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/*
*
* Copyright (c) 2016, Masatake YAMATO
* Copyright (c) 2016, Red Hat, K.K.
* Copyright (c) 2022, Vasily Kulikov
*
* This source code is released for free distribution under the terms of the
* GNU General Public License version 2 or (at your option) any later version.
*
* Documentation on the schemas:
* https://github.com/OAI/OpenAPI-Specification/tree/main/versions
*/
#include "general.h" /* must always come first */
#include "debug.h"
#include "entry.h"
#include "kind.h"
#include "yaml.h"
#include "parse.h"
#include "subparser.h"
#include "keyword.h"
#include "read.h"
#include "trace.h"
typedef enum {
KIND_SCHEMA,
KIND_PATH,
KIND_RESPONSE,
KIND_PARAMETER,
KIND_TITLE,
KIND_SERVER,
KIND_TAG,
} openapiKind;
static kindDefinition OpenAPIKinds [] = {
{ true, 'd', "schema", "schemas" },
{ true, 'p', "path", "paths" },
{ true, 'R', "response", "responses" },
{ true, 'P', "parameter", "parameters" },
{ true, 't', "title", "titles" },
{ true, 's', "server", "servers (or hosts in swagger)" },
{ true, 'T', "tag", "tags"},
};
/* - name: "THE NAME" */
enum openapiDetectingState {
DSTAT_LAST_KEY,
DSTAT_LAST_VALUE,
DSTAT_INITIAL,
};
struct sOpenAPISubparser {
yamlSubparser yaml;
enum openapiDetectingState detection_state;
};
static tagYpathTable ypathTables [] = {
{ "paths/*",
DSTAT_LAST_KEY, KIND_PATH, },
{ "components/responses/*",
DSTAT_LAST_KEY, KIND_RESPONSE, },
{ "responses/*",
DSTAT_LAST_KEY, KIND_RESPONSE, },
{ "components/parameters/*",
DSTAT_LAST_KEY, KIND_PARAMETER, },
{ "parameters/*",
DSTAT_LAST_KEY, KIND_PARAMETER, },
{ "components/schemas/*",
DSTAT_LAST_KEY, KIND_SCHEMA, },
{ "definitions/*",
DSTAT_LAST_KEY, KIND_SCHEMA, },
{ "info/title",
DSTAT_LAST_VALUE, KIND_TITLE, },
{ "servers/*/url",
DSTAT_LAST_VALUE, KIND_SERVER, },
{ "host",
DSTAT_LAST_VALUE, KIND_SERVER, },
{ "tags/*/name",
DSTAT_LAST_VALUE, KIND_TAG, },
};
static void openapiStateMachine (struct sOpenAPISubparser *openapi,
yaml_token_t *token)
{
#ifdef DO_TRACING
ypathPrintTypeStack (YAML(openapi));
#endif
switch (token->type)
{
case YAML_KEY_TOKEN:
openapi->detection_state = DSTAT_LAST_KEY;
break;
case YAML_SCALAR_TOKEN:
switch (openapi->detection_state)
{
case DSTAT_LAST_KEY:
ypathFillKeywordOfTokenMaybe (YAML(openapi), token, getInputLanguage ());
/* FALL THROUGH */
case DSTAT_LAST_VALUE:
TRACE_PRINT("token-callback: %s: %s",
(openapi->detection_state == DSTAT_LAST_KEY)? "key": "value",
(char*)token->data.scalar.value);
ypathHandleToken (YAML(openapi), token, openapi->detection_state,
ypathTables, ARRAY_SIZE (ypathTables));
break;
default:
break;
}
openapi->detection_state = DSTAT_INITIAL;
break;
case YAML_VALUE_TOKEN:
openapi->detection_state = DSTAT_LAST_VALUE;
break;
default:
openapi->detection_state = DSTAT_INITIAL;
break;
}
}
static void newTokenCallback (yamlSubparser *s, yaml_token_t *token)
{
if (token->type == YAML_BLOCK_SEQUENCE_START_TOKEN
|| token->type == YAML_BLOCK_MAPPING_START_TOKEN)
ypathPushType (s, token);
openapiStateMachine ((struct sOpenAPISubparser *)s, token);
if (token->type == YAML_BLOCK_END_TOKEN)
ypathPopType (s);
else if (token->type == YAML_STREAM_END_TOKEN)
ypathPopAllTypes (s);
}
static void inputStart(subparser *s)
{
((struct sOpenAPISubparser*)s)->detection_state = DSTAT_INITIAL;
}
static void inputEnd(subparser *s)
{
Assert (((yamlSubparser*)s)->ypathTypeStack == NULL);
}
static void findOpenAPITags (void)
{
scheduleRunningBaseparser (0);
}
static void initialize (langType language)
{
ypathCompileTables (language, ypathTables, ARRAY_SIZE (ypathTables), 0);
}
static void finalize (langType language, bool initialized)
{
if (initialized)
ypathCompiledCodeDelete (ypathTables, ARRAY_SIZE (ypathTables));
}
extern parserDefinition* OpenAPIParser (void)
{
static const char *const patterns [] = { "openapi.yaml", NULL };
static struct sOpenAPISubparser openapiSubparser = {
.yaml = {
.subparser = {
.direction = SUBPARSER_BI_DIRECTION,
.inputStart = inputStart,
.inputEnd = inputEnd,
},
.newTokenNotfify = newTokenCallback
},
};
static parserDependency dependencies [] = {
{ DEPTYPE_SUBPARSER, "Yaml", &openapiSubparser },
};
parserDefinition* const def = parserNew ("OpenAPI");
def->patterns = patterns;
def->dependencies = dependencies;
def->dependencyCount = ARRAY_SIZE (dependencies);
def->kindTable = OpenAPIKinds;
def->kindCount = ARRAY_SIZE (OpenAPIKinds);
def->parser = findOpenAPITags;
def->initialize = initialize;
def->finalize = finalize;
return def;
}
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