update proxy setting on registry changes - #103364

Merged
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate
Jul 8, 2024
Merged

update proxy setting on registry changes#103364
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate

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update proxy configuration on registry changes on Windows. That for example allows to start Fiddler and start capturing traffic without need to restart the process. It can of course also pick changes user does directly via Setting widget.

fixes#46910 and contributes to #95252.
It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

Note that this does not apply to existing connections. e.g. the updated setting applies only when new connection is needed. If that is problem, it can perhaps be mitigated by either idea or absolute time on connection pool..

It also cannot detect changes to PAC or cases when something changes inside "auto" but there is no registry change.

@wfurtwfurt added this to the 9.0.0 milestone Jun 12, 2024
@wfurt
wfurt requested a review from a teamJune 12, 2024 18:30
@wfurtwfurt self-assigned this Jun 12, 2024
proxy.UpdateConfiguration();
}

private void UpdateConfiguration()

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Is it possible for multiple UpdateConfiguration() callbacks to run in parallel if there are multiple registry edits done in sequence?

We may want to ensure that the most recent UpdateConfiguration wins in this case.

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The notifications do not have content. e.g. I think it would work just fine as long as the updates would finish in sequence they started.

The problem may be if let say there are part A and B. B get updated and that starts update reading old A. A updates, new config update starts and finishes before first update is done. The first task may be winner writing older configuration.

If we feel this is concern we have several options. We can simply lock the proxy object in the callback. Since that is only one place the only contention would be registry notification. But I'm not sure if that can cause any troubles for the thread pool. We can also update ThreadPool.RegisterWaitForSingleObject to fire only once but then we need new registration every time and I don't know how expensive that is (relative to all the other processing) I was also originally thinking about swapping the order of RegNotifyChangeKeyValue and UpdateConfiguration but I think we may miss some notifications in that case.

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I do not see a problem with taking the lock.

@ManickaP

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It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

We didn't want to implement new API, we wanted to change the behavior which at the moment is fetch once per whole process lifetime. So we also talked about rechecking environment variables every time you call GetSystemProxy, which this PR doesn't handle AFAICT.

@ManickaPManickaP mentioned this pull request Jun 13, 2024
Co-authored-by: Jan Kotas <jkotas@microsoft.com>
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all tests failures are known issues. This is ready for another review round.

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rzikm self-requested a review July 2, 2024 16:00

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LGTM

@wfurt
wfurt merged commit e71e0f4 into dotnet:mainJul 8, 2024
@wfurt
wfurt deleted the proxyUpdate branch July 8, 2024 04:22
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HttpClient.DefaultProxy should respect IE proxy changes

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@wfurt@ManickaP@stephentoub@jkotas@rzikm
, '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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update proxy setting on registry changes - #103364

Merged
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate
Jul 8, 2024
Merged

update proxy setting on registry changes#103364
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate

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@wfurt

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update proxy configuration on registry changes on Windows. That for example allows to start Fiddler and start capturing traffic without need to restart the process. It can of course also pick changes user does directly via Setting widget.

fixes#46910 and contributes to #95252.
It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

Note that this does not apply to existing connections. e.g. the updated setting applies only when new connection is needed. If that is problem, it can perhaps be mitigated by either idea or absolute time on connection pool..

It also cannot detect changes to PAC or cases when something changes inside "auto" but there is no registry change.

@wfurtwfurt added this to the 9.0.0 milestone Jun 12, 2024
@wfurt
wfurt requested a review from a teamJune 12, 2024 18:30
@wfurtwfurt self-assigned this Jun 12, 2024
proxy.UpdateConfiguration();
}

private void UpdateConfiguration()

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Is it possible for multiple UpdateConfiguration() callbacks to run in parallel if there are multiple registry edits done in sequence?

We may want to ensure that the most recent UpdateConfiguration wins in this case.

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MemberAuthor

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The notifications do not have content. e.g. I think it would work just fine as long as the updates would finish in sequence they started.

The problem may be if let say there are part A and B. B get updated and that starts update reading old A. A updates, new config update starts and finishes before first update is done. The first task may be winner writing older configuration.

If we feel this is concern we have several options. We can simply lock the proxy object in the callback. Since that is only one place the only contention would be registry notification. But I'm not sure if that can cause any troubles for the thread pool. We can also update ThreadPool.RegisterWaitForSingleObject to fire only once but then we need new registration every time and I don't know how expensive that is (relative to all the other processing) I was also originally thinking about swapping the order of RegNotifyChangeKeyValue and UpdateConfiguration but I think we may miss some notifications in that case.

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I do not see a problem with taking the lock.

@ManickaP

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It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

We didn't want to implement new API, we wanted to change the behavior which at the moment is fetch once per whole process lifetime. So we also talked about rechecking environment variables every time you call GetSystemProxy, which this PR doesn't handle AFAICT.

@ManickaPManickaP mentioned this pull request Jun 13, 2024
Co-authored-by: Jan Kotas <jkotas@microsoft.com>
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all tests failures are known issues. This is ready for another review round.

@rzikm
rzikm self-requested a review July 2, 2024 16:00

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LGTM

@wfurt
wfurt merged commit e71e0f4 into dotnet:mainJul 8, 2024
@wfurt
wfurt deleted the proxyUpdate branch July 8, 2024 04:22
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HttpClient.DefaultProxy should respect IE proxy changes

5 participants

@wfurt@ManickaP@stephentoub@jkotas@rzikm
, '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('^' + ".*" + '
Skip to content

update proxy setting on registry changes - #103364

Merged
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate
Jul 8, 2024
Merged

update proxy setting on registry changes#103364
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate

Conversation

@wfurt

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update proxy configuration on registry changes on Windows. That for example allows to start Fiddler and start capturing traffic without need to restart the process. It can of course also pick changes user does directly via Setting widget.

fixes#46910 and contributes to #95252.
It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

Note that this does not apply to existing connections. e.g. the updated setting applies only when new connection is needed. If that is problem, it can perhaps be mitigated by either idea or absolute time on connection pool..

It also cannot detect changes to PAC or cases when something changes inside "auto" but there is no registry change.

@wfurtwfurt added this to the 9.0.0 milestone Jun 12, 2024
@wfurt
wfurt requested a review from a teamJune 12, 2024 18:30
@wfurtwfurt self-assigned this Jun 12, 2024
proxy.UpdateConfiguration();
}

private void UpdateConfiguration()

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Is it possible for multiple UpdateConfiguration() callbacks to run in parallel if there are multiple registry edits done in sequence?

We may want to ensure that the most recent UpdateConfiguration wins in this case.

Copy link
Copy Markdown
MemberAuthor

Choose a reason for hiding this comment

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The notifications do not have content. e.g. I think it would work just fine as long as the updates would finish in sequence they started.

The problem may be if let say there are part A and B. B get updated and that starts update reading old A. A updates, new config update starts and finishes before first update is done. The first task may be winner writing older configuration.

If we feel this is concern we have several options. We can simply lock the proxy object in the callback. Since that is only one place the only contention would be registry notification. But I'm not sure if that can cause any troubles for the thread pool. We can also update ThreadPool.RegisterWaitForSingleObject to fire only once but then we need new registration every time and I don't know how expensive that is (relative to all the other processing) I was also originally thinking about swapping the order of RegNotifyChangeKeyValue and UpdateConfiguration but I think we may miss some notifications in that case.

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I do not see a problem with taking the lock.

@ManickaP

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It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

We didn't want to implement new API, we wanted to change the behavior which at the moment is fetch once per whole process lifetime. So we also talked about rechecking environment variables every time you call GetSystemProxy, which this PR doesn't handle AFAICT.

@ManickaPManickaP mentioned this pull request Jun 13, 2024
Co-authored-by: Jan Kotas <jkotas@microsoft.com>
@wfurt

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all tests failures are known issues. This is ready for another review round.

@rzikm
rzikm self-requested a review July 2, 2024 16:00

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LGTM

@wfurt
wfurt merged commit e71e0f4 into dotnet:mainJul 8, 2024
@wfurt
wfurt deleted the proxyUpdate branch July 8, 2024 04:22
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HttpClient.DefaultProxy should respect IE proxy changes

5 participants

@wfurt@ManickaP@stephentoub@jkotas@rzikm
, '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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update proxy setting on registry changes - #103364

Merged
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate
Jul 8, 2024
Merged

update proxy setting on registry changes#103364
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate

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@wfurt

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update proxy configuration on registry changes on Windows. That for example allows to start Fiddler and start capturing traffic without need to restart the process. It can of course also pick changes user does directly via Setting widget.

fixes#46910 and contributes to #95252.
It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

Note that this does not apply to existing connections. e.g. the updated setting applies only when new connection is needed. If that is problem, it can perhaps be mitigated by either idea or absolute time on connection pool..

It also cannot detect changes to PAC or cases when something changes inside "auto" but there is no registry change.

@wfurtwfurt added this to the 9.0.0 milestone Jun 12, 2024
@wfurt
wfurt requested a review from a teamJune 12, 2024 18:30
@wfurtwfurt self-assigned this Jun 12, 2024
proxy.UpdateConfiguration();
}

private void UpdateConfiguration()

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Is it possible for multiple UpdateConfiguration() callbacks to run in parallel if there are multiple registry edits done in sequence?

We may want to ensure that the most recent UpdateConfiguration wins in this case.

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MemberAuthor

Choose a reason for hiding this comment

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The notifications do not have content. e.g. I think it would work just fine as long as the updates would finish in sequence they started.

The problem may be if let say there are part A and B. B get updated and that starts update reading old A. A updates, new config update starts and finishes before first update is done. The first task may be winner writing older configuration.

If we feel this is concern we have several options. We can simply lock the proxy object in the callback. Since that is only one place the only contention would be registry notification. But I'm not sure if that can cause any troubles for the thread pool. We can also update ThreadPool.RegisterWaitForSingleObject to fire only once but then we need new registration every time and I don't know how expensive that is (relative to all the other processing) I was also originally thinking about swapping the order of RegNotifyChangeKeyValue and UpdateConfiguration but I think we may miss some notifications in that case.

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I do not see a problem with taking the lock.

@ManickaP

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It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

We didn't want to implement new API, we wanted to change the behavior which at the moment is fetch once per whole process lifetime. So we also talked about rechecking environment variables every time you call GetSystemProxy, which this PR doesn't handle AFAICT.

@ManickaPManickaP mentioned this pull request Jun 13, 2024
Co-authored-by: Jan Kotas <jkotas@microsoft.com>
@wfurt

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all tests failures are known issues. This is ready for another review round.

@rzikm
rzikm self-requested a review July 2, 2024 16:00

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LGTM

@wfurt
wfurt merged commit e71e0f4 into dotnet:mainJul 8, 2024
@wfurt
wfurt deleted the proxyUpdate branch July 8, 2024 04:22
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HttpClient.DefaultProxy should respect IE proxy changes

5 participants

@wfurt@ManickaP@stephentoub@jkotas@rzikm
, '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" + '
Skip to content

update proxy setting on registry changes - #103364

Merged
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate
Jul 8, 2024
Merged

update proxy setting on registry changes#103364
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate

Conversation

@wfurt

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Member

update proxy configuration on registry changes on Windows. That for example allows to start Fiddler and start capturing traffic without need to restart the process. It can of course also pick changes user does directly via Setting widget.

fixes#46910 and contributes to #95252.
It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

Note that this does not apply to existing connections. e.g. the updated setting applies only when new connection is needed. If that is problem, it can perhaps be mitigated by either idea or absolute time on connection pool..

It also cannot detect changes to PAC or cases when something changes inside "auto" but there is no registry change.

@wfurtwfurt added this to the 9.0.0 milestone Jun 12, 2024
@wfurt
wfurt requested a review from a teamJune 12, 2024 18:30
@wfurtwfurt self-assigned this Jun 12, 2024
proxy.UpdateConfiguration();
}

private void UpdateConfiguration()

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Is it possible for multiple UpdateConfiguration() callbacks to run in parallel if there are multiple registry edits done in sequence?

We may want to ensure that the most recent UpdateConfiguration wins in this case.

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Copy Markdown
MemberAuthor

Choose a reason for hiding this comment

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The notifications do not have content. e.g. I think it would work just fine as long as the updates would finish in sequence they started.

The problem may be if let say there are part A and B. B get updated and that starts update reading old A. A updates, new config update starts and finishes before first update is done. The first task may be winner writing older configuration.

If we feel this is concern we have several options. We can simply lock the proxy object in the callback. Since that is only one place the only contention would be registry notification. But I'm not sure if that can cause any troubles for the thread pool. We can also update ThreadPool.RegisterWaitForSingleObject to fire only once but then we need new registration every time and I don't know how expensive that is (relative to all the other processing) I was also originally thinking about swapping the order of RegNotifyChangeKeyValue and UpdateConfiguration but I think we may miss some notifications in that case.

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I do not see a problem with taking the lock.

@ManickaP

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It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

We didn't want to implement new API, we wanted to change the behavior which at the moment is fetch once per whole process lifetime. So we also talked about rechecking environment variables every time you call GetSystemProxy, which this PR doesn't handle AFAICT.

@ManickaPManickaP mentioned this pull request Jun 13, 2024
Co-authored-by: Jan Kotas <jkotas@microsoft.com>
@wfurt

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all tests failures are known issues. This is ready for another review round.

@rzikm
rzikm self-requested a review July 2, 2024 16:00

@rzikmrzikm left a comment

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LGTM

@wfurt
wfurt merged commit e71e0f4 into dotnet:mainJul 8, 2024
@wfurt
wfurt deleted the proxyUpdate branch July 8, 2024 04:22
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Aug 7, 2024
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Successfully merging this pull request may close these issues.

HttpClient.DefaultProxy should respect IE proxy changes

5 participants

@wfurt@ManickaP@stephentoub@jkotas@rzikm
, '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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update proxy setting on registry changes - #103364

Merged
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate
Jul 8, 2024
Merged

update proxy setting on registry changes#103364
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate

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update proxy configuration on registry changes on Windows. That for example allows to start Fiddler and start capturing traffic without need to restart the process. It can of course also pick changes user does directly via Setting widget.

fixes#46910 and contributes to #95252.
It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

Note that this does not apply to existing connections. e.g. the updated setting applies only when new connection is needed. If that is problem, it can perhaps be mitigated by either idea or absolute time on connection pool..

It also cannot detect changes to PAC or cases when something changes inside "auto" but there is no registry change.

@wfurtwfurt added this to the 9.0.0 milestone Jun 12, 2024
@wfurt
wfurt requested a review from a teamJune 12, 2024 18:30
@wfurtwfurt self-assigned this Jun 12, 2024
proxy.UpdateConfiguration();
}

private void UpdateConfiguration()

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Is it possible for multiple UpdateConfiguration() callbacks to run in parallel if there are multiple registry edits done in sequence?

We may want to ensure that the most recent UpdateConfiguration wins in this case.

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The notifications do not have content. e.g. I think it would work just fine as long as the updates would finish in sequence they started.

The problem may be if let say there are part A and B. B get updated and that starts update reading old A. A updates, new config update starts and finishes before first update is done. The first task may be winner writing older configuration.

If we feel this is concern we have several options. We can simply lock the proxy object in the callback. Since that is only one place the only contention would be registry notification. But I'm not sure if that can cause any troubles for the thread pool. We can also update ThreadPool.RegisterWaitForSingleObject to fire only once but then we need new registration every time and I don't know how expensive that is (relative to all the other processing) I was also originally thinking about swapping the order of RegNotifyChangeKeyValue and UpdateConfiguration but I think we may miss some notifications in that case.

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I do not see a problem with taking the lock.

@ManickaP

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It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

We didn't want to implement new API, we wanted to change the behavior which at the moment is fetch once per whole process lifetime. So we also talked about rechecking environment variables every time you call GetSystemProxy, which this PR doesn't handle AFAICT.

@ManickaPManickaP mentioned this pull request Jun 13, 2024
Co-authored-by: Jan Kotas <jkotas@microsoft.com>
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all tests failures are known issues. This is ready for another review round.

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rzikm self-requested a review July 2, 2024 16:00

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LGTM

@wfurt
wfurt merged commit e71e0f4 into dotnet:mainJul 8, 2024
@wfurt
wfurt deleted the proxyUpdate branch July 8, 2024 04:22
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HttpClient.DefaultProxy should respect IE proxy changes

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@wfurt@ManickaP@stephentoub@jkotas@rzikm
, '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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update proxy setting on registry changes - #103364

Merged
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate
Jul 8, 2024
Merged

update proxy setting on registry changes#103364
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate

Conversation

@wfurt

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update proxy configuration on registry changes on Windows. That for example allows to start Fiddler and start capturing traffic without need to restart the process. It can of course also pick changes user does directly via Setting widget.

fixes#46910 and contributes to #95252.
It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

Note that this does not apply to existing connections. e.g. the updated setting applies only when new connection is needed. If that is problem, it can perhaps be mitigated by either idea or absolute time on connection pool..

It also cannot detect changes to PAC or cases when something changes inside "auto" but there is no registry change.

@wfurtwfurt added this to the 9.0.0 milestone Jun 12, 2024
@wfurt
wfurt requested a review from a teamJune 12, 2024 18:30
@wfurtwfurt self-assigned this Jun 12, 2024
proxy.UpdateConfiguration();
}

private void UpdateConfiguration()

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Is it possible for multiple UpdateConfiguration() callbacks to run in parallel if there are multiple registry edits done in sequence?

We may want to ensure that the most recent UpdateConfiguration wins in this case.

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MemberAuthor

Choose a reason for hiding this comment

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The notifications do not have content. e.g. I think it would work just fine as long as the updates would finish in sequence they started.

The problem may be if let say there are part A and B. B get updated and that starts update reading old A. A updates, new config update starts and finishes before first update is done. The first task may be winner writing older configuration.

If we feel this is concern we have several options. We can simply lock the proxy object in the callback. Since that is only one place the only contention would be registry notification. But I'm not sure if that can cause any troubles for the thread pool. We can also update ThreadPool.RegisterWaitForSingleObject to fire only once but then we need new registration every time and I don't know how expensive that is (relative to all the other processing) I was also originally thinking about swapping the order of RegNotifyChangeKeyValue and UpdateConfiguration but I think we may miss some notifications in that case.

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I do not see a problem with taking the lock.

@ManickaP

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It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

We didn't want to implement new API, we wanted to change the behavior which at the moment is fetch once per whole process lifetime. So we also talked about rechecking environment variables every time you call GetSystemProxy, which this PR doesn't handle AFAICT.

@ManickaPManickaP mentioned this pull request Jun 13, 2024
Co-authored-by: Jan Kotas <jkotas@microsoft.com>
@wfurt

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all tests failures are known issues. This is ready for another review round.

@rzikm
rzikm self-requested a review July 2, 2024 16:00

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LGTM

@wfurt
wfurt merged commit e71e0f4 into dotnet:mainJul 8, 2024
@wfurt
wfurt deleted the proxyUpdate branch July 8, 2024 04:22
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Aug 7, 2024
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Successfully merging this pull request may close these issues.

HttpClient.DefaultProxy should respect IE proxy changes

5 participants

@wfurt@ManickaP@stephentoub@jkotas@rzikm
, '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

update proxy setting on registry changes - #103364

Merged
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate
Jul 8, 2024
Merged

update proxy setting on registry changes#103364
wfurt merged 15 commits into
dotnet:mainfrom
wfurt:proxyUpdate

Conversation

@wfurt

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Member

update proxy configuration on registry changes on Windows. That for example allows to start Fiddler and start capturing traffic without need to restart the process. It can of course also pick changes user does directly via Setting widget.

fixes#46910 and contributes to #95252.
It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

Note that this does not apply to existing connections. e.g. the updated setting applies only when new connection is needed. If that is problem, it can perhaps be mitigated by either idea or absolute time on connection pool..

It also cannot detect changes to PAC or cases when something changes inside "auto" but there is no registry change.

@wfurtwfurt added this to the 9.0.0 milestone Jun 12, 2024
@wfurt
wfurt requested a review from a teamJune 12, 2024 18:30
@wfurtwfurt self-assigned this Jun 12, 2024
proxy.UpdateConfiguration();
}

private void UpdateConfiguration()

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Choose a reason for hiding this comment

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Is it possible for multiple UpdateConfiguration() callbacks to run in parallel if there are multiple registry edits done in sequence?

We may want to ensure that the most recent UpdateConfiguration wins in this case.

Copy link
Copy Markdown
MemberAuthor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

The notifications do not have content. e.g. I think it would work just fine as long as the updates would finish in sequence they started.

The problem may be if let say there are part A and B. B get updated and that starts update reading old A. A updates, new config update starts and finishes before first update is done. The first task may be winner writing older configuration.

If we feel this is concern we have several options. We can simply lock the proxy object in the callback. Since that is only one place the only contention would be registry notification. But I'm not sure if that can cause any troubles for the thread pool. We can also update ThreadPool.RegisterWaitForSingleObject to fire only once but then we need new registration every time and I don't know how expensive that is (relative to all the other processing) I was also originally thinking about swapping the order of RegNotifyChangeKeyValue and UpdateConfiguration but I think we may miss some notifications in that case.

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I do not see a problem with taking the lock.

@ManickaP

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It does not implement new API #95252 proposed but it seems to fix the use case it is describing.
Perhaps it can be closed as well @ManickaP?

We didn't want to implement new API, we wanted to change the behavior which at the moment is fetch once per whole process lifetime. So we also talked about rechecking environment variables every time you call GetSystemProxy, which this PR doesn't handle AFAICT.

@ManickaPManickaP mentioned this pull request Jun 13, 2024
Co-authored-by: Jan Kotas <jkotas@microsoft.com>
@wfurt

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all tests failures are known issues. This is ready for another review round.

@rzikm
rzikm self-requested a review July 2, 2024 16:00

@rzikmrzikm left a comment

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LGTM

@wfurt
wfurt merged commit e71e0f4 into dotnet:mainJul 8, 2024
@wfurt
wfurt deleted the proxyUpdate branch July 8, 2024 04:22
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Aug 7, 2024
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Successfully merging this pull request may close these issues.

HttpClient.DefaultProxy should respect IE proxy changes

5 participants

@wfurt@ManickaP@stephentoub@jkotas@rzikm