[web] adopt free/premium compile backend class (#34846)

* [web] adopt free/premium compile backend class

* [rails] adopt free compile backend class for pdf conversion

GitOrigin-RevId: e12c99a27363f5654132c2fcdc6c5d8ccc591868

services/web/app/src/Features/Compile/ClsiCacheManager.mjs

@@ -249,7 +249,7 @@ async function createTemplateClsiCache({
   docEntries,
 }) {
   const compileGroup = Settings.defaultFeatures.compileGroup
-  const compileBackendClass = Settings.apis.clsi.submissionBackendClass
+  const compileBackendClass = Settings.apis.clsi.submissionCompileBackendClass
   const submissionId = new ObjectId().toString()
   const editorId = Crypto.randomUUID()
   const historyId = project.overleaf.history.id

services/web/app/src/Features/Compile/ClsiCookieManager.mjs

@@ -34,6 +34,18 @@ const ClsiCookieManagerFactory = function (backendGroup) {
     }
   }
 
+  // TODO: remove this once the old keys have expired after the rollout of the
+  // c3d->free / c4d->premium compile backend class rename.
+  function buildOldKey(projectId, userId, compileBackendClass) {
+    let oldCompileBackendClass = compileBackendClass
+    if (compileBackendClass === 'free') {
+      oldCompileBackendClass = 'c3d'
+    } else if (compileBackendClass === 'premium') {
+      oldCompileBackendClass = 'c4d'
+    }
+    return buildKey(projectId, userId, oldCompileBackendClass)
+  }
+
   async function getServerId(
     projectId,
     userId,
@@ -43,9 +55,16 @@ const ClsiCookieManagerFactory = function (backendGroup) {
     if (!clsiCookiesEnabled) {
       return
     }
-    const serverId = await rclient.get(
+    let serverId = await rclient.get(
       buildKey(projectId, userId, compileBackendClass)
     )
+    if (!serverId) {
+      // Fallback to the old key from before the c3d->free / c4d->premium rename.
+      // TODO: remove this once the old keys have expired.
+      serverId = await rclient.get(
+        buildOldKey(projectId, userId, compileBackendClass)
+      )
+    }
 
     if (!serverId) {
       return await cookieManager.promises._populateServerIdViaRequest(
@@ -215,7 +234,10 @@ const ClsiCookieManagerFactory = function (backendGroup) {
       return
     }
     try {
-      await rclient.del(buildKey(projectId, userId, compileBackendClass))
+      await rclient.del(
+        buildKey(projectId, userId, compileBackendClass),
+        buildOldKey(projectId, userId, compileBackendClass)
+      )
     } catch (err) {
       // redis errors need wrapping as the instance may be shared
       throw new OError(

services/web/app/src/Features/Compile/ClsiManager.mjs

@@ -87,16 +87,14 @@ function getDoubleCompilePercentile(projectId) {
 }
 
 function getNewCompileBackendClass(projectId, compileBackendClass) {
+  const clsi = Settings.apis.clsi
   let cfg
-  switch (compileBackendClass) {
-    case 'c3d':
-      cfg = Settings.apis.clsi_new.doubleCompileFree
-      break
-    case 'c4d':
-      cfg = Settings.apis.clsi_new.doubleCompilePremium
-      break
-    default:
-      throw new Error('unknown ?compileBackendClass')
+  if (compileBackendClass === clsi.standardCompileBackendClass) {
+    cfg = Settings.apis.clsi_new.doubleCompileFree
+  } else if (compileBackendClass === clsi.priorityCompileBackendClass) {
+    cfg = Settings.apis.clsi_new.doubleCompilePremium
+  } else {
+    throw new Error('unknown ?compileBackendClass')
   }
   if (!cfg.backendClass || !cfg.sample) return null
   if (getDoubleCompilePercentile(projectId) >= cfg.sample) return null

services/web/app/src/Features/Compile/CompileController.mjs

@@ -338,7 +338,8 @@ const _CompileController = {
     }
     options.compileGroup =
       req.body?.compileGroup || Settings.defaultFeatures.compileGroup
-    options.compileBackendClass = Settings.apis.clsi.submissionBackendClass
+    options.compileBackendClass =
+      Settings.apis.clsi.submissionCompileBackendClass
     options.timeout =
       req.body?.timeout || Settings.defaultFeatures.compileTimeout
     const { status, outputFiles, clsiServerId, validationProblems } =

services/web/app/src/Features/Compile/CompileManager.mjs

@@ -164,7 +164,10 @@ async function _getUserCompileLimits(userId) {
     timeout:
       ownerFeatures.compileTimeout || Settings.defaultFeatures.compileTimeout,
     compileGroup,
-    compileBackendClass: compileGroup === 'standard' ? 'c3d' : 'c4d',
+    compileBackendClass:
+      compileGroup === 'standard'
+        ? Settings.apis.clsi.standardCompileBackendClass
+        : Settings.apis.clsi.priorityCompileBackendClass,
     ownerAnalyticsId: analyticsId,
   }
 

services/web/config/settings.defaults.js

@@ -252,8 +252,12 @@ module.exports = {
           ? `http://${process.env.CLSI_LB_IP || process.env.CLSI_LB_HOST}:80`
           : `http://${process.env.DOWNLOAD_HOST || '127.0.0.1'}:8080`,
       backendGroupName: undefined,
-      submissionBackendClass:
-        process.env.CLSI_SUBMISSION_BACKEND_CLASS || 'c3d',
+      submissionCompileBackendClass:
+        process.env.CLSI_SUBMISSION_COMPILE_BACKEND_CLASS || 'free',
+      standardCompileBackendClass:
+        process.env.CLSI_STANDARD_COMPILE_BACKEND_CLASS || 'free',
+      priorityCompileBackendClass:
+        process.env.CLSI_PRIORITY_COMPILE_BACKEND_CLASS || 'premium',
     },
     clsiCache: {
       instances: JSON.parse(process.env.CLSI_CACHE_INSTANCES || '[]'),

services/web/test/unit/src/Compile/ClsiCookieManager.test.mjs

@@ -51,7 +51,26 @@ describe('ClsiCookieManager', function () {
         ctx.project_id,
         ctx.user_id,
         '',
-        'c3d'
+        'free'
+      )
+      ctx.redis.get
+        .calledWith(`clsiserver:free:${ctx.project_id}:${ctx.user_id}`)
+        .should.equal(true)
+      serverId.should.equal('clsi-7')
+    })
+
+    it('should fall back to the old key during the free/premium rollout', async function (ctx) {
+      ctx.redis.get
+        .withArgs(`clsiserver:free:${ctx.project_id}:${ctx.user_id}`)
+        .resolves(null)
+      ctx.redis.get
+        .withArgs(`clsiserver:c3d:${ctx.project_id}:${ctx.user_id}`)
+        .resolves('clsi-7')
+      const serverId = await ctx.ClsiCookieManager.promises.getServerId(
+        ctx.project_id,
+        ctx.user_id,
+        '',
+        'free'
       )
       ctx.redis.get
         .calledWith(`clsiserver:c3d:${ctx.project_id}:${ctx.user_id}`)
@@ -83,7 +102,7 @@ describe('ClsiCookieManager', function () {
         ctx.project_id,
         ctx.user_id,
         '',
-        'c3d'
+        'free'
       )
       ctx.ClsiCookieManager.promises._populateServerIdViaRequest
         .calledWith(ctx.project_id, ctx.user_id)
@@ -114,13 +133,13 @@ describe('ClsiCookieManager', function () {
           ctx.project_id,
           ctx.user_id,
           'standard',
-          'c3d'
+          'free'
         )
         const args = ctx.ClsiCookieManager.promises.setServerId.args[0]
         args[0].should.equal(ctx.project_id)
         args[1].should.equal(ctx.user_id)
         args[2].should.equal('standard')
-        args[3].should.equal('c3d')
+        args[3].should.equal('free')
         args[4].should.deep.equal(ctx.clsiServerId)
       })
 
@@ -130,7 +149,7 @@ describe('ClsiCookieManager', function () {
             ctx.project_id,
             ctx.user_id,
             '',
-            'c3d'
+            'free'
           )
         serverId.should.equal(ctx.clsiServerId)
       })
@@ -149,7 +168,7 @@ describe('ClsiCookieManager', function () {
           ctx.project_id,
           ctx.user_id,
           'standard',
-          'c3d',
+          'free',
           ctx.clsiServerId,
           null
         )
@@ -163,9 +182,10 @@ describe('ClsiCookieManager', function () {
       await ctx.ClsiCookieManager.promises.clearServerId(
         ctx.project_id,
         ctx.user_id,
-        'c3d'
+        'free'
       )
       ctx.redis.del.should.have.been.calledWith(
+        `clsiserver:free:${ctx.project_id}:${ctx.user_id}`,
         `clsiserver:c3d:${ctx.project_id}:${ctx.user_id}`
       )
     })
@@ -184,12 +204,12 @@ describe('ClsiCookieManager', function () {
         ctx.project_id,
         ctx.user_id,
         'standard',
-        'c3d',
+        'free',
         ctx.clsiServerId,
         null
       )
       ctx.redis.setex.should.have.been.calledWith(
-        `clsiserver:c3d:${ctx.project_id}:${ctx.user_id}`,
+        `clsiserver:free:${ctx.project_id}:${ctx.user_id}`,
         ctx.settings.clsiCookie.ttlInSeconds,
         ctx.clsiServerId
       )
@@ -201,12 +221,12 @@ describe('ClsiCookieManager', function () {
         ctx.project_id,
         ctx.user_id,
         'standard',
-        'c3d',
+        'free',
         ctx.clsiServerId,
         null
       )
       expect(ctx.redis.setex).to.have.been.calledWith(
-        `clsiserver:c3d:${ctx.project_id}:${ctx.user_id}`,
+        `clsiserver:free:${ctx.project_id}:${ctx.user_id}`,
         ctx.settings.clsiCookie.ttlInSecondsRegular,
         ctx.clsiServerId
       )
@@ -229,7 +249,7 @@ describe('ClsiCookieManager', function () {
           ctx.project_id,
           ctx.user_id,
           'standard',
-          'c3d',
+          'free',
           ctx.clsiServerId,
           null
         )
@@ -254,12 +274,12 @@ describe('ClsiCookieManager', function () {
         ctx.project_id,
         ctx.user_id,
         'standard',
-        'c3d',
+        'free',
         ctx.clsiServerId,
         null
       )
       ctx.redis_secondary.setex.should.have.been.calledWith(
-        `clsiserver:c3d:${ctx.project_id}:${ctx.user_id}`,
+        `clsiserver:free:${ctx.project_id}:${ctx.user_id}`,
         ctx.settings.clsiCookie.ttlInSeconds,
         ctx.clsiServerId
       )
@@ -273,14 +293,14 @@ describe('ClsiCookieManager', function () {
             ctx.project_id,
             ctx.user_id,
             'standard',
-            'c3d',
+            'free',
             ctx.clsiServerId,
             'previous-clsi-server-id'
           )
           expect(
             ctx.fetchUtils.fetchStringWithResponse
           ).to.have.been.calledWith(
-            `${ctx.settings.apis.clsi.url}/instance-state?clsiserverid=previous-clsi-server-id&compileGroup=standard&compileBackendClass=c3d`,
+            `${ctx.settings.apis.clsi.url}/instance-state?clsiserverid=previous-clsi-server-id&compileGroup=standard&compileBackendClass=free`,
             { method: 'GET', signal: sinon.match.instanceOf(AbortSignal) }
           )
         }

services/web/test/unit/src/Compile/ClsiManager.test.mjs

@@ -178,7 +178,9 @@ describe('ClsiManager', function () {
         },
         clsi: {
           url: `http://${CLSI_HOST}`,
-          submissionBackendClass: 'c3d',
+          submissionCompileBackendClass: 'free',
+          standardCompileBackendClass: 'free',
+          priorityCompileBackendClass: 'premium',
         },
         clsi_new: {
           doubleCompileFree: {
@@ -333,7 +335,7 @@ describe('ClsiManager', function () {
           ctx.project._id,
           ctx.user_id,
           {
-            compileBackendClass: 'c3d',
+            compileBackendClass: 'free',
             compileGroup: 'standard',
             timeout: ctx.timeout,
           }
@@ -347,7 +349,7 @@ describe('ClsiManager', function () {
               url.host === CLSI_HOST &&
               url.pathname ===
                 `/project/${ctx.project._id}/user/${ctx.user_id}/compile` &&
-              url.searchParams.get('compileBackendClass') === 'c3d' &&
+              url.searchParams.get('compileBackendClass') === 'free' &&
               url.searchParams.get('compileGroup') === 'standard'
           ),
           {
@@ -427,7 +429,7 @@ describe('ClsiManager', function () {
           ctx.project._id,
           ctx.user_id,
           'standard',
-          'c3d',
+          'free',
           `${ctx.newClsiServerId}1`
         )
       })
@@ -471,7 +473,7 @@ describe('ClsiManager', function () {
           ctx.project._id,
           ctx.user_id,
           {
-            compileBackendClass: 'c3d',
+            compileBackendClass: 'free',
             compileGroup: 'standard',
             timeout: ctx.timeout,
             compileFromHistory: true,
@@ -488,7 +490,7 @@ describe('ClsiManager', function () {
               url.host === CLSI_HOST &&
               url.pathname ===
                 `/project/${ctx.project._id}/user/${ctx.user_id}/compile` &&
-              url.searchParams.get('compileBackendClass') === 'c3d' &&
+              url.searchParams.get('compileBackendClass') === 'free' &&
               url.searchParams.get('compileGroup') === 'standard'
           ),
           {
@@ -576,7 +578,7 @@ describe('ClsiManager', function () {
           ctx.project._id,
           ctx.user_id,
           'standard',
-          'c3d',
+          'free',
           `${ctx.newClsiServerId}1`
         )
       })
@@ -619,7 +621,7 @@ describe('ClsiManager', function () {
         ctx.result = await ctx.ClsiManager.promises.sendRequest(
           ctx.project._id,
           ctx.user_id,
-          { compileBackendClass: 'c3d', compileGroup: 'standard' }
+          { compileBackendClass: 'free', compileGroup: 'standard' }
         )
       })
 
@@ -654,7 +656,7 @@ describe('ClsiManager', function () {
           {
             timeout: 100,
             incrementalCompilesEnabled: true,
-            compileBackendClass: 'c3d',
+            compileBackendClass: 'free',
             compileGroup: 'priority',
             compileFromClsiCache: true,
             populateClsiCache: true,
@@ -707,7 +709,7 @@ describe('ClsiManager', function () {
               url.hostname === CLSI_HOST &&
               url.pathname ===
                 `/project/${ctx.project._id}/user/${ctx.user_id}/compile` &&
-              url.searchParams.get('compileBackendClass') === 'c3d' &&
+              url.searchParams.get('compileBackendClass') === 'free' &&
               url.searchParams.get('compileGroup') === 'priority'
           ),
           {
@@ -1006,7 +1008,7 @@ describe('ClsiManager', function () {
         ctx.result = await ctx.ClsiManager.promises.sendRequest(
           ctx.project._id,
           ctx.user_id,
-          { compileBackendClass: 'c3d' }
+          { compileBackendClass: 'free' }
         )
       })
 
@@ -1031,7 +1033,7 @@ describe('ClsiManager', function () {
       it('should clear the CLSI server id cookie', function (ctx) {
         expect(
           ctx.ClsiCookieManager.promises.clearServerId
-        ).to.have.been.calledWith(ctx.project._id, ctx.user_id, 'c3d')
+        ).to.have.been.calledWith(ctx.project._id, ctx.user_id, 'free')
       })
 
       it('should return a success status', function (ctx) {
@@ -1060,7 +1062,7 @@ describe('ClsiManager', function () {
           ctx.project._id,
           ctx.user_id,
           {
-            compileBackendClass: 'c3d',
+            compileBackendClass: 'free',
             compileGroup: 'standard',
           }
         )
@@ -1076,7 +1078,7 @@ describe('ClsiManager', function () {
               url.host === CLSI_HOST &&
               url.pathname ===
                 `/project/${ctx.project._id}/user/${ctx.user_id}/compile` &&
-              url.searchParams.get('compileBackendClass') === 'c3d' &&
+              url.searchParams.get('compileBackendClass') === 'free' &&
               url.searchParams.get('compileGroup') === 'standard'
           )
         )
@@ -1093,7 +1095,7 @@ describe('ClsiManager', function () {
           ctx.AnalyticsManager.recordEventForUserInBackground
         ).to.have.been.calledWith(ctx.user_id, 'double-compile-result', {
           projectId: 'project-id',
-          compileBackendClass: 'c3d',
+          compileBackendClass: 'free',
           newCompileBackendClass: 'n4',
           status: 'success',
           compileTime: 1337,
@@ -1114,7 +1116,7 @@ describe('ClsiManager', function () {
           ctx.project._id,
           ctx.user_id,
           {
-            compileBackendClass: 'c3d',
+            compileBackendClass: 'free',
             compileGroup: 'standard',
           }
         )
@@ -1130,7 +1132,7 @@ describe('ClsiManager', function () {
               url.host === CLSI_HOST &&
               url.pathname ===
                 `/project/${ctx.project._id}/user/${ctx.user_id}/compile` &&
-              url.searchParams.get('compileBackendClass') === 'c3d' &&
+              url.searchParams.get('compileBackendClass') === 'free' &&
               url.searchParams.get('compileGroup') === 'standard'
           )
         )
@@ -1144,7 +1146,7 @@ describe('ClsiManager', function () {
           ctx.project._id,
           ctx.user_id,
           {
-            compileBackendClass: 'c4d',
+            compileBackendClass: 'premium',
             compileGroup: 'priority',
           }
         )
@@ -1160,7 +1162,7 @@ describe('ClsiManager', function () {
               url.host === CLSI_HOST &&
               url.pathname ===
                 `/project/${ctx.project._id}/user/${ctx.user_id}/compile` &&
-              url.searchParams.get('compileBackendClass') === 'c4d' &&
+              url.searchParams.get('compileBackendClass') === 'premium' &&
               url.searchParams.get('compileGroup') === 'priority'
           )
         )
@@ -1177,7 +1179,7 @@ describe('ClsiManager', function () {
           ctx.AnalyticsManager.recordEventForUserInBackground
         ).to.have.been.calledWith(ctx.user_id, 'double-compile-result', {
           projectId: 'project-id',
-          compileBackendClass: 'c4d',
+          compileBackendClass: 'premium',
           newCompileBackendClass: 'n4d',
           status: 'success',
           compileTime: 1337,
@@ -1222,7 +1224,7 @@ describe('ClsiManager', function () {
         ctx.result = await ctx.ClsiManager.promises.sendExternalRequest(
           ctx.submissionId,
           ctx.clsiRequest,
-          { compileBackendClass: 'c3d', compileGroup: 'standard' }
+          { compileBackendClass: 'free', compileGroup: 'standard' }
         )
       })
 
@@ -1232,7 +1234,7 @@ describe('ClsiManager', function () {
             url =>
               url.host === CLSI_HOST &&
               url.pathname === `/project/${ctx.submissionId}/compile` &&
-              url.searchParams.get('compileBackendClass') === 'c3d' &&
+              url.searchParams.get('compileBackendClass') === 'free' &&
               url.searchParams.get('compileGroup') === 'standard'
           ),
           {
@@ -1297,7 +1299,7 @@ describe('ClsiManager', function () {
         await ctx.ClsiManager.promises.deleteAuxFiles(
           ctx.project._id,
           ctx.user_id,
-          { compileBackendClass: 'c3d', compileGroup: 'standard' },
+          { compileBackendClass: 'free', compileGroup: 'standard' },
           'node-1'
         )
       })
@@ -1309,7 +1311,7 @@ describe('ClsiManager', function () {
               url.host === CLSI_HOST &&
               url.pathname ===
                 `/project/${ctx.project._id}/user/${ctx.user_id}` &&
-              url.searchParams.get('compileBackendClass') === 'c3d' &&
+              url.searchParams.get('compileBackendClass') === 'free' &&
               url.searchParams.get('compileGroup') === 'standard' &&
               url.searchParams.get('clsiserverid') === 'node-1'
           ),
@@ -1331,7 +1333,7 @@ describe('ClsiManager', function () {
 
       it('should clear the clsi persistance', function (ctx) {
         ctx.ClsiCookieManager.promises.clearServerId
-          .calledWith(ctx.project._id, ctx.user_id, 'c3d')
+          .calledWith(ctx.project._id, ctx.user_id, 'free')
           .should.equal(true)
       })
 
@@ -1347,7 +1349,7 @@ describe('ClsiManager', function () {
         await ctx.ClsiManager.promises.deleteAuxFiles(
           ctx.project._id,
           ctx.user_id,
-          { compileBackendClass: 'c4d', compileGroup: 'priority' },
+          { compileBackendClass: 'premium', compileGroup: 'priority' },
           'node-1'
         )
         // wait for the background task to finish
@@ -1357,7 +1359,7 @@ describe('ClsiManager', function () {
       it('should clear both cookies', function (ctx) {
         expect(
           ctx.ClsiCookieManager.promises.clearServerId
-        ).to.have.been.calledWith(ctx.project._id, ctx.user_id, 'c4d')
+        ).to.have.been.calledWith(ctx.project._id, ctx.user_id, 'premium')
         expect(
           ctx.ClsiCookieManager.promises.clearServerId
         ).to.have.been.calledWith(ctx.project._id, ctx.user_id, 'n4d')
@@ -1370,7 +1372,7 @@ describe('ClsiManager', function () {
               url.host === CLSI_HOST &&
               url.pathname ===
                 `/project/${ctx.project._id}/user/${ctx.user_id}` &&
-              url.searchParams.get('compileBackendClass') === 'c4d' &&
+              url.searchParams.get('compileBackendClass') === 'premium' &&
               url.searchParams.get('compileGroup') === 'priority' &&
               url.searchParams.get('clsiserverid') === 'node-1'
           ),
@@ -1399,7 +1401,7 @@ describe('ClsiManager', function () {
           ctx.project._id,
           ctx.user_id,
           false,
-          { compileBackendClass: 'c3d', compileGroup: 'standard' },
+          { compileBackendClass: 'free', compileGroup: 'standard' },
           'node-1'
         )
       })
@@ -1409,7 +1411,7 @@ describe('ClsiManager', function () {
           sinon.match(
             url =>
               url.toString() ===
-              `http://clsi.example.com/project/${ctx.project._id}/user/${ctx.user_id}/wordcount?compileBackendClass=c3d&compileGroup=standard&file=main.tex&image=mock-image-name&clsiserverid=node-1`
+              `http://clsi.example.com/project/${ctx.project._id}/user/${ctx.user_id}/wordcount?compileBackendClass=free&compileGroup=standard&file=main.tex&image=mock-image-name&clsiserverid=node-1`
           )
         )
       })
@@ -1426,7 +1428,7 @@ describe('ClsiManager', function () {
           ctx.project._id,
           ctx.user_id,
           'other.tex',
-          { compileBackendClass: 'c3d', compileGroup: 'standard' },
+          { compileBackendClass: 'free', compileGroup: 'standard' },
           'node-2'
         )
       })
@@ -1438,7 +1440,7 @@ describe('ClsiManager', function () {
               url.host === CLSI_HOST &&
               url.pathname ===
                 `/project/${ctx.project._id}/user/${ctx.user_id}/wordcount` &&
-              url.searchParams.get('compileBackendClass') === 'c3d' &&
+              url.searchParams.get('compileBackendClass') === 'free' &&
               url.searchParams.get('compileGroup') === 'standard' &&
               url.searchParams.get('clsiserverid') === 'node-2' &&
               url.searchParams.get('file') === 'other.tex' &&
@@ -1460,7 +1462,7 @@ describe('ClsiManager', function () {
           ctx.project._id,
           ctx.user_id,
           false,
-          { compileBackendClass: 'c4d', compileGroup: 'priority' },
+          { compileBackendClass: 'premium', compileGroup: 'priority' },
           'node-1'
         )
         // wait for the background task to finish
@@ -1472,7 +1474,7 @@ describe('ClsiManager', function () {
           sinon.match(
             url =>
               url.toString() ===
-              `http://clsi.example.com/project/${ctx.project._id}/user/${ctx.user_id}/wordcount?compileBackendClass=c4d&compileGroup=priority&file=main.tex&image=mock-image-name&clsiserverid=node-1`
+              `http://clsi.example.com/project/${ctx.project._id}/user/${ctx.user_id}/wordcount?compileBackendClass=premium&compileGroup=priority&file=main.tex&image=mock-image-name&clsiserverid=node-1`
           )
         )
         expect(ctx.FetchUtils.fetchStringWithResponse).to.have.been.calledWith(

services/web/test/unit/src/Compile/CompileController.test.mjs

@@ -27,7 +27,7 @@ describe('CompileController', function () {
       promises: {
         compile: sinon.stub(),
         getProjectCompileLimits: sinon.stub().resolves({
-          compileBackendClass: 'c3d',
+          compileBackendClass: 'free',
           compileGroup: 'standard',
         }),
         syncTeX: sinon.stub(),
@@ -48,7 +48,7 @@ describe('CompileController', function () {
         clsi: {
           url: 'http://clsi.example.com:3013',
           downloadHost: 'http://clsi.example.com:8080',
-          submissionBackendClass: 'c3d',
+          submissionCompileBackendClass: 'free',
         },
         clsi_priority: {
           url: 'http://clsi-priority.example.com',
@@ -481,7 +481,7 @@ describe('CompileController', function () {
         ctx.ClsiManager.promises.sendExternalRequest.should.have.been.calledWith(
           ctx.submission_id,
           { compileGroup: 'special', timeout: 600 },
-          { compileGroup: 'special', compileBackendClass: 'c3d', timeout: 600 }
+          { compileGroup: 'special', compileBackendClass: 'free', timeout: 600 }
         )
       })
     })
@@ -512,7 +512,7 @@ describe('CompileController', function () {
             draft: true,
             check: 'validate',
             compileGroup: 'standard',
-            compileBackendClass: 'c3d',
+            compileBackendClass: 'free',
             timeout: 60,
           }
         )
@@ -646,7 +646,7 @@ describe('CompileController', function () {
 
       it('should proxy the PDF from the CLSI', function (ctx) {
         ctx.fetchUtils.fetchStreamWithResponse.should.have.been.calledWith(
-          `${ctx.settings.apis.clsi.url}/project/${ctx.projectId}/user/${ctx.user_id}/build/${ctx.build_id}/output/output.zip?compileBackendClass=c3d&clsiserverid=${ctx.clsiServerId}`
+          `${ctx.settings.apis.clsi.url}/project/${ctx.projectId}/user/${ctx.user_id}/build/${ctx.build_id}/output/output.zip?compileBackendClass=free&clsiserverid=${ctx.clsiServerId}`
         )
       })
     })
@@ -657,7 +657,7 @@ describe('CompileController', function () {
           .stub()
           .resolves({
             compileGroup: 'priority',
-            compileBackendClass: 'c4d',
+            compileBackendClass: 'premium',
           })
         await ctx.CompileController.getOutputZipFromClsi(
           ctx.req,
@@ -668,7 +668,7 @@ describe('CompileController', function () {
 
       it('should proxy the PDF from the CLSI', function (ctx) {
         ctx.fetchUtils.fetchStreamWithResponse.should.have.been.calledWith(
-          `${ctx.settings.apis.clsi.url}/project/${ctx.projectId}/user/${ctx.user_id}/build/${ctx.build_id}/output/output.zip?compileBackendClass=c4d&clsiserverid=${ctx.clsiServerId}`
+          `${ctx.settings.apis.clsi.url}/project/${ctx.projectId}/user/${ctx.user_id}/build/${ctx.build_id}/output/output.zip?compileBackendClass=premium&clsiserverid=${ctx.clsiServerId}`
         )
       })
     })

services/web/test/unit/src/Compile/CompileManager.test.mjs

@@ -19,7 +19,11 @@ describe('CompileManager', function () {
     vi.doMock('@overleaf/settings', () => ({
       default: (ctx.settings = {
         apis: {
-          clsi: { submissionBackendClass: 'c3d' },
+          clsi: {
+            submissionCompileBackendClass: 'free',
+            standardCompileBackendClass: 'free',
+            priorityCompileBackendClass: 'premium',
+          },
         },
         redis: { web: { host: '127.0.0.1', port: 42 } },
         rateLimit: { autoCompile: {} },
@@ -292,7 +296,7 @@ describe('CompileManager', function () {
         .calledWith(null, {
           timeout: ctx.timeout,
           compileGroup: ctx.group,
-          compileBackendClass: 'c4d',
+          compileBackendClass: 'premium',
           ownerAnalyticsId: 'abc',
         })
         .should.equal(true)
@@ -322,7 +326,7 @@ describe('CompileManager', function () {
           await ctx.CompileManager.promises.getProjectCompileLimits(
             ctx.project_id
           )
-        expect(compileBackendClass).to.equal('c4d')
+        expect(compileBackendClass).to.equal('premium')
       })
     })
   })