X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=server%2Ffastcgi.h;h=8678a775908c4c07f2ef02496d0d14727617f377;hb=5d57467589ecefdf5bb5985005705a1c8460c623;hp=bac816abb227e9d3275844de7742ec3f98c72238;hpb=075b45a5a7c8bb6262521cd66900c9851e633743;p=matches%2FMCTX3420.git diff --git a/server/fastcgi.h b/server/fastcgi.h index bac816a..8678a77 100644 --- a/server/fastcgi.h +++ b/server/fastcgi.h @@ -1,36 +1,82 @@ /** * @file fastcgi.h - * @purpose Headers for the fastcgi web interface + * @brief Headers for the fastcgi web interface */ #ifndef _FASTCGI_H #define _FASTCGI_H -/**(HTTP) Status codes that fcgi module handlers can return**/ +/** + * Status codes that fcgi module handlers can return + * Success status codes have values > 0 + * Failure status codes have values <(=) 0 + * Note: 0 is counted as an error code to minimise confusion + * with in-browser JSON parsing error codes + */ typedef enum StatusCodes { - STATUS_OK = 200, - STATUS_ERROR = 400, - STATUS_UNAUTHORIZED = 401 + STATUS_OK = 1, + STATUS_ERROR = -1, + STATUS_UNAUTHORIZED = -2, + STATUS_NOTRUNNING = -3, + STATUS_ALREADYEXISTS = -4 } StatusCodes; +#define FCGI_PARAM_REQUIRED (1 << 0) +#define FCGI_PARAM_RECEIVED (1 << 1) +#define FCGI_BOOL_T (1 << 2) +#define FCGI_INT_T (1 << 3) +#define FCGI_LONG_T (1 << 4) +#define FCGI_DOUBLE_T (1 << 5) +#define FCGI_STRING_T (1 << 6) +#define FCGI_REQUIRED(x) ((x) | FCGI_PARAM_REQUIRED) +#define FCGI_IS_REQUIRED(x) ((x) & FCGI_PARAM_REQUIRED) +#define FCGI_RECEIVED(x) ((x) & FCGI_PARAM_RECEIVED) +#define FCGI_TYPE(x) ((x) & ~(FCGI_PARAM_REQUIRED | FCGI_PARAM_RECEIVED)) + +typedef struct FCGIValue { + const char *key; + void *value; + unsigned flags; +} FCGIValue; + typedef struct FCGIContext FCGIContext; typedef void (*ModuleHandler) (FCGIContext *context, char *params); -extern void FCGI_BeginControl(FCGIContext *context, bool force); -extern void FCGI_EndControl(FCGIContext *context); +extern void FCGI_LockControl(FCGIContext *context, bool force); +extern void FCGI_ReleaseControl(FCGIContext *context); extern bool FCGI_HasControl(FCGIContext *context, const char *key); extern char *FCGI_KeyPair(char *in, const char **key, const char **value); +extern bool FCGI_ParseRequest(FCGIContext *context, char *params, FCGIValue values[], size_t count); extern void FCGI_BeginJSON(FCGIContext *context, StatusCodes status_code); extern void FCGI_JSONPair(const char *key, const char *value); extern void FCGI_JSONLong(const char *key, long value); extern void FCGI_JSONDouble(const char *key, double value); extern void FCGI_JSONBool(const char *key, bool value); extern void FCGI_JSONKey(const char *key); -extern void FCGI_JSONValue(const char *format, ...); +extern void FCGI_PrintRaw(const char *format, ...); extern void FCGI_EndJSON(); -extern void FCGI_RejectJSON(FCGIContext *context); extern void FCGI_RejectJSONEx(FCGIContext *context, StatusCodes status, const char *description); -extern void * FCGI_RequestLoop (void *data); +extern char *FCGI_EscapeText(char *buf); +extern void *FCGI_RequestLoop (void *data); + +extern void FCGI_WriteBinary(void * data, size_t size, size_t num_elem); + +/** + * Shortcut to calling FCGI_RejectJSONEx. Sets the error code + * to STATUS_ERROR. + * @param context The context to work in + * @param description A short description of why the request was rejected. + * @see FCGI_RejectJSONEx + */ +#define FCGI_RejectJSON(context, description) FCGI_RejectJSONEx(context, STATUS_ERROR, description) + +/** + * Custom formatting function for the JSON value. To be used in + * conjunction with FCGI_JSONKey. Care should be taken to ensure + * that valid JSON is produced. + * @see FCGI_PrintRaw for calling syntax + */ +#define FCGI_JSONValue FCGI_PrintRaw #endif