Allow SocketsHttpHandler.ConnectCallback for sync requests - #45300

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stephentoub merged 1 commit into
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stephentoub:syncconnectcallback
Nov 30, 2020
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Allow SocketsHttpHandler.ConnectCallback for sync requests#45300
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stephentoub:syncconnectcallback

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HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.
This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.
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Issue Details

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

Author:stephentoub
Assignees:-
Labels:

area-System.Net.Http

Milestone:-

// we could add a Boolean to SocketsHttpConnectionContext (https://github.com/dotnet/runtime/issues/44876) to let the callback know whether
// this request is sync or async. For now, log it and block.
Trace($"{nameof(SocketsHttpHandler.ConnectCallback)} completing asynchronously for a synchronous request.");
stream = streamTask.AsTask().GetAwaiter().GetResult();

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Shouldn't we rather throw instead of blocking for sync?

@stephentoubstephentoubNov 30, 2020

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That was what I did initially, but I think that's problematic because it's non-deterministic: if the operation happens to complete by the time we check, it won't throw, but if it doesn't, it will. That then makes it much more likely you'll only experience the failures once you deploy. We already block in other circumstances as well, e.g. if you have a MaxConnectionsPerServer set, we'll block waiting for an available connection for sync operations, rather than throwing, so not throwing here is consistent with that, too. This is different from the base Send/SendAsync methods, where in general not overriding a relevant sync method in the handler chain will deterministically fail; on top of that, all of our implementations shipped "in the box" override appropriately.

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I guess my original concern will get addressed with the proper implementation of #44876, and you're reasoning makes sense here. So thanks.

@stephentoub
stephentoub merged commit 296f4de into dotnet:masterNov 30, 2020
@stephentoub
stephentoub deleted the syncconnectcallback branch November 30, 2020 18:52
@ghostghost locked as resolved and limited conversation to collaborators Dec 30, 2020
@karelzkarelz added this to the 6.0.0 milestone Jan 26, 2021
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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Allow SocketsHttpHandler.ConnectCallback for sync requests - #45300

Merged
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback
Nov 30, 2020
Merged

Allow SocketsHttpHandler.ConnectCallback for sync requests#45300
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback

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HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.
This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.
@ghost

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See info in area-owners.md if you want to be subscribed.

Issue Details

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

Author:stephentoub
Assignees:-
Labels:

area-System.Net.Http

Milestone:-

// we could add a Boolean to SocketsHttpConnectionContext (https://github.com/dotnet/runtime/issues/44876) to let the callback know whether
// this request is sync or async. For now, log it and block.
Trace($"{nameof(SocketsHttpHandler.ConnectCallback)} completing asynchronously for a synchronous request.");
stream = streamTask.AsTask().GetAwaiter().GetResult();

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Shouldn't we rather throw instead of blocking for sync?

@stephentoubstephentoubNov 30, 2020

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That was what I did initially, but I think that's problematic because it's non-deterministic: if the operation happens to complete by the time we check, it won't throw, but if it doesn't, it will. That then makes it much more likely you'll only experience the failures once you deploy. We already block in other circumstances as well, e.g. if you have a MaxConnectionsPerServer set, we'll block waiting for an available connection for sync operations, rather than throwing, so not throwing here is consistent with that, too. This is different from the base Send/SendAsync methods, where in general not overriding a relevant sync method in the handler chain will deterministically fail; on top of that, all of our implementations shipped "in the box" override appropriately.

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I guess my original concern will get addressed with the proper implementation of #44876, and you're reasoning makes sense here. So thanks.

@stephentoub
stephentoub merged commit 296f4de into dotnet:masterNov 30, 2020
@stephentoub
stephentoub deleted the syncconnectcallback branch November 30, 2020 18:52
@ghostghost locked as resolved and limited conversation to collaborators Dec 30, 2020
@karelzkarelz added this to the 6.0.0 milestone Jan 26, 2021
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Allow SocketsHttpHandler.ConnectCallback for sync requests - #45300

Merged
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback
Nov 30, 2020
Merged

Allow SocketsHttpHandler.ConnectCallback for sync requests#45300
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback

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@stephentoub

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HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.
This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.
@ghost

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Tagging subscribers to this area: @dotnet/ncl
See info in area-owners.md if you want to be subscribed.

Issue Details

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

Author:stephentoub
Assignees:-
Labels:

area-System.Net.Http

Milestone:-

// we could add a Boolean to SocketsHttpConnectionContext (https://github.com/dotnet/runtime/issues/44876) to let the callback know whether
// this request is sync or async. For now, log it and block.
Trace($"{nameof(SocketsHttpHandler.ConnectCallback)} completing asynchronously for a synchronous request.");
stream = streamTask.AsTask().GetAwaiter().GetResult();

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Shouldn't we rather throw instead of blocking for sync?

@stephentoubstephentoubNov 30, 2020

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That was what I did initially, but I think that's problematic because it's non-deterministic: if the operation happens to complete by the time we check, it won't throw, but if it doesn't, it will. That then makes it much more likely you'll only experience the failures once you deploy. We already block in other circumstances as well, e.g. if you have a MaxConnectionsPerServer set, we'll block waiting for an available connection for sync operations, rather than throwing, so not throwing here is consistent with that, too. This is different from the base Send/SendAsync methods, where in general not overriding a relevant sync method in the handler chain will deterministically fail; on top of that, all of our implementations shipped "in the box" override appropriately.

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I guess my original concern will get addressed with the proper implementation of #44876, and you're reasoning makes sense here. So thanks.

@stephentoub
stephentoub merged commit 296f4de into dotnet:masterNov 30, 2020
@stephentoub
stephentoub deleted the syncconnectcallback branch November 30, 2020 18:52
@ghostghost locked as resolved and limited conversation to collaborators Dec 30, 2020
@karelzkarelz added this to the 6.0.0 milestone Jan 26, 2021
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Allow SocketsHttpHandler.ConnectCallback for sync requests - #45300

Merged
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback
Nov 30, 2020
Merged

Allow SocketsHttpHandler.ConnectCallback for sync requests#45300
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback

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HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.
This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.
@ghost

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Tagging subscribers to this area: @dotnet/ncl
See info in area-owners.md if you want to be subscribed.

Issue Details

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

Author:stephentoub
Assignees:-
Labels:

area-System.Net.Http

Milestone:-

// we could add a Boolean to SocketsHttpConnectionContext (https://github.com/dotnet/runtime/issues/44876) to let the callback know whether
// this request is sync or async. For now, log it and block.
Trace($"{nameof(SocketsHttpHandler.ConnectCallback)} completing asynchronously for a synchronous request.");
stream = streamTask.AsTask().GetAwaiter().GetResult();

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Shouldn't we rather throw instead of blocking for sync?

@stephentoubstephentoubNov 30, 2020

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That was what I did initially, but I think that's problematic because it's non-deterministic: if the operation happens to complete by the time we check, it won't throw, but if it doesn't, it will. That then makes it much more likely you'll only experience the failures once you deploy. We already block in other circumstances as well, e.g. if you have a MaxConnectionsPerServer set, we'll block waiting for an available connection for sync operations, rather than throwing, so not throwing here is consistent with that, too. This is different from the base Send/SendAsync methods, where in general not overriding a relevant sync method in the handler chain will deterministically fail; on top of that, all of our implementations shipped "in the box" override appropriately.

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I guess my original concern will get addressed with the proper implementation of #44876, and you're reasoning makes sense here. So thanks.

@stephentoub
stephentoub merged commit 296f4de into dotnet:masterNov 30, 2020
@stephentoub
stephentoub deleted the syncconnectcallback branch November 30, 2020 18:52
@ghostghost locked as resolved and limited conversation to collaborators Dec 30, 2020
@karelzkarelz added this to the 6.0.0 milestone Jan 26, 2021
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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Allow SocketsHttpHandler.ConnectCallback for sync requests - #45300

Merged
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback
Nov 30, 2020
Merged

Allow SocketsHttpHandler.ConnectCallback for sync requests#45300
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback

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HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.
This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.
@ghost

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Tagging subscribers to this area: @dotnet/ncl
See info in area-owners.md if you want to be subscribed.

Issue Details

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

Author:stephentoub
Assignees:-
Labels:

area-System.Net.Http

Milestone:-

// we could add a Boolean to SocketsHttpConnectionContext (https://github.com/dotnet/runtime/issues/44876) to let the callback know whether
// this request is sync or async. For now, log it and block.
Trace($"{nameof(SocketsHttpHandler.ConnectCallback)} completing asynchronously for a synchronous request.");
stream = streamTask.AsTask().GetAwaiter().GetResult();

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Shouldn't we rather throw instead of blocking for sync?

@stephentoubstephentoubNov 30, 2020

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That was what I did initially, but I think that's problematic because it's non-deterministic: if the operation happens to complete by the time we check, it won't throw, but if it doesn't, it will. That then makes it much more likely you'll only experience the failures once you deploy. We already block in other circumstances as well, e.g. if you have a MaxConnectionsPerServer set, we'll block waiting for an available connection for sync operations, rather than throwing, so not throwing here is consistent with that, too. This is different from the base Send/SendAsync methods, where in general not overriding a relevant sync method in the handler chain will deterministically fail; on top of that, all of our implementations shipped "in the box" override appropriately.

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I guess my original concern will get addressed with the proper implementation of #44876, and you're reasoning makes sense here. So thanks.

@stephentoub
stephentoub merged commit 296f4de into dotnet:masterNov 30, 2020
@stephentoub
stephentoub deleted the syncconnectcallback branch November 30, 2020 18:52
@ghostghost locked as resolved and limited conversation to collaborators Dec 30, 2020
@karelzkarelz added this to the 6.0.0 milestone Jan 26, 2021
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Allow SocketsHttpHandler.ConnectCallback for sync requests - #45300

Merged
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback
Nov 30, 2020
Merged

Allow SocketsHttpHandler.ConnectCallback for sync requests#45300
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback

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HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.
This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.
@ghost

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Tagging subscribers to this area: @dotnet/ncl
See info in area-owners.md if you want to be subscribed.

Issue Details

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

Author:stephentoub
Assignees:-
Labels:

area-System.Net.Http

Milestone:-

// we could add a Boolean to SocketsHttpConnectionContext (https://github.com/dotnet/runtime/issues/44876) to let the callback know whether
// this request is sync or async. For now, log it and block.
Trace($"{nameof(SocketsHttpHandler.ConnectCallback)} completing asynchronously for a synchronous request.");
stream = streamTask.AsTask().GetAwaiter().GetResult();

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Shouldn't we rather throw instead of blocking for sync?

@stephentoubstephentoubNov 30, 2020

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That was what I did initially, but I think that's problematic because it's non-deterministic: if the operation happens to complete by the time we check, it won't throw, but if it doesn't, it will. That then makes it much more likely you'll only experience the failures once you deploy. We already block in other circumstances as well, e.g. if you have a MaxConnectionsPerServer set, we'll block waiting for an available connection for sync operations, rather than throwing, so not throwing here is consistent with that, too. This is different from the base Send/SendAsync methods, where in general not overriding a relevant sync method in the handler chain will deterministically fail; on top of that, all of our implementations shipped "in the box" override appropriately.

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I guess my original concern will get addressed with the proper implementation of #44876, and you're reasoning makes sense here. So thanks.

@stephentoub
stephentoub merged commit 296f4de into dotnet:masterNov 30, 2020
@stephentoub
stephentoub deleted the syncconnectcallback branch November 30, 2020 18:52
@ghostghost locked as resolved and limited conversation to collaborators Dec 30, 2020
@karelzkarelz added this to the 6.0.0 milestone Jan 26, 2021
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@stephentoub@ManickaP@geoffkizer@karelz@Dotnet-GitSync-Bot
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Allow SocketsHttpHandler.ConnectCallback for sync requests - #45300

Merged
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback
Nov 30, 2020
Merged

Allow SocketsHttpHandler.ConnectCallback for sync requests#45300
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback

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@stephentoub

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HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.
This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.
@ghost

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Tagging subscribers to this area: @dotnet/ncl
See info in area-owners.md if you want to be subscribed.

Issue Details

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

Author:stephentoub
Assignees:-
Labels:

area-System.Net.Http

Milestone:-

// we could add a Boolean to SocketsHttpConnectionContext (https://github.com/dotnet/runtime/issues/44876) to let the callback know whether
// this request is sync or async. For now, log it and block.
Trace($"{nameof(SocketsHttpHandler.ConnectCallback)} completing asynchronously for a synchronous request.");
stream = streamTask.AsTask().GetAwaiter().GetResult();

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Shouldn't we rather throw instead of blocking for sync?

@stephentoubstephentoubNov 30, 2020

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That was what I did initially, but I think that's problematic because it's non-deterministic: if the operation happens to complete by the time we check, it won't throw, but if it doesn't, it will. That then makes it much more likely you'll only experience the failures once you deploy. We already block in other circumstances as well, e.g. if you have a MaxConnectionsPerServer set, we'll block waiting for an available connection for sync operations, rather than throwing, so not throwing here is consistent with that, too. This is different from the base Send/SendAsync methods, where in general not overriding a relevant sync method in the handler chain will deterministically fail; on top of that, all of our implementations shipped "in the box" override appropriately.

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I guess my original concern will get addressed with the proper implementation of #44876, and you're reasoning makes sense here. So thanks.

@stephentoub
stephentoub merged commit 296f4de into dotnet:masterNov 30, 2020
@stephentoub
stephentoub deleted the syncconnectcallback branch November 30, 2020 18:52
@ghostghost locked as resolved and limited conversation to collaborators Dec 30, 2020
@karelzkarelz added this to the 6.0.0 milestone Jan 26, 2021
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Successfully merging this pull request may close these issues.

5 participants

@stephentoub@ManickaP@geoffkizer@karelz@Dotnet-GitSync-Bot
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
Skip to content

Allow SocketsHttpHandler.ConnectCallback for sync requests - #45300

Merged
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback
Nov 30, 2020
Merged

Allow SocketsHttpHandler.ConnectCallback for sync requests#45300
stephentoub merged 1 commit into
dotnet:masterfrom
stephentoub:syncconnectcallback

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@stephentoub

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HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.
This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.
@ghost

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Tagging subscribers to this area: @dotnet/ncl
See info in area-owners.md if you want to be subscribed.

Issue Details

HTTP/1.1 support with sync requests currently doesn't work when a ConnectCallback is specified, even though a developer who wanted to make synchronous requests could provide a synchronously-completing callback.

This also consolidates the connect logic across sync/async, avoids an extra delegate, etc.

Contributes to #44876
cc: @geoffkizer, @scalablecory, @ManickaP

Author:stephentoub
Assignees:-
Labels:

area-System.Net.Http

Milestone:-

// we could add a Boolean to SocketsHttpConnectionContext (https://github.com/dotnet/runtime/issues/44876) to let the callback know whether
// this request is sync or async. For now, log it and block.
Trace($"{nameof(SocketsHttpHandler.ConnectCallback)} completing asynchronously for a synchronous request.");
stream = streamTask.AsTask().GetAwaiter().GetResult();

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Shouldn't we rather throw instead of blocking for sync?

@stephentoubstephentoubNov 30, 2020

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That was what I did initially, but I think that's problematic because it's non-deterministic: if the operation happens to complete by the time we check, it won't throw, but if it doesn't, it will. That then makes it much more likely you'll only experience the failures once you deploy. We already block in other circumstances as well, e.g. if you have a MaxConnectionsPerServer set, we'll block waiting for an available connection for sync operations, rather than throwing, so not throwing here is consistent with that, too. This is different from the base Send/SendAsync methods, where in general not overriding a relevant sync method in the handler chain will deterministically fail; on top of that, all of our implementations shipped "in the box" override appropriately.

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I guess my original concern will get addressed with the proper implementation of #44876, and you're reasoning makes sense here. So thanks.

@stephentoub
stephentoub merged commit 296f4de into dotnet:masterNov 30, 2020
@stephentoub
stephentoub deleted the syncconnectcallback branch November 30, 2020 18:52
@ghostghost locked as resolved and limited conversation to collaborators Dec 30, 2020
@karelzkarelz added this to the 6.0.0 milestone Jan 26, 2021
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Successfully merging this pull request may close these issues.

5 participants

@stephentoub@ManickaP@geoffkizer@karelz@Dotnet-GitSync-Bot