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Showing content from http://www.ncbi.nlm.nih.gov/IEB/ToolBox/CPP_DOC/doxyhtml/ncfetch_8cpp_source.html below:

NCBI C++ ToolKit: src/app/grid/util/ncfetch.cpp Source File

51 #define GRID_APP_NAME "ncfetch.cgi" 55 #define NETSTORAGE_IO_BUFFER_SIZE (64 * 1024) 73  return "mode=direct"

;

86  string

fmt = request.

GetEntry

(

"fmt"

, &is_found);

87  if

(fmt.empty() || !is_found)

90  string

filename(request.

GetEntry

(

"filename"

, &is_found));

91  if

(is_found && !filename.empty()) {

92  string

is_inline(request.

GetEntry

(

"inline"

, &is_found));

96  "inline; filename="

:

"attachment; filename="

) +

111  string key

= request.

GetEntry

(

"key"

, &is_found);

112  if

(

key

.empty() || !is_found) {

120  size_t

total_bytes_written = 0;

122  while

(!netstorage_object.

Eof

()) {

125  if

(!bytes_read)

continue

;

128

reply.

out

().write(

buffer

, bytes_read);

129

total_bytes_written += bytes_read;

132

netstorage_object.

Close

();

135  LOG_POST

(

Info

<<

"retrieved data: "

<< total_bytes_written <<

" bytes"

);

145  if

(

auto

arg_exception =

dynamic_cast<CArgException

*

>

(&e)) {

146

status_str =

"400 Bad Request"

;

147

message = arg_exception->GetMsg();

150  switch

(nc_exception->GetErrCode()) {

152

status_str =

"403 Forbidden"

;

153

message = nc_exception->GetMsg();

157

status_str =

"404 Not Found"

;

158

message = nc_exception->GetMsg();

174

os <<

"Status: "

<< status_str <<

HTTP_EOL

<<

181  ERR_POST

(

"CNetCacheBlobFetchApp::OnException() " 182  "failed to send error page back to the client"

);

186  catch

(exception& ex) {

193 int main

(

int

argc,

const char

* argv[])

201  return

app.

AppMain

(argc, argv);

Exception classes used by the NCBI CGI framework.

Pool of recycled CCompoundID objects.

NetCache BLOB/image fetch application.

virtual int OnException(std::exception &e, CNcbiOstream &os)

This method is called if an exception is thrown during the processing of HTTP request.

string x_GetInitString(const string &key)

virtual int ProcessRequest(CCgiContext &ctx)

This is the method you should override.

Exception class for use by CNetStorage, CNetStorageByKey, and CNetStorageObject.

Basic network-based data object I/O.

Abstract reader-writer interface classes.

#define GRID_APP_CHECK_VERSION_ARGS()

const CNcbiRegistry & GetConfig(void) const

Get the application's cached configuration parameters (read-only).

int AppMain(int argc, const char *const *argv, const char *const *envp=0, EAppDiagStream diag=eDS_Default, const char *conf=NcbiEmptyCStr, const string &name=NcbiEmptyString)

Main function (entry point) for the NCBI application.

virtual int OnException(std::exception &e, CNcbiOstream &os)

This method is called if an exception is thrown during the processing of HTTP request.

void SetHTTPStatus(unsigned int status, const string &reason=kEmptyStr)

Set HTTP status code in the current request context and in the current CHttpResponse if one exists.

void SetHeaderValue(const string &name, const string &value)

CNcbiOstream & out(void) const

Get output stream. Throw exception if GetOutput() is NULL.

void SetContentType(const string &type)

Set content type (text/html by default if not provided)

CNcbiOstream & WriteHeader(void) const

Write HTTP response header to the output stream.

const CCgiEntry & GetEntry(const string &name, bool *is_found=0) const

Get entry value by name.

CDiagContext & GetDiagContext(void)

Get diag context instance.

void SetSplitLogFile(bool value=true)

Split log files flag.

#define ERR_POST(message)

Error posting with file, line number information but without error codes.

static void SetOldPostFormat(bool value)

Set old/new format flag.

#define LOG_POST(message)

This macro is deprecated and it's strongly recomended to move in all projects (except tests) to macro...

#define NCBI_THROW(exception_class, err_code, message)

Generic macro to throw an exception, given the exception class, error code and message string.

#define NCBI_REPORT_EXCEPTION(title, ex)

Generate a report on the exception.

void Info(CExceptionArgs_Base &args)

bool Eof(void)

Check if the last Read() has hit EOF.

size_t Read(void *buffer, size_t buf_size)

Read no more than 'buf_size' bytes of the object contents (starting at the current position)

void Close(void)

Finalize and close the current object stream.

CNetStorageObject Open(const string &object_loc)

Open an existing NetStorage object for reading.

@ eNotExists

Illegal op applied to non-existent object.

@ eAuthError

Authentication error (e.g. no FileTrack API key)

virtual const string & Get(const string &section, const string &name, TFlags flags=0) const

Get the parameter value.

IO_PREFIX::ostream CNcbiOstream

Portable alias for ostream.

static bool StringToBool(const CTempString str)

Convert string to bool.

static string HtmlEncode(const CTempString str, THtmlEncode flags=fHtmlEnc_EncodeAll)

Encode a string for HTML.

const struct ncbi::grid::netcache::search::fields::KEY key

Defines command line argument related classes.

void s_WriteHeader(const CCgiRequest &request, CCgiResponse &reply)

#define NETSTORAGE_IO_BUFFER_SIZE

int main(int argc, const char *argv[])

NetCache API exception declarations.

Reader-writer based streams.


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