC_DIR)/%.c
|
||||
mkdir -p $(dir $@)
|
||||
$(CC) $(_CFLAGS) -c $< -o $@
|
||||
|
||||
$(BUILD_DIR)/$(THIRDPARTY_DIR)/%.c.o: $(THIRDPARTY_DIR)/%.c
|
||||
mkdir -p $(dir $@)
|
||||
$(CC) $(_CFLAGS) -c $< -o $@
|
||||
|
||||
.PHONY: bin-docker
|
||||
bin-docker:
|
||||
docker build -t lander .
|
||||
|
@ -68,7 +67,7 @@ run: $(BIN)
|
|||
valgrind: $(BIN)
|
||||
LANDER_API_KEY=test \
|
||||
LANDER_DATA_DIR=data \
|
||||
valgrind '$(BUILD_DIR)/$(BIN_FILENAME)'
|
||||
valgrind --track-origins=yes '$(BUILD_DIR)/$(BIN_FILENAME)'
|
||||
|
||||
.PHONY: test
|
||||
test: $(TARGETS_TEST)
|
||||
|
@ -135,6 +134,7 @@ check:
|
|||
clean:
|
||||
rm -rf $(BUILD_DIR)
|
||||
$(MAKE) -C lsm clean
|
||||
$(MAKE) -C lnm clean
|
||||
$(MAKE) -C landerctl clean
|
||||
|
||||
.PHONY: bear
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
VERSION := 0.2.0
|
||||
VERSION := 0.2.1
|
||||
|
||||
BIN_FILENAME = lander
|
||||
|
||||
|
@ -7,9 +7,9 @@ SRC_DIR = src
|
|||
TEST_DIR = test
|
||||
THIRDPARTY_DIR = thirdparty
|
||||
|
||||
INC_DIRS = include $(THIRDPARTY_DIR)/include lsm/include
|
||||
LIBS = m lsm
|
||||
LIB_DIRS = ./lsm/build
|
||||
INC_DIRS = include $(THIRDPARTY_DIR)/include lsm/include lnm/include
|
||||
LIBS = lsm lnm
|
||||
LIB_DIRS = ./lsm/build ./lnm/build
|
||||
|
||||
# -MMD: generate a .d file for every source file. This file can be imported by
|
||||
# make and makes make aware that a header file has been changed, ensuring an
|
||||
|
|
|
@ -1,137 +0,0 @@
|
|||
#ifndef LANDER_EVENT_LOOP
|
||||
#define LANDER_EVENT_LOOP
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <stdint.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
// Size of the read and write buffers for each connection, in bytes
|
||||
#define EVENT_LOOP_BUFFER_SIZE 2048
|
||||
|
||||
/**
|
||||
* State of a connection
|
||||
*/
|
||||
typedef enum {
|
||||
event_loop_conn_state_req = 0,
|
||||
event_loop_conn_state_res = 1,
|
||||
event_loop_conn_state_end = 2,
|
||||
} event_loop_conn_state;
|
||||
|
||||
/**
|
||||
* Represents an active connection managed by the event loop
|
||||
*/
|
||||
typedef struct event_loop_conn {
|
||||
int fd;
|
||||
event_loop_conn_state state;
|
||||
// Read buffer
|
||||
size_t rbuf_size;
|
||||
size_t rbuf_read;
|
||||
uint8_t rbuf[EVENT_LOOP_BUFFER_SIZE];
|
||||
// Write buffer
|
||||
size_t wbuf_size;
|
||||
size_t wbuf_sent;
|
||||
uint8_t wbuf[EVENT_LOOP_BUFFER_SIZE];
|
||||
|
||||
// If true, the server will close the connection after the final write buffer
|
||||
// has been written
|
||||
bool close_after_write;
|
||||
// Context for a request
|
||||
void *ctx;
|
||||
} event_loop_conn;
|
||||
|
||||
/*
|
||||
* Main struct object representing the event loop
|
||||
*/
|
||||
typedef struct event_loop {
|
||||
event_loop_conn **connections;
|
||||
size_t connection_count;
|
||||
// Global context passed to every connection
|
||||
void *gctx;
|
||||
/**
|
||||
* Function to initialize a connection context.
|
||||
*
|
||||
* @param gctx global context of the event loop
|
||||
* @return pointer to the allocated object.
|
||||
*/
|
||||
void *(*ctx_init)(void *gctx);
|
||||
/**
|
||||
* Function to free a connection context object.
|
||||
*
|
||||
* @param ctx context to free
|
||||
*/
|
||||
void (*ctx_free)(void *ctx);
|
||||
/**
|
||||
* Function to process incoming data while in the req state.
|
||||
*
|
||||
* @param conn connection to process
|
||||
* @return whether the function can be called again immediately in the same
|
||||
* event loop cycle. This allows quicly processing multiple requests without
|
||||
* waiting for I/O.
|
||||
*/
|
||||
bool (*handle_data)(event_loop_conn *conn);
|
||||
/**
|
||||
* Function to process outgoing data while in the res state.
|
||||
*
|
||||
* @param conn connection to proces
|
||||
*/
|
||||
void (*write_data)(event_loop_conn *conn);
|
||||
} event_loop;
|
||||
|
||||
/*
|
||||
* Initialize a new connection struct
|
||||
*
|
||||
* @param el the event loop
|
||||
* @return pointer to the newly allocated connection struct
|
||||
*/
|
||||
event_loop_conn *event_loop_conn_init(event_loop *el);
|
||||
|
||||
/*
|
||||
* Free a connection struct
|
||||
*
|
||||
* @param el the event loop
|
||||
* @param conn connection struct to free
|
||||
*/
|
||||
void event_loop_conn_free(event_loop *el, event_loop_conn *conn);
|
||||
|
||||
/*
|
||||
* Handle I/O for a connection, be it reading input or writing output.
|
||||
*
|
||||
* @param el the event loop
|
||||
* @param conn the connection to process
|
||||
*/
|
||||
void event_loop_conn_io(event_loop *el, event_loop_conn *conn);
|
||||
|
||||
/*
|
||||
* Initialize a new event loop struct
|
||||
*
|
||||
* @return pointer to the newly allocated event loop struct
|
||||
*/
|
||||
event_loop *event_loop_init();
|
||||
|
||||
/*
|
||||
* Place a new connection into the event loop's internal array.
|
||||
*
|
||||
* @param el the event loop
|
||||
* @param conn connection to insert
|
||||
* @return 0 on success, -1 if the internal realloc failed.
|
||||
*/
|
||||
int event_loop_put(event_loop *el, event_loop_conn *conn);
|
||||
|
||||
/**
|
||||
* Accept a new connection for the given file descriptor.
|
||||
*
|
||||
* @param el the event loop
|
||||
* @param fd file descriptor for the connection
|
||||
* @return 0 if successful, negative value otherwise
|
||||
*/
|
||||
int event_loop_accept(event_loop *el, int fd);
|
||||
|
||||
/*
|
||||
* Run the event loop. This function never returns.
|
||||
*
|
||||
* @param el the event loop
|
||||
* @param port on what port to listen
|
||||
*/
|
||||
void event_loop_run(event_loop *el, int port);
|
||||
|
||||
#endif
|
|
@ -1,42 +0,0 @@
|
|||
#ifndef LANDER_HTTP_REQ
|
||||
#define LANDER_HTTP_REQ
|
||||
|
||||
#include <regex.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "http/types.h"
|
||||
#include "picohttpparser.h"
|
||||
|
||||
#define HTTP_MAX_ALLOWED_HEADERS 32
|
||||
#define HTTP_MAX_REGEX_GROUPS 4
|
||||
|
||||
/**
|
||||
* Struct representing the specific type of request
|
||||
*/
|
||||
typedef struct http_request {
|
||||
size_t len;
|
||||
int minor_version;
|
||||
http_method method;
|
||||
const char *path;
|
||||
size_t path_len;
|
||||
const char *query;
|
||||
size_t query_len;
|
||||
http_body body;
|
||||
regmatch_t regex_groups[HTTP_MAX_REGEX_GROUPS];
|
||||
struct phr_header headers[HTTP_MAX_ALLOWED_HEADERS];
|
||||
size_t num_headers;
|
||||
} http_request;
|
||||
|
||||
/**
|
||||
* Result of the HTTP parse function
|
||||
*/
|
||||
typedef enum http_parse_error {
|
||||
http_parse_error_ok = 0,
|
||||
http_parse_error_incomplete = 1,
|
||||
http_parse_error_invalid = 2,
|
||||
http_parse_error_unknown_method = 3
|
||||
} http_parse_error;
|
||||
|
||||
#endif
|
|
@ -1,69 +0,0 @@
|
|||
#ifndef LANDER_HTTP_RES
|
||||
#define LANDER_HTTP_RES
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <stdio.h>
|
||||
|
||||
#include "http/types.h"
|
||||
|
||||
/**
|
||||
* Struct describing a header for the response.
|
||||
*/
|
||||
typedef struct http_response_header {
|
||||
http_header type;
|
||||
const char *value;
|
||||
bool owned;
|
||||
} http_response_header;
|
||||
|
||||
/**
|
||||
* Struct representing an HTTP response.
|
||||
*/
|
||||
typedef struct http_response {
|
||||
http_status status;
|
||||
const char *head;
|
||||
size_t head_len;
|
||||
size_t head_written;
|
||||
http_body body;
|
||||
http_response_header headers[4];
|
||||
size_t header_count;
|
||||
} http_response;
|
||||
|
||||
/**
|
||||
* Set the request body to the given buffer.
|
||||
*
|
||||
* @param res response to modify
|
||||
* @param body pointer to the buf containing the body
|
||||
* @param body_len length of the body
|
||||
* @owned whether the body should be freed after processing the request
|
||||
*/
|
||||
void http_res_set_body_buf(http_response *res, const char *body,
|
||||
size_t body_len, bool owned);
|
||||
|
||||
/**
|
||||
* Set the request body to the given filename.
|
||||
*
|
||||
* @param res response to modify
|
||||
* @param filename path to the file to return
|
||||
*/
|
||||
void http_res_set_body_file(http_response *res, const char *filename);
|
||||
|
||||
/**
|
||||
* Add a header to the response.
|
||||
*
|
||||
* @param res response to modify
|
||||
* @param type type of the header
|
||||
* @param value value of the header
|
||||
* @param owned whether the value should be freed after processing the request
|
||||
*/
|
||||
void http_res_add_header(http_response *res, http_header type,
|
||||
const char *value, bool owned);
|
||||
|
||||
/**
|
||||
* Add a Content-Type header corresponding to the mime type.
|
||||
*
|
||||
* @param res response to modiy
|
||||
* @param mime_type mime type of the response
|
||||
*/
|
||||
void http_res_set_mime_type(http_response *res, http_mime_type mime_type);
|
||||
|
||||
#endif
|
|
@ -1,173 +0,0 @@
|
|||
#ifndef LANDER_HTTP_TYPES
|
||||
#define LANDER_HTTP_TYPES
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <stdio.h>
|
||||
#include <sys/types.h>
|
||||
|
||||
// Array mapping the http_request_method enum to strings
|
||||
extern const char *http_method_names[];
|
||||
extern const size_t http_method_names_len;
|
||||
|
||||
typedef enum http_method {
|
||||
http_get = 0,
|
||||
http_post = 1,
|
||||
http_put = 2,
|
||||
http_patch = 3,
|
||||
http_delete = 4
|
||||
} http_method;
|
||||
|
||||
// Array mapping the http_response_type enum to strings
|
||||
extern const char *http_status_names[][32];
|
||||
|
||||
typedef enum http_status {
|
||||
// 1xx
|
||||
http_continue = 100,
|
||||
http_switching_protocols = 101,
|
||||
http_processing = 102,
|
||||
http_early_hints = 103,
|
||||
// 2xx
|
||||
http_ok = 200,
|
||||
http_created = 201,
|
||||
http_accepted = 202,
|
||||
http_non_authoritative_information = 203,
|
||||
http_no_content = 204,
|
||||
http_reset_content = 205,
|
||||
http_partial_content = 206,
|
||||
http_multi_status = 207,
|
||||
http_already_reported = 208,
|
||||
// 3xx
|
||||
http_multiple_choices = 300,
|
||||
http_moved_permanently = 301,
|
||||
http_found = 302,
|
||||
http_see_other = 303,
|
||||
http_not_modified = 304,
|
||||
http_temporary_redirect = 307,
|
||||
http_permanent_redirect = 308,
|
||||
// 4xx
|
||||
http_bad_request = 400,
|
||||
http_unauthorized = 401,
|
||||
http_payment_required = 402,
|
||||
http_forbidden = 403,
|
||||
http_not_found = 404,
|
||||
http_method_not_allowed = 405,
|
||||
http_not_acceptable = 406,
|
||||
http_proxy_authentication_required = 407,
|
||||
http_request_timeout = 408,
|
||||
http_conflict = 409,
|
||||
http_gone = 410,
|
||||
http_length_required = 411,
|
||||
http_precondition_failed = 412,
|
||||
http_content_too_large = 413,
|
||||
http_uri_too_long = 414,
|
||||
http_unsupported_media_type = 415,
|
||||
http_range_not_satisfiable = 416,
|
||||
http_expection_failed = 417,
|
||||
http_im_a_teapot = 418,
|
||||
http_misdirected_request = 421,
|
||||
http_unprocessable_content = 422,
|
||||
http_locked = 423,
|
||||
http_failed_dependency = 424,
|
||||
http_too_early = 425,
|
||||
http_upgrade_required = 426,
|
||||
http_precondition_required = 428,
|
||||
http_too_many_requests = 429,
|
||||
http_request_header_fields_too_large = 431,
|
||||
// 5xx
|
||||
http_internal_server_error = 500,
|
||||
http_method_not_implemented = 501,
|
||||
http_bad_gateway = 502,
|
||||
http_service_unavailable = 503,
|
||||
http_gateway_timeout = 504,
|
||||
http_http_version_not_supported = 505,
|
||||
http_variant_also_negotiates = 506,
|
||||
http_insufficient_storage = 507,
|
||||
http_loop_detected = 508,
|
||||
http_not_extended = 510,
|
||||
http_network_authentication_required = 511
|
||||
} http_status;
|
||||
|
||||
// Array mapping the http_mime_type enum to strings
|
||||
extern const char *http_mime_type_names[][2];
|
||||
|
||||
typedef enum http_mime_type {
|
||||
http_mime_aac = 0,
|
||||
http_mime_bz,
|
||||
http_mime_bz2,
|
||||
http_mime_css,
|
||||
http_mime_csv,
|
||||
http_mime_gz,
|
||||
http_mime_gif,
|
||||
http_mime_htm,
|
||||
http_mime_html,
|
||||
http_mime_jar,
|
||||
http_mime_jpeg,
|
||||
http_mime_jpg,
|
||||
http_mime_js,
|
||||
http_mime_json,
|
||||
http_mime_mp3,
|
||||
http_mime_mp4,
|
||||
http_mime_png,
|
||||
http_mime_pdf,
|
||||
http_mime_rar,
|
||||
http_mime_sh,
|
||||
http_mime_svg,
|
||||
http_mime_tar,
|
||||
http_mime_txt,
|
||||
http_mime_wav,
|
||||
http_mime_7z
|
||||
} http_mime_type;
|
||||
|
||||
// Array mapping the http_header enum to strings
|
||||
extern const char *http_header_names[];
|
||||
|
||||
typedef enum http_header {
|
||||
http_header_connection = 0,
|
||||
http_header_location,
|
||||
http_header_content_type,
|
||||
http_header_content_disposition
|
||||
} http_header;
|
||||
|
||||
typedef enum http_body_type {
|
||||
http_body_buf = 0,
|
||||
http_body_file = 1
|
||||
} http_body_type;
|
||||
|
||||
typedef struct http_body {
|
||||
http_body_type type;
|
||||
char *buf;
|
||||
bool buf_owned;
|
||||
FILE *file;
|
||||
char *fname;
|
||||
bool fname_owned;
|
||||
// In the context of a request, expected_len is the content of the request's
|
||||
// Content-Length header, and len is how many bytes have already been
|
||||
// received.
|
||||
// In the context of a response, expected_len is the actual length of the
|
||||
// body, and len is how many have been written.
|
||||
size_t expected_len;
|
||||
size_t len;
|
||||
} http_body;
|
||||
|
||||
/**
|
||||
* Initialize a new body struct.
|
||||
*
|
||||
* @return pointer to the newly allocated object.
|
||||
*/
|
||||
http_body *http_body_init();
|
||||
|
||||
/**
|
||||
* Reset a body, allowing it to be reused as if newly allocated.
|
||||
*
|
||||
* @param body body to reset
|
||||
*/
|
||||
void http_body_reset(http_body *body);
|
||||
|
||||
/**
|
||||
* Free a body. Internally, this calls http_body_reset.
|
||||
*
|
||||
* @param body body to free
|
||||
*/
|
||||
void http_body_free(http_body *body);
|
||||
|
||||
#endif
|
|
@ -1,241 +0,0 @@
|
|||
#ifndef LANDER_HTTP_LOOP
|
||||
#define LANDER_HTTP_LOOP
|
||||
|
||||
#include <regex.h>
|
||||
|
||||
#include "event_loop.h"
|
||||
#include "http/req.h"
|
||||
#include "http/res.h"
|
||||
#include "http/types.h"
|
||||
|
||||
// Max amount of steps a route can use
|
||||
#define HTTP_LOOP_MAX_STEPS 17
|
||||
|
||||
#define MIN(x, y) (((x) < (y)) ? (x) : (y))
|
||||
#define MAX(x, y) (((x) > (y)) ? (x) : (y))
|
||||
|
||||
/**
|
||||
* Type of a route
|
||||
*/
|
||||
typedef enum http_route_type {
|
||||
http_route_literal = 0,
|
||||
http_route_regex = 1,
|
||||
} http_route_type;
|
||||
|
||||
/**
|
||||
* Function describing a step in a route's processing.
|
||||
*
|
||||
* @param conn connection to process
|
||||
* @return whether processing can proceed to the next step without performing
|
||||
* I/O first. For a request step, `false` means more data needs to be read
|
||||
* before the step can finish its processing. For response steps, `false` means
|
||||
* there's new data in the write buffer that needs to be written.
|
||||
*/
|
||||
typedef bool (*http_step)(event_loop_conn *conn);
|
||||
|
||||
extern const http_step http_default_res_steps[HTTP_LOOP_MAX_STEPS];
|
||||
|
||||
/**
|
||||
* Struct describing a route a request can take.
|
||||
*/
|
||||
typedef struct http_route {
|
||||
http_route_type type;
|
||||
http_method method;
|
||||
char *path;
|
||||
// Compiled regex for a regex route. This value gets set at runtime when
|
||||
// starting the http loop
|
||||
regex_t *regex;
|
||||
const http_step steps[HTTP_LOOP_MAX_STEPS];
|
||||
const http_step steps_res[HTTP_LOOP_MAX_STEPS];
|
||||
} http_route;
|
||||
|
||||
/**
|
||||
* Global context passed to every connection using the same pointer
|
||||
*/
|
||||
typedef struct http_loop_gctx {
|
||||
http_route *routes;
|
||||
size_t route_count;
|
||||
void *(*custom_ctx_init)();
|
||||
void (*custom_ctx_reset)(void *);
|
||||
void (*custom_ctx_free)(void *);
|
||||
const char *api_key;
|
||||
// Custom global context
|
||||
void *c;
|
||||
} http_loop_gctx;
|
||||
|
||||
/**
|
||||
* Initialize a new global context
|
||||
*
|
||||
* @return pointer to the newly allocated object.
|
||||
*/
|
||||
http_loop_gctx *http_loop_gctx_init();
|
||||
|
||||
/**
|
||||
* Invidivual context initialized for every connection
|
||||
*/
|
||||
typedef struct http_loop_ctx {
|
||||
http_request req;
|
||||
http_response res;
|
||||
http_route *route;
|
||||
size_t current_step;
|
||||
http_loop_gctx *g;
|
||||
void *c;
|
||||
} http_loop_ctx;
|
||||
|
||||
/**
|
||||
* Initialize a context struct
|
||||
*
|
||||
* @param g global context
|
||||
* @return pointer to the newly allocated context
|
||||
*/
|
||||
http_loop_ctx *http_loop_ctx_init(http_loop_gctx *g);
|
||||
|
||||
/**
|
||||
* Resets an already allocated context so that it can be reused for a new
|
||||
* request.
|
||||
*
|
||||
* @param ctx context to reset
|
||||
*/
|
||||
void http_loop_ctx_reset(http_loop_ctx *ctx);
|
||||
|
||||
/**
|
||||
* Free a context struct. Internally this first calls http_loop_ctx_reset.
|
||||
*
|
||||
* @param ctx context to free
|
||||
*/
|
||||
void http_loop_ctx_free(http_loop_ctx *ctx);
|
||||
|
||||
/**
|
||||
* Represents an HTTP loop
|
||||
*/
|
||||
typedef struct event_loop http_loop;
|
||||
|
||||
/**
|
||||
* Process incoming data as an HTTP request. This is the "handle_data" function
|
||||
* for the event loop.
|
||||
*
|
||||
* @param conn connection to process
|
||||
* @return whether another request can be processed immediately.
|
||||
*/
|
||||
bool http_loop_handle_request(event_loop_conn *conn);
|
||||
|
||||
/**
|
||||
* Try to parse the incoming data as an HTTP request.
|
||||
*
|
||||
* @param conn connection to process
|
||||
* @return result of the parse
|
||||
*/
|
||||
http_parse_error http_loop_parse_request(event_loop_conn *conn);
|
||||
|
||||
/**
|
||||
* Try to match the parsed request with one of the defined routes, aka route the
|
||||
* request.
|
||||
*
|
||||
* @param conn connection to process
|
||||
*/
|
||||
void http_loop_route_request(event_loop_conn *conn);
|
||||
|
||||
/**
|
||||
* Advance the processing of the routed request's processing by cycling through
|
||||
* the request's various steps.
|
||||
*
|
||||
* @param conn connection to process
|
||||
*/
|
||||
void http_loop_process_request(event_loop_conn *conn);
|
||||
|
||||
/**
|
||||
* Handles the response processing. This is the `write_data` function for the
|
||||
* event loop.
|
||||
*
|
||||
* @param conn connection to process
|
||||
*/
|
||||
void http_loop_handle_response(event_loop_conn *conn);
|
||||
|
||||
/**
|
||||
* Request step that consumes the request body and stores it in a buffer.
|
||||
*
|
||||
* @param conn connection to process
|
||||
* @return true if the body has been fully received, false otherwise
|
||||
*/
|
||||
bool http_loop_step_body_to_buf(event_loop_conn *conn);
|
||||
|
||||
/**
|
||||
* Request step that consumes the request body and stores it in a file.
|
||||
*
|
||||
* @param conn connection to process
|
||||
* @return true if the body has been fully received, false otherwise
|
||||
*/
|
||||
bool http_loop_step_body_to_file(event_loop_conn *conn);
|
||||
|
||||
/**
|
||||
* Try to parse the Content-Length header.
|
||||
*
|
||||
* @param conn connection to process
|
||||
*/
|
||||
bool http_loop_step_parse_content_length(event_loop_conn *conn);
|
||||
|
||||
/**
|
||||
* Authenticate the request using the X-Api-Key header.
|
||||
*
|
||||
* @param conn connection to check
|
||||
* @return always true
|
||||
*/
|
||||
bool http_loop_step_auth(event_loop_conn *conn);
|
||||
|
||||
/**
|
||||
* A step that simply sets the connection's state to res.
|
||||
*
|
||||
* @param conn connection to process
|
||||
* @return always true
|
||||
*/
|
||||
bool http_loop_step_switch_res(event_loop_conn *conn);
|
||||
|
||||
/**
|
||||
* Write the HTTP header back to the connection. If `res->head` is not set, a
|
||||
* header will be generated for you.
|
||||
*
|
||||
* @param conn connection to process
|
||||
*/
|
||||
bool http_loop_step_write_header(event_loop_conn *conn);
|
||||
|
||||
/**
|
||||
* Write the HTTP body back to the connection.
|
||||
*
|
||||
* @param conn connection to process
|
||||
*/
|
||||
bool http_loop_step_write_body(event_loop_conn *conn);
|
||||
|
||||
/**
|
||||
* Initialize a new http loop.
|
||||
*
|
||||
* @param routes array of routes that should be served
|
||||
* @param route_count how many elements are in `routes`
|
||||
* @param custom_gctx the application's custom global context; can be NULL
|
||||
* @param custom_ctx_init function to initialize a new custom context
|
||||
* @param custom_ctx_reset function to reset a custom context
|
||||
* @param custom_ctx_free function to free a custom context; will always be run
|
||||
* after a reset
|
||||
* @return pointer to the newly allocated object
|
||||
*/
|
||||
http_loop *http_loop_init(http_route *routes, size_t route_count,
|
||||
void *custom_gctx, void *(*custom_ctx_init)(),
|
||||
void(custom_ctx_reset)(void *),
|
||||
void(custom_ctx_free)(void *));
|
||||
|
||||
/**
|
||||
* Set the API key the authentication steps should use.
|
||||
*
|
||||
* @param hl HTTP loop to set key in
|
||||
* @param api_key API key to use
|
||||
*/
|
||||
void http_loop_set_api_key(http_loop *hl, const char *api_key);
|
||||
|
||||
/**
|
||||
* Run the HTTP loop. This function never returns.
|
||||
*
|
||||
* @param el the event loop
|
||||
* @param port on what port to listen
|
||||
*/
|
||||
void http_loop_run(http_loop *hl, int port);
|
||||
|
||||
#endif
|
|
@ -1,10 +1,10 @@
|
|||
#ifndef LANDER
|
||||
#define LANDER
|
||||
|
||||
#include "http_loop.h"
|
||||
#include "lnm/common.h"
|
||||
#include "lnm/http/loop.h"
|
||||
#include "lsm/store.h"
|
||||
|
||||
extern http_route lander_routes[6];
|
||||
extern const char lander_key_charset[];
|
||||
|
||||
typedef struct lander_gctx {
|
||||
|
@ -31,44 +31,44 @@ typedef enum lander_entry_type : uint8_t {
|
|||
|
||||
void *lander_gctx_init();
|
||||
|
||||
void *lander_ctx_init();
|
||||
lnm_err lander_ctx_init(void **c_ctx, void *gctx);
|
||||
|
||||
void lander_ctx_reset(lander_ctx *ctx);
|
||||
|
||||
void lander_ctx_free(lander_ctx *ctx);
|
||||
|
||||
bool lander_get_index(event_loop_conn *conn);
|
||||
lnm_http_step_err lander_get_index(lnm_http_conn *conn);
|
||||
|
||||
bool lander_get_entry(event_loop_conn *conn);
|
||||
lnm_http_step_err lander_get_entry(lnm_http_conn *conn);
|
||||
|
||||
bool lander_post_redirect(event_loop_conn *conn);
|
||||
lnm_http_step_err lander_post_redirect(lnm_http_conn *conn);
|
||||
|
||||
bool lander_post_paste(event_loop_conn *conn);
|
||||
lnm_http_step_err lander_post_redirect_secure(lnm_http_conn *conn);
|
||||
|
||||
bool lander_post_paste(event_loop_conn *conn);
|
||||
lnm_http_step_err lander_post_paste(lnm_http_conn *conn);
|
||||
|
||||
bool lander_post_redirect(event_loop_conn *conn);
|
||||
lnm_http_step_err lander_post_paste_secure(lnm_http_conn *conn);
|
||||
|
||||
bool lander_stream_body_to_entry(event_loop_conn *conn);
|
||||
lnm_http_step_err lander_stream_body_to_entry(lnm_http_conn *conn);
|
||||
|
||||
bool lander_stream_body_to_client(event_loop_conn *conn);
|
||||
lnm_http_step_err lander_post_redirect_body_to_attr(lnm_http_conn *conn);
|
||||
|
||||
bool lander_post_redirect_body_to_attr(event_loop_conn *conn);
|
||||
lnm_http_step_err lander_remove_entry(lnm_http_conn *conn);
|
||||
|
||||
bool lander_remove_entry(event_loop_conn *conn);
|
||||
lnm_http_step_err lander_post_file(lnm_http_conn *conn);
|
||||
|
||||
bool lander_post_file(event_loop_conn *conn);
|
||||
lnm_http_step_err lander_post_file_secure(lnm_http_conn *conn);
|
||||
|
||||
/**
|
||||
* Store the requested header as an attribute, if it's present.
|
||||
*/
|
||||
void lander_header_to_attr(http_loop_ctx *ctx, const char *header,
|
||||
void lander_header_to_attr(lnm_http_loop_ctx *ctx, const char *header,
|
||||
lander_attr_type attr_type);
|
||||
|
||||
/**
|
||||
* Store the attribute's value as the provided header, if present.
|
||||
*/
|
||||
void lander_attr_to_header(http_loop_ctx *ctx, lander_attr_type attr_type,
|
||||
http_header header_type);
|
||||
void lander_attr_to_header(lnm_http_loop_ctx *ctx, lander_attr_type attr_type,
|
||||
lnm_http_header header_type);
|
||||
|
||||
#endif
|
||||
|
|
|
@ -0,0 +1,3 @@
|
|||
api_key = test
|
||||
server_url = http://localhost:18080
|
||||
ca_certs_bundle = /etc/ssl/certs/ca-certificates.crt
|
|
@ -10,25 +10,56 @@
|
|||
#include "landerctl.h"
|
||||
|
||||
const char *cfg_file_name = ".landerrc";
|
||||
const char *usage = "%s [-SPFsv] arg [key]\n";
|
||||
const char *usage = "%s [-SPFsv] [-c CONFIG_FILE] arg [key]\n";
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
landerctl_ctx ctx = {0};
|
||||
char *err_msg = NULL;
|
||||
|
||||
landerctl_cfg_err parse_res;
|
||||
|
||||
const char *home_dir = getenv("HOME");
|
||||
const char *cfg_path;
|
||||
|
||||
if (home_dir == NULL) {
|
||||
parse_res = landerctl_cfg_parse(&ctx.cfg, cfg_file_name);
|
||||
cfg_path = cfg_file_name;
|
||||
} else {
|
||||
char cfg_path[strlen(home_dir) + strlen(cfg_file_name) + 2];
|
||||
sprintf(cfg_path, "%s/%s", home_dir, cfg_file_name);
|
||||
|
||||
parse_res = landerctl_cfg_parse(&ctx.cfg, cfg_path);
|
||||
// This is a blatant memleak if a custom config file is set, but it really
|
||||
// doesn't matter for a short-lived CLI tool
|
||||
char *buf = malloc(strlen(home_dir) + strlen(cfg_file_name) + 2);
|
||||
sprintf(buf, "%s/%s", home_dir, cfg_file_name);
|
||||
cfg_path = buf;
|
||||
}
|
||||
|
||||
opterr = 0;
|
||||
int c;
|
||||
|
||||
while ((c = getopt(argc, argv, "SPFsvc:")) != -1) {
|
||||
switch (c) {
|
||||
case 'S':
|
||||
ctx.mode = landerctl_mode_short;
|
||||
break;
|
||||
case 'P':
|
||||
ctx.mode = landerctl_mode_paste;
|
||||
break;
|
||||
case 'F':
|
||||
ctx.mode = landerctl_mode_file;
|
||||
break;
|
||||
case 's':
|
||||
ctx.secure = true;
|
||||
break;
|
||||
case 'v':
|
||||
ctx.verbose = true;
|
||||
break;
|
||||
case 'c':
|
||||
cfg_path = optarg;
|
||||
break;
|
||||
case '?':
|
||||
printf(usage, argv[0]);
|
||||
exit(2);
|
||||
}
|
||||
}
|
||||
|
||||
char *err_msg = NULL;
|
||||
landerctl_cfg_err parse_res = landerctl_cfg_parse(&ctx.cfg, cfg_path);
|
||||
|
||||
switch (parse_res) {
|
||||
case landerctl_cfg_err_ok:
|
||||
break;
|
||||
|
@ -48,33 +79,6 @@ int main(int argc, char **argv) {
|
|||
exit(1);
|
||||
}
|
||||
|
||||
opterr = 0;
|
||||
|
||||
int c;
|
||||
|
||||
while ((c = getopt(argc, argv, "SPFsv")) != -1) {
|
||||
switch (c) {
|
||||
case 'S':
|
||||
ctx.mode = landerctl_mode_short;
|
||||
break;
|
||||
case 'P':
|
||||
ctx.mode = landerctl_mode_paste;
|
||||
break;
|
||||
case 'F':
|
||||
ctx.mode = landerctl_mode_file;
|
||||
break;
|
||||
case 's':
|
||||
ctx.secure = true;
|
||||
break;
|
||||
case 'v':
|
||||
ctx.verbose = true;
|
||||
break;
|
||||
case '?':
|
||||
printf(usage, argv[0]);
|
||||
exit(2);
|
||||
}
|
||||
}
|
||||
|
||||
if (ctx.mode == landerctl_mode_none) {
|
||||
printf("No mode specified.\n\n");
|
||||
printf(usage, argv[0]);
|
||||
|
|
|
@ -0,0 +1 @@
|
|||
Subproject commit 195eb9eb4832f80ee8ab2372192196018362b252
|
|
@ -1,192 +0,0 @@
|
|||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <netinet/in.h>
|
||||
#include <poll.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <sys/socket.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "event_loop.h"
|
||||
#include "log.h"
|
||||
|
||||
static void event_loop_fd_set_nb(int fd) {
|
||||
int flags = fcntl(fd, F_GETFL);
|
||||
|
||||
flags |= O_NONBLOCK;
|
||||
|
||||
fcntl(fd, F_SETFL, flags);
|
||||
}
|
||||
|
||||
event_loop *event_loop_init() {
|
||||
event_loop *el = calloc(sizeof(event_loop), 1);
|
||||
|
||||
// No idea if this is a good starter value
|
||||
el->connections = calloc(sizeof(event_loop_conn *), 16);
|
||||
el->connection_count = 16;
|
||||
|
||||
return el;
|
||||
}
|
||||
|
||||
int event_loop_put(event_loop *el, event_loop_conn *conn) {
|
||||
if ((size_t)conn->fd >= el->connection_count) {
|
||||
event_loop_conn **resized =
|
||||
realloc(el->connections, sizeof(event_loop_conn *) * (conn->fd + 1));
|
||||
|
||||
if (resized == NULL) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
el->connections = resized;
|
||||
el->connection_count = conn->fd + 1;
|
||||
}
|
||||
|
||||
el->connections[conn->fd] = conn;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int event_loop_accept(event_loop *el, int fd) {
|
||||
struct sockaddr_in client_addr;
|
||||
socklen_t socklen = sizeof(client_addr);
|
||||
int connfd = accept(fd, (struct sockaddr *)&client_addr, &socklen);
|
||||
|
||||
if (connfd < 0) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
// set the new connection fd to nonblocking mode
|
||||
event_loop_fd_set_nb(connfd);
|
||||
|
||||
// creating the struct Conn
|
||||
event_loop_conn *conn = event_loop_conn_init(el);
|
||||
|
||||
// Close the connectoin if we fail to allocate a connection struct
|
||||
if (conn == NULL) {
|
||||
close(connfd);
|
||||
|
||||
return -3;
|
||||
}
|
||||
|
||||
conn->fd = connfd;
|
||||
conn->state = event_loop_conn_state_req;
|
||||
|
||||
int res = event_loop_put(el, conn);
|
||||
|
||||
if (res != 0) {
|
||||
close(connfd);
|
||||
|
||||
return -4;
|
||||
}
|
||||
|
||||
debug("Connection established on fd %i", connfd);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void event_loop_run(event_loop *el, int port) {
|
||||
int fd = socket(AF_INET, SOCK_STREAM, 0);
|
||||
|
||||
if (fd < 0) {
|
||||
critical(1, "Failed to open listening socket, errno: %i", errno);
|
||||
}
|
||||
|
||||
int val = 1;
|
||||
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
|
||||
|
||||
// bind
|
||||
struct sockaddr_in addr = {.sin_family = AF_INET,
|
||||
.sin_port = ntohs(port),
|
||||
.sin_addr.s_addr = ntohl(0)};
|
||||
|
||||
int res = bind(fd, (const struct sockaddr *)&addr, sizeof(addr));
|
||||
|
||||
if (res) {
|
||||
critical(1, "Failed to bind listening socket, errno: %i", errno);
|
||||
}
|
||||
|
||||
debug("Listening socket bound to fd %i", fd);
|
||||
|
||||
res = listen(fd, SOMAXCONN);
|
||||
|
||||
if (res) {
|
||||
critical(1, "Failed to start listening on listening socket, errno: %i",
|
||||
errno);
|
||||
}
|
||||
|
||||
// The listening socket is always poll'ed in non-blocking mode as well
|
||||
event_loop_fd_set_nb(fd);
|
||||
|
||||
// TODO don't hardcode the number 32
|
||||
struct pollfd *poll_args = calloc(sizeof(struct pollfd), 32);
|
||||
|
||||
// for convenience, the listening fd is put in the first position
|
||||
struct pollfd pfd = {fd, POLLIN, 0};
|
||||
poll_args[0] = pfd;
|
||||
|
||||
event_loop_conn *conn;
|
||||
int events;
|
||||
|
||||
info("Starting event loop on port %i", port);
|
||||
|
||||
while (1) {
|
||||
size_t poll_args_count = 1;
|
||||
|
||||
// connection fds
|
||||
for (size_t i = 0; i < el->connection_count; i++) {
|
||||
conn = el->connections[i];
|
||||
|
||||
if (conn == NULL) {
|
||||
continue;
|
||||
}
|
||||
|
||||
events = (conn->state == event_loop_conn_state_req) ? POLLIN : POLLOUT;
|
||||
events |= POLLERR;
|
||||
|
||||
pfd.fd = conn->fd;
|
||||
pfd.events = events;
|
||||
|
||||
poll_args[poll_args_count] = pfd;
|
||||
poll_args_count++;
|
||||
|
||||
// We do at most 32 connections at a time for now
|
||||
if (poll_args_count == 32)
|
||||
break;
|
||||
}
|
||||
|
||||
// poll for active fds
|
||||
// the timeout argument doesn't matter here
|
||||
int rv = poll(poll_args, (nfds_t)poll_args_count, -1);
|
||||
|
||||
if (rv < 0) {
|
||||
critical(1, "Poll failed, errno: %i", errno);
|
||||
}
|
||||
|
||||
// process active connections
|
||||
for (size_t i = 1; i < poll_args_count; i++) {
|
||||
if (poll_args[i].revents) {
|
||||
conn = el->connections[poll_args[i].fd];
|
||||
|
||||
event_loop_conn_io(el, conn);
|
||||
|
||||
if (conn->state == event_loop_conn_state_end) {
|
||||
// client closed normally, or something bad happened.
|
||||
// destroy this connection
|
||||
el->connections[conn->fd] = NULL;
|
||||
|
||||
close(conn->fd);
|
||||
debug("Connection closed on fd %i", conn->fd);
|
||||
event_loop_conn_free(el, conn);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// try to accept a new connection if the listening fd is active
|
||||
if (poll_args[0].revents) {
|
||||
event_loop_accept(el, fd);
|
||||
}
|
||||
}
|
||||
}
|
|
@ -1,13 +0,0 @@
|
|||
#include "event_loop.h"
|
||||
|
||||
event_loop_conn *event_loop_conn_init(event_loop *el) {
|
||||
event_loop_conn *conn = calloc(sizeof(event_loop_conn), 1);
|
||||
conn->ctx = el->ctx_init(el->gctx);
|
||||
|
||||
return conn;
|
||||
}
|
||||
|
||||
void event_loop_conn_free(event_loop *el, event_loop_conn *conn) {
|
||||
el->ctx_free(conn->ctx);
|
||||
free(conn);
|
||||
}
|
|
@ -1,98 +0,0 @@
|
|||
#include <errno.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "event_loop.h"
|
||||
|
||||
void event_loop_conn_io_res(event_loop *el, event_loop_conn *conn) {
|
||||
do {
|
||||
ssize_t res = 0;
|
||||
size_t remain = conn->wbuf_size - conn->wbuf_sent;
|
||||
|
||||
do {
|
||||
res = write(conn->fd, &conn->wbuf[conn->wbuf_sent], remain);
|
||||
} while (res < 0 && errno == EINTR);
|
||||
|
||||
// EAGAIN doesn't mean there was an error, but rather that there's no more
|
||||
// data right now, but there might be more later, aka "try again later"
|
||||
if (res < 0 && errno == EAGAIN) {
|
||||
return;
|
||||
}
|
||||
|
||||
// If it's not EGAIN, there was an error writing so we simply end the
|
||||
// request
|
||||
if (res < 0) {
|
||||
conn->state = event_loop_conn_state_end;
|
||||
return;
|
||||
}
|
||||
|
||||
conn->wbuf_sent += (size_t)res;
|
||||
|
||||
// After writing the entire buffer, we run the write_data command to receive
|
||||
// new data, or exit the loop
|
||||
if (conn->wbuf_sent == conn->wbuf_size) {
|
||||
conn->wbuf_sent = 0;
|
||||
conn->wbuf_size = 0;
|
||||
|
||||
el->write_data(conn);
|
||||
}
|
||||
} while (conn->state == event_loop_conn_state_res);
|
||||
}
|
||||
|
||||
/**
|
||||
* Read new data into the read buffer. This command performs at most one
|
||||
* successful read syscall.
|
||||
*
|
||||
* Returns whether the function should be retried immediately or not.
|
||||
*/
|
||||
void event_loop_conn_io_req(event_loop *el, event_loop_conn *conn) {
|
||||
do {
|
||||
// Move remaining data to start of buffer
|
||||
memmove(conn->rbuf, &conn->rbuf[conn->rbuf_read],
|
||||
conn->rbuf_size - conn->rbuf_read);
|
||||
conn->rbuf_size -= conn->rbuf_read;
|
||||
conn->rbuf_read = 0;
|
||||
|
||||
ssize_t res;
|
||||
size_t cap = EVENT_LOOP_BUFFER_SIZE - conn->rbuf_size;
|
||||
|
||||
// Try to read at most cap bytes from the file descriptor
|
||||
do {
|
||||
res = read(conn->fd, &conn->rbuf[conn->rbuf_size], cap);
|
||||
} while (res < 0 && errno == EINTR);
|
||||
|
||||
// EGAIN means we try again later
|
||||
if (res < 0 && errno == EAGAIN) {
|
||||
return;
|
||||
}
|
||||
|
||||
// Any other negative error message means the read errored out. If res is 0,
|
||||
// we've reached the end of the input which (usually) means the remote peer
|
||||
// has closed the connection. Either way, we close the connection.
|
||||
if (res <= 0) {
|
||||
conn->state = event_loop_conn_state_end;
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
conn->rbuf_size += (size_t)res;
|
||||
|
||||
// This loop allows processing multiple requests from a single read buffer
|
||||
while (el->handle_data(conn))
|
||||
;
|
||||
}
|
||||
// We can keep reading as long as we're in request mode
|
||||
while (conn->state == event_loop_conn_state_req);
|
||||
}
|
||||
|
||||
void event_loop_conn_io(event_loop *el, event_loop_conn *conn) {
|
||||
switch (conn->state) {
|
||||
case event_loop_conn_state_req:
|
||||
event_loop_conn_io_req(el, conn);
|
||||
break;
|
||||
case event_loop_conn_state_res:
|
||||
event_loop_conn_io_res(el, conn);
|
||||
break;
|
||||
case event_loop_conn_state_end:;
|
||||
}
|
||||
}
|
|
@ -1,131 +0,0 @@
|
|||
#include <stdlib.h>
|
||||
|
||||
#include "http/types.h"
|
||||
|
||||
// Very important that this is in the same order as http_request_method
|
||||
const char *http_method_names[] = {"GET", "POST", "PUT", "PATCH", "DELETE"};
|
||||
const size_t http_method_names_len =
|
||||
sizeof(http_method_names) / sizeof(http_method_names[0]);
|
||||
|
||||
// clang-format off
|
||||
|
||||
const char *http_status_names[][32] = {
|
||||
// 1xx
|
||||
{
|
||||
"Continue", // 100
|
||||
"Switching Protocols", // 101,
|
||||
"Processing", // 102
|
||||
"Early Hints", // 103
|
||||
},
|
||||
// 2xx
|
||||
{
|
||||
"OK", // 200
|
||||
"Created", // 201
|
||||
"Accepted", // 202
|
||||
"Non-Authoritative Information", // 203
|
||||
"No Content", // 204
|
||||
"Reset Content", // 205
|
||||
"Partial Content", // 206
|
||||
"Multi-Status", // 207
|
||||
"Already Reported", // 208
|
||||
},
|
||||
// 3xx
|
||||
{
|
||||
"Multiple Choices", // 300
|
||||
"Moved Permanently", // 301
|
||||
"Found", // 302
|
||||
"See Other", // 303
|
||||
"Not Modified", // 304
|
||||
NULL, // 305
|
||||
NULL, // 306
|
||||
"Temporary Redirect", // 307
|
||||
"Permanent Redirect", // 308
|
||||
},
|
||||
// 4xx
|
||||
{
|
||||
"Bad Request", // 400
|
||||
"Unauthorized", // 401
|
||||
"Payment Required", // 402
|
||||
"Forbidden", // 403
|
||||
"Not Found", // 404
|
||||
"Method Not Allowed", // 405
|
||||
"Not Acceptable", // 406
|
||||
"Proxy Authentication Required", // 407
|
||||
"Request Timeout", // 408
|
||||
"Conflict", // 409
|
||||
"Gone", // 410
|
||||
"Length Required", // 411
|
||||
"Precondition Failed", // 412
|
||||
"Content Too Large", // 413
|
||||
"URI Too Long", // 414
|
||||
"Unsupported Media Type", // 415
|
||||
"Range Not Satisfiable", // 416
|
||||
"Expectation Failed", // 417
|
||||
"I'm a teapot", // 418
|
||||
NULL, // 419
|
||||
NULL, // 420
|
||||
"Misdirected Request", // 421
|
||||
"Unprocessable Content", // 422
|
||||
"Locked", // 423
|
||||
"Failed Dependency", // 424
|
||||
"Too Early", // 425
|
||||
"Upgrade Required", // 426
|
||||
NULL, // 427
|
||||
"Precondition Required", // 428
|
||||
"Too Many Requests", // 429
|
||||
NULL, // 430
|
||||
"Request Header Fields Too Large", // 431
|
||||
},
|
||||
// 5xx
|
||||
{
|
||||
"Internal Server Error", // 500
|
||||
"Not Implemented", // 501
|
||||
"Bad Gateway", // 502
|
||||
"Service Unavailable", // 503
|
||||
"Gateway Timeout", // 504
|
||||
"HTTP Version Not Supported", // 505
|
||||
"Variant Also Negotiates", // 506
|
||||
"Insufficient Storage", // 507
|
||||
"Loop Detected", // 508
|
||||
NULL, // 509
|
||||
"Not Extended", // 510
|
||||
"Network Authentication Required" // 511
|
||||
},
|
||||
};
|
||||
|
||||
const char *http_header_names[] = {
|
||||
"Connection",
|
||||
"Location",
|
||||
"Content-Type",
|
||||
"Content-Disposition"
|
||||
};
|
||||
|
||||
const char *http_mime_type_names[][2] = {
|
||||
{ "aac", "audio/aac" },
|
||||
{ "bz", "application/x-bzip" },
|
||||
{ "bz2", "application/x-bzip2" },
|
||||
{ "css", "text/css" },
|
||||
{ "csv", "text/csv" },
|
||||
{ "gz", "application/gzip" },
|
||||
{ "gif", "image/gif" },
|
||||
{ "htm", "text/html" },
|
||||
{ "html", "text/html" },
|
||||
{ "jar", "application/java-archive" },
|
||||
{ "jpeg", "image/jpeg" },
|
||||
{ "jpg", "image/jpeg" },
|
||||
{ "js", "text/javascript" },
|
||||
{ "json", "application/json" },
|
||||
{ "mp3", "audio/mpeg" },
|
||||
{ "mp4", "video/mp4" },
|
||||
{ "png", "image/png" },
|
||||
{ "pdf", "application/pdf" },
|
||||
{ "rar", "application/vnd.rar" },
|
||||
{ "sh", "application/x-sh" },
|
||||
{ "svg", "image/svg+xml" },
|
||||
{ "tar", "application/x-tar" },
|
||||
{ "txt", "text/plain" },
|
||||
{ "wav", "audio/wav" },
|
||||
{ "7z", "application/x-7z-compressed" },
|
||||
};
|
||||
|
||||
// clang-format on
|
|
@ -1,37 +0,0 @@
|
|||
#include <sys/stat.h>
|
||||
|
||||
#include "http/res.h"
|
||||
|
||||
void http_res_set_body_buf(http_response *res, const char *body,
|
||||
size_t body_len, bool owned) {
|
||||
res->body.type = http_body_buf;
|
||||
res->body.buf = (char *)body;
|
||||
res->body.expected_len = body_len;
|
||||
res->body.buf_owned = owned;
|
||||
}
|
||||
|
||||
void http_res_set_body_file(http_response *res, const char *filename) {
|
||||
struct stat st;
|
||||
stat(filename, &st);
|
||||
|
||||
// TODO error handling
|
||||
FILE *f = fopen(filename, "r");
|
||||
|
||||
res->body.type = http_body_file;
|
||||
res->body.file = f;
|
||||
res->body.expected_len = st.st_size;
|
||||
}
|
||||
|
||||
void http_res_add_header(http_response *res, http_header type,
|
||||
const char *value, bool owned) {
|
||||
res->headers[res->header_count].type = type;
|
||||
res->headers[res->header_count].value = value;
|
||||
res->headers[res->header_count].owned = owned;
|
||||
|
||||
res->header_count++;
|
||||
}
|
||||
|
||||
void http_res_set_mime_type(http_response *res, http_mime_type mime_type) {
|
||||
http_res_add_header(res, http_header_content_type,
|
||||
http_mime_type_names[mime_type][1], false);
|
||||
}
|
|
@ -1,33 +0,0 @@
|
|||
#include <stdlib.h>
|
||||
|
||||
#include "http/types.h"
|
||||
|
||||
http_body *http_body_init() { return calloc(sizeof(http_body), 1); }
|
||||
|
||||
void http_body_reset(http_body *body) {
|
||||
if (body->type == http_body_file) {
|
||||
fclose(body->file);
|
||||
}
|
||||
|
||||
if (body->buf_owned) {
|
||||
free(body->buf);
|
||||
}
|
||||
|
||||
if (body->fname_owned) {
|
||||
free(body->fname);
|
||||
}
|
||||
|
||||
body->type = 0;
|
||||
body->buf = NULL;
|
||||
body->buf_owned = false;
|
||||
body->file = NULL;
|
||||
body->fname = NULL;
|
||||
body->fname_owned = false;
|
||||
body->expected_len = 0;
|
||||
body->len = 0;
|
||||
}
|
||||
|
||||
void http_body_free(http_body *body) {
|
||||
http_body_reset(body);
|
||||
free(body);
|
||||
}
|
|
@ -1,101 +0,0 @@
|
|||
#include <regex.h>
|
||||
|
||||
#include "http/types.h"
|
||||
#include "http_loop.h"
|
||||
#include "log.h"
|
||||
|
||||
const http_step http_default_res_steps[HTTP_LOOP_MAX_STEPS] = {
|
||||
http_loop_step_write_header, http_loop_step_write_body, NULL};
|
||||
|
||||
bool http_loop_handle_request(event_loop_conn *conn) {
|
||||
// Prevents the request handler function from looping indefinitely without
|
||||
// ever consuming new data
|
||||
if (conn->rbuf_size - conn->rbuf_read == 0) {
|
||||
return false;
|
||||
}
|
||||
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
|
||||
// If route is defined, we're currently processing a request
|
||||
if (ctx->route == NULL) {
|
||||
http_parse_error res = http_loop_parse_request(conn);
|
||||
|
||||
if (res == http_parse_error_invalid ||
|
||||
(res == http_parse_error_incomplete &&
|
||||
conn->rbuf_size == EVENT_LOOP_BUFFER_SIZE)) {
|
||||
conn->state = event_loop_conn_state_end;
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
conn->rbuf_read += ctx->req.len;
|
||||
|
||||
// It's fun to respond with extremely specific error messages
|
||||
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/501
|
||||
if (res == http_parse_error_unknown_method) {
|
||||
ctx->res.status = http_method_not_implemented;
|
||||
conn->state = event_loop_conn_state_res;
|
||||
} else {
|
||||
http_loop_route_request(conn);
|
||||
}
|
||||
}
|
||||
|
||||
if (conn->state == event_loop_conn_state_req) {
|
||||
http_loop_process_request(conn);
|
||||
}
|
||||
|
||||
// TODO in highly concurrent situations, it might actually be better to always
|
||||
// return false here, as this allows cycling better through all connections
|
||||
return conn->state == event_loop_conn_state_req;
|
||||
}
|
||||
|
||||
event_loop *http_loop_init(http_route *routes, size_t route_count,
|
||||
void *custom_gctx, void *(*custom_ctx_init)(),
|
||||
void(custom_ctx_reset)(), void(custom_ctx_free)()) {
|
||||
event_loop *el = event_loop_init();
|
||||
|
||||
el->ctx_init = (void *(*)(void *))http_loop_ctx_init;
|
||||
el->ctx_free = (void (*)(void *))http_loop_ctx_free;
|
||||
el->handle_data = http_loop_handle_request;
|
||||
el->write_data = http_loop_handle_response;
|
||||
|
||||
http_loop_gctx *gctx = http_loop_gctx_init();
|
||||
gctx->c = custom_gctx;
|
||||
gctx->routes = routes;
|
||||
gctx->route_count = route_count;
|
||||
gctx->custom_ctx_init = custom_ctx_init;
|
||||
gctx->custom_ctx_reset = custom_ctx_reset;
|
||||
gctx->custom_ctx_free = custom_ctx_free;
|
||||
el->gctx = gctx;
|
||||
|
||||
return el;
|
||||
}
|
||||
|
||||
void http_loop_set_api_key(http_loop *hl, const char *api_key) {
|
||||
http_loop_gctx *gctx = hl->gctx;
|
||||
gctx->api_key = api_key;
|
||||
}
|
||||
|
||||
void http_loop_run(event_loop *el, int port) {
|
||||
debug("Compiling RegEx routes");
|
||||
|
||||
http_loop_gctx *gctx = el->gctx;
|
||||
|
||||
for (size_t i = 0; i < gctx->route_count; i++) {
|
||||
http_route *route = &gctx->routes[i];
|
||||
|
||||
if (route->type == http_route_regex) {
|
||||
regex_t *r = calloc(sizeof(regex_t), 1);
|
||||
|
||||
if (regcomp(r, route->path, REG_EXTENDED) != 0) {
|
||||
critical(1, "RegEx expression '%s' failed to compile", route->path);
|
||||
}
|
||||
|
||||
route->regex = r;
|
||||
}
|
||||
}
|
||||
|
||||
debug("RegEx routes compiled successfully");
|
||||
|
||||
event_loop_run(el, port);
|
||||
}
|
|
@ -1,52 +0,0 @@
|
|||
#include <stdio.h>
|
||||
|
||||
#include "http/types.h"
|
||||
#include "http_loop.h"
|
||||
|
||||
http_loop_gctx *http_loop_gctx_init() {
|
||||
http_loop_gctx *gctx = calloc(sizeof(http_loop_gctx), 1);
|
||||
|
||||
return gctx;
|
||||
}
|
||||
|
||||
http_loop_ctx *http_loop_ctx_init(http_loop_gctx *g) {
|
||||
http_loop_ctx *ctx = calloc(sizeof(http_loop_ctx), 1);
|
||||
ctx->g = g;
|
||||
ctx->c = g->custom_ctx_init();
|
||||
|
||||
return ctx;
|
||||
}
|
||||
|
||||
void http_loop_ctx_free(http_loop_ctx *ctx) {
|
||||
http_loop_ctx_reset(ctx);
|
||||
ctx->g->custom_ctx_free(ctx->c);
|
||||
|
||||
free(ctx);
|
||||
}
|
||||
|
||||
void http_loop_ctx_reset(http_loop_ctx *ctx) {
|
||||
ctx->route = NULL;
|
||||
ctx->current_step = 0;
|
||||
|
||||
if (ctx->res.head != NULL) {
|
||||
free((void *)ctx->res.head);
|
||||
ctx->res.head = NULL;
|
||||
}
|
||||
|
||||
http_body_reset(&ctx->req.body);
|
||||
http_body_reset(&ctx->res.body);
|
||||
|
||||
for (size_t i = 0; i < ctx->res.header_count; i++) {
|
||||
if (ctx->res.headers[i].owned) {
|
||||
free((void *)ctx->res.headers[i].value);
|
||||
}
|
||||
}
|
||||
|
||||
ctx->res.header_count = 0;
|
||||
|
||||
ctx->res.status = 0;
|
||||
ctx->res.head_len = 0;
|
||||
ctx->res.head_written = 0;
|
||||
|
||||
ctx->g->custom_ctx_reset(ctx->c);
|
||||
}
|
|
@ -1,149 +0,0 @@
|
|||
#include <string.h>
|
||||
|
||||
#include "http_loop.h"
|
||||
#include "log.h"
|
||||
|
||||
http_parse_error http_loop_parse_request(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
|
||||
// First we try to parse the incoming HTTP request
|
||||
size_t num_headers = HTTP_MAX_ALLOWED_HEADERS;
|
||||
http_request *req = &ctx->req;
|
||||
|
||||
const char *method;
|
||||
size_t method_len;
|
||||
char *path;
|
||||
size_t path_len;
|
||||
|
||||
int res =
|
||||
phr_parse_request((const char *)&conn->rbuf[conn->rbuf_read],
|
||||
conn->rbuf_size - conn->rbuf_read, &method, &method_len,
|
||||
(const char **)&path, &path_len, &req->minor_version,
|
||||
req->headers, &num_headers, 0);
|
||||
|
||||
if (res == -1) {
|
||||
return http_parse_error_invalid;
|
||||
} else if (res == -2) {
|
||||
return http_parse_error_incomplete;
|
||||
}
|
||||
|
||||
req->num_headers = num_headers;
|
||||
req->len = res;
|
||||
|
||||
// Try to parse the method type
|
||||
bool match = false;
|
||||
size_t i = 0;
|
||||
|
||||
for (i = 0; i < http_method_names_len; i++) {
|
||||
if (strncmp(method, http_method_names[i], method_len) == 0) {
|
||||
req->method = i;
|
||||
match = true;
|
||||
}
|
||||
}
|
||||
|
||||
if (!match) {
|
||||
return http_parse_error_unknown_method;
|
||||
}
|
||||
|
||||
// Split path into path & query
|
||||
i = 0;
|
||||
bool no_query = true;
|
||||
|
||||
while (no_query && i < path_len) {
|
||||
if (path[i] == '?') {
|
||||
// Ensure we don't store an invalid pointer if the request simply ends
|
||||
// with '?'
|
||||
if (i + 1 < req->path_len) {
|
||||
req->query = &path[i + 1];
|
||||
req->query_len = path_len - (i + 1);
|
||||
}
|
||||
|
||||
path_len = i;
|
||||
|
||||
no_query = false;
|
||||
}
|
||||
|
||||
i++;
|
||||
}
|
||||
|
||||
// The path needs to be NULL-terminated in order for regex routes to be
|
||||
// matched properly. We know we can overwrite this char because it's either
|
||||
// '?' if there's a query, or '\n' because we know the buf contains a valid
|
||||
// HTTP rqeuest
|
||||
path[path_len] = '\0';
|
||||
|
||||
req->path = path;
|
||||
req->path_len = path_len;
|
||||
|
||||
// Ensure we clear the old request's query
|
||||
if (no_query) {
|
||||
req->query = NULL;
|
||||
req->query_len = 0;
|
||||
}
|
||||
|
||||
return http_parse_error_ok;
|
||||
}
|
||||
|
||||
void http_loop_route_request(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
http_loop_gctx *gctx = ctx->g;
|
||||
|
||||
info("%s %.*s", http_method_names[ctx->req.method], ctx->req.path_len,
|
||||
ctx->req.path);
|
||||
|
||||
http_route *route;
|
||||
bool path_matched = false;
|
||||
|
||||
for (size_t i = 0; i < gctx->route_count; i++) {
|
||||
route = &gctx->routes[i];
|
||||
|
||||
switch (route->type) {
|
||||
case http_route_literal:
|
||||
if (strncmp(route->path, ctx->req.path, ctx->req.path_len) == 0) {
|
||||
path_matched = true;
|
||||
|
||||
if (ctx->req.method == route->method) {
|
||||
ctx->route = route;
|
||||
return;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case http_route_regex:
|
||||
if (regexec(route->regex, ctx->req.path, HTTP_MAX_REGEX_GROUPS,
|
||||
ctx->req.regex_groups, 0) == 0) {
|
||||
path_matched = true;
|
||||
|
||||
if (ctx->req.method == route->method) {
|
||||
ctx->route = route;
|
||||
return;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// Fallthrough case
|
||||
ctx->res.status = path_matched ? http_method_not_allowed : http_not_found;
|
||||
conn->state = event_loop_conn_state_res;
|
||||
}
|
||||
|
||||
void http_loop_process_request(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
|
||||
// We keep processing step functions as long as they don't need to wait for
|
||||
// I/O
|
||||
while ((conn->state == event_loop_conn_state_req) &&
|
||||
(ctx->route->steps[ctx->current_step] != NULL) &&
|
||||
ctx->route->steps[ctx->current_step](conn)) {
|
||||
ctx->current_step++;
|
||||
}
|
||||
|
||||
// Request processing can stop early by switching the connection state
|
||||
// Either way, we reset the step counter as it will be used by the response
|
||||
// steps
|
||||
if ((conn->state != event_loop_conn_state_req) ||
|
||||
(ctx->route->steps[ctx->current_step] == NULL)) {
|
||||
ctx->current_step = 0;
|
||||
conn->state = event_loop_conn_state_res;
|
||||
}
|
||||
}
|
|
@ -1,127 +0,0 @@
|
|||
#include "http_loop.h"
|
||||
#include "log.h"
|
||||
|
||||
// cppcheck-suppress syntaxError
|
||||
static const char *http_response_format = "HTTP/1.1 %i %s\n"
|
||||
"Server: lander/" LANDER_VERSION "\n"
|
||||
"Content-Length: %lu\n";
|
||||
|
||||
/*
|
||||
* This function precalculates the size of the total buffer required using
|
||||
* snprintf. When this function is called with a buf size of 0, it never tries
|
||||
* to write any data, but it does return the amount of bytes that would be
|
||||
* written.
|
||||
*/
|
||||
void http_loop_init_header(http_response *res) {
|
||||
if (res->status == 0) {
|
||||
res->status = http_ok;
|
||||
}
|
||||
|
||||
const char *response_type_name =
|
||||
http_status_names[res->status / 100 - 1][res->status % 100];
|
||||
|
||||
// First we calculate the size of the start of the header
|
||||
int buf_size = snprintf(NULL, 0, http_response_format, res->status,
|
||||
response_type_name, res->body.expected_len);
|
||||
|
||||
// We add each header's required size
|
||||
for (size_t i = 0; i < res->header_count; i++) {
|
||||
buf_size +=
|
||||
snprintf(NULL, 0, "%s: %s\n", http_header_names[res->headers[i].type],
|
||||
res->headers[i].value);
|
||||
}
|
||||
|
||||
// The + 1 is required to store the final null byte, but we will replace it
|
||||
// with the required final newline
|
||||
char *buf = malloc(buf_size + 1);
|
||||
buf_size = sprintf(buf, http_response_format, res->status, response_type_name,
|
||||
res->body.expected_len);
|
||||
|
||||
for (size_t i = 0; i < res->header_count; i++) {
|
||||
buf_size +=
|
||||
sprintf(&buf[buf_size], "%s: %s\n",
|
||||
http_header_names[res->headers[i].type], res->headers[i].value);
|
||||
}
|
||||
|
||||
buf[buf_size] = '\n';
|
||||
|
||||
res->head = buf;
|
||||
res->head_len = buf_size + 1;
|
||||
}
|
||||
|
||||
bool http_loop_step_write_header(event_loop_conn *conn) {
|
||||
http_response *res = &((http_loop_ctx *)conn->ctx)->res;
|
||||
|
||||
// Create head response
|
||||
if (res->head == NULL) {
|
||||
http_loop_init_header(res);
|
||||
}
|
||||
|
||||
// Step has finished its work
|
||||
if (res->head_written == res->head_len) {
|
||||
return true;
|
||||
}
|
||||
|
||||
size_t bytes_to_write = MIN(res->head_len - res->head_written,
|
||||
EVENT_LOOP_BUFFER_SIZE - conn->wbuf_size);
|
||||
memcpy(&conn->wbuf[conn->wbuf_size], &res->head[res->head_written],
|
||||
bytes_to_write);
|
||||
|
||||
conn->wbuf_size += bytes_to_write;
|
||||
res->head_written += bytes_to_write;
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
bool http_loop_step_write_body(event_loop_conn *conn) {
|
||||
http_response *res = &((http_loop_ctx *)conn->ctx)->res;
|
||||
|
||||
if (res->body.expected_len == res->body.len) {
|
||||
return true;
|
||||
}
|
||||
|
||||
size_t bytes_to_write = MIN(res->body.expected_len - res->body.len,
|
||||
EVENT_LOOP_BUFFER_SIZE - conn->wbuf_size);
|
||||
|
||||
size_t bytes_written;
|
||||
|
||||
switch (res->body.type) {
|
||||
case http_body_buf:
|
||||
memcpy(&conn->wbuf[conn->wbuf_size], &(res->body.buf)[res->body.len],
|
||||
bytes_to_write);
|
||||
conn->wbuf_size += bytes_to_write;
|
||||
res->body.len += bytes_to_write;
|
||||
break;
|
||||
case http_body_file:
|
||||
bytes_written = fread(&conn->wbuf[conn->wbuf_size], sizeof(uint8_t),
|
||||
bytes_to_write, res->body.file);
|
||||
conn->wbuf_size += bytes_written;
|
||||
res->body.len += bytes_written;
|
||||
break;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
void http_loop_handle_response(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
|
||||
// Non-routed requests also need to be processed
|
||||
const http_step *steps =
|
||||
ctx->route != NULL ? ctx->route->steps_res : http_default_res_steps;
|
||||
|
||||
while ((conn->state == event_loop_conn_state_res) &&
|
||||
(steps[ctx->current_step] != NULL) && steps[ctx->current_step](conn)) {
|
||||
ctx->current_step++;
|
||||
}
|
||||
|
||||
// Response processing can stop early be switching the connection state
|
||||
// After response processing has finished its work, we reset the context to
|
||||
// prepare for a new request
|
||||
if ((conn->state != event_loop_conn_state_res) ||
|
||||
(steps[ctx->current_step] == NULL)) {
|
||||
http_loop_ctx_reset(ctx);
|
||||
|
||||
conn->state = event_loop_conn_state_req;
|
||||
}
|
||||
}
|
|
@ -1,179 +0,0 @@
|
|||
#include <math.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "http_loop.h"
|
||||
#include "lander.h"
|
||||
|
||||
// Just a naive pow implementation; might improve later
|
||||
static uint64_t ipow(uint64_t base, uint64_t power) {
|
||||
uint64_t res = 1;
|
||||
|
||||
while (power > 0) {
|
||||
res *= base;
|
||||
power--;
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
/*
|
||||
* Converts a string to a number, returning true if the string contained a valid
|
||||
* positive number.
|
||||
*/
|
||||
static bool string_to_num(size_t *res, const char *s, size_t len) {
|
||||
*res = 0;
|
||||
|
||||
for (size_t i = 0; i < len; i++) {
|
||||
int val = s[i] - '0';
|
||||
|
||||
if (val < 0 || val > 9) {
|
||||
return false;
|
||||
}
|
||||
|
||||
*res += (uint64_t)val * ipow(10, (len - 1) - i);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool http_loop_step_parse_content_length(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
|
||||
for (size_t i = 0; i < ctx->req.num_headers; i++) {
|
||||
const struct phr_header *header = &ctx->req.headers[i];
|
||||
|
||||
if (strncmp(header->name, "Content-Length", header->name_len) == 0) {
|
||||
// If the content length header is present but contains an invalid
|
||||
// number, we return a bad request error
|
||||
if (!string_to_num(&ctx->req.body.expected_len, header->value,
|
||||
header->value_len)) {
|
||||
ctx->res.status = http_bad_request;
|
||||
conn->state = event_loop_conn_state_res;
|
||||
|
||||
return true;
|
||||
}
|
||||
// The content length was actually 0, so we can instantly return here
|
||||
else if (ctx->req.body.expected_len == 0) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// A zero here means there's no content length header
|
||||
if (ctx->req.body.expected_len == 0) {
|
||||
ctx->res.status = http_length_required;
|
||||
conn->state = event_loop_conn_state_res;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/*
|
||||
* Try to find and parse the Content-Length header. This function returns true
|
||||
* if it was successful. If false is returned, the underlying step should
|
||||
* immediately exit.
|
||||
*/
|
||||
bool try_parse_content_length(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
|
||||
for (size_t i = 0; i < ctx->req.num_headers; i++) {
|
||||
const struct phr_header *header = &ctx->req.headers[i];
|
||||
|
||||
if (strncmp(header->name, "Content-Length", header->name_len) == 0) {
|
||||
// If the content length header is present but contains an invalid
|
||||
// number, we return a bad request error
|
||||
if (!string_to_num(&ctx->req.body.expected_len, header->value,
|
||||
header->value_len)) {
|
||||
ctx->res.status = http_bad_request;
|
||||
conn->state = event_loop_conn_state_res;
|
||||
|
||||
return false;
|
||||
}
|
||||
// The content length was actually 0, so we can instantly return here
|
||||
else if (ctx->req.body.expected_len == 0) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// A zero here means there's no content length header
|
||||
if (ctx->req.body.expected_len == 0) {
|
||||
ctx->res.status = http_length_required;
|
||||
conn->state = event_loop_conn_state_res;
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool http_loop_step_body_to_buf(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
|
||||
if (ctx->req.body.expected_len == 0) {
|
||||
if (!try_parse_content_length(conn)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
ctx->req.body.type = http_body_buf;
|
||||
ctx->req.body.buf = malloc(ctx->req.body.expected_len * sizeof(char));
|
||||
ctx->req.body.len = 0;
|
||||
}
|
||||
|
||||
size_t bytes_to_copy = MIN(conn->rbuf_size - conn->rbuf_read,
|
||||
ctx->req.body.expected_len - ctx->req.body.len);
|
||||
memcpy(&ctx->req.body.buf[ctx->req.body.len], &conn->rbuf[conn->rbuf_read],
|
||||
bytes_to_copy);
|
||||
ctx->req.body.len += bytes_to_copy;
|
||||
conn->rbuf_read += bytes_to_copy;
|
||||
|
||||
return ctx->req.body.len == ctx->req.body.expected_len;
|
||||
}
|
||||
|
||||
bool http_loop_step_body_to_file(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
|
||||
if (ctx->req.body.expected_len == 0) {
|
||||
if (!try_parse_content_length(conn)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
ctx->req.body.type = http_body_file;
|
||||
ctx->req.body.file = fopen(ctx->req.body.fname, "wb");
|
||||
ctx->req.body.len = 0;
|
||||
}
|
||||
|
||||
size_t bytes_to_write = MIN(conn->rbuf_size - conn->rbuf_read,
|
||||
ctx->req.body.expected_len - ctx->req.body.len);
|
||||
size_t bytes_written = fwrite(&conn->rbuf[conn->rbuf_read], sizeof(uint8_t),
|
||||
bytes_to_write, ctx->req.body.file);
|
||||
ctx->req.body.len += bytes_written;
|
||||
conn->rbuf_read += bytes_written;
|
||||
|
||||
return ctx->req.body.len == ctx->req.body.expected_len;
|
||||
}
|
||||
|
||||
bool http_loop_step_auth(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
|
||||
for (size_t i = 0; i < ctx->req.num_headers; i++) {
|
||||
const struct phr_header *header = &ctx->req.headers[i];
|
||||
|
||||
if ((strncmp("X-Api-Key", header->name, header->name_len) == 0) &&
|
||||
(strncmp(header->value, ctx->g->api_key, header->value_len) == 0) &&
|
||||
(strlen(ctx->g->api_key) == header->value_len)) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
ctx->res.status = http_unauthorized;
|
||||
conn->state = event_loop_conn_state_res;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool http_loop_step_switch_res(event_loop_conn *conn) {
|
||||
conn->state = event_loop_conn_state_res;
|
||||
|
||||
return true;
|
||||
}
|
|
@ -1,66 +1,27 @@
|
|||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "http/types.h"
|
||||
#include "http_loop.h"
|
||||
#include "lander.h"
|
||||
#include "lnm/common.h"
|
||||
#include "lsm/store.h"
|
||||
|
||||
#include "lander.h"
|
||||
|
||||
const char lander_key_charset[] =
|
||||
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
|
||||
|
||||
http_route lander_routes[] = {
|
||||
{.type = http_route_literal,
|
||||
.method = http_get,
|
||||
.path = "/",
|
||||
.steps = {lander_get_index, NULL},
|
||||
.steps_res = {http_loop_step_write_header, http_loop_step_write_body,
|
||||
NULL}},
|
||||
{
|
||||
.type = http_route_regex,
|
||||
.method = http_get,
|
||||
.path = "^/([^/]+)$",
|
||||
.steps = {lander_get_entry, NULL},
|
||||
.steps_res = {http_loop_step_write_header, lander_stream_body_to_client,
|
||||
NULL},
|
||||
},
|
||||
{
|
||||
.type = http_route_regex,
|
||||
.method = http_delete,
|
||||
.path = "^/([^/]+)$",
|
||||
.steps = {http_loop_step_auth, lander_remove_entry, NULL},
|
||||
.steps_res = {http_loop_step_write_header, http_loop_step_write_body,
|
||||
NULL},
|
||||
},
|
||||
{
|
||||
.type = http_route_regex,
|
||||
.method = http_post,
|
||||
.path = "^/s(l?)/([^/]*)$",
|
||||
.steps = {http_loop_step_auth, lander_post_redirect,
|
||||
http_loop_step_body_to_buf, lander_post_redirect_body_to_attr,
|
||||
NULL},
|
||||
.steps_res = {http_loop_step_write_header, http_loop_step_write_body,
|
||||
NULL},
|
||||
},
|
||||
{.type = http_route_regex,
|
||||
.method = http_post,
|
||||
.path = "^/p(l?)/([^/]*)$",
|
||||
.steps = {http_loop_step_auth, http_loop_step_parse_content_length,
|
||||
lander_post_paste, lander_stream_body_to_entry, NULL},
|
||||
.steps_res = {http_loop_step_write_header, http_loop_step_write_body,
|
||||
NULL}},
|
||||
{.type = http_route_regex,
|
||||
.method = http_post,
|
||||
.path = "^/f(l?)/([^/]*)$",
|
||||
.steps = {http_loop_step_auth, http_loop_step_parse_content_length,
|
||||
lander_post_file, lander_stream_body_to_entry, NULL},
|
||||
.steps_res = {http_loop_step_write_header, http_loop_step_write_body,
|
||||
NULL}},
|
||||
};
|
||||
|
||||
void *lander_gctx_init() { return calloc(1, sizeof(lander_gctx)); }
|
||||
|
||||
void *lander_ctx_init() { return calloc(1, sizeof(lander_ctx)); }
|
||||
lnm_err lander_ctx_init(void **c_ctx, void *gctx) {
|
||||
lander_ctx *ctx = calloc(1, sizeof(lander_ctx));
|
||||
|
||||
if (ctx == NULL) {
|
||||
return lnm_err_failed_alloc;
|
||||
}
|
||||
|
||||
*c_ctx = ctx;
|
||||
|
||||
return lnm_err_ok;
|
||||
}
|
||||
|
||||
void lander_ctx_reset(lander_ctx *ctx) {
|
||||
if (ctx->entry != NULL) {
|
||||
|
@ -72,36 +33,30 @@ void lander_ctx_reset(lander_ctx *ctx) {
|
|||
|
||||
void lander_ctx_free(lander_ctx *ctx) { free(ctx); }
|
||||
|
||||
void lander_header_to_attr(http_loop_ctx *ctx, const char *header_name,
|
||||
void lander_header_to_attr(lnm_http_loop_ctx *ctx, const char *header_name,
|
||||
lander_attr_type attr_type) {
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
|
||||
for (size_t i = 0; i < ctx->req.num_headers; i++) {
|
||||
const struct phr_header *header = &ctx->req.headers[i];
|
||||
const char *header_value;
|
||||
size_t header_value_len;
|
||||
|
||||
if (strncmp(header->name, header_name, header->name_len) == 0) {
|
||||
if (header->value_len > 0) {
|
||||
if (lnm_http_req_header_get_s(&header_value, &header_value_len, &ctx->req,
|
||||
header_name) == lnm_err_ok) {
|
||||
lsm_str *value;
|
||||
lsm_str_init_copy_n(&value, (char *)header->value, header->value_len);
|
||||
lsm_str_init_copy_n(&value, (char *)header_value, header_value_len);
|
||||
|
||||
lsm_entry_attr_insert(c_ctx->entry, attr_type, value);
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void lander_attr_to_header(http_loop_ctx *ctx, lander_attr_type attr_type,
|
||||
http_header header_type) {
|
||||
void lander_attr_to_header(lnm_http_loop_ctx *ctx, lander_attr_type attr_type,
|
||||
lnm_http_header header_type) {
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
lsm_str *value;
|
||||
|
||||
if (lsm_entry_attr_get(&value, c_ctx->entry, attr_type) == lsm_error_ok) {
|
||||
char *buf = malloc(lsm_str_len(value) + 1);
|
||||
memcpy(buf, lsm_str_ptr(value), lsm_str_len(value));
|
||||
buf[lsm_str_len(value)] = '\0';
|
||||
|
||||
http_res_add_header(&ctx->res, header_type, buf, true);
|
||||
lnm_http_res_add_header_len(&ctx->res, header_type,
|
||||
(char *)lsm_str_ptr(value), lsm_str_len(value),
|
||||
false);
|
||||
}
|
||||
}
|
||||
|
|
|
@ -1,29 +1,31 @@
|
|||
#include "lnm/http/req.h"
|
||||
#include "lnm/loop.h"
|
||||
|
||||
#include "lander.h"
|
||||
|
||||
bool lander_remove_entry(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
lnm_http_step_err lander_remove_entry(lnm_http_conn *conn) {
|
||||
lnm_http_loop_ctx *ctx = conn->ctx;
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
http_loop_gctx *gctx = ctx->g;
|
||||
lnm_http_loop_gctx *gctx = ctx->g;
|
||||
lander_gctx *c_gctx = gctx->c;
|
||||
|
||||
const char *key_s = &ctx->req.path[ctx->req.regex_groups[1].rm_so];
|
||||
int key_len = ctx->req.regex_groups[1].rm_eo - ctx->req.regex_groups[1].rm_so;
|
||||
const char *key_s;
|
||||
size_t key_len = lnm_http_req_route_segment(&key_s, &ctx->req, "key");
|
||||
|
||||
lsm_str *key;
|
||||
lsm_str_init_copy_n(&key, (char *)key_s, key_len);
|
||||
|
||||
switch (lsm_store_open_write(&c_ctx->entry, c_gctx->store, key)) {
|
||||
case lsm_error_ok:
|
||||
lsm_entry_remove(c_ctx->entry);
|
||||
break;
|
||||
case lsm_error_not_found:
|
||||
ctx->res.status = http_not_found;
|
||||
return true;
|
||||
ctx->res.status = lnm_http_status_not_found;
|
||||
break;
|
||||
default:
|
||||
ctx->res.status = http_internal_server_error;
|
||||
return true;
|
||||
ctx->res.status = lnm_http_status_internal_server_error;
|
||||
break;
|
||||
}
|
||||
|
||||
lsm_entry_remove(c_ctx->entry);
|
||||
|
||||
return true;
|
||||
return lnm_http_step_err_done;
|
||||
}
|
||||
|
|
|
@ -1,12 +1,15 @@
|
|||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "event_loop.h"
|
||||
#include "http/res.h"
|
||||
#include "http/types.h"
|
||||
#include "lander.h"
|
||||
#include "log.h"
|
||||
#include "lnm/http/consts.h"
|
||||
#include "lnm/http/loop.h"
|
||||
#include "lnm/http/req.h"
|
||||
#include "lnm/log.h"
|
||||
#include "lnm/loop.h"
|
||||
#include "lsm/store.h"
|
||||
|
||||
#include "lander.h"
|
||||
|
||||
static const char index_page[] =
|
||||
"<!DOCTYPE html>\n"
|
||||
"<html>\n"
|
||||
|
@ -17,18 +20,19 @@ static const char index_page[] =
|
|||
" </body>\n"
|
||||
"</html>\n";
|
||||
|
||||
bool lander_get_index(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
lnm_http_step_err lander_get_index(lnm_http_conn *conn) {
|
||||
lnm_http_loop_ctx *ctx = conn->ctx;
|
||||
|
||||
http_res_set_body_buf(&ctx->res, index_page, sizeof(index_page) - 1, false);
|
||||
http_res_set_mime_type(&ctx->res, http_mime_html);
|
||||
lnm_http_res_body_set_buf(&ctx->res, (char *)index_page,
|
||||
sizeof(index_page) - 1, false);
|
||||
lnm_http_res_add_header(&ctx->res, lnm_http_header_content_type, "text/html",
|
||||
false);
|
||||
|
||||
conn->state = event_loop_conn_state_res;
|
||||
return true;
|
||||
return lnm_http_step_err_done;
|
||||
}
|
||||
|
||||
void lander_get_redirect(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
lnm_http_step_err lander_get_redirect(lnm_http_conn *conn) {
|
||||
lnm_http_loop_ctx *ctx = conn->ctx;
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
|
||||
// For redirects, the URL is stored as an in-memory attribute
|
||||
|
@ -37,124 +41,107 @@ void lander_get_redirect(event_loop_conn *conn) {
|
|||
// This shouldn't be able to happen
|
||||
if (lsm_entry_attr_get(&url_attr_val, c_ctx->entry, lander_attr_type_url) !=
|
||||
lsm_error_ok) {
|
||||
error("Entry of type redirect detected without URL attribute");
|
||||
lnm_lerror("lander", "%s",
|
||||
"Entry of type redirect detected without URL attribute");
|
||||
|
||||
ctx->res.status = http_internal_server_error;
|
||||
ctx->res.status = lnm_http_status_internal_server_error;
|
||||
lsm_entry_close(c_ctx->entry);
|
||||
c_ctx->entry = NULL;
|
||||
|
||||
return;
|
||||
return lnm_http_step_err_res;
|
||||
}
|
||||
|
||||
char *buf = malloc(lsm_str_len(url_attr_val) + 1);
|
||||
memcpy(buf, lsm_str_ptr(url_attr_val), lsm_str_len(url_attr_val));
|
||||
lnm_http_res_add_header_len(&ctx->res, lnm_http_header_location,
|
||||
(char *)lsm_str_ptr(url_attr_val),
|
||||
lsm_str_len(url_attr_val), false);
|
||||
|
||||
buf[lsm_str_len(url_attr_val)] = '\0';
|
||||
ctx->res.status = lnm_http_status_moved_permanently;
|
||||
|
||||
ctx->res.status = http_moved_permanently;
|
||||
http_res_add_header(&ctx->res, http_header_location, buf, true);
|
||||
|
||||
// We no longer need the entry at this point, so we can unlock it early
|
||||
// This will also signal to the response code not to read any data from
|
||||
// the entry
|
||||
lsm_entry_close(c_ctx->entry);
|
||||
c_ctx->entry = NULL;
|
||||
return lnm_http_step_err_done;
|
||||
}
|
||||
|
||||
void lander_get_paste(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
lnm_err lander_entry_data_streamer(uint64_t *written, char *buf,
|
||||
lnm_http_conn *conn, uint64_t offset,
|
||||
uint64_t len) {
|
||||
// TODO respect offset variable
|
||||
|
||||
lnm_http_loop_ctx *ctx = conn->ctx;
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
|
||||
ctx->res.body.expected_len = lsm_entry_data_len(c_ctx->entry);
|
||||
http_res_set_mime_type(&ctx->res, http_mime_txt);
|
||||
lsm_entry_data_read(written, buf, c_ctx->entry, len);
|
||||
|
||||
return lnm_err_ok;
|
||||
}
|
||||
|
||||
void lander_get_file(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
lnm_http_step_err lander_get_paste(lnm_http_conn *conn) {
|
||||
lnm_http_loop_ctx *ctx = conn->ctx;
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
|
||||
ctx->res.body.expected_len = lsm_entry_data_len(c_ctx->entry);
|
||||
lnm_http_res_body_set_fn(&ctx->res, lander_entry_data_streamer,
|
||||
lsm_entry_data_len(c_ctx->entry));
|
||||
lnm_http_res_add_header(&ctx->res, lnm_http_header_content_type, "text/plain",
|
||||
false);
|
||||
|
||||
return lnm_http_step_err_done;
|
||||
}
|
||||
|
||||
lnm_http_step_err lander_get_file(lnm_http_conn *conn) {
|
||||
lnm_http_loop_ctx *ctx = conn->ctx;
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
|
||||
lnm_http_res_body_set_fn(&ctx->res, lander_entry_data_streamer,
|
||||
lsm_entry_data_len(c_ctx->entry));
|
||||
lander_attr_to_header(ctx, lander_attr_type_content_type,
|
||||
http_header_content_type);
|
||||
lnm_http_header_content_type);
|
||||
|
||||
lsm_str *value;
|
||||
char *buf;
|
||||
|
||||
if (lsm_entry_attr_get(&value, c_ctx->entry, lander_attr_type_file_name) ==
|
||||
lsm_error_ok) {
|
||||
buf = malloc(24 + lsm_str_len(value));
|
||||
int len = lsm_str_len(value);
|
||||
sprintf(buf, "attachment; filename=\"%*s\"", len, lsm_str_ptr(value));
|
||||
} else {
|
||||
buf = malloc(11);
|
||||
strcpy(buf, "attachment");
|
||||
return lnm_http_step_err_done;
|
||||
}
|
||||
|
||||
http_res_add_header(&ctx->res, http_header_content_disposition, buf, true);
|
||||
}
|
||||
|
||||
bool lander_get_entry(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
lnm_http_step_err lander_get_entry(lnm_http_conn *conn) {
|
||||
lnm_http_loop_ctx *ctx = conn->ctx;
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
http_loop_gctx *gctx = ctx->g;
|
||||
lnm_http_loop_gctx *gctx = ctx->g;
|
||||
lander_gctx *c_gctx = gctx->c;
|
||||
|
||||
const char *key_s = &ctx->req.path[ctx->req.regex_groups[1].rm_so];
|
||||
int key_len = ctx->req.regex_groups[1].rm_eo - ctx->req.regex_groups[1].rm_so;
|
||||
const char *key_s;
|
||||
size_t key_len = lnm_http_req_route_segment(&key_s, &ctx->req, "key");
|
||||
|
||||
lsm_str *key;
|
||||
lsm_str_init_copy_n(&key, (char *)key_s, key_len);
|
||||
lsm_error lsm_res = lsm_store_open_read(&c_ctx->entry, c_gctx->store, key);
|
||||
lsm_str_free(key);
|
||||
|
||||
switch (lsm_store_open_read(&c_ctx->entry, c_gctx->store, key)) {
|
||||
switch (lsm_res) {
|
||||
case lsm_error_ok:
|
||||
break;
|
||||
case lsm_error_not_found:
|
||||
ctx->res.status = http_not_found;
|
||||
conn->state = event_loop_conn_state_res;
|
||||
return true;
|
||||
ctx->res.status = lnm_http_status_not_found;
|
||||
return lnm_http_step_err_res;
|
||||
default:
|
||||
ctx->res.status = http_internal_server_error;
|
||||
conn->state = event_loop_conn_state_res;
|
||||
return true;
|
||||
ctx->res.status = lnm_http_status_internal_server_error;
|
||||
return lnm_http_step_err_res;
|
||||
}
|
||||
|
||||
lander_entry_type t;
|
||||
lsm_entry_attr_get_uint8_t((uint8_t *)&t, c_ctx->entry,
|
||||
lander_attr_type_entry_type);
|
||||
|
||||
lnm_http_step_err res;
|
||||
|
||||
switch (t) {
|
||||
case lander_entry_type_redirect:
|
||||
lander_get_redirect(conn);
|
||||
res = lander_get_redirect(conn);
|
||||
break;
|
||||
case lander_entry_type_paste:
|
||||
lander_get_paste(conn);
|
||||
res = lander_get_paste(conn);
|
||||
break;
|
||||
case lander_entry_type_file:
|
||||
lander_get_file(conn);
|
||||
res = lander_get_file(conn);
|
||||
break;
|
||||
default:
|
||||
ctx->res.status = lnm_http_status_internal_server_error;
|
||||
res = lnm_http_step_err_res;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool lander_stream_body_to_client(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
|
||||
if ((c_ctx->entry == NULL) ||
|
||||
(ctx->res.body.expected_len == ctx->res.body.len)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
uint64_t to_write = MIN(EVENT_LOOP_BUFFER_SIZE - conn->wbuf_size,
|
||||
ctx->res.body.expected_len - ctx->res.body.len);
|
||||
|
||||
uint64_t read = 0;
|
||||
lsm_entry_data_read(&read, (char *)&conn->wbuf[conn->wbuf_size], c_ctx->entry,
|
||||
to_write);
|
||||
|
||||
ctx->res.body.len += read;
|
||||
conn->wbuf_size += read;
|
||||
|
||||
return false;
|
||||
return res;
|
||||
}
|
||||
|
|
|
@ -1,9 +1,11 @@
|
|||
#include "http/res.h"
|
||||
#include "http/types.h"
|
||||
#include "lander.h"
|
||||
#include "log.h"
|
||||
#include <string.h>
|
||||
|
||||
#include "lnm/http/req.h"
|
||||
#include "lnm/loop.h"
|
||||
#include "lsm/store.h"
|
||||
|
||||
#include "lander.h"
|
||||
|
||||
static void randomize_key(char *key, int len) {
|
||||
size_t charset_len = strlen(lander_key_charset);
|
||||
|
||||
|
@ -19,39 +21,36 @@ static void randomize_key(char *key, int len) {
|
|||
*
|
||||
* @return true on success, false otherwise
|
||||
*/
|
||||
bool lander_insert_entry(http_loop_ctx *ctx) {
|
||||
http_loop_gctx *gctx = ctx->g;
|
||||
bool lander_insert_entry(lnm_http_loop_ctx *ctx, bool secure) {
|
||||
lnm_http_loop_gctx *gctx = ctx->g;
|
||||
lander_gctx *c_gctx = gctx->c;
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
|
||||
const char *key_s;
|
||||
size_t key_len = lnm_http_req_route_segment(&key_s, &ctx->req, "key");
|
||||
|
||||
lsm_str *key;
|
||||
int key_len;
|
||||
|
||||
if (ctx->req.regex_groups[2].rm_eo == ctx->req.regex_groups[2].rm_so) {
|
||||
if (key_len == 0) {
|
||||
// Generate a random key to insert
|
||||
bool secure =
|
||||
(ctx->req.regex_groups[1].rm_eo - ctx->req.regex_groups[1].rm_so) == 1;
|
||||
key_len = secure ? 16 : 4;
|
||||
char *key_s = malloc((key_len + 1) * sizeof(char));
|
||||
key_s = malloc((key_len + 1) * sizeof(char));
|
||||
|
||||
randomize_key(key_s, key_len);
|
||||
lsm_str_init(&key, key_s);
|
||||
randomize_key((char *)key_s, key_len);
|
||||
lsm_str_init(&key, (char *)key_s);
|
||||
} else {
|
||||
const char *key_s = &ctx->req.path[ctx->req.regex_groups[2].rm_so];
|
||||
key_len = ctx->req.regex_groups[2].rm_eo - ctx->req.regex_groups[2].rm_so;
|
||||
|
||||
lsm_str_init_copy_n(&key, key_s, key_len);
|
||||
}
|
||||
|
||||
// TODO free key on error
|
||||
switch (lsm_store_insert(&c_ctx->entry, c_gctx->store, key)) {
|
||||
case lsm_error_already_present:
|
||||
ctx->res.status = http_conflict;
|
||||
ctx->res.status = lnm_http_status_conflict;
|
||||
return false;
|
||||
case lsm_error_ok:
|
||||
break;
|
||||
default:
|
||||
ctx->res.status = http_internal_server_error;
|
||||
ctx->res.status = lnm_http_status_internal_server_error;
|
||||
return false;
|
||||
}
|
||||
|
||||
|
@ -61,61 +60,75 @@ bool lander_insert_entry(http_loop_ctx *ctx) {
|
|||
buf[0] = '/';
|
||||
buf[key_len + 1] = '\0';
|
||||
|
||||
http_res_add_header(&ctx->res, http_header_location, buf, true);
|
||||
ctx->res.status = http_created;
|
||||
lnm_http_res_add_header(&ctx->res, lnm_http_header_location, buf, true);
|
||||
ctx->res.status = lnm_http_status_created;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool lander_post_redirect(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
static lnm_http_step_err __lander_post_redirect(lnm_http_conn *conn,
|
||||
bool secure) {
|
||||
lnm_http_loop_ctx *ctx = conn->ctx;
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
|
||||
if (!lander_insert_entry(ctx)) {
|
||||
conn->state = event_loop_conn_state_res;
|
||||
return true;
|
||||
if (!lander_insert_entry(ctx, secure)) {
|
||||
return lnm_http_step_err_res;
|
||||
}
|
||||
|
||||
lsm_entry_attr_insert_uint8_t(c_ctx->entry, lander_attr_type_entry_type,
|
||||
lander_entry_type_redirect);
|
||||
|
||||
return true;
|
||||
return lnm_http_step_err_done;
|
||||
}
|
||||
|
||||
bool lander_post_redirect_body_to_attr(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
lnm_http_step_err lander_post_redirect(lnm_http_conn *conn) {
|
||||
return __lander_post_redirect(conn, false);
|
||||
}
|
||||
|
||||
lnm_http_step_err lander_post_redirect_secure(lnm_http_conn *conn) {
|
||||
return __lander_post_redirect(conn, true);
|
||||
}
|
||||
|
||||
lnm_http_step_err lander_post_redirect_body_to_attr(lnm_http_conn *conn) {
|
||||
lnm_http_loop_ctx *ctx = conn->ctx;
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
|
||||
lsm_str *attr_value;
|
||||
lsm_str_init_copy_n(&attr_value, ctx->req.body.buf, ctx->req.body.len);
|
||||
lsm_entry_attr_insert(c_ctx->entry, lander_attr_type_url, attr_value);
|
||||
|
||||
return true;
|
||||
return lnm_http_step_err_done;
|
||||
}
|
||||
|
||||
bool lander_post_paste(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
static lnm_http_step_err __lander_post_paste(lnm_http_conn *conn, bool secure) {
|
||||
lnm_http_loop_ctx *ctx = conn->ctx;
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
|
||||
if (!lander_insert_entry(ctx)) {
|
||||
conn->state = event_loop_conn_state_res;
|
||||
return true;
|
||||
if (!lander_insert_entry(ctx, secure)) {
|
||||
return lnm_http_step_err_res;
|
||||
}
|
||||
|
||||
lsm_entry_attr_insert_uint8_t(c_ctx->entry, lander_attr_type_entry_type,
|
||||
lander_entry_type_paste);
|
||||
lander_header_to_attr(ctx, "X-Lander-Filename", lander_attr_type_file_name);
|
||||
|
||||
return true;
|
||||
return lnm_http_step_err_done;
|
||||
}
|
||||
|
||||
bool lander_post_file(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
lnm_http_step_err lander_post_paste(lnm_http_conn *conn) {
|
||||
return __lander_post_paste(conn, false);
|
||||
}
|
||||
|
||||
lnm_http_step_err lander_post_paste_secure(lnm_http_conn *conn) {
|
||||
return __lander_post_paste(conn, true);
|
||||
}
|
||||
|
||||
static lnm_http_step_err __lander_post_file(lnm_http_conn *conn, bool secure) {
|
||||
lnm_http_loop_ctx *ctx = conn->ctx;
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
|
||||
if (!lander_insert_entry(ctx)) {
|
||||
conn->state = event_loop_conn_state_res;
|
||||
return true;
|
||||
if (!lander_insert_entry(ctx, secure)) {
|
||||
return lnm_http_step_err_res;
|
||||
}
|
||||
|
||||
lsm_entry_attr_insert_uint8_t(c_ctx->entry, lander_attr_type_entry_type,
|
||||
|
@ -124,5 +137,13 @@ bool lander_post_file(event_loop_conn *conn) {
|
|||
lander_attr_type_content_type);
|
||||
lander_header_to_attr(ctx, "X-Lander-Filename", lander_attr_type_file_name);
|
||||
|
||||
return true;
|
||||
return lnm_http_step_err_done;
|
||||
}
|
||||
|
||||
lnm_http_step_err lander_post_file(lnm_http_conn *conn) {
|
||||
return __lander_post_file(conn, false);
|
||||
}
|
||||
|
||||
lnm_http_step_err lander_post_file_secure(lnm_http_conn *conn) {
|
||||
return __lander_post_file(conn, true);
|
||||
}
|
||||
|
|
|
@ -1,22 +1,27 @@
|
|||
#include <string.h>
|
||||
|
||||
#include "lnm/http/loop.h"
|
||||
#include "lnm/loop.h"
|
||||
|
||||
#include "lander.h"
|
||||
|
||||
bool lander_stream_body_to_entry(event_loop_conn *conn) {
|
||||
http_loop_ctx *ctx = conn->ctx;
|
||||
lnm_http_step_err lander_stream_body_to_entry(lnm_http_conn *conn) {
|
||||
lnm_http_loop_ctx *ctx = conn->ctx;
|
||||
lander_ctx *c_ctx = ctx->c;
|
||||
|
||||
uint64_t to_append =
|
||||
MIN(conn->rbuf_size - conn->rbuf_read,
|
||||
LNM_MIN(conn->r.size - conn->r.read,
|
||||
ctx->req.body.expected_len - lsm_entry_data_len(c_ctx->entry));
|
||||
|
||||
lsm_str *data;
|
||||
lsm_str_init_copy_n(&data, (char *)&conn->rbuf[conn->rbuf_read], to_append);
|
||||
lsm_str_init_copy_n(&data, (char *)&conn->r.buf[conn->r.read], to_append);
|
||||
lsm_entry_data_append(c_ctx->entry, data);
|
||||
|
||||
conn->rbuf_read += to_append;
|
||||
conn->r.read += to_append;
|
||||
|
||||
lsm_str_free(data);
|
||||
|
||||
return lsm_entry_data_len(c_ctx->entry) == ctx->req.body.expected_len;
|
||||
return lsm_entry_data_len(c_ctx->entry) == ctx->req.body.expected_len
|
||||
? lnm_http_step_err_done
|
||||
: lnm_http_step_err_io_needed;
|
||||
}
|
||||
|
|
31
src/log.c
31
src/log.c
|
@ -1,31 +0,0 @@
|
|||
#include <time.h>
|
||||
|
||||
#include "log.h"
|
||||
|
||||
const char *log_level_names[] = {"DEBUG", "INFO ", "WARN ", "ERROR",
|
||||
"CRITICAL"};
|
||||
|
||||
log_level _log_level = log_level_debug;
|
||||
|
||||
void _lander_log(log_level level, FILE *f, const char *fmt, ...) {
|
||||
if (level < _log_level) {
|
||||
return;
|
||||
}
|
||||
|
||||
// Log to stdout by default
|
||||
f = (f == NULL) ? stdout : f;
|
||||
|
||||
char date_str[32];
|
||||
|
||||
time_t now = time(NULL);
|
||||
strftime(date_str, sizeof(date_str) - 1, "%Y-%m-%d %H:%M:%S",
|
||||
localtime(&now));
|
||||
fprintf(f, "[%s][%s] ", date_str, log_level_names[level]);
|
||||
|
||||
va_list ap;
|
||||
va_start(ap, fmt);
|
||||
vfprintf(f, fmt, ap);
|
||||
va_end(ap);
|
||||
|
||||
fprintf(f, "\n");
|
||||
}
|
108
src/main.c
108
src/main.c
|
@ -2,13 +2,93 @@
|
|||
#include <stdlib.h>
|
||||
#include <time.h>
|
||||
|
||||
#include "lnm/http/loop.h"
|
||||
#include "lnm/log.h"
|
||||
|
||||
#include "lander.h"
|
||||
#include "log.h"
|
||||
|
||||
const char *lander_server = "lander/" LANDER_VERSION;
|
||||
|
||||
lnm_http_loop *loop_init(lander_gctx *gctx, const char *api_key) {
|
||||
lnm_http_loop *hl;
|
||||
lnm_http_loop_init(&hl, gctx, lander_ctx_init,
|
||||
(lnm_http_ctx_reset_fn)lander_ctx_reset,
|
||||
(lnm_http_ctx_free_fn)lander_ctx_free);
|
||||
lnm_http_loop_set_api_key(hl, api_key);
|
||||
lnm_http_loop_set_server(hl, lander_server);
|
||||
|
||||
lnm_http_router *router;
|
||||
lnm_http_router_init(&router);
|
||||
|
||||
lnm_http_route *route;
|
||||
lnm_http_router_add(&route, router, lnm_http_method_get, "/");
|
||||
lnm_http_route_step_append(route, lander_get_index, false);
|
||||
|
||||
lnm_http_router_add(&route, router, lnm_http_method_get, "/:key");
|
||||
lnm_http_route_step_append(route, lander_get_entry, false);
|
||||
|
||||
lnm_http_router_add(&route, router, lnm_http_method_delete, "/:key");
|
||||
lnm_http_route_step_append(route, lnm_http_loop_step_auth, false);
|
||||
lnm_http_route_step_append(route, lander_remove_entry, false);
|
||||
|
||||
lnm_http_router_add(&route, router, lnm_http_method_post, "/s/");
|
||||
lnm_http_route_step_append(route, lnm_http_loop_step_auth, false);
|
||||
lnm_http_route_step_append(route, lander_post_redirect, false);
|
||||
lnm_http_route_step_append(route, lnm_http_loop_step_body_to_buf, false);
|
||||
lnm_http_route_step_append(route, lander_post_redirect_body_to_attr, false);
|
||||
|
||||
lnm_http_router_add(&route, router, lnm_http_method_post, "/sl/");
|
||||
lnm_http_route_step_append(route, lnm_http_loop_step_auth, false);
|
||||
lnm_http_route_step_append(route, lander_post_redirect_secure, false);
|
||||
lnm_http_route_step_append(route, lnm_http_loop_step_body_to_buf, false);
|
||||
lnm_http_route_step_append(route, lander_post_redirect_body_to_attr, false);
|
||||
|
||||
lnm_http_router_add(&route, router, lnm_http_method_post, "/s/:key");
|
||||
lnm_http_route_step_append(route, lnm_http_loop_step_auth, false);
|
||||
lnm_http_route_step_append(route, lander_post_redirect, false);
|
||||
lnm_http_route_step_append(route, lnm_http_loop_step_body_to_buf, false);
|
||||
lnm_http_route_step_append(route, lander_post_redirect_body_to_attr, false);
|
||||
|
||||
lnm_http_router_add(&route, router, lnm_http_method_post, "/p/");
|
||||
lnm_http_route_step_append(route, lnm_http_loop_step_auth, false);
|
||||
lnm_http_route_step_append(route, lander_post_paste, false);
|
||||
lnm_http_route_step_append(route, lander_stream_body_to_entry, false);
|
||||
|
||||
lnm_http_router_add(&route, router, lnm_http_method_post, "/pl/");
|
||||
lnm_http_route_step_append(route, lnm_http_loop_step_auth, false);
|
||||
lnm_http_route_step_append(route, lander_post_paste_secure, false);
|
||||
lnm_http_route_step_append(route, lander_stream_body_to_entry, false);
|
||||
|
||||
lnm_http_router_add(&route, router, lnm_http_method_post, "/p/:key");
|
||||
lnm_http_route_step_append(route, lnm_http_loop_step_auth, false);
|
||||
lnm_http_route_step_append(route, lander_post_paste, false);
|
||||
lnm_http_route_step_append(route, lander_stream_body_to_entry, false);
|
||||
|
||||
lnm_http_router_add(&route, router, lnm_http_method_post, "/f/");
|
||||
lnm_http_route_step_append(route, lnm_http_loop_step_auth, false);
|
||||
lnm_http_route_step_append(route, lander_post_file, false);
|
||||
lnm_http_route_step_append(route, lander_stream_body_to_entry, false);
|
||||
|
||||
lnm_http_router_add(&route, router, lnm_http_method_post, "/fl/");
|
||||
lnm_http_route_step_append(route, lnm_http_loop_step_auth, false);
|
||||
lnm_http_route_step_append(route, lander_post_file_secure, false);
|
||||
lnm_http_route_step_append(route, lander_stream_body_to_entry, false);
|
||||
|
||||
lnm_http_router_add(&route, router, lnm_http_method_post, "/f/:key");
|
||||
lnm_http_route_step_append(route, lnm_http_loop_step_auth, false);
|
||||
lnm_http_route_step_append(route, lander_post_file, false);
|
||||
lnm_http_route_step_append(route, lander_stream_body_to_entry, false);
|
||||
|
||||
lnm_http_loop_router_set(hl, router);
|
||||
|
||||
return hl;
|
||||
}
|
||||
|
||||
#define ENV(var, env_var) \
|
||||
const char *var = getenv(env_var); \
|
||||
if (var == NULL) { \
|
||||
critical(1, "Missing environment variable %s", env_var); \
|
||||
lnm_lcritical("main", "Missing environment variable %s", env_var); \
|
||||
exit(1); \
|
||||
}
|
||||
|
||||
#define ENV_OPT(var, env_var, default) \
|
||||
|
@ -18,9 +98,11 @@
|
|||
}
|
||||
|
||||
int main() {
|
||||
setvbuf(stdout, NULL, _IONBF, 0);
|
||||
srand(time(NULL));
|
||||
|
||||
lnm_log_init_global();
|
||||
lnm_log_register_stdout(lnm_log_level_info);
|
||||
|
||||
ENV(api_key, "LANDER_API_KEY");
|
||||
ENV_OPT(port_str, "LANDER_PORT", "18080");
|
||||
ENV_OPT(data_dir_s, "LANDER_DATA_DIR", ".");
|
||||
|
@ -28,7 +110,8 @@ int main() {
|
|||
int port = atoi(port_str);
|
||||
|
||||
if (port <= 0 || port >= 1 << 16) {
|
||||
critical(1, "Invalid TCP port %s", port_str);
|
||||
lnm_lcritical("main", "Invalid TCP port %s", port_str);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
lander_gctx *c_gctx = lander_gctx_init();
|
||||
|
@ -37,19 +120,14 @@ int main() {
|
|||
lsm_str *data_dir;
|
||||
lsm_str_init_copy(&data_dir, (char *)data_dir_s);
|
||||
|
||||
info("Initializing store from path '%s'", data_dir_s);
|
||||
lnm_linfo("main", "Initializing store from path '%s'", data_dir_s);
|
||||
|
||||
if (lsm_store_load(&c_gctx->store, data_dir) != lsm_error_ok) {
|
||||
critical(2, "Failed to load existing store.");
|
||||
lnm_lcritical("main", "%s", "Failed to load existing store.");
|
||||
}
|
||||
|
||||
info("Store loaded containing %lu entries", lsm_store_size(c_gctx->store));
|
||||
|
||||
http_loop *hl = http_loop_init(
|
||||
lander_routes, sizeof(lander_routes) / sizeof(lander_routes[0]), c_gctx,
|
||||
lander_ctx_init, (void (*)(void *))lander_ctx_reset,
|
||||
(void (*)(void *))lander_ctx_free);
|
||||
http_loop_set_api_key(hl, api_key);
|
||||
|
||||
http_loop_run(hl, port);
|
||||
lnm_linfo("main", "Store loaded containing %lu entries",
|
||||
lsm_store_size(c_gctx->store));
|
||||
lnm_http_loop *hl = loop_init(c_gctx, api_key);
|
||||
lnm_http_loop_run(hl, port, 1, 0);
|
||||
}
|
||||
|
|
|
@ -1,87 +0,0 @@
|
|||
/*
|
||||
* Copyright (c) 2009-2014 Kazuho Oku, Tokuhiro Matsuno, Daisuke Murase,
|
||||
* Shigeo Mitsunari
|
||||
*
|
||||
* The software is licensed under either the MIT License (below) or the Perl
|
||||
* license.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||||
* IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef picohttpparser_h
|
||||
#define picohttpparser_h
|
||||
|
||||
#include <sys/types.h>
|
||||
|
||||
#ifdef _MSC_VER
|
||||
#define ssize_t intptr_t
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* contains name and value of a header (name == NULL if is a continuing line
|
||||
* of a multiline header */
|
||||
struct phr_header {
|
||||
const char *name;
|
||||
size_t name_len;
|
||||
const char *value;
|
||||
size_t value_len;
|
||||
};
|
||||
|
||||
/* returns number of bytes consumed if successful, -2 if request is partial,
|
||||
* -1 if failed */
|
||||
int phr_parse_request(const char *buf, size_t len, const char **method, size_t *method_len, const char **path, size_t *path_len,
|
||||
int *minor_version, struct phr_header *headers, size_t *num_headers, size_t last_len);
|
||||
|
||||
/* ditto */
|
||||
int phr_parse_response(const char *_buf, size_t len, int *minor_version, int *status, const char **msg, size_t *msg_len,
|
||||
struct phr_header *headers, size_t *num_headers, size_t last_len);
|
||||
|
||||
/* ditto */
|
||||
int phr_parse_headers(const char *buf, size_t len, struct phr_header *headers, size_t *num_headers, size_t last_len);
|
||||
|
||||
/* should be zero-filled before start */
|
||||
struct phr_chunked_decoder {
|
||||
size_t bytes_left_in_chunk; /* number of bytes left in current chunk */
|
||||
char consume_trailer; /* if trailing headers should be consumed */
|
||||
char _hex_count;
|
||||
char _state;
|
||||
};
|
||||
|
||||
/* the function rewrites the buffer given as (buf, bufsz) removing the chunked-
|
||||
* encoding headers. When the function returns without an error, bufsz is
|
||||
* updated to the length of the decoded data available. Applications should
|
||||
* repeatedly call the function while it returns -2 (incomplete) every time
|
||||
* supplying newly arrived data. If the end of the chunked-encoded data is
|
||||
* found, the function returns a non-negative number indicating the number of
|
||||
* octets left undecoded, that starts from the offset returned by `*bufsz`.
|
||||
* Returns -1 on error.
|
||||
*/
|
||||
ssize_t phr_decode_chunked(struct phr_chunked_decoder *decoder, char *buf, size_t *bufsz);
|
||||
|
||||
/* returns if the chunked decoder is in middle of chunked data */
|
||||
int phr_decode_chunked_is_in_data(struct phr_chunked_decoder *decoder);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
|
@ -1,665 +0,0 @@
|
|||
/*
|
||||
* Copyright (c) 2009-2014 Kazuho Oku, Tokuhiro Matsuno, Daisuke Murase,
|
||||
* Shigeo Mitsunari
|
||||
*
|
||||
* The software is licensed under either the MIT License (below) or the Perl
|
||||
* license.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to
|
||||
* deal in the Software without restriction, including without limitation the
|
||||
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
* sell copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||||
* IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <assert.h>
|
||||
#include <stddef.h>
|
||||
#include <string.h>
|
||||
#ifdef __SSE4_2__
|
||||
#ifdef _MSC_VER
|
||||
#include <nmmintrin.h>
|
||||
#else
|
||||
#include <x86intrin.h>
|
||||
#endif
|
||||
#endif
|
||||
#include "picohttpparser.h"
|
||||
|
||||
#if __GNUC__ >= 3
|
||||
#define likely(x) __builtin_expect(!!(x), 1)
|
||||
#define unlikely(x) __builtin_expect(!!(x), 0)
|
||||
#else
|
||||
#define likely(x) (x)
|
||||
#define unlikely(x) (x)
|
||||
#endif
|
||||
|
||||
#ifdef _MSC_VER
|
||||
#define ALIGNED(n) _declspec(align(n))
|
||||
#else
|
||||
#define ALIGNED(n) __attribute__((aligned(n)))
|
||||
#endif
|
||||
|
||||
#define IS_PRINTABLE_ASCII(c) ((unsigned char)(c)-040u < 0137u)
|
||||
|
||||
#define CHECK_EOF() \
|
||||
if (buf == buf_end) { \
|
||||
*ret = -2; \
|
||||
return NULL; \
|
||||
}
|
||||
|
||||
#define EXPECT_CHAR_NO_CHECK(ch) \
|
||||
if (*buf++ != ch) { \
|
||||
*ret = -1; \
|
||||
return NULL; \
|
||||
}
|
||||
|
||||
#define EXPECT_CHAR(ch) \
|
||||
CHECK_EOF(); \
|
||||
EXPECT_CHAR_NO_CHECK(ch);
|
||||
|
||||
#define ADVANCE_TOKEN(tok, toklen) \
|
||||
do { \
|
||||
const char *tok_start = buf; \
|
||||
static const char ALIGNED(16) ranges2[16] = "\000\040\177\177"; \
|
||||
int found2; \
|
||||
buf = findchar_fast(buf, buf_end, ranges2, 4, &found2); \
|
||||
if (!found2) { \
|
||||
CHECK_EOF(); \
|
||||
} \
|
||||
while (1) { \
|
||||
if (*buf == ' ') { \
|
||||
break; \
|
||||
} else if (unlikely(!IS_PRINTABLE_ASCII(*buf))) { \
|
||||
if ((unsigned char)*buf < '\040' || *buf == '\177') { \
|
||||
*ret = -1; \
|
||||
return NULL; \
|
||||
} \
|
||||
} \
|
||||
++buf; \
|
||||
CHECK_EOF(); \
|
||||
} \
|
||||
tok = tok_start; \
|
||||
toklen = buf - tok_start; \
|
||||
} while (0)
|
||||
|
||||
static const char *token_char_map = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
|
||||
"\0\1\0\1\1\1\1\1\0\0\1\1\0\1\1\0\1\1\1\1\1\1\1\1\1\1\0\0\0\0\0\0"
|
||||
"\0\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\0\0\0\1\1"
|
||||
"\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\0\1\0\1\0"
|
||||
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
|
||||
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
|
||||
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
|
||||
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
|
||||
|
||||
static const char *findchar_fast(const char *buf, const char *buf_end, const char *ranges, size_t ranges_size, int *found)
|
||||
{
|
||||
*found = 0;
|
||||
#if __SSE4_2__
|
||||
if (likely(buf_end - buf >= 16)) {
|
||||
__m128i ranges16 = _mm_loadu_si128((const __m128i *)ranges);
|
||||
|
||||
size_t left = (buf_end - buf) & ~15;
|
||||
do {
|
||||
__m128i b16 = _mm_loadu_si128((const __m128i *)buf);
|
||||
int r = _mm_cmpestri(ranges16, ranges_size, b16, 16, _SIDD_LEAST_SIGNIFICANT | _SIDD_CMP_RANGES | _SIDD_UBYTE_OPS);
|
||||
if (unlikely(r != 16)) {
|
||||
buf += r;
|
||||
*found = 1;
|
||||
break;
|
||||
}
|
||||
buf += 16;
|
||||
left -= 16;
|
||||
} while (likely(left != 0));
|
||||
}
|
||||
#else
|
||||
/* suppress unused parameter warning */
|
||||
(void)buf_end;
|
||||
(void)ranges;
|
||||
(void)ranges_size;
|
||||
#endif
|
||||
return buf;
|
||||
}
|
||||
|
||||
static const char *get_token_to_eol(const char *buf, const char *buf_end, const char **token, size_t *token_len, int *ret)
|
||||
{
|
||||
const char *token_start = buf;
|
||||
|
||||
#ifdef __SSE4_2__
|
||||
static const char ALIGNED(16) ranges1[16] = "\0\010" /* allow HT */
|
||||
"\012\037" /* allow SP and up to but not including DEL */
|
||||
"\177\177"; /* allow chars w. MSB set */
|
||||
int found;
|
||||
buf = findchar_fast(buf, buf_end, ranges1, 6, &found);
|
||||
if (found)
|
||||
goto FOUND_CTL;
|
||||
#else
|
||||
/* find non-printable char within the next 8 bytes, this is the hottest code; manually inlined */
|
||||
while (likely(buf_end - buf >= 8)) {
|
||||
#define DOIT() \
|
||||
do { \
|
||||
if (unlikely(!IS_PRINTABLE_ASCII(*buf))) \
|
||||
goto NonPrintable; \
|
||||
++buf; \
|
||||
} while (0)
|
||||
DOIT();
|
||||
DOIT();
|
||||
DOIT();
|
||||
DOIT();
|
||||
DOIT();
|
||||
DOIT();
|
||||
DOIT();
|
||||
DOIT();
|
||||
#undef DOIT
|
||||
continue;
|
||||
NonPrintable:
|
||||
if ((likely((unsigned char)*buf < '\040') && likely(*buf != '\011')) || unlikely(*buf == '\177')) {
|
||||
goto FOUND_CTL;
|
||||
}
|
||||
++buf;
|
||||
}
|
||||
#endif
|
||||
for (;; ++buf) {
|
||||
CHECK_EOF();
|
||||
if (unlikely(!IS_PRINTABLE_ASCII(*buf))) {
|
||||
if ((likely((unsigned char)*buf < '\040') && likely(*buf != '\011')) || unlikely(*buf == '\177')) {
|
||||
goto FOUND_CTL;
|
||||
}
|
||||
}
|
||||
}
|
||||
FOUND_CTL:
|
||||
if (likely(*buf == '\015')) {
|
||||
++buf;
|
||||
EXPECT_CHAR('\012');
|
||||
*token_len = buf - 2 - token_start;
|
||||
} else if (*buf == '\012') {
|
||||
*token_len = buf - token_start;
|
||||
++buf;
|
||||
} else {
|
||||
*ret = -1;
|
||||
return NULL;
|
||||
}
|
||||
*token = token_start;
|
||||
|
||||
return buf;
|
||||
}
|
||||
|
||||
static const char *is_complete(const char *buf, const char *buf_end, size_t last_len, int *ret)
|
||||
{
|
||||
int ret_cnt = 0;
|
||||
buf = last_len < 3 ? buf : buf + last_len - 3;
|
||||
|
||||
while (1) {
|
||||
CHECK_EOF();
|
||||
if (*buf == '\015') {
|
||||
++buf;
|
||||
CHECK_EOF();
|
||||
EXPECT_CHAR('\012');
|
||||
++ret_cnt;
|
||||
} else if (*buf == '\012') {
|
||||
++buf;
|
||||
++ret_cnt;
|
||||
} else {
|
||||
++buf;
|
||||
ret_cnt = 0;
|
||||
}
|
||||
if (ret_cnt == 2) {
|
||||
return buf;
|
||||
}
|
||||
}
|
||||
|
||||
*ret = -2;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
#define PARSE_INT(valp_, mul_) \
|
||||
if (*buf < '0' || '9' < *buf) { \
|
||||
buf++; \
|
||||
*ret = -1; \
|
||||
return NULL; \
|
||||
} \
|
||||
*(valp_) = (mul_) * (*buf++ - '0');
|
||||
|
||||
#define PARSE_INT_3(valp_) \
|
||||
do { \
|
||||
int res_ = 0; \
|
||||
PARSE_INT(&res_, 100) \
|
||||
*valp_ = res_; \
|
||||
PARSE_INT(&res_, 10) \
|
||||
*valp_ += res_; \
|
||||
PARSE_INT(&res_, 1) \
|
||||
*valp_ += res_; \
|
||||
} while (0)
|
||||
|
||||
/* returned pointer is always within [buf, buf_end), or null */
|
||||
static const char *parse_token(const char *buf, const char *buf_end, const char **token, size_t *token_len, char next_char,
|
||||
int *ret)
|
||||
{
|
||||
/* We use pcmpestri to detect non-token characters. This instruction can take no more than eight character ranges (8*2*8=128
|
||||
* bits that is the size of a SSE register). Due to this restriction, characters `|` and `~` are handled in the slow loop. */
|
||||
static const char ALIGNED(16) ranges[] = "\x00 " /* control chars and up to SP */
|
||||
"\"\"" /* 0x22 */
|
||||
"()" /* 0x28,0x29 */
|
||||
",," /* 0x2c */
|
||||
"//" /* 0x2f */
|
||||
":@" /* 0x3a-0x40 */
|
||||
"[]" /* 0x5b-0x5d */
|
||||
"{\xff"; /* 0x7b-0xff */
|
||||
const char *buf_start = buf;
|
||||
int found;
|
||||
buf = findchar_fast(buf, buf_end, ranges, sizeof(ranges) - 1, &found);
|
||||
if (!found) {
|
||||
CHECK_EOF();
|
||||
}
|
||||
while (1) {
|
||||
if (*buf == next_char) {
|
||||
break;
|
||||
} else if (!token_char_map[(unsigned char)*buf]) {
|
||||
*ret = -1;
|
||||
return NULL;
|
||||
}
|
||||
++buf;
|
||||
CHECK_EOF();
|
||||
}
|
||||
*token = buf_start;
|
||||
*token_len = buf - buf_start;
|
||||
return buf;
|
||||
}
|
||||
|
||||
/* returned pointer is always within [buf, buf_end), or null */
|
||||
static const char *parse_http_version(const char *buf, const char *buf_end, int *minor_version, int *ret)
|
||||
{
|
||||
/* we want at least [HTTP/1.<two chars>] to try to parse */
|
||||
if (buf_end - buf < 9) {
|
||||
*ret = -2;
|
||||
return NULL;
|
||||
}
|
||||
EXPECT_CHAR_NO_CHECK('H');
|
||||
EXPECT_CHAR_NO_CHECK('T');
|
||||
EXPECT_CHAR_NO_CHECK('T');
|
||||
EXPECT_CHAR_NO_CHECK('P');
|
||||
EXPECT_CHAR_NO_CHECK('/');
|
||||
EXPECT_CHAR_NO_CHECK('1');
|
||||
EXPECT_CHAR_NO_CHECK('.');
|
||||
PARSE_INT(minor_version, 1);
|
||||
return buf;
|
||||
}
|
||||
|
||||
static const char *parse_headers(const char *buf, const char *buf_end, struct phr_header *headers, size_t *num_headers,
|
||||
size_t max_headers, int *ret)
|
||||
{
|
||||
for (;; ++*num_headers) {
|
||||
CHECK_EOF();
|
||||
if (*buf == '\015') {
|
||||
++buf;
|
||||
EXPECT_CHAR('\012');
|
||||
break;
|
||||
} else if (*buf == '\012') {
|
||||
++buf;
|
||||
break;
|
||||
}
|
||||
if (*num_headers == max_headers) {
|
||||
*ret = -1;
|
||||
return NULL;
|
||||
}
|
||||
if (!(*num_headers != 0 && (*buf == ' ' || *buf == '\t'))) {
|
||||
/* parsing name, but do not discard SP before colon, see
|
||||
* http://www.mozilla.org/security/announce/2006/mfsa2006-33.html */
|
||||
if ((buf = parse_token(buf, buf_end, &headers[*num_headers].name, &headers[*num_headers].name_len, ':', ret)) == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
if (headers[*num_headers].name_len == 0) {
|
||||
*ret = -1;
|
||||
return NULL;
|
||||
}
|
||||
++buf;
|
||||
for (;; ++buf) {
|
||||
CHECK_EOF();
|
||||
if (!(*buf == ' ' || *buf == '\t')) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
headers[*num_headers].name = NULL;
|
||||
headers[*num_headers].name_len = 0;
|
||||
}
|
||||
const char *value;
|
||||
size_t value_len;
|
||||
if ((buf = get_token_to_eol(buf, buf_end, &value, &value_len, ret)) == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
/* remove trailing SPs and HTABs */
|
||||
const char *value_end = value + value_len;
|
||||
for (; value_end != value; --value_end) {
|
||||
const char c = *(value_end - 1);
|
||||
if (!(c == ' ' || c == '\t')) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
headers[*num_headers].value = value;
|
||||
headers[*num_headers].value_len = value_end - value;
|
||||
}
|
||||
return buf;
|
||||
}
|
||||
|
||||
static const char *parse_request(const char *buf, const char *buf_end, const char **method, size_t *method_len, const char **path,
|
||||
size_t *path_len, int *minor_version, struct phr_header *headers, size_t *num_headers,
|
||||
size_t max_headers, int *ret)
|
||||
{
|
||||
/* skip first empty line (some clients add CRLF after POST content) */
|
||||
CHECK_EOF();
|
||||
if (*buf == '\015') {
|
||||
++buf;
|
||||
EXPECT_CHAR('\012');
|
||||
} else if (*buf == '\012') {
|
||||
++buf;
|
||||
}
|
||||
|
||||
/* parse request line */
|
||||
if ((buf = parse_token(buf, buf_end, method, method_len, ' ', ret)) == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
do {
|
||||
++buf;
|
||||
CHECK_EOF();
|
||||
} while (*buf == ' ');
|
||||
ADVANCE_TOKEN(*path, *path_len);
|
||||
do {
|
||||
++buf;
|
||||
CHECK_EOF();
|
||||
} while (*buf == ' ');
|
||||
if (*method_len == 0 || *path_len == 0) {
|
||||
*ret = -1;
|
||||
return NULL;
|
||||
}
|
||||
if ((buf = parse_http_version(buf, buf_end, minor_version, ret)) == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
if (*buf == '\015') {
|
||||
++buf;
|
||||
EXPECT_CHAR('\012');
|
||||
} else if (*buf == '\012') {
|
||||
++buf;
|
||||
} else {
|
||||
*ret = -1;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return parse_headers(buf, buf_end, headers, num_headers, max_headers, ret);
|
||||
}
|
||||
|
||||
int phr_parse_request(const char *buf_start, size_t len, const char **method, size_t *method_len, const char **path,
|
||||
size_t *path_len, int *minor_version, struct phr_header *headers, size_t *num_headers, size_t last_len)
|
||||
{
|
||||
const char *buf = buf_start, *buf_end = buf_start + len;
|
||||
size_t max_headers = *num_headers;
|
||||
int r;
|
||||
|
||||
*method = NULL;
|
||||
*method_len = 0;
|
||||
*path = NULL;
|
||||
*path_len = 0;
|
||||
*minor_version = -1;
|
||||
*num_headers = 0;
|
||||
|
||||
/* if last_len != 0, check if the request is complete (a fast countermeasure
|
||||
againt slowloris */
|
||||
if (last_len != 0 && is_complete(buf, buf_end, last_len, &r) == NULL) {
|
||||
return r;
|
||||
}
|
||||
|
||||
if ((buf = parse_request(buf, buf_end, method, method_len, path, path_len, minor_version, headers, num_headers, max_headers,
|
||||
&r)) == NULL) {
|
||||
return r;
|
||||
}
|
||||
|
||||
return (int)(buf - buf_start);
|
||||
}
|
||||
|
||||
static const char *parse_response(const char *buf, const char *buf_end, int *minor_version, int *status, const char **msg,
|
||||
size_t *msg_len, struct phr_header *headers, size_t *num_headers, size_t max_headers, int *ret)
|
||||
{
|
||||
/* parse "HTTP/1.x" */
|
||||
if ((buf = parse_http_version(buf, buf_end, minor_version, ret)) == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
/* skip space */
|
||||
if (*buf != ' ') {
|
||||
*ret = -1;
|
||||
return NULL;
|
||||
}
|
||||
do {
|
||||
++buf;
|
||||
CHECK_EOF();
|
||||
} while (*buf == ' ');
|
||||
/* parse status code, we want at least [:digit:][:digit:][:digit:]<other char> to try to parse */
|
||||
if (buf_end - buf < 4) {
|
||||
*ret = -2;
|
||||
return NULL;
|
||||
}
|
||||
PARSE_INT_3(status);
|
||||
|
||||
/* get message including preceding space */
|
||||
if ((buf = get_token_to_eol(buf, buf_end, msg, msg_len, ret)) == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
if (*msg_len == 0) {
|
||||
/* ok */
|
||||
} else if (**msg == ' ') {
|
||||
/* Remove preceding space. Successful return from `get_token_to_eol` guarantees that we would hit something other than SP
|
||||
* before running past the end of the given buffer. */
|
||||
do {
|
||||
++*msg;
|
||||
--*msg_len;
|
||||
} while (**msg == ' ');
|
||||
} else {
|
||||
/* garbage found after status code */
|
||||
*ret = -1;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return parse_headers(buf, buf_end, headers, num_headers, max_headers, ret);
|
||||
}
|
||||
|
||||
int phr_parse_response(const char *buf_start, size_t len, int *minor_version, int *status, const char **msg, size_t *msg_len,
|
||||
struct phr_header *headers, size_t *num_headers, size_t last_len)
|
||||
{
|
||||
const char *buf = buf_start, *buf_end = buf + len;
|
||||
size_t max_headers = *num_headers;
|
||||
int r;
|
||||
|
||||
*minor_version = -1;
|
||||
*status = 0;
|
||||
*msg = NULL;
|
||||
*msg_len = 0;
|
||||
*num_headers = 0;
|
||||
|
||||
/* if last_len != 0, check if the response is complete (a fast countermeasure
|
||||
against slowloris */
|
||||
if (last_len != 0 && is_complete(buf, buf_end, last_len, &r) == NULL) {
|
||||
return r;
|
||||
}
|
||||
|
||||
if ((buf = parse_response(buf, buf_end, minor_version, status, msg, msg_len, headers, num_headers, max_headers, &r)) == NULL) {
|
||||
return r;
|
||||
}
|
||||
|
||||
return (int)(buf - buf_start);
|
||||
}
|
||||
|
||||
int phr_parse_headers(const char *buf_start, size_t len, struct phr_header *headers, size_t *num_headers, size_t last_len)
|
||||
{
|
||||
const char *buf = buf_start, *buf_end = buf + len;
|
||||
size_t max_headers = *num_headers;
|
||||
int r;
|
||||
|
||||
*num_headers = 0;
|
||||
|
||||
/* if last_len != 0, check if the response is complete (a fast countermeasure
|
||||
against slowloris */
|
||||
if (last_len != 0 && is_complete(buf, buf_end, last_len, &r) == NULL) {
|
||||
return r;
|
||||
}
|
||||
|
||||
if ((buf = parse_headers(buf, buf_end, headers, num_headers, max_headers, &r)) == NULL) {
|
||||
return r;
|
||||
}
|
||||
|
||||
return (int)(buf - buf_start);
|
||||
}
|
||||
|
||||
enum {
|
||||
CHUNKED_IN_CHUNK_SIZE,
|
||||
CHUNKED_IN_CHUNK_EXT,
|
||||
CHUNKED_IN_CHUNK_DATA,
|
||||
CHUNKED_IN_CHUNK_CRLF,
|
||||
CHUNKED_IN_TRAILERS_LINE_HEAD,
|
||||
CHUNKED_IN_TRAILERS_LINE_MIDDLE
|
||||
};
|
||||
|
||||
static int decode_hex(int ch)
|
||||
{
|
||||
if ('0' <= ch && ch <= '9') {
|
||||
return ch - '0';
|
||||
} else if ('A' <= ch && ch <= 'F') {
|
||||
return ch - 'A' + 0xa;
|
||||
} else if ('a' <= ch && ch <= 'f') {
|
||||
return ch - 'a' + 0xa;
|
||||
} else {
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
ssize_t phr_decode_chunked(struct phr_chunked_decoder *decoder, char *buf, size_t *_bufsz)
|
||||
{
|
||||
size_t dst = 0, src = 0, bufsz = *_bufsz;
|
||||
ssize_t ret = -2; /* incomplete */
|
||||
|
||||
while (1) {
|
||||
switch (decoder->_state) {
|
||||
case CHUNKED_IN_CHUNK_SIZE:
|
||||
for (;; ++src) {
|
||||
int v;
|
||||
if (src == bufsz)
|
||||
goto Exit;
|
||||
if ((v = decode_hex(buf[src])) == -1) {
|
||||
if (decoder->_hex_count == 0) {
|
||||
ret = -1;
|
||||
goto Exit;
|
||||
}
|
||||
break;
|
||||
}
|
||||
if (decoder->_hex_count == sizeof(size_t) * 2) {
|
||||
ret = -1;
|
||||
goto Exit;
|
||||
}
|
||||
decoder->bytes_left_in_chunk = decoder->bytes_left_in_chunk * 16 + v;
|
||||
++decoder->_hex_count;
|
||||
}
|
||||
decoder->_hex_count = 0;
|
||||
decoder->_state = CHUNKED_IN_CHUNK_EXT;
|
||||
/* fallthru */
|
||||
case CHUNKED_IN_CHUNK_EXT:
|
||||
/* RFC 7230 A.2 "Line folding in chunk extensions is disallowed" */
|
||||
for (;; ++src) {
|
||||
if (src == bufsz)
|
||||
goto Exit;
|
||||
if (buf[src] == '\012')
|
||||
break;
|
||||
}
|
||||
++src;
|
||||
if (decoder->bytes_left_in_chunk == 0) {
|
||||
if (decoder->consume_trailer) {
|
||||
decoder->_state = CHUNKED_IN_TRAILERS_LINE_HEAD;
|
||||
break;
|
||||
} else {
|
||||
goto Complete;
|
||||
}
|
||||
}
|
||||
decoder->_state = CHUNKED_IN_CHUNK_DATA;
|
||||
/* fallthru */
|
||||
case CHUNKED_IN_CHUNK_DATA: {
|
||||
size_t avail = bufsz - src;
|
||||
if (avail < decoder->bytes_left_in_chunk) {
|
||||
if (dst != src)
|
||||
memmove(buf + dst, buf + src, avail);
|
||||
src += avail;
|
||||
dst += avail;
|
||||
decoder->bytes_left_in_chunk -= avail;
|
||||
goto Exit;
|
||||
}
|
||||
if (dst != src)
|
||||
memmove(buf + dst, buf + src, decoder->bytes_left_in_chunk);
|
||||
src += decoder->bytes_left_in_chunk;
|
||||
dst += decoder->bytes_left_in_chunk;
|
||||
decoder->bytes_left_in_chunk = 0;
|
||||
decoder->_state = CHUNKED_IN_CHUNK_CRLF;
|
||||
}
|
||||
/* fallthru */
|
||||
case CHUNKED_IN_CHUNK_CRLF:
|
||||
for (;; ++src) {
|
||||
if (src == bufsz)
|
||||
goto Exit;
|
||||
if (buf[src] != '\015')
|
||||
break;
|
||||
}
|
||||
if (buf[src] != '\012') {
|
||||
ret = -1;
|
||||
goto Exit;
|
||||
}
|
||||
++src;
|
||||
decoder->_state = CHUNKED_IN_CHUNK_SIZE;
|
||||
break;
|
||||
case CHUNKED_IN_TRAILERS_LINE_HEAD:
|
||||
for (;; ++src) {
|
||||
if (src == bufsz)
|
||||
goto Exit;
|
||||
if (buf[src] != '\015')
|
||||
break;
|
||||
}
|
||||
if (buf[src++] == '\012')
|
||||
goto Complete;
|
||||
decoder->_state = CHUNKED_IN_TRAILERS_LINE_MIDDLE;
|
||||
/* fallthru */
|
||||
case CHUNKED_IN_TRAILERS_LINE_MIDDLE:
|
||||
for (;; ++src) {
|
||||
if (src == bufsz)
|
||||
goto Exit;
|
||||
if (buf[src] == '\012')
|
||||
break;
|
||||
}
|
||||
++src;
|
||||
decoder->_state = CHUNKED_IN_TRAILERS_LINE_HEAD;
|
||||
break;
|
||||
default:
|
||||
assert(!"decoder is corrupt");
|
||||
}
|
||||
}
|
||||
|
||||
Complete:
|
||||
ret = bufsz - src;
|
||||
Exit:
|
||||
if (dst != src)
|
||||
memmove(buf + dst, buf + src, bufsz - src);
|
||||
*_bufsz = dst;
|
||||
return ret;
|
||||
}
|
||||
|
||||
int phr_decode_chunked_is_in_data(struct phr_chunked_decoder *decoder)
|
||||
{
|
||||
return decoder->_state == CHUNKED_IN_CHUNK_DATA;
|
||||
}
|
||||
|
||||
#undef CHECK_EOF
|
||||
#undef EXPECT_CHAR
|
||||
#undef ADVANCE_TOKEN
|
Loading…
Reference in New Issue