/************************************************************************
* Function : parse_uri_and_unescape
*
* Parameters :
* char * in ;
* int max ;
* uri_type * out ;
*
* Description : Same as parse_uri, except that all strings are
* unescaped (%XX replaced by chars)
*
* Return : int ;
*
* Note: This modifies 'pathquery' and 'fragment' parts of the input
************************************************************************/
int
parse_uri_and_unescape( char *in,
int max,
uri_type *out )
{
int ret;
if( ( ret = parse_uri( in, max, out ) ) != HTTP_SUCCESS )
return ret;
if( out->pathquery.size > 0 )
remove_escaped_chars( (char *)out->pathquery.buff, &out->pathquery.size );
if( out->fragment.size > 0 )
remove_escaped_chars( (char *)out->fragment.buff, &out->fragment.size );
return HTTP_SUCCESS;
}
int parse_uri_and_unescape(char *in, size_t max, uri_type *out)
{
int ret = parse_uri(in, max, out);
if (ret != HTTP_SUCCESS) {
return ret;
}
if (out->pathquery.size > (size_t)0) {
remove_escaped_chars((char *)out->pathquery.buff, &out->pathquery.size);
}
if (out->fragment.size > (size_t)0) {
remove_escaped_chars((char *)out->fragment.buff, &out->fragment.size);
}
return HTTP_SUCCESS;
}
/*!
* \brief Processes the request and returns the result in the output parameters.
*
* \return
* \li \c HTTP_BAD_REQUEST
* \li \c HTTP_INTERNAL_SERVER_ERROR
* \li \c HTTP_REQUEST_RANGE_NOT_SATISFIABLE
* \li \c HTTP_FORBIDDEN
* \li \c HTTP_NOT_FOUND
* \li \c HTTP_NOT_ACCEPTABLE
* \li \c HTTP_OK
*/
static int process_request(
/*! [in] HTTP Request message. */
http_message_t *req,
/*! [out] Tpye of response. */
enum resp_type *rtype,
/*! [out] Headers. */
membuffer *headers,
/*! [out] Get filename from request document. */
membuffer *filename,
/*! [out] Xml alias document from the request document. */
struct xml_alias_t *alias,
/*! [out] Send Instruction object where the response is set up. */
struct SendInstruction *RespInstr)
{
int code;
int err_code;
char *request_doc;
struct File_Info finfo;
int using_alias;
int using_virtual_dir;
uri_type *url;
const char *temp_str;
int resp_major;
int resp_minor;
int alias_grabbed;
size_t dummy;
const char *extra_headers = NULL;
print_http_headers(req);
url = &req->uri;
assert(req->method == HTTPMETHOD_GET ||
req->method == HTTPMETHOD_HEAD ||
req->method == HTTPMETHOD_POST ||
req->method == HTTPMETHOD_SIMPLEGET);
/* init */
memset(&finfo, 0, sizeof(finfo));
request_doc = NULL;
finfo.content_type = NULL;
alias_grabbed = FALSE;
err_code = HTTP_INTERNAL_SERVER_ERROR; /* default error */
using_virtual_dir = FALSE;
using_alias = FALSE;
http_CalcResponseVersion(req->major_version, req->minor_version,
&resp_major, &resp_minor);
/* */
/* remove dots */
/* */
request_doc = malloc(url->pathquery.size + 1);
if (request_doc == NULL) {
goto error_handler; /* out of mem */
}
memcpy(request_doc, url->pathquery.buff, url->pathquery.size);
request_doc[url->pathquery.size] = '\0';
dummy = url->pathquery.size;
remove_escaped_chars(request_doc, &dummy);
code = remove_dots(request_doc, url->pathquery.size);
if (code != 0) {
err_code = HTTP_FORBIDDEN;
goto error_handler;
}
if (*request_doc != '/') {
/* no slash */
err_code = HTTP_BAD_REQUEST;
goto error_handler;
}
if (isFileInVirtualDir(request_doc)) {
using_virtual_dir = TRUE;
RespInstr->IsVirtualFile = 1;
if (membuffer_assign_str(filename, request_doc) != 0) {
goto error_handler;
}
} else {
/* try using alias */
if (is_valid_alias(&gAliasDoc)) {
alias_grab(alias);
alias_grabbed = TRUE;
using_alias = get_alias(request_doc, alias, &finfo);
if (using_alias == TRUE) {
finfo.content_type =
ixmlCloneDOMString("text/xml");
if (finfo.content_type == NULL) {
goto error_handler;
}
}
}
}
if (using_virtual_dir) {
if (req->method != HTTPMETHOD_POST) {
/* get file info */
if (virtualDirCallback.
get_info(filename->buf, &finfo) != 0) {
err_code = HTTP_NOT_FOUND;
goto error_handler;
}
/* try index.html if req is a dir */
if (finfo.is_directory) {
if (filename->buf[filename->length - 1] == '/') {
temp_str = "index.html";
} else {
temp_str = "/index.html";
}
if (membuffer_append_str(filename, temp_str) !=
0) {
goto error_handler;
}
/* get info */
if ((virtualDirCallback.
get_info(filename->buf,
&finfo) != UPNP_E_SUCCESS)
|| finfo.is_directory) {
err_code = HTTP_NOT_FOUND;
goto error_handler;
}
}
/* not readable */
if (!finfo.is_readable) {
err_code = HTTP_FORBIDDEN;
goto error_handler;
}
/* finally, get content type */
/* if ( get_content_type(filename->buf, &content_type) != 0 ) */
/*{ */
/* goto error_handler; */
/* } */
}
} else if (!using_alias) {
if (gDocumentRootDir.length == 0) {
goto error_handler;
}
/* */
/* get file name */
/* */
/* filename str */
if (membuffer_assign_str(filename, gDocumentRootDir.buf) != 0 ||
membuffer_append_str(filename, request_doc) != 0) {
goto error_handler; /* out of mem */
}
/* remove trailing slashes */
while (filename->length > 0 &&
filename->buf[filename->length - 1] == '/') {
membuffer_delete(filename, filename->length - 1, 1);
}
if (req->method != HTTPMETHOD_POST) {
/* get info on file */
if (get_file_info(filename->buf, &finfo) != 0) {
err_code = HTTP_NOT_FOUND;
goto error_handler;
}
/* try index.html if req is a dir */
if (finfo.is_directory) {
if (filename->buf[filename->length - 1] == '/') {
temp_str = "index.html";
} else {
temp_str = "/index.html";
}
if (membuffer_append_str(filename, temp_str) !=
0) {
goto error_handler;
}
/* get info */
if (get_file_info(filename->buf, &finfo) != 0 ||
finfo.is_directory) {
err_code = HTTP_NOT_FOUND;
goto error_handler;
}
}
/* not readable */
if (!finfo.is_readable) {
err_code = HTTP_FORBIDDEN;
goto error_handler;
}
}
/* finally, get content type */
/* if ( get_content_type(filename->buf, &content_type) != 0 ) */
/* { */
/* goto error_handler; */
/* } */
}
RespInstr->ReadSendSize = finfo.file_length;
/* Check other header field. */
if ((code =
CheckOtherHTTPHeaders(req, RespInstr,
finfo.file_length)) != HTTP_OK) {
err_code = code;
goto error_handler;
}
if (req->method == HTTPMETHOD_POST) {
*rtype = RESP_POST;
err_code = HTTP_OK;
goto error_handler;
}
/*extra_headers = UpnpFileInfo_get_ExtraHeaders(finfo); */
if (!extra_headers) {
extra_headers = "";
}
/* Check if chunked encoding should be used. */
if (using_virtual_dir && finfo.file_length == UPNP_USING_CHUNKED) {
/* Chunked encoding is only supported by HTTP 1.1 clients */
if (resp_major == 1 && resp_minor == 1) {
RespInstr->IsChunkActive = 1;
} else {
/* The virtual callback indicates that we should use
* chunked encoding however the client doesn't support
* it. Return with an internal server error. */
err_code = HTTP_NOT_ACCEPTABLE;
goto error_handler;
}
}
if (RespInstr->IsRangeActive && RespInstr->IsChunkActive) {
/* Content-Range: bytes 222-3333/4000 HTTP_PARTIAL_CONTENT */
/* Transfer-Encoding: chunked */
if (http_MakeMessage(headers, resp_major, resp_minor,
"R" "T" "GKLD" "s" "tcS" "Xc" "sCc",
HTTP_PARTIAL_CONTENT, /* status code */
finfo.content_type, /* content type */
RespInstr, /* range info */
RespInstr, /* language info */
"LAST-MODIFIED: ",
&finfo.last_modified,
X_USER_AGENT, extra_headers) != 0) {
goto error_handler;
}
} else if (RespInstr->IsRangeActive && !RespInstr->IsChunkActive) {
/* Content-Range: bytes 222-3333/4000 HTTP_PARTIAL_CONTENT */
if (http_MakeMessage(headers, resp_major, resp_minor,
"R" "N" "T" "GLD" "s" "tcS" "Xc" "sCc",
HTTP_PARTIAL_CONTENT, /* status code */
RespInstr->ReadSendSize, /* content length */
finfo.content_type, /* content type */
RespInstr, /* range info */
RespInstr, /* language info */
"LAST-MODIFIED: ",
&finfo.last_modified,
X_USER_AGENT, extra_headers) != 0) {
goto error_handler;
}
} else if (!RespInstr->IsRangeActive && RespInstr->IsChunkActive) {
/* Transfer-Encoding: chunked */
if (http_MakeMessage(headers, resp_major, resp_minor,
"RK" "TLD" "s" "tcS" "Xc" "sCc",
HTTP_OK, /* status code */
finfo.content_type, /* content type */
RespInstr, /* language info */
"LAST-MODIFIED: ",
&finfo.last_modified,
X_USER_AGENT, extra_headers) != 0) {
goto error_handler;
}
} else {
/* !RespInstr->IsRangeActive && !RespInstr->IsChunkActive */
if (RespInstr->ReadSendSize >= 0) {
if (http_MakeMessage(headers, resp_major, resp_minor,
"R" "N" "TLD" "s" "tcS" "Xc" "sCc",
HTTP_OK, /* status code */
RespInstr->ReadSendSize, /* content length */
finfo.content_type, /* content type */
RespInstr, /* language info */
"LAST-MODIFIED: ",
&finfo.last_modified,
X_USER_AGENT,
extra_headers) != 0) {
goto error_handler;
}
} else {
if (http_MakeMessage(headers, resp_major, resp_minor,
"R" "TLD" "s" "tcS" "Xc" "sCc",
HTTP_OK, /* status code */
finfo.content_type, /* content type */
RespInstr, /* language info */
"LAST-MODIFIED: ",
&finfo.last_modified,
X_USER_AGENT,
extra_headers) != 0) {
goto error_handler;
}
}
}
if (req->method == HTTPMETHOD_HEAD) {
*rtype = RESP_HEADERS;
} else if (using_alias) {
/* GET xml */
*rtype = RESP_XMLDOC;
} else if (using_virtual_dir) {
*rtype = RESP_WEBDOC;
} else {
/* GET filename */
*rtype = RESP_FILEDOC;
}
/* simple get http 0.9 as specified in http 1.0 */
/* don't send headers */
if (req->method == HTTPMETHOD_SIMPLEGET) {
membuffer_destroy(headers);
}
err_code = HTTP_OK;
error_handler:
free(request_doc);
ixmlFreeDOMString(finfo.content_type);
if (err_code != HTTP_OK && alias_grabbed) {
alias_release(alias);
}
return err_code;
}
