Classroom Ownership Rescue

Rescue.js

/* Google Apps Script */
/* This code fixes ownership for every file in a google classroom */
/* Assumes that ownership has accidentally been transferred to the script user
   (i.e. through moving a folder through a Shared Drive and back out)
   */

function rescueHosedClass (courseId) {
  let course = Classroom.Courses.get(courseId);
  let owner = Classroom.UserProfiles.get(course.ownerId).emailAddress;
  rescueHosedMaterials(courseId, owner);
  rescueAllHosedSubmissions(courseId, owner);
}

function rescueAllHosedSubmissions (courseId, teacher) {
  let response = {};
  do {
    response = Classroom.Courses.CourseWork.list(courseId, {nextPageToken:response.nextPageToken});
    response.courseWork.forEach(
      (cwItem)=>{
        rescueHosedSubmissions(courseId,cwItem.id,teacher);
      }
    )
  } while (response.nextPageToken)
}

function rescueHosedSubmissions (courseId, courseWorkId, teacher) {
  let response = {}
  do {
     response = Classroom.Courses.CourseWork.StudentSubmissions.list(courseId,courseWorkId,{nextPageToken:response.nextPageToken});
     response.studentSubmissions.forEach(
       (submission)=>{
        if (submission?.assignmentSubmission?.attachments) {
          let studentProfile = Classroom.UserProfiles.get(submission.userId);
          let student = studentProfile.emailAddress;
          submission.assignmentSubmission.attachments.forEach(
            (a)=>{
              if (a.driveFile) {
                console.log('Got drive attachment',a.driveFile,submission.state);
                console.log('User is',student);
                let f;
                try {
                  f = DriveApp.getFileById(a.driveFile.id)
                } catch (err) {
                  console.log('We cannot access file -- probably a good sign')
                }
                if (f) {
                  let owner = f.getOwner().getEmail();
                  console.log('OWNED BY',owner);
                  if (owner != student && owner != teacher) {
                    console.log("WEIRD: WHY IS THIS OWNED BY",owner)
                    if (submission.state=='CREATED' || submission.state=='RETURNED') {
                      console.log('TRANSFER OWNERSHIP TO STUDENT',student)
                      f.setOwner(student);
                    } else if (submission.state=='TURNED_IN'||submission.state=='RESUBMITTED') {
                      console.log('TRANSFER OWNERSHIP TO TEACHER')
                      f.setOwner(teacher);
                    } else {
                      console.log('What do I do with state:',submission.state)
                    }
                  }   
                } // end if file          
              } // end if driveFile
            }
          ); // end each attachment
        } // end if attachments
       
       }
       ) // end each submission;
  } while (response.nextPageToken);

}

function rescueHosedMaterials (courseId, owner) {
  let materials = {}
  do {
    materials = Classroom.Courses.CourseWorkMaterials.list(courseId, {nextPageToken:materials.nextPageToken});
    materials.courseWorkMaterial.
      forEach(
      (m,i)=>{
        if (m.materials) {
          m.materials.forEach(
            (mm,ii)=>{
              if (mm.driveFile) {
                console.log(i,ii,mm.driveFile.shareMode,mm.driveFile.driveFile.id);
                try {
                  let orig = DriveApp.getFileById(mm.driveFile.driveFile.id);
                  let fileOwner = orig.getOwner().getEmail();
                  //console.log('Owned by:',JSON.stringify(fileOwner));
                  //console.log('Eds:',JSON.stringify(orig.getEditors().map((u)=>u.getEmail())));
                  if (fileOwner != owner) {
                    console.log('Ownership mismatch! Fix it!')
                    if (fileOwner == 'me') { // replace me with your own email
                      console.log('Cool I own it')                   
                      console.log('Set owner to...',owner);
                      orig.setOwner(owner);
                    } else {
                      console.log('Weird I cannot fix it.');
                      console.log('Owned by ',fileOwner,'not',owner)
                    }
                  }
                } catch (err) {
                  console.log('No access');
                }
              }
            }
          )
        }        
      }
    )
  } while (materials.nextPageToken);
}