Initial commit for version 2

1 files changed, 0 insertions, 263 deletions

diff --git a/uhttp.c b/uhttp.c
deleted file mode 100644
index 1d7e190..0000000
--- a/uhttp.c
+++ /dev/null
@@ -1,263 +0,0 @@
-/*
- * Copyright (C) 2021 Mikhail Burakov. This file is part of MQhTTp.
- *
- * MQhTTp is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * MQhTTp is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with MQhTTp.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include "uhttp.h"
-
-#include <ctype.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-
-struct Uhttp {
-  struct {
-    char* data;
-    size_t alloc;
-    size_t size;
-  } buffer;
-  struct {
-    const char* method;
-    const char* target;
-    const char* body;
-    size_t body_size;
-  } public;
-  struct {
-    _Bool (*state)(struct Uhttp*, char*);
-    const char* field_name;
-    const char* field_value;
-    char* maybe_ows;
-    _Bool maybe_eol;
-  } parser;
-};
-
-static _Bool StrEq(const char* a, const char* b) {
-  for (; *a && *b; a++, b++) {
-    if (tolower(*a) != tolower(*b)) return 0;
-  }
-  return *a == *b;
-}
-
-static _Bool UhttpOnMethod(struct Uhttp* uhttp, char* glyph);
-static _Bool UhttpOnTarget(struct Uhttp* uhttp, char* glyph);
-static _Bool UhttpOnVersion(struct Uhttp* uhttp, char* glyph);
-static _Bool UhttpOnFieldName(struct Uhttp* uhttp, char* glyph);
-static _Bool UhttpOnFieldValue(struct Uhttp* uhttp, char* glyph);
-static _Bool UhttpOnBody(struct Uhttp* uhttp, char* glyph);
-static _Bool UhttpOnStopped(struct Uhttp* uhttp, char* glyph);
-
-static _Bool UhttpOnMethod(struct Uhttp* uhttp, char* glyph) {
-  switch (*glyph) {
-    case ' ':
-      if (!uhttp->public.method) return 0;
-      uhttp->parser.state = UhttpOnTarget;
-      *glyph = 0;
-      return 1;
-    default:
-      if (!isgraph(*glyph)) return 0;
-      if (!uhttp->public.method) uhttp->public.method = glyph;
-      return 1;
-  }
-}
-
-static _Bool UhttpOnTarget(struct Uhttp* uhttp, char* glyph) {
-  switch (*glyph) {
-    case ' ':
-      if (!uhttp->public.target) return 0;
-      uhttp->parser.state = UhttpOnVersion;
-      *glyph = 0;
-      return 1;
-    default:
-      if (!isgraph(*glyph)) return 0;
-      if (!uhttp->public.target) uhttp->public.target = glyph;
-      return 1;
-  }
-}
-
-static _Bool UhttpOnVersion(struct Uhttp* uhttp, char* glyph) {
-  switch (*glyph) {
-    case '\r':
-      if (uhttp->parser.maybe_eol) return 0;
-      uhttp->parser.maybe_eol = 1;
-      return 1;
-    case '\n':
-      if (!uhttp->parser.maybe_eol) return 0;
-      uhttp->parser.state = UhttpOnFieldName;
-      uhttp->parser.maybe_eol = 0;
-      return 1;
-    default:
-      if (uhttp->parser.maybe_eol) return 0;
-      if (!isprint(*glyph)) return 0;
-      return 1;
-  }
-}
-
-static _Bool UhttpOnFieldName(struct Uhttp* uhttp, char* glyph) {
-  switch (*glyph) {
-    case '\r':
-      if (uhttp->parser.maybe_eol) return 0;
-      uhttp->parser.maybe_eol = 1;
-      return 1;
-    case '\n':
-      if (!uhttp->parser.maybe_eol) return 0;
-      uhttp->parser.state =
-          uhttp->public.body_size ? UhttpOnBody : UhttpOnStopped;
-      return 1;
-    case ' ':
-      return 0;
-    case ':':
-      if (uhttp->parser.maybe_eol) return 0;
-      if (!uhttp->parser.field_name) return 0;
-      uhttp->parser.state = UhttpOnFieldValue;
-      uhttp->parser.field_value = NULL;
-      *glyph = 0;
-      return 1;
-    default:
-      if (uhttp->parser.maybe_eol) return 0;
-      if (!isgraph(*glyph)) return 0;
-      if (!uhttp->parser.field_name) uhttp->parser.field_name = glyph;
-      return 1;
-  }
-}
-
-static _Bool UhttpOnFieldValue(struct Uhttp* uhttp, char* glyph) {
-  switch (*glyph) {
-    case '\r':
-      if (uhttp->parser.maybe_eol) return 0;
-      uhttp->parser.maybe_ows = glyph;
-      uhttp->parser.maybe_eol = 1;
-      return 1;
-    case '\n':
-      if (!uhttp->parser.maybe_eol) return 0;
-      if (!uhttp->parser.field_value) return 0;
-      *uhttp->parser.maybe_ows = 0;
-      if (!uhttp->public.body_size &&
-          StrEq(uhttp->parser.field_name, "Content-Length"))
-        uhttp->public.body_size = (size_t)atoi(uhttp->parser.field_value);
-      uhttp->parser.state = UhttpOnFieldName;
-      uhttp->parser.field_name = NULL;
-      uhttp->parser.maybe_eol = 0;
-      return 1;
-    case '\t':
-    case ' ':
-      if (uhttp->parser.maybe_eol) return 0;
-      if (!uhttp->parser.field_value) return 1;
-      if (!uhttp->parser.maybe_ows) uhttp->parser.maybe_ows = glyph;
-      return 1;
-    default:
-      if (uhttp->parser.maybe_eol) return 0;
-      if (!isgraph(*glyph)) return 0;
-      if (!uhttp->parser.field_value) uhttp->parser.field_value = glyph;
-      uhttp->parser.maybe_ows = NULL;
-      return 1;
-  }
-}
-
-static _Bool UhttpOnBody(struct Uhttp* uhttp, char* glyph) {
-  if (!uhttp->public.body) uhttp->public.body = glyph;
-  ptrdiff_t body_size = glyph - uhttp->public.body + 1;
-  if ((size_t)body_size == uhttp->public.body_size)
-    uhttp->parser.state = UhttpOnStopped;
-  return 1;
-}
-
-static _Bool UhttpOnStopped(struct Uhttp* uhttp, char* glyph) {
-  (void)uhttp;
-  (void)glyph;
-  return 0;
-}
-
-static void UhttpRelocateBuffer(struct Uhttp* uhttp, char* data) {
-  if (uhttp->public.method)
-    uhttp->public.method = data + (uhttp->public.method - uhttp->buffer.data);
-  if (uhttp->public.target)
-    uhttp->public.target = data + (uhttp->public.target - uhttp->buffer.data);
-  if (uhttp->public.body)
-    uhttp->public.body = data + (uhttp->public.body - uhttp->buffer.data);
-  if (uhttp->parser.field_name) {
-    uhttp->parser.field_name =
-        data + (uhttp->parser.field_name - uhttp->buffer.data);
-  }
-  if (uhttp->parser.field_value) {
-    uhttp->parser.field_value =
-        data + (uhttp->parser.field_value - uhttp->buffer.data);
-  }
-  if (uhttp->parser.maybe_ows) {
-    uhttp->parser.maybe_ows =
-        data + (uhttp->parser.maybe_ows - uhttp->buffer.data);
-  }
-  uhttp->buffer.data = data;
-}
-
-struct Uhttp* UhttpCreate() {
-  struct Uhttp* result = calloc(1, sizeof(struct Uhttp));
-  UhttpReset(result);
-  return result;
-}
-
-void UhttpDestroy(struct Uhttp* uhttp) {
-  free(uhttp->buffer.data);
-  free(uhttp);
-}
-
-void UhttpReset(struct Uhttp* uhttp) {
-  const struct Uhttp reset = {.buffer.data = uhttp->buffer.data,
-                              .buffer.alloc = uhttp->buffer.alloc,
-                              .parser.state = UhttpOnMethod};
-  *uhttp = reset;
-}
-
-void* UhttpAllocate(struct Uhttp* uhttp, size_t size) {
-  size_t alloc = uhttp->buffer.size + size;
-  if (alloc > uhttp->buffer.alloc) {
-    char* data = realloc(uhttp->buffer.data, alloc);
-    if (!data) return NULL;
-    if (data != uhttp->buffer.data) UhttpRelocateBuffer(uhttp, data);
-    uhttp->buffer.alloc = alloc;
-  }
-  return uhttp->buffer.data + uhttp->buffer.size;
-}
-
-enum UhttpResult UhttpConsume(struct Uhttp* uhttp, size_t size) {
-  if (uhttp->buffer.size + size > uhttp->buffer.alloc)
-    return kUhttpResultTerminate;
-  size_t end = uhttp->buffer.size + size;
-  for (; uhttp->buffer.size < end; uhttp->buffer.size++) {
-    if (!uhttp->parser.state(uhttp, &uhttp->buffer.data[uhttp->buffer.size])) {
-      uhttp->parser.state = UhttpOnStopped;
-      return kUhttpResultFailure;
-    }
-    if (uhttp->parser.state == UhttpOnStopped) {
-      return kUhttpResultFinished;
-    }
-  }
-  return kUhttpResultWantMore;
-}
-
-const char* UhttpGetMethod(const struct Uhttp* uhttp) {
-  return uhttp->public.method;
-}
-
-const char* UhttpGetTarget(const struct Uhttp* uhttp) {
-  return uhttp->public.target;
-}
-
-const char* UhttpGetBody(const struct Uhttp* uhttp) {
-  return uhttp->public.body;
-}
-
-size_t UhttpGetBodySize(const struct Uhttp* uhttp) {
-  return uhttp->public.body_size;
-}