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108 lines
2.7 KiB
Go
108 lines
2.7 KiB
Go
/*
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* MIT License
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*
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* Copyright (c) 2020 Nicolas JUHEL
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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package mail
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const (
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headerImportance = "Importance"
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headerMSMailPriority = "X-MSMail-Priority"
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headerPriority = "X-Priority"
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)
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type Priority uint8
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const (
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// PriorityNormal sets the email priority to normal.
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PriorityNormal Priority = iota
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// PriorityLow sets the email priority to Low.
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PriorityLow
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// PriorityHigh sets the email priority to High.
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PriorityHigh
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)
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func (p Priority) String() string {
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switch p {
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case PriorityLow:
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return "Low"
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case PriorityHigh:
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return "High"
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case PriorityNormal:
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return "Normal"
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}
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return PriorityNormal.String()
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}
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func (p Priority) headerPriority() string {
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switch p {
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case PriorityLow:
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return "5 (Lowest)"
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case PriorityHigh:
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return "1 (Highest)"
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case PriorityNormal:
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return ""
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}
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return PriorityNormal.headerPriority()
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}
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func (p Priority) headerImportance() string {
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switch p {
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case PriorityLow:
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return PriorityLow.String()
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case PriorityHigh:
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return PriorityHigh.String()
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case PriorityNormal:
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return ""
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}
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return PriorityNormal.headerImportance()
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}
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func (p Priority) headerMSMailPriority() string {
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switch p {
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case PriorityLow:
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return PriorityLow.String()
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case PriorityHigh:
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return PriorityHigh.String()
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case PriorityNormal:
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return ""
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}
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return PriorityNormal.headerMSMailPriority()
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}
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func (p Priority) getHeader(h func(key string, values ...string)) {
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for k, f := range map[string]func() string{
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headerPriority: p.headerPriority,
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headerMSMailPriority: p.headerMSMailPriority,
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headerImportance: p.headerImportance,
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} {
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if v := f(); k != "" && v != "" {
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h(k, v)
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}
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}
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}
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