Add cancel-job

Author: attah

lib/ippprinter.cpp

@@ -365,7 +365,7 @@ Error IppPrinter::identify()
 
 Error IppPrinter::setAttributes(List<std::pair<std::string, std::string>> attrStrs)
 {
-  Error err;
+  Error error;
   IppAttrs attrs;
   for(const auto& [name, value] : attrStrs)
   {
@@ -384,8 +384,8 @@ Error IppPrinter::setAttributes(List<std::pair<std::string, std::string>> attrSt
   }
   IppMsg req = _mkMsg(IppMsg::SetPrinterAttrs, {}, {}, attrs);
   IppMsg resp;
-  err = _doRequest(req, resp);
-  return err;
+  error = _doRequest(req, resp);
+  return error;
 }
 
 Error IppPrinter::getJobs(List<IppPrinter::JobInfo>& jobInfos)
@@ -408,6 +408,24 @@ Error IppPrinter::getJobs(List<IppPrinter::JobInfo>& jobInfos)
   return error;
 }
 
+Error IppPrinter::cancelJob(int jobId)
+{
+  Error error;
+  IppAttrs cancelJobOpAttrs = {{"job-id", {IppTag::Integer, jobId}}};
+  IppMsg req = _mkMsg(IppMsg::CancelJob, cancelJobOpAttrs);
+  IppMsg resp;
+  error = _doRequest(req, resp);
+  if(error)
+  {
+    return error;
+  }
+  if(resp.getStatus() > 0xff)
+  {
+    error = resp.getOpAttrs().get<std::string>("status-message", "unknown");
+  }
+  return error;
+}
+
 Error IppPrinter::_doRequest(IppMsg::Operation op, IppMsg& resp)
 {
   IppMsg req = _mkMsg(op);

lib/ippprinter.h

@@ -82,6 +82,7 @@ class IppPrinter
   Error identify();
   Error setAttributes(List<std::pair<std::string, std::string>> attrStrs);
   Error getJobs(List<JobInfo>& jobInfos);
+  Error cancelJob(int jobId);
 
 private:
   Error _doRequest(IppMsg::Operation op, IppMsg& resp);

utils/ippclient.cpp

@@ -181,6 +181,8 @@ int main(int argc, char** argv)
 
   bool antiAlias;
 
+  int id;
+
   std::string addr;
   std::string attrs;
   std::string inFile;
@@ -226,6 +228,8 @@ int main(int argc, char** argv)
 
   SwitchArg<bool> antiAliasOpt(antiAlias, {"-aa", "--antaialias"}, "Enable antialiasing in rasterization");
 
+  SwitchArg<int> idOpt(id, {"--id"}, "Id of print job.");
+
   PosArg addrArg(addr, "printer address");
   PosArg attrsArg(attrs, "name=value[,name=value]");
   PosArg pdfArg(inFile, "input file");
@@ -240,6 +244,8 @@ int main(int argc, char** argv)
                                  {&addrArg, &attrsArg}}},
                   {"get-jobs", {{&helpOpt, &verboseOpt},
                                 {&addrArg}}},
+                  {"cancel-job", {{&helpOpt, &verboseOpt, &idOpt},
+                                  {&addrArg}}},
                   {"print", {{&helpOpt, &verboseOpt, &forceOpt, &oneStageOpt,
                               &pagesOpt, &copiesOpt, &collatedCopiesOpt, &paperSizeOpt,
                               &resolutionOpt, &resolutionXOpt, &resolutionYOpt,
@@ -332,11 +338,25 @@ int main(int argc, char** argv)
     error = printer.getJobs(jobInfos);
     if(error)
     {
-      std::cerr << "Get-jobs attributes failed: " << error.value() << std::endl;
+      std::cerr << "Get-jobs failed: " << error.value() << std::endl;
       return 1;
     }
     std::cout << jobInfos;
   }
+  else if(args.subCommand() == "cancel-job")
+  {
+    if(!idOpt.isSet())
+    {
+        std::cerr << "Please specify a job id with --id." << std::endl;
+        return 1;
+    }
+    error = printer.cancelJob(id);
+    if(error)
+    {
+      std::cerr << "Cancel-job failed: " << error.value() << std::endl;
+      return 1;
+    }
+  }
   else if(args.subCommand() == "print")
   {
     IppPrintJob job = printer.createJob();